annotate src/terraform_cmd.cpp @ 20618:8dedb76a6fbb draft

(svn r25564) -Add: a simple clipping rule to decide whether a string without linebreaks is visible before computing the layouting. This skips around 2/3 of layout computations in usual-sized list-like windows.
author frosch <frosch@openttd.org>
date Sat, 06 Jul 2013 12:18:20 +0000
parents 0dba7f49118c
children
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1 /* $Id$ */
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2
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3 /*
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4 * This file is part of OpenTTD.
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5 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
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6 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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7 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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8 */
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9
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10 /** @file terraform_cmd.cpp Commands related to terraforming. */
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11
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12 #include "stdafx.h"
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13 #include "command_func.h"
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14 #include "tunnel_map.h"
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15 #include "bridge_map.h"
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16 #include "viewport_func.h"
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17 #include "genworld.h"
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18 #include "object_base.h"
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19 #include "company_base.h"
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20 #include "company_func.h"
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22 #include "table/strings.h"
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24 /*
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25 * In one terraforming command all four corners of a initial tile can be raised/lowered (though this is not available to the player).
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26 * The maximal amount of height modifications is achieved when raising a complete flat land from sea level to MAX_TILE_HEIGHT or vice versa.
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27 * This affects all corners with a manhatten distance smaller than MAX_TILE_HEIGHT to one of the initial 4 corners.
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28 * Their maximal amount is computed to 4 * \sum_{i=1}^{h_max} i = 2 * h_max * (h_max + 1).
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29 */
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30 static const int TERRAFORMER_MODHEIGHT_SIZE = 2 * MAX_TILE_HEIGHT * (MAX_TILE_HEIGHT + 1);
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31
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32 /*
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33 * The maximal amount of affected tiles (i.e. the tiles that incident with one of the corners above, is computed similar to
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34 * 1 + 4 * \sum_{i=1}^{h_max} (i+1) = 1 + 2 * h_max + (h_max + 3).
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35 */
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36 static const int TERRAFORMER_TILE_TABLE_SIZE = 1 + 2 * MAX_TILE_HEIGHT * (MAX_TILE_HEIGHT + 3);
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37
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38 struct TerraformerHeightMod {
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39 TileIndex tile; ///< Referenced tile.
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40 byte height; ///< New TileHeight (height of north corner) of the tile.
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41 };
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42
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43 struct TerraformerState {
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44 int modheight_count; ///< amount of entries in "modheight".
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45 int tile_table_count; ///< amount of entries in "tile_table".
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46
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47 /**
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48 * Dirty tiles, i.e.\ at least one corner changed.
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49 *
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50 * This array contains the tiles which are or will be marked as dirty.
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51 *
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52 * @ingroup dirty
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53 */
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54 TileIndex tile_table[TERRAFORMER_TILE_TABLE_SIZE];
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55 TerraformerHeightMod modheight[TERRAFORMER_MODHEIGHT_SIZE]; ///< Height modifications.
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56 };
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57
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58 TileIndex _terraform_err_tile; ///< first tile we couldn't terraform
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59
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60 /**
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61 * Gets the TileHeight (height of north corner) of a tile as of current terraforming progress.
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62 *
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63 * @param ts TerraformerState.
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64 * @param tile Tile.
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65 * @return TileHeight.
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66 */
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67 static int TerraformGetHeightOfTile(const TerraformerState *ts, TileIndex tile)
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68 {
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69 const TerraformerHeightMod *mod = ts->modheight;
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70
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71 for (int count = ts->modheight_count; count != 0; count--, mod++) {
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72 if (mod->tile == tile) return mod->height;
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73 }
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74
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75 /* TileHeight unchanged so far, read value from map. */
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76 return TileHeight(tile);
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77 }
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78
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79 /**
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80 * Stores the TileHeight (height of north corner) of a tile in a TerraformerState.
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81 *
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82 * @param ts TerraformerState.
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83 * @param tile Tile.
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84 * @param height New TileHeight.
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85 */
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86 static void TerraformSetHeightOfTile(TerraformerState *ts, TileIndex tile, int height)
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87 {
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88 /* Find tile in the "modheight" table.
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89 * Note: In a normal user-terraform command the tile will not be found in the "modheight" table.
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90 * But during house- or industry-construction multiple corners can be terraformed at once. */
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91 TerraformerHeightMod *mod = ts->modheight;
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92 int count = ts->modheight_count;
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93
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94 while ((count > 0) && (mod->tile != tile)) {
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95 mod++;
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96 count--;
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97 }
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98
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99 /* New entry? */
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100 if (count == 0) {
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101 assert(ts->modheight_count < TERRAFORMER_MODHEIGHT_SIZE);
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102 ts->modheight_count++;
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103 }
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104
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105 /* Finally store the new value */
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106 mod->tile = tile;
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107 mod->height = (byte)height;
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108 }
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109
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110 /**
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111 * Adds a tile to the "tile_table" in a TerraformerState.
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parents:
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112 *
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113 * @param ts TerraformerState.
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114 * @param tile Tile.
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115 * @ingroup dirty
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116 */
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117 static void TerraformAddDirtyTile(TerraformerState *ts, TileIndex tile)
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118 {
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119 int count = ts->tile_table_count;
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120
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121 for (TileIndex *t = ts->tile_table; count != 0; count--, t++) {
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122 if (*t == tile) return;
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123 }
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124
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125 assert(ts->tile_table_count < TERRAFORMER_TILE_TABLE_SIZE);
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126
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127 ts->tile_table[ts->tile_table_count++] = tile;
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128 }
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129
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130 /**
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131 * Adds all tiles that incident with the north corner of a specific tile to the "tile_table" in a TerraformerState.
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132 *
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133 * @param ts TerraformerState.
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134 * @param tile Tile.
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135 * @ingroup dirty
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136 */
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137 static void TerraformAddDirtyTileAround(TerraformerState *ts, TileIndex tile)
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138 {
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139 /* Make sure all tiles passed to TerraformAddDirtyTile are within [0, MapSize()] */
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140 if (TileY(tile) >= 1) TerraformAddDirtyTile(ts, tile + TileDiffXY( 0, -1));
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141 if (TileY(tile) >= 1 && TileX(tile) >= 1) TerraformAddDirtyTile(ts, tile + TileDiffXY(-1, -1));
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142 if (TileX(tile) >= 1) TerraformAddDirtyTile(ts, tile + TileDiffXY(-1, 0));
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143 TerraformAddDirtyTile(ts, tile);
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144 }
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145
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146 /**
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147 * Terraform the north corner of a tile to a specific height.
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148 *
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149 * @param ts TerraformerState.
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150 * @param tile Tile.
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151 * @param height Aimed height.
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152 * @return Error code or cost.
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153 */
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154 static CommandCost TerraformTileHeight(TerraformerState *ts, TileIndex tile, int height)
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155 {
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156 assert(tile < MapSize());
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157
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158 /* Check range of destination height */
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159 if (height < 0) return_cmd_error(STR_ERROR_ALREADY_AT_SEA_LEVEL);
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160 if (height > (int)MAX_TILE_HEIGHT) return_cmd_error(STR_ERROR_TOO_HIGH);
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161
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162 /*
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163 * Check if the terraforming has any effect.
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164 * This can only be true, if multiple corners of the start-tile are terraformed (i.e. the terraforming is done by towns/industries etc.).
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165 * In this case the terraforming should fail. (Don't know why.)
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166 */
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167 if (height == TerraformGetHeightOfTile(ts, tile)) return CMD_ERROR;
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168
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169 /* Check "too close to edge of map". Only possible when freeform-edges is off. */
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170 uint x = TileX(tile);
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171 uint y = TileY(tile);
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172 if (!_settings_game.construction.freeform_edges && ((x <= 1) || (y <= 1) || (x >= MapMaxX() - 1) || (y >= MapMaxY() - 1))) {
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173 /*
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174 * Determine a sensible error tile
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175 */
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diff changeset
176 if (x == 1) x = 0;
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diff changeset
177 if (y == 1) y = 0;
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178 _terraform_err_tile = TileXY(x, y);
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diff changeset
179 return_cmd_error(STR_ERROR_TOO_CLOSE_TO_EDGE_OF_MAP);
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180 }
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181
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b1fc0cfd2943 (svn r21060) -Doc: Improved wording of comments (mostly by __ln__)
alberth <alberth@openttd.org>
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diff changeset
182 /* Mark incident tiles that are involved in the terraforming. */
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183 TerraformAddDirtyTileAround(ts, tile);
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184
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185 /* Store the height modification */
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186 TerraformSetHeightOfTile(ts, tile, height);
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187
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diff changeset
188 CommandCost total_cost(EXPENSES_CONSTRUCTION);
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189
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190 /* Increment cost */
13486
f2535c5098a0 (svn r18005) -Codechange: Convert the Prices struct into an array and an enum.
frosch <frosch@openttd.org>
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diff changeset
191 total_cost.AddCost(_price[PR_TERRAFORM]);
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192
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193 /* Recurse to neighboured corners if height difference is larger than 1 */
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194 {
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195 const TileIndexDiffC *ttm;
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196
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197 TileIndex orig_tile = tile;
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198 static const TileIndexDiffC _terraform_tilepos[] = {
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199 { 1, 0}, // move to tile in SE
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200 {-2, 0}, // undo last move, and move to tile in NW
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201 { 1, 1}, // undo last move, and move to tile in SW
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202 { 0, -2} // undo last move, and move to tile in NE
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rubidium <rubidium@openttd.org>
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203 };
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204
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205 for (ttm = _terraform_tilepos; ttm != endof(_terraform_tilepos); ttm++) {
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diff changeset
206 tile += ToTileIndexDiff(*ttm);
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207
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diff changeset
208 if (tile >= MapSize()) continue;
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diff changeset
209 /* Make sure we don't wrap around the map */
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diff changeset
210 if (Delta(TileX(orig_tile), TileX(tile)) == MapSizeX() - 1) continue;
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Yexo <Yexo@openttd.org>
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diff changeset
211 if (Delta(TileY(orig_tile), TileY(tile)) == MapSizeY() - 1) continue;
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diff changeset
212
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213 /* Get TileHeight of neighboured tile as of current terraform progress */
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rubidium <rubidium@openttd.org>
parents:
diff changeset
214 int r = TerraformGetHeightOfTile(ts, tile);
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
215 int height_diff = height - r;
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
216
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
217 /* Is the height difference to the neighboured corner greater than 1? */
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
218 if (abs(height_diff) > 1) {
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
219 /* Terraform the neighboured corner. The resulting height difference should be 1. */
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
220 height_diff += (height_diff < 0 ? 1 : -1);
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
221 CommandCost cost = TerraformTileHeight(ts, tile, r + height_diff);
14314
60d313b887b8 (svn r18866) -Codechange: remove the CmdFailed(ret)/CmdSucceeded(ret) wrapper functions
rubidium <rubidium@openttd.org>
parents: 14175
diff changeset
222 if (cost.Failed()) return cost;
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
223 total_cost.AddCost(cost);
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
224 }
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
225 }
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
226 }
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
227
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
228 return total_cost;
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
229 }
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
230
15620
f8e9a3f0c140 (svn r20283) -Codechange: Unify start of doygen comments.
frosch <frosch@openttd.org>
parents: 15533
diff changeset
231 /**
f8e9a3f0c140 (svn r20283) -Codechange: Unify start of doygen comments.
frosch <frosch@openttd.org>
parents: 15533
diff changeset
232 * Terraform land
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
233 * @param tile tile to terraform
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
234 * @param flags for this command type
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
235 * @param p1 corners to terraform (SLOPE_xxx)
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
236 * @param p2 direction; eg up (non-zero) or down (zero)
13067
082cdb4504ac (svn r17567) -Fix: some doxygen warnings
rubidium <rubidium@openttd.org>
parents: 12778
diff changeset
237 * @param text unused
082cdb4504ac (svn r17567) -Fix: some doxygen warnings
rubidium <rubidium@openttd.org>
parents: 12778
diff changeset
238 * @return the cost of this operation or an error
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
239 */
11090
df23c4e04638 (svn r15434) -Codechange: bit of type safety for the DC_xxx flags.
rubidium <rubidium@openttd.org>
parents: 10960
diff changeset
240 CommandCost CmdTerraformLand(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
241 {
8816
d278baac2725 (svn r12562) -Cleanup: variable scope in terraform_cmd.cpp
smatz <smatz@openttd.org>
parents: 8801
diff changeset
242 _terraform_err_tile = INVALID_TILE;
d278baac2725 (svn r12562) -Cleanup: variable scope in terraform_cmd.cpp
smatz <smatz@openttd.org>
parents: 8801
diff changeset
243
8230
5b61305fcdd4 (svn r11793) -Codechange: pass the expense type via the CommandCost instead of a global variable. Patch by Noldo (FS#1114).
rubidium <rubidium@openttd.org>
parents: 8210
diff changeset
244 CommandCost total_cost(EXPENSES_CONSTRUCTION);
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
245 int direction = (p2 != 0 ? 1 : -1);
8816
d278baac2725 (svn r12562) -Cleanup: variable scope in terraform_cmd.cpp
smatz <smatz@openttd.org>
parents: 8801
diff changeset
246 TerraformerState ts;
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
247
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
248 ts.modheight_count = ts.tile_table_count = 0;
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
249
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
250 /* Compute the costs and the terraforming result in a model of the landscape */
10868
54ff22c7986f (svn r15203) -Fix (r15190): CmdTerraformLand didn't check it's parameters good enough.
Yexo <Yexo@openttd.org>
parents: 10855
diff changeset
251 if ((p1 & SLOPE_W) != 0 && tile + TileDiffXY(1, 0) < MapSize()) {
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
252 TileIndex t = tile + TileDiffXY(1, 0);
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
253 CommandCost cost = TerraformTileHeight(&ts, t, TileHeight(t) + direction);
14314
60d313b887b8 (svn r18866) -Codechange: remove the CmdFailed(ret)/CmdSucceeded(ret) wrapper functions
rubidium <rubidium@openttd.org>
parents: 14175
diff changeset
254 if (cost.Failed()) return cost;
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
255 total_cost.AddCost(cost);
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
256 }
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
257
10868
54ff22c7986f (svn r15203) -Fix (r15190): CmdTerraformLand didn't check it's parameters good enough.
Yexo <Yexo@openttd.org>
parents: 10855
diff changeset
258 if ((p1 & SLOPE_S) != 0 && tile + TileDiffXY(1, 1) < MapSize()) {
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
259 TileIndex t = tile + TileDiffXY(1, 1);
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
260 CommandCost cost = TerraformTileHeight(&ts, t, TileHeight(t) + direction);
14314
60d313b887b8 (svn r18866) -Codechange: remove the CmdFailed(ret)/CmdSucceeded(ret) wrapper functions
rubidium <rubidium@openttd.org>
parents: 14175
diff changeset
261 if (cost.Failed()) return cost;
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
262 total_cost.AddCost(cost);
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
263 }
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
264
10868
54ff22c7986f (svn r15203) -Fix (r15190): CmdTerraformLand didn't check it's parameters good enough.
Yexo <Yexo@openttd.org>
parents: 10855
diff changeset
265 if ((p1 & SLOPE_E) != 0 && tile + TileDiffXY(0, 1) < MapSize()) {
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
266 TileIndex t = tile + TileDiffXY(0, 1);
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
267 CommandCost cost = TerraformTileHeight(&ts, t, TileHeight(t) + direction);
14314
60d313b887b8 (svn r18866) -Codechange: remove the CmdFailed(ret)/CmdSucceeded(ret) wrapper functions
rubidium <rubidium@openttd.org>
parents: 14175
diff changeset
268 if (cost.Failed()) return cost;
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
269 total_cost.AddCost(cost);
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
270 }
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
271
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
272 if ((p1 & SLOPE_N) != 0) {
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
273 TileIndex t = tile + TileDiffXY(0, 0);
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
274 CommandCost cost = TerraformTileHeight(&ts, t, TileHeight(t) + direction);
14314
60d313b887b8 (svn r18866) -Codechange: remove the CmdFailed(ret)/CmdSucceeded(ret) wrapper functions
rubidium <rubidium@openttd.org>
parents: 14175
diff changeset
275 if (cost.Failed()) return cost;
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
276 total_cost.AddCost(cost);
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
277 }
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
278
16561
7ca019b56d4e (svn r21289) -Fix [FS#4133]: Make terraforming and tunnel-excavation handle DC_AUTO-clearable multitile objects.
frosch <frosch@openttd.org>
parents: 16349
diff changeset
279 /* Check if the terraforming is valid wrt. tunnels, bridges and objects on the surface
7ca019b56d4e (svn r21289) -Fix [FS#4133]: Make terraforming and tunnel-excavation handle DC_AUTO-clearable multitile objects.
frosch <frosch@openttd.org>
parents: 16349
diff changeset
280 * Pass == 0: Collect tileareas which are caused to be auto-cleared.
7ca019b56d4e (svn r21289) -Fix [FS#4133]: Make terraforming and tunnel-excavation handle DC_AUTO-clearable multitile objects.
frosch <frosch@openttd.org>
parents: 16349
diff changeset
281 * Pass == 1: Collect the actual cost. */
7ca019b56d4e (svn r21289) -Fix [FS#4133]: Make terraforming and tunnel-excavation handle DC_AUTO-clearable multitile objects.
frosch <frosch@openttd.org>
parents: 16349
diff changeset
282 for (int pass = 0; pass < 2; pass++) {
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
283 TileIndex *ti = ts.tile_table;
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
284
8816
d278baac2725 (svn r12562) -Cleanup: variable scope in terraform_cmd.cpp
smatz <smatz@openttd.org>
parents: 8801
diff changeset
285 for (int count = ts.tile_table_count; count != 0; count--, ti++) {
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
286 TileIndex tile = *ti;
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
287
10855
7881d9cd55ab (svn r15190) -Feature: Allow terraforming of the tiles at the edges of the map.
Yexo <Yexo@openttd.org>
parents: 10816
diff changeset
288 assert(tile < MapSize());
7881d9cd55ab (svn r15190) -Feature: Allow terraforming of the tiles at the edges of the map.
Yexo <Yexo@openttd.org>
parents: 10816
diff changeset
289 /* MP_VOID tiles can be terraformed but as tunnels and bridges
7881d9cd55ab (svn r15190) -Feature: Allow terraforming of the tiles at the edges of the map.
Yexo <Yexo@openttd.org>
parents: 10816
diff changeset
290 * cannot go under / over these tiles they don't need checking. */
7881d9cd55ab (svn r15190) -Feature: Allow terraforming of the tiles at the edges of the map.
Yexo <Yexo@openttd.org>
parents: 10816
diff changeset
291 if (IsTileType(tile, MP_VOID)) continue;
7881d9cd55ab (svn r15190) -Feature: Allow terraforming of the tiles at the edges of the map.
Yexo <Yexo@openttd.org>
parents: 10816
diff changeset
292
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
293 /* Find new heights of tile corners */
18270
432112453b2e (svn r23106) -Codechange: pass int* to GetTileSlope and friends
rubidium <rubidium@openttd.org>
parents: 18264
diff changeset
294 int z_N = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(0, 0));
432112453b2e (svn r23106) -Codechange: pass int* to GetTileSlope and friends
rubidium <rubidium@openttd.org>
parents: 18264
diff changeset
295 int z_W = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(1, 0));
432112453b2e (svn r23106) -Codechange: pass int* to GetTileSlope and friends
rubidium <rubidium@openttd.org>
parents: 18264
diff changeset
296 int z_S = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(1, 1));
432112453b2e (svn r23106) -Codechange: pass int* to GetTileSlope and friends
rubidium <rubidium@openttd.org>
parents: 18264
diff changeset
297 int z_E = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(0, 1));
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
298
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
299 /* Find min and max height of tile */
18270
432112453b2e (svn r23106) -Codechange: pass int* to GetTileSlope and friends
rubidium <rubidium@openttd.org>
parents: 18264
diff changeset
300 int z_min = min(min(z_N, z_W), min(z_S, z_E));
432112453b2e (svn r23106) -Codechange: pass int* to GetTileSlope and friends
rubidium <rubidium@openttd.org>
parents: 18264
diff changeset
301 int z_max = max(max(z_N, z_W), max(z_S, z_E));
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
302
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
303 /* Compute tile slope */
8801
9fe7640963e3 (svn r12541) -Codechange: Declare Slope enum as bit set, and remove some (then) unneeded casts.
frosch <frosch@openttd.org>
parents: 8264
diff changeset
304 Slope tileh = (z_max > z_min + 1 ? SLOPE_STEEP : SLOPE_FLAT);
9fe7640963e3 (svn r12541) -Codechange: Declare Slope enum as bit set, and remove some (then) unneeded casts.
frosch <frosch@openttd.org>
parents: 8264
diff changeset
305 if (z_W > z_min) tileh |= SLOPE_W;
9fe7640963e3 (svn r12541) -Codechange: Declare Slope enum as bit set, and remove some (then) unneeded casts.
frosch <frosch@openttd.org>
parents: 8264
diff changeset
306 if (z_S > z_min) tileh |= SLOPE_S;
9fe7640963e3 (svn r12541) -Codechange: Declare Slope enum as bit set, and remove some (then) unneeded casts.
frosch <frosch@openttd.org>
parents: 8264
diff changeset
307 if (z_E > z_min) tileh |= SLOPE_E;
9fe7640963e3 (svn r12541) -Codechange: Declare Slope enum as bit set, and remove some (then) unneeded casts.
frosch <frosch@openttd.org>
parents: 8264
diff changeset
308 if (z_N > z_min) tileh |= SLOPE_N;
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
309
17676
3be3d8523223 (svn r22451) -Codechange: Test for bridges and tunnels during the first pass only while terraforming (HackaLittleBit)
alberth <alberth@openttd.org>
parents: 17277
diff changeset
310 if (pass == 0) {
3be3d8523223 (svn r22451) -Codechange: Test for bridges and tunnels during the first pass only while terraforming (HackaLittleBit)
alberth <alberth@openttd.org>
parents: 17277
diff changeset
311 /* Check if bridge would take damage */
3be3d8523223 (svn r22451) -Codechange: Test for bridges and tunnels during the first pass only while terraforming (HackaLittleBit)
alberth <alberth@openttd.org>
parents: 17277
diff changeset
312 if (direction == 1 && MayHaveBridgeAbove(tile) && IsBridgeAbove(tile) &&
18261
9cdb7965ac4a (svn r23097) -Codechange: remove pointless multiplications by TILE_HEIGHT from the bridge code
rubidium <rubidium@openttd.org>
parents: 18255
diff changeset
313 GetBridgeHeight(GetSouthernBridgeEnd(tile)) <= z_max) {
17676
3be3d8523223 (svn r22451) -Codechange: Test for bridges and tunnels during the first pass only while terraforming (HackaLittleBit)
alberth <alberth@openttd.org>
parents: 17277
diff changeset
314 _terraform_err_tile = tile; // highlight the tile under the bridge
3be3d8523223 (svn r22451) -Codechange: Test for bridges and tunnels during the first pass only while terraforming (HackaLittleBit)
alberth <alberth@openttd.org>
parents: 17277
diff changeset
315 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
3be3d8523223 (svn r22451) -Codechange: Test for bridges and tunnels during the first pass only while terraforming (HackaLittleBit)
alberth <alberth@openttd.org>
parents: 17277
diff changeset
316 }
3be3d8523223 (svn r22451) -Codechange: Test for bridges and tunnels during the first pass only while terraforming (HackaLittleBit)
alberth <alberth@openttd.org>
parents: 17277
diff changeset
317 /* Check if tunnel would take damage */
18262
9fcde0b48dcd (svn r23098) -Codechange: remove pointless multiplications by TILE_HEIGHT from the tunnel code
rubidium <rubidium@openttd.org>
parents: 18261
diff changeset
318 if (direction == -1 && IsTunnelInWay(tile, z_min)) {
17676
3be3d8523223 (svn r22451) -Codechange: Test for bridges and tunnels during the first pass only while terraforming (HackaLittleBit)
alberth <alberth@openttd.org>
parents: 17277
diff changeset
319 _terraform_err_tile = tile; // highlight the tile above the tunnel
3be3d8523223 (svn r22451) -Codechange: Test for bridges and tunnels during the first pass only while terraforming (HackaLittleBit)
alberth <alberth@openttd.org>
parents: 17277
diff changeset
320 return_cmd_error(STR_ERROR_EXCAVATION_WOULD_DAMAGE);
3be3d8523223 (svn r22451) -Codechange: Test for bridges and tunnels during the first pass only while terraforming (HackaLittleBit)
alberth <alberth@openttd.org>
parents: 17277
diff changeset
321 }
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
322 }
16561
7ca019b56d4e (svn r21289) -Fix [FS#4133]: Make terraforming and tunnel-excavation handle DC_AUTO-clearable multitile objects.
frosch <frosch@openttd.org>
parents: 16349
diff changeset
323
7ca019b56d4e (svn r21289) -Fix [FS#4133]: Make terraforming and tunnel-excavation handle DC_AUTO-clearable multitile objects.
frosch <frosch@openttd.org>
parents: 16349
diff changeset
324 /* Is the tile already cleared? */
7ca019b56d4e (svn r21289) -Fix [FS#4133]: Make terraforming and tunnel-excavation handle DC_AUTO-clearable multitile objects.
frosch <frosch@openttd.org>
parents: 16349
diff changeset
325 const ClearedObjectArea *coa = FindClearedObject(tile);
7ca019b56d4e (svn r21289) -Fix [FS#4133]: Make terraforming and tunnel-excavation handle DC_AUTO-clearable multitile objects.
frosch <frosch@openttd.org>
parents: 16349
diff changeset
326 bool indirectly_cleared = coa != NULL && coa->first_tile != tile;
7ca019b56d4e (svn r21289) -Fix [FS#4133]: Make terraforming and tunnel-excavation handle DC_AUTO-clearable multitile objects.
frosch <frosch@openttd.org>
parents: 16349
diff changeset
327
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
328 /* Check tiletype-specific things, and add extra-cost */
9309
f34f4fa2950c (svn r13177) -Fix[FS#2002]: Using level tool in scenario editor makes tiles brown. That is the only tool that does so in Scenario Editor (apart dynamite, of course).Report and Fix by Roujin
belugas <belugas@openttd.org>
parents: 8816
diff changeset
329 const bool curr_gen = _generating_world;
f34f4fa2950c (svn r13177) -Fix[FS#2002]: Using level tool in scenario editor makes tiles brown. That is the only tool that does so in Scenario Editor (apart dynamite, of course).Report and Fix by Roujin
belugas <belugas@openttd.org>
parents: 8816
diff changeset
330 if (_game_mode == GM_EDITOR) _generating_world = true; // used to create green terraformed land
16561
7ca019b56d4e (svn r21289) -Fix [FS#4133]: Make terraforming and tunnel-excavation handle DC_AUTO-clearable multitile objects.
frosch <frosch@openttd.org>
parents: 16349
diff changeset
331 DoCommandFlag tile_flags = flags | DC_AUTO | DC_FORCE_CLEAR_TILE;
7ca019b56d4e (svn r21289) -Fix [FS#4133]: Make terraforming and tunnel-excavation handle DC_AUTO-clearable multitile objects.
frosch <frosch@openttd.org>
parents: 16349
diff changeset
332 if (pass == 0) {
7ca019b56d4e (svn r21289) -Fix [FS#4133]: Make terraforming and tunnel-excavation handle DC_AUTO-clearable multitile objects.
frosch <frosch@openttd.org>
parents: 16349
diff changeset
333 tile_flags &= ~DC_EXEC;
7ca019b56d4e (svn r21289) -Fix [FS#4133]: Make terraforming and tunnel-excavation handle DC_AUTO-clearable multitile objects.
frosch <frosch@openttd.org>
parents: 16349
diff changeset
334 tile_flags |= DC_NO_MODIFY_TOWN_RATING;
7ca019b56d4e (svn r21289) -Fix [FS#4133]: Make terraforming and tunnel-excavation handle DC_AUTO-clearable multitile objects.
frosch <frosch@openttd.org>
parents: 16349
diff changeset
335 }
7ca019b56d4e (svn r21289) -Fix [FS#4133]: Make terraforming and tunnel-excavation handle DC_AUTO-clearable multitile objects.
frosch <frosch@openttd.org>
parents: 16349
diff changeset
336 CommandCost cost;
7ca019b56d4e (svn r21289) -Fix [FS#4133]: Make terraforming and tunnel-excavation handle DC_AUTO-clearable multitile objects.
frosch <frosch@openttd.org>
parents: 16349
diff changeset
337 if (indirectly_cleared) {
7ca019b56d4e (svn r21289) -Fix [FS#4133]: Make terraforming and tunnel-excavation handle DC_AUTO-clearable multitile objects.
frosch <frosch@openttd.org>
parents: 16349
diff changeset
338 cost = DoCommand(tile, 0, 0, tile_flags, CMD_LANDSCAPE_CLEAR);
7ca019b56d4e (svn r21289) -Fix [FS#4133]: Make terraforming and tunnel-excavation handle DC_AUTO-clearable multitile objects.
frosch <frosch@openttd.org>
parents: 16349
diff changeset
339 } else {
18264
e33480209002 (svn r23100) -Codechange: remove pointless multiplications by TILE_HEIGHT for the terraform code
rubidium <rubidium@openttd.org>
parents: 18262
diff changeset
340 cost = _tile_type_procs[GetTileType(tile)]->terraform_tile_proc(tile, tile_flags, z_min, tileh);
16561
7ca019b56d4e (svn r21289) -Fix [FS#4133]: Make terraforming and tunnel-excavation handle DC_AUTO-clearable multitile objects.
frosch <frosch@openttd.org>
parents: 16349
diff changeset
341 }
9309
f34f4fa2950c (svn r13177) -Fix[FS#2002]: Using level tool in scenario editor makes tiles brown. That is the only tool that does so in Scenario Editor (apart dynamite, of course).Report and Fix by Roujin
belugas <belugas@openttd.org>
parents: 8816
diff changeset
342 _generating_world = curr_gen;
14314
60d313b887b8 (svn r18866) -Codechange: remove the CmdFailed(ret)/CmdSucceeded(ret) wrapper functions
rubidium <rubidium@openttd.org>
parents: 14175
diff changeset
343 if (cost.Failed()) {
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
344 _terraform_err_tile = tile;
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
345 return cost;
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
346 }
16561
7ca019b56d4e (svn r21289) -Fix [FS#4133]: Make terraforming and tunnel-excavation handle DC_AUTO-clearable multitile objects.
frosch <frosch@openttd.org>
parents: 16349
diff changeset
347 if (pass == 1) total_cost.AddCost(cost);
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
348 }
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
349 }
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
350
16992
e364b524e15a (svn r21728) -Fix/Feature [FS#4331]: (configurably) limit amount of tiles that can be cleared/terraformed by a company
rubidium <rubidium@openttd.org>
parents: 16767
diff changeset
351 Company *c = Company::GetIfValid(_current_company);
e364b524e15a (svn r21728) -Fix/Feature [FS#4331]: (configurably) limit amount of tiles that can be cleared/terraformed by a company
rubidium <rubidium@openttd.org>
parents: 16767
diff changeset
352 if (c != NULL && (int)GB(c->terraform_limit, 16, 16) < ts.modheight_count) {
e364b524e15a (svn r21728) -Fix/Feature [FS#4331]: (configurably) limit amount of tiles that can be cleared/terraformed by a company
rubidium <rubidium@openttd.org>
parents: 16767
diff changeset
353 return_cmd_error(STR_ERROR_TERRAFORM_LIMIT_REACHED);
e364b524e15a (svn r21728) -Fix/Feature [FS#4331]: (configurably) limit amount of tiles that can be cleared/terraformed by a company
rubidium <rubidium@openttd.org>
parents: 16767
diff changeset
354 }
e364b524e15a (svn r21728) -Fix/Feature [FS#4331]: (configurably) limit amount of tiles that can be cleared/terraformed by a company
rubidium <rubidium@openttd.org>
parents: 16767
diff changeset
355
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
356 if (flags & DC_EXEC) {
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
357 /* change the height */
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
358 {
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
359 int count;
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
360 TerraformerHeightMod *mod;
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
361
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
362 mod = ts.modheight;
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
363 for (count = ts.modheight_count; count != 0; count--, mod++) {
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
364 TileIndex til = mod->tile;
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
365
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
366 SetTileHeight(til, mod->height);
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
367 }
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
368 }
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
369
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
370 /* finally mark the dirty tiles dirty */
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
371 {
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
372 int count;
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
373 TileIndex *ti = ts.tile_table;
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
374 for (count = ts.tile_table_count; count != 0; count--, ti++) {
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
375 MarkTileDirtyByTile(*ti);
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
376 }
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
377 }
16992
e364b524e15a (svn r21728) -Fix/Feature [FS#4331]: (configurably) limit amount of tiles that can be cleared/terraformed by a company
rubidium <rubidium@openttd.org>
parents: 16767
diff changeset
378
e364b524e15a (svn r21728) -Fix/Feature [FS#4331]: (configurably) limit amount of tiles that can be cleared/terraformed by a company
rubidium <rubidium@openttd.org>
parents: 16767
diff changeset
379 if (c != NULL) c->terraform_limit -= ts.modheight_count << 16;
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
380 }
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
381 return total_cost;
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
382 }
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
383
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
384
15620
f8e9a3f0c140 (svn r20283) -Codechange: Unify start of doygen comments.
frosch <frosch@openttd.org>
parents: 15533
diff changeset
385 /**
f8e9a3f0c140 (svn r20283) -Codechange: Unify start of doygen comments.
frosch <frosch@openttd.org>
parents: 15533
diff changeset
386 * Levels a selected (rectangle) area of land
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
387 * @param tile end tile of area-drag
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
388 * @param flags for this command type
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
389 * @param p1 start tile of area drag
16760
9e31dde37aed (svn r21493) -Codechange: don't use the full 32 bits of the level land command to tell whether to raise, lower or keep the level of the first selected tile
rubidium <rubidium@openttd.org>
parents: 16561
diff changeset
390 * @param p2 various bitstuffed data.
16767
3a5666e0d4bc (svn r21500) -Feature [FS#730]: diagonal tile clearing and terraforming. Based on patch by fonsinchen
rubidium <rubidium@openttd.org>
parents: 16762
diff changeset
391 * bit 0: Whether to use the Orthogonal (0) or Diagonal (1) iterator.
16760
9e31dde37aed (svn r21493) -Codechange: don't use the full 32 bits of the level land command to tell whether to raise, lower or keep the level of the first selected tile
rubidium <rubidium@openttd.org>
parents: 16561
diff changeset
392 * bits 1 - 2: Mode of leveling \c LevelMode.
13067
082cdb4504ac (svn r17567) -Fix: some doxygen warnings
rubidium <rubidium@openttd.org>
parents: 12778
diff changeset
393 * @param text unused
082cdb4504ac (svn r17567) -Fix: some doxygen warnings
rubidium <rubidium@openttd.org>
parents: 12778
diff changeset
394 * @return the cost of this operation or an error
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
395 */
11090
df23c4e04638 (svn r15434) -Codechange: bit of type safety for the DC_xxx flags.
rubidium <rubidium@openttd.org>
parents: 10960
diff changeset
396 CommandCost CmdLevelLand(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
397 {
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
398 if (p1 >= MapSize()) return CMD_ERROR;
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
399
10804
2c9373a99b65 (svn r15138) -Fix [FS#2542]: tile error location not reset when leveling land causing a tile to be highlighted when there was nothing to flatten.
rubidium <rubidium@openttd.org>
parents: 10499
diff changeset
400 _terraform_err_tile = INVALID_TILE;
2c9373a99b65 (svn r15138) -Fix [FS#2542]: tile error location not reset when leveling land causing a tile to be highlighted when there was nothing to flatten.
rubidium <rubidium@openttd.org>
parents: 10499
diff changeset
401
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
402 /* remember level height */
8816
d278baac2725 (svn r12562) -Cleanup: variable scope in terraform_cmd.cpp
smatz <smatz@openttd.org>
parents: 8801
diff changeset
403 uint oldh = TileHeight(p1);
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
404
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
405 /* compute new height */
16760
9e31dde37aed (svn r21493) -Codechange: don't use the full 32 bits of the level land command to tell whether to raise, lower or keep the level of the first selected tile
rubidium <rubidium@openttd.org>
parents: 16561
diff changeset
406 uint h = oldh;
9e31dde37aed (svn r21493) -Codechange: don't use the full 32 bits of the level land command to tell whether to raise, lower or keep the level of the first selected tile
rubidium <rubidium@openttd.org>
parents: 16561
diff changeset
407 LevelMode lm = (LevelMode)GB(p2, 1, 2);
9e31dde37aed (svn r21493) -Codechange: don't use the full 32 bits of the level land command to tell whether to raise, lower or keep the level of the first selected tile
rubidium <rubidium@openttd.org>
parents: 16561
diff changeset
408 switch (lm) {
9e31dde37aed (svn r21493) -Codechange: don't use the full 32 bits of the level land command to tell whether to raise, lower or keep the level of the first selected tile
rubidium <rubidium@openttd.org>
parents: 16561
diff changeset
409 case LM_LEVEL: break;
9e31dde37aed (svn r21493) -Codechange: don't use the full 32 bits of the level land command to tell whether to raise, lower or keep the level of the first selected tile
rubidium <rubidium@openttd.org>
parents: 16561
diff changeset
410 case LM_RAISE: h++; break;
9e31dde37aed (svn r21493) -Codechange: don't use the full 32 bits of the level land command to tell whether to raise, lower or keep the level of the first selected tile
rubidium <rubidium@openttd.org>
parents: 16561
diff changeset
411 case LM_LOWER: h--; break;
9e31dde37aed (svn r21493) -Codechange: don't use the full 32 bits of the level land command to tell whether to raise, lower or keep the level of the first selected tile
rubidium <rubidium@openttd.org>
parents: 16561
diff changeset
412 default: return CMD_ERROR;
9e31dde37aed (svn r21493) -Codechange: don't use the full 32 bits of the level land command to tell whether to raise, lower or keep the level of the first selected tile
rubidium <rubidium@openttd.org>
parents: 16561
diff changeset
413 }
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
414
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
415 /* Check range of destination height */
11730
a39da1e4c1f5 (svn r16118) -Change/cleanup: remove the hexadecimal 'in TTD the string had this ID' from 'some' strings and replace the string name with something more sensible.
rubidium <rubidium@openttd.org>
parents: 11090
diff changeset
416 if (h > MAX_TILE_HEIGHT) return_cmd_error((oldh == 0) ? STR_ERROR_ALREADY_AT_SEA_LEVEL : STR_ERROR_TOO_HIGH);
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
417
8816
d278baac2725 (svn r12562) -Cleanup: variable scope in terraform_cmd.cpp
smatz <smatz@openttd.org>
parents: 8801
diff changeset
418 Money money = GetAvailableMoneyForCommand();
d278baac2725 (svn r12562) -Cleanup: variable scope in terraform_cmd.cpp
smatz <smatz@openttd.org>
parents: 8801
diff changeset
419 CommandCost cost(EXPENSES_CONSTRUCTION);
16760
9e31dde37aed (svn r21493) -Codechange: don't use the full 32 bits of the level land command to tell whether to raise, lower or keep the level of the first selected tile
rubidium <rubidium@openttd.org>
parents: 16561
diff changeset
420 CommandCost last_error(lm == LM_LEVEL ? STR_ERROR_ALREADY_LEVELLED : INVALID_STRING_ID);
14894
d91811686eca (svn r19490) -Fix: Return to old behaviour of CmdLevelLand() by keeping track of last error.
alberth <alberth@openttd.org>
parents: 14728
diff changeset
421 bool had_success = false;
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
422
16992
e364b524e15a (svn r21728) -Fix/Feature [FS#4331]: (configurably) limit amount of tiles that can be cleared/terraformed by a company
rubidium <rubidium@openttd.org>
parents: 16767
diff changeset
423 const Company *c = Company::GetIfValid(_current_company);
e364b524e15a (svn r21728) -Fix/Feature [FS#4331]: (configurably) limit amount of tiles that can be cleared/terraformed by a company
rubidium <rubidium@openttd.org>
parents: 16767
diff changeset
424 int limit = (c == NULL ? INT32_MAX : GB(c->terraform_limit, 16, 16));
16996
0c0473c260b1 (svn r21732) -Fix (r21728): show the "proper" error that the landscaping limit is reached instead of "already flat"
rubidium <rubidium@openttd.org>
parents: 16992
diff changeset
425 if (limit == 0) return_cmd_error(STR_ERROR_TERRAFORM_LIMIT_REACHED);
16992
e364b524e15a (svn r21728) -Fix/Feature [FS#4331]: (configurably) limit amount of tiles that can be cleared/terraformed by a company
rubidium <rubidium@openttd.org>
parents: 16767
diff changeset
426
14175
f1393258ecd5 (svn r18723) -Codechange: also simplify looping over an area when building trees, desert, rocky areas or leveling land
rubidium <rubidium@openttd.org>
parents: 13486
diff changeset
427 TileArea ta(tile, p1);
16767
3a5666e0d4bc (svn r21500) -Feature [FS#730]: diagonal tile clearing and terraforming. Based on patch by fonsinchen
rubidium <rubidium@openttd.org>
parents: 16762
diff changeset
428 TileIterator *iter = HasBit(p2, 0) ? (TileIterator *)new DiagonalTileIterator(tile, p1) : new OrthogonalTileIterator(ta);
3a5666e0d4bc (svn r21500) -Feature [FS#730]: diagonal tile clearing and terraforming. Based on patch by fonsinchen
rubidium <rubidium@openttd.org>
parents: 16762
diff changeset
429 for (; *iter != INVALID_TILE; ++(*iter)) {
3a5666e0d4bc (svn r21500) -Feature [FS#730]: diagonal tile clearing and terraforming. Based on patch by fonsinchen
rubidium <rubidium@openttd.org>
parents: 16762
diff changeset
430 TileIndex t = *iter;
16762
c0ddbaaeb487 (svn r21495) -Codechange: don't hide a local variable
rubidium <rubidium@openttd.org>
parents: 16760
diff changeset
431 uint curh = TileHeight(t);
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
432 while (curh != h) {
16762
c0ddbaaeb487 (svn r21495) -Codechange: don't hide a local variable
rubidium <rubidium@openttd.org>
parents: 16760
diff changeset
433 CommandCost ret = DoCommand(t, SLOPE_N, (curh > h) ? 0 : 1, flags & ~DC_EXEC, CMD_TERRAFORM_LAND);
14894
d91811686eca (svn r19490) -Fix: Return to old behaviour of CmdLevelLand() by keeping track of last error.
alberth <alberth@openttd.org>
parents: 14728
diff changeset
434 if (ret.Failed()) {
d91811686eca (svn r19490) -Fix: Return to old behaviour of CmdLevelLand() by keeping track of last error.
alberth <alberth@openttd.org>
parents: 14728
diff changeset
435 last_error = ret;
16992
e364b524e15a (svn r21728) -Fix/Feature [FS#4331]: (configurably) limit amount of tiles that can be cleared/terraformed by a company
rubidium <rubidium@openttd.org>
parents: 16767
diff changeset
436
e364b524e15a (svn r21728) -Fix/Feature [FS#4331]: (configurably) limit amount of tiles that can be cleared/terraformed by a company
rubidium <rubidium@openttd.org>
parents: 16767
diff changeset
437 /* Did we reach the limit? */
e364b524e15a (svn r21728) -Fix/Feature [FS#4331]: (configurably) limit amount of tiles that can be cleared/terraformed by a company
rubidium <rubidium@openttd.org>
parents: 16767
diff changeset
438 if (ret.GetErrorMessage() == STR_ERROR_TERRAFORM_LIMIT_REACHED) limit = 0;
14894
d91811686eca (svn r19490) -Fix: Return to old behaviour of CmdLevelLand() by keeping track of last error.
alberth <alberth@openttd.org>
parents: 14728
diff changeset
439 break;
d91811686eca (svn r19490) -Fix: Return to old behaviour of CmdLevelLand() by keeping track of last error.
alberth <alberth@openttd.org>
parents: 14728
diff changeset
440 }
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
441
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
442 if (flags & DC_EXEC) {
8816
d278baac2725 (svn r12562) -Cleanup: variable scope in terraform_cmd.cpp
smatz <smatz@openttd.org>
parents: 8801
diff changeset
443 money -= ret.GetCost();
d278baac2725 (svn r12562) -Cleanup: variable scope in terraform_cmd.cpp
smatz <smatz@openttd.org>
parents: 8801
diff changeset
444 if (money < 0) {
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
445 _additional_cash_required = ret.GetCost();
16767
3a5666e0d4bc (svn r21500) -Feature [FS#730]: diagonal tile clearing and terraforming. Based on patch by fonsinchen
rubidium <rubidium@openttd.org>
parents: 16762
diff changeset
446 delete iter;
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
447 return cost;
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
448 }
16762
c0ddbaaeb487 (svn r21495) -Codechange: don't hide a local variable
rubidium <rubidium@openttd.org>
parents: 16760
diff changeset
449 DoCommand(t, SLOPE_N, (curh > h) ? 0 : 1, flags, CMD_TERRAFORM_LAND);
16992
e364b524e15a (svn r21728) -Fix/Feature [FS#4331]: (configurably) limit amount of tiles that can be cleared/terraformed by a company
rubidium <rubidium@openttd.org>
parents: 16767
diff changeset
450 } else {
e364b524e15a (svn r21728) -Fix/Feature [FS#4331]: (configurably) limit amount of tiles that can be cleared/terraformed by a company
rubidium <rubidium@openttd.org>
parents: 16767
diff changeset
451 /* When we're at the terraform limit we better bail (unneeded) testing as well.
e364b524e15a (svn r21728) -Fix/Feature [FS#4331]: (configurably) limit amount of tiles that can be cleared/terraformed by a company
rubidium <rubidium@openttd.org>
parents: 16767
diff changeset
452 * This will probably cause the terraforming cost to be underestimated, but only
e364b524e15a (svn r21728) -Fix/Feature [FS#4331]: (configurably) limit amount of tiles that can be cleared/terraformed by a company
rubidium <rubidium@openttd.org>
parents: 16767
diff changeset
453 * when it's near the terraforming limit. Even then, the estimation is
e364b524e15a (svn r21728) -Fix/Feature [FS#4331]: (configurably) limit amount of tiles that can be cleared/terraformed by a company
rubidium <rubidium@openttd.org>
parents: 16767
diff changeset
454 * completely off due to it basically counting terraforming double, so it being
e364b524e15a (svn r21728) -Fix/Feature [FS#4331]: (configurably) limit amount of tiles that can be cleared/terraformed by a company
rubidium <rubidium@openttd.org>
parents: 16767
diff changeset
455 * cut off earlier might even give a better estimate in some cases. */
17054
edf90c14dda2 (svn r21791) -Fix [FS#4407]: off-by-one-ish for the terraforming limit
rubidium <rubidium@openttd.org>
parents: 16996
diff changeset
456 if (--limit <= 0) {
edf90c14dda2 (svn r21791) -Fix [FS#4407]: off-by-one-ish for the terraforming limit
rubidium <rubidium@openttd.org>
parents: 16996
diff changeset
457 had_success = true;
edf90c14dda2 (svn r21791) -Fix [FS#4407]: off-by-one-ish for the terraforming limit
rubidium <rubidium@openttd.org>
parents: 16996
diff changeset
458 break;
edf90c14dda2 (svn r21791) -Fix [FS#4407]: off-by-one-ish for the terraforming limit
rubidium <rubidium@openttd.org>
parents: 16996
diff changeset
459 }
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
460 }
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
461
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
462 cost.AddCost(ret);
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
463 curh += (curh > h) ? -1 : 1;
14894
d91811686eca (svn r19490) -Fix: Return to old behaviour of CmdLevelLand() by keeping track of last error.
alberth <alberth@openttd.org>
parents: 14728
diff changeset
464 had_success = true;
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
465 }
16992
e364b524e15a (svn r21728) -Fix/Feature [FS#4331]: (configurably) limit amount of tiles that can be cleared/terraformed by a company
rubidium <rubidium@openttd.org>
parents: 16767
diff changeset
466
e364b524e15a (svn r21728) -Fix/Feature [FS#4331]: (configurably) limit amount of tiles that can be cleared/terraformed by a company
rubidium <rubidium@openttd.org>
parents: 16767
diff changeset
467 if (limit <= 0) break;
12529
f24901a2ad84 (svn r16966) -Codechange: BEGIN_TILE_LOOP and END_TILE_LOOP reworked into TILE_LOOP, which means no more duplication of parameters between BEGIN_TILE_LOOP and END_TILE_LOOP
rubidium <rubidium@openttd.org>
parents: 11730
diff changeset
468 }
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
469
16767
3a5666e0d4bc (svn r21500) -Feature [FS#730]: diagonal tile clearing and terraforming. Based on patch by fonsinchen
rubidium <rubidium@openttd.org>
parents: 16762
diff changeset
470 delete iter;
14894
d91811686eca (svn r19490) -Fix: Return to old behaviour of CmdLevelLand() by keeping track of last error.
alberth <alberth@openttd.org>
parents: 14728
diff changeset
471 return had_success ? cost : last_error;
8210
2191f47ab047 (svn r11773) -Codechange: move some non-clear-land functions from clear_cmd.cpp to a more correct location.
rubidium <rubidium@openttd.org>
parents:
diff changeset
472 }