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annotate src/heightmap.cpp @ 5584:4b26bd55bd24 draft

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(svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
author KUDr <KUDr@openttd.org>
date Wed, 10 Jan 2007 18:12:09 +0000
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children c44c070c5032
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5584
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KUDr <KUDr@openttd.org>
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1 /* $Id$ */
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2
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3 #include "stdafx.h"
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4 #include "openttd.h"
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5 #include "variables.h"
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6 #include "functions.h"
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7 #include "heightmap.h"
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8 #include "clear_map.h"
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9 #include "table/strings.h"
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10 #include "void_map.h"
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11 #include "debug.h"
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12 #include "gfx.h"
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13 #include "gui.h"
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14 #include "saveload.h"
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15 #include "bmp.h"
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16
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17 /**
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18 * Convert RGB colors to Grayscale using 29.9% Red, 58.7% Green, 11.4% Blue
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19 * (average luminosity formula) -- Dalestan
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20 * This in fact is the NTSC Color Space -- TrueLight
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21 */
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22 static inline byte RGBToGrayscale(byte red, byte green, byte blue)
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23 {
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24 /* To avoid doubles and stuff, multiple it with a total of 65536 (16bits), then
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25 * divide by it to normalize the value to a byte again. */
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26 return ((red * 19595) + (green * 38470) + (blue * 7471)) / 65536;
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27 }
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28
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29
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30 #ifdef WITH_PNG
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31
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32 #include "png.h"
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33
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34 /**
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35 * The PNG Heightmap loader.
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36 */
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37 static void ReadHeightmapPNGImageData(byte *map, png_structp png_ptr, png_infop info_ptr)
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38 {
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39 uint x, y;
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40 byte gray_palette[256];
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41 png_bytep *row_pointers = NULL;
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42
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43 /* Get palette and convert it to grayscale */
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44 if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) {
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45 int i;
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46 int palette_size;
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47 png_color *palette;
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48 bool all_gray = true;
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49
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50 png_get_PLTE(png_ptr, info_ptr, &palette, &palette_size);
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51 for (i = 0; i < palette_size && (palette_size != 16 || all_gray); i++) {
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52 all_gray &= palette[i].red == palette[i].green && palette[i].red == palette[i].blue;
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53 gray_palette[i] = RGBToGrayscale(palette[i].red, palette[i].green, palette[i].blue);
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54 }
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55
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56 /**
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57 * For a non-gray palette of size 16 we assume that
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58 * the order of the palette determines the height;
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59 * the first entry is the sea (level 0), the second one
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60 * level 1, etc.
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61 */
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62 if (palette_size == 16 && !all_gray) {
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63 for (i = 0; i < palette_size; i++) {
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64 gray_palette[i] = 256 * i / palette_size;
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65 }
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66 }
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67 }
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68
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69 row_pointers = png_get_rows(png_ptr, info_ptr);
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70
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71 /* Read the raw image data and convert in 8-bit grayscale */
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72 for (x = 0; x < info_ptr->width; x++) {
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73 for (y = 0; y < info_ptr->height; y++) {
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74 byte *pixel = &map[y * info_ptr->width + x];
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75 uint x_offset = x * info_ptr->channels;
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76
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77 if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) {
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78 *pixel = gray_palette[row_pointers[y][x_offset]];
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79 } else if (info_ptr->channels == 3) {
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80 *pixel = RGBToGrayscale(row_pointers[y][x_offset + 0],
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81 row_pointers[y][x_offset + 1], row_pointers[y][x_offset + 2]);
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82 } else {
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83 *pixel = row_pointers[y][x_offset];
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84 }
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85 }
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86 }
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87 }
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88
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89 /**
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90 * Reads the heightmap and/or size of the heightmap from a PNG file.
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91 * If map == NULL only the size of the PNG is read, otherwise a map
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92 * with grayscale pixels is allocated and assigned to *map.
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93 */
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94 static bool ReadHeightmapPNG(char *filename, uint *x, uint *y, byte **map)
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95 {
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96 FILE *fp;
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97 png_structp png_ptr = NULL;
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98 png_infop info_ptr = NULL;
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99
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100 fp = fopen(filename, "rb");
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101 if (fp == NULL) {
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102 ShowErrorMessage(STR_PNGMAP_ERR_FILE_NOT_FOUND, STR_PNGMAP_ERROR, 0, 0);
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103 return false;
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104 }
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105
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106 png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
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107 if (png_ptr == NULL) {
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108 ShowErrorMessage(STR_PNGMAP_ERR_MISC, STR_PNGMAP_ERROR, 0, 0);
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109 fclose(fp);
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110 return false;
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111 }
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112
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113 info_ptr = png_create_info_struct(png_ptr);
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114 if (info_ptr == NULL || setjmp(png_jmpbuf(png_ptr))) {
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115 ShowErrorMessage(STR_PNGMAP_ERR_MISC, STR_PNGMAP_ERROR, 0, 0);
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116 fclose(fp);
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117 png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
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118 return false;
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119 }
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120
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121 png_init_io(png_ptr, fp);
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122
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123 /* Allocate memory and read image, without alpha or 16-bit samples
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124 * (result is either 8-bit indexed/grayscale or 24-bit RGB) */
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125 png_set_packing(png_ptr);
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126 png_read_png(png_ptr, info_ptr, PNG_TRANSFORM_PACKING | PNG_TRANSFORM_STRIP_ALPHA | PNG_TRANSFORM_STRIP_16, NULL);
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127
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128 /* Maps of wrong color-depth are not used.
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129 * (this should have been taken care of by stripping alpha and 16-bit samples on load) */
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130 if ((info_ptr->channels != 1) && (info_ptr->channels != 3) && (info_ptr->bit_depth != 8)) {
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131 ShowErrorMessage(STR_PNGMAP_ERR_IMAGE_TYPE, STR_PNGMAP_ERROR, 0, 0);
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132 fclose(fp);
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133 png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
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134 return false;
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135 }
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136
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137 if (map != NULL) {
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138 *map = malloc(info_ptr->width * info_ptr->height * sizeof(byte));
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139
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140 if (*map == NULL) {
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141 ShowErrorMessage(STR_PNGMAP_ERR_MISC, STR_PNGMAP_ERROR, 0, 0);
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142 fclose(fp);
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143 png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
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144 return false;
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145 }
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146
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147 ReadHeightmapPNGImageData(*map, png_ptr, info_ptr);
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148 }
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149
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150 *x = info_ptr->width;
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151 *y = info_ptr->height;
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152
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153 fclose(fp);
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154 png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
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155 return true;
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156 }
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157
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158 #endif /* WITH_PNG */
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159
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160
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161 /**
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162 * The BMP Heightmap loader.
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163 */
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164 static void ReadHeightmapBMPImageData(byte *map, BmpInfo *info, BmpData *data)
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165 {
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166 uint x, y;
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167 byte gray_palette[256];
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168
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169 if (data->palette != NULL) {
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170 uint i;
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171 bool all_gray = true;
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172
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173 if (info->palette_size != 2) {
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174 for (i = 0; i < info->palette_size && (info->palette_size != 16 || all_gray); i++) {
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175 all_gray &= data->palette[i].r == data->palette[i].g && data->palette[i].r == data->palette[i].b;
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176 gray_palette[i] = RGBToGrayscale(data->palette[i].r, data->palette[i].g, data->palette[i].b);
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177 }
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178
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179 /**
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180 * For a non-gray palette of size 16 we assume that
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181 * the order of the palette determines the height;
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182 * the first entry is the sea (level 0), the second one
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183 * level 1, etc.
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184 */
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185 if (info->palette_size == 16 && !all_gray) {
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186 for (i = 0; i < info->palette_size; i++) {
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187 gray_palette[i] = 256 * i / info->palette_size;
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188 }
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189 }
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190 } else {
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191 /**
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192 * For a palette of size 2 we assume that the order of the palette determines the height;
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193 * the first entry is the sea (level 0), the second one is the land (level 1)
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194 */
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195 gray_palette[0] = 0;
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196 gray_palette[1] = 16;
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197 }
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198 }
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199
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200 /* Read the raw image data and convert in 8-bit grayscale */
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201 for (y = 0; y < info->height; y++) {
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diff changeset
202 byte *pixel = &map[y * info->width];
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203 byte *bitmap = &data->bitmap[y * info->width * (info->bpp == 24 ? 3 : 1)];
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204
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205 for (x = 0; x < info->width; x++) {
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diff changeset
206 if (info->bpp != 24) {
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diff changeset
207 *pixel++ = gray_palette[*bitmap++];
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208 } else {
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209 *pixel++ = RGBToGrayscale(*bitmap, *(bitmap + 1), *(bitmap + 2));
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210 bitmap += 3;
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211 }
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diff changeset
212 }
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213 }
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parents:
diff changeset
214 }
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KUDr <KUDr@openttd.org>
parents:
diff changeset
215
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
216 /**
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parents:
diff changeset
217 * Reads the heightmap and/or size of the heightmap from a BMP file.
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
218 * If map == NULL only the size of the BMP is read, otherwise a map
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parents:
diff changeset
219 * with grayscale pixels is allocated and assigned to *map.
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parents:
diff changeset
220 */
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parents:
diff changeset
221 static bool ReadHeightmapBMP(char *filename, uint *x, uint *y, byte **map)
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parents:
diff changeset
222 {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
223 FILE *f;
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parents:
diff changeset
224 BmpInfo info;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
225 BmpData data;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
226 BmpBuffer buffer;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
227
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parents:
diff changeset
228 f = fopen(filename, "rb");
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parents:
diff changeset
229 if (f == NULL) {
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parents:
diff changeset
230 ShowErrorMessage(STR_PNGMAP_ERR_FILE_NOT_FOUND, STR_BMPMAP_ERROR, 0, 0);
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parents:
diff changeset
231 return false;
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parents:
diff changeset
232 }
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parents:
diff changeset
233
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parents:
diff changeset
234 BmpInitializeBuffer(&buffer, f);
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diff changeset
235
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diff changeset
236 if (!BmpReadHeader(&buffer, &info, &data)) {
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diff changeset
237 ShowErrorMessage(STR_BMPMAP_ERR_IMAGE_TYPE, STR_BMPMAP_ERROR, 0, 0);
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diff changeset
238 fclose(f);
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diff changeset
239 BmpDestroyData(&data);
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diff changeset
240 return false;
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diff changeset
241 }
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diff changeset
242
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diff changeset
243 if (map != NULL) {
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diff changeset
244 if (!BmpReadBitmap(&buffer, &info, &data)) {
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diff changeset
245 ShowErrorMessage(STR_BMPMAP_ERR_IMAGE_TYPE, STR_BMPMAP_ERROR, 0, 0);
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diff changeset
246 fclose(f);
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diff changeset
247 BmpDestroyData(&data);
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diff changeset
248 return false;
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diff changeset
249 }
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diff changeset
250
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diff changeset
251 *map = malloc(info.width * info.height * sizeof(byte));
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diff changeset
252 if (*map == NULL) {
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diff changeset
253 ShowErrorMessage(STR_PNGMAP_ERR_MISC, STR_BMPMAP_ERROR, 0, 0);
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diff changeset
254 fclose(f);
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diff changeset
255 BmpDestroyData(&data);
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diff changeset
256 return false;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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diff changeset
257 }
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parents:
diff changeset
258
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diff changeset
259 ReadHeightmapBMPImageData(*map, &info, &data);
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parents:
diff changeset
260
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
261 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
262
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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diff changeset
263 BmpDestroyData(&data);
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
264
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parents:
diff changeset
265 *x = info.width;
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diff changeset
266 *y = info.height;
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parents:
diff changeset
267
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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diff changeset
268 fclose(f);
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diff changeset
269 return true;
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parents:
diff changeset
270 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
271
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diff changeset
272 static void GrayscaleToMapHeights(uint img_width, uint img_height, byte *map)
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diff changeset
273 {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
274 /* Defines the detail of the aspect ratio (to avoid doubles) */
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diff changeset
275 const uint num_div = 16384;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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diff changeset
276
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
277 uint width, height;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
278 uint row, col;
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parents:
diff changeset
279 uint row_pad = 0, col_pad = 0;
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parents:
diff changeset
280 uint img_scale;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
281 uint img_row, img_col;
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parents:
diff changeset
282 TileIndex tile;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
283
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
284 /* Get map size and calculate scale and padding values */
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parents:
diff changeset
285 switch (_patches.heightmap_rotation) {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
286 case HM_COUNTER_CLOCKWISE:
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
287 width = MapSizeX();
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
288 height = MapSizeY();
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
289 break;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
290 case HM_CLOCKWISE:
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
291 width = MapSizeY();
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
292 height = MapSizeX();
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
293 break;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
294 default:
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
295 NOT_REACHED();
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
296 /* Avoids compiler warnings */
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
297 return;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
298 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
299
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
300 if ((img_width * num_div) / img_height > ((width * num_div) / height)) {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
301 /* Image is wider than map - center vertically */
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
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parents:
diff changeset
302 img_scale = (width * num_div) / img_width;
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KUDr <KUDr@openttd.org>
parents:
diff changeset
303 row_pad = (height - ((img_height * img_scale) / num_div)) / 2;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
304 } else {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
305 /* Image is taller than map - center horizontally */
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
306 img_scale = (height * num_div) / img_height;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
307 col_pad = (width - ((img_width * img_scale) / num_div)) / 2;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
308 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
309
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
310 /* Form the landscape */
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
311 for (row = 0; row < height - 1; row++) {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
312 for (col = 0; col < width - 1; col++) {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
313 switch (_patches.heightmap_rotation) {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
314 case HM_COUNTER_CLOCKWISE: tile = TileXY(col, row); break;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
315 case HM_CLOCKWISE: tile = TileXY(row, col); break;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
316 default: NOT_REACHED(); return;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
317 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
318
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
319 /* Check if current tile is within the 1-pixel map edge or padding regions */
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
320 if ((DistanceFromEdge(tile) <= 1) ||
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
321 (row < row_pad) || (row >= (img_height + row_pad)) ||
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
322 (col < col_pad) || (col >= (img_width + col_pad))) {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
323 SetTileHeight(tile, 0);
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
324 } else {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
325 /* Use nearest neighbor resizing to scale map data.
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
326 * We rotate the map 45 degrees (counter)clockwise */
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
327 img_row = (((row - row_pad) * num_div) / img_scale);
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
328 switch (_patches.heightmap_rotation) {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
329 case HM_COUNTER_CLOCKWISE:
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
330 img_col = (((width - 1 - col - col_pad) * num_div) / img_scale);
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
331 break;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
332 case HM_CLOCKWISE:
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
333 img_col = (((col - col_pad) * num_div) / img_scale);
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
334 break;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
335 default:
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
336 NOT_REACHED();
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
337 /* Avoids compiler warnings */
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
338 return;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
339 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
340
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
341 assert(img_row < img_height);
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
342 assert(img_col < img_width);
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
343
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
344 /* Color scales from 0 to 255, OpenTTD height scales from 0 to 15 */
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
345 SetTileHeight(tile, map[img_row * img_width + img_col] / 16);
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
346 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
347 MakeClear(tile, CLEAR_GRASS, 3);
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
348 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
349 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
350 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
351
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
352 /**
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
353 * This function takes care of the fact that land in OpenTTD can never differ
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
354 * more than 1 in height
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
355 */
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
356 static void FixSlopes(void)
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
357 {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
358 uint width, height;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
359 uint row, col;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
360 byte current_tile;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
361
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
362 /* Adjust height difference to maximum one horizontal/vertical change. */
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
363 width = MapSizeX();
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
364 height = MapSizeY();
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
365
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
366 /* Top and left edge */
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
367 for (row = 1; row < height - 2; row++) {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
368 for (col = 1; col < width - 2; col++) {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
369 /* Find lowest tile; either the top or left one */
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
370 current_tile = TileHeight(TileXY(col - 1, row)); // top edge
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
371 if (TileHeight(TileXY(col, row - 1)) < current_tile) {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
372 current_tile = TileHeight(TileXY(col, row - 1)); // left edge
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
373 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
374
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
375 /* Does the height differ more than one? */
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
376 if (TileHeight(TileXY(col, row)) >= (uint)current_tile + 2) {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
377 /* Then change the height to be no more than one */
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
378 SetTileHeight(TileXY(col, row), current_tile + 1);
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
379 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
380 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
381 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
382
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
383 /* Bottom and right edge */
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
384 for (row = height - 2; row > 0; row--) {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
385 for (col = width - 2; col > 0; col--) {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
386 /* Find lowest tile; either the bottom and right one */
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
387 current_tile = TileHeight(TileXY(col + 1, row)); // bottom edge
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
388 if (TileHeight(TileXY(col, row + 1)) < current_tile) {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
389 current_tile = TileHeight(TileXY(col, row + 1)); // right edge
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
390 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
391
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
392 /* Does the height differ more than one? */
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
393 if (TileHeight(TileXY(col, row)) >= (uint)current_tile + 2) {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
394 /* Then change the height to be no more than one */
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
395 SetTileHeight(TileXY(col, row), current_tile + 1);
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
396 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
397 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
398 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
399 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
400
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
401 /**
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
402 * Reads the heightmap with the correct file reader
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
403 */
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
404 static bool ReadHeightMap(char *filename, uint *x, uint *y, byte **map)
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
405 {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
406 switch (_file_to_saveload.mode) {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
407 #ifdef WITH_PNG
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
408 case SL_PNG:
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
409 return ReadHeightmapPNG(filename, x, y, map);
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
410 #endif /* WITH_PNG */
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
411 case SL_BMP:
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
412 return ReadHeightmapBMP(filename, x, y, map);
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
413
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
414 default:
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
415 NOT_REACHED();
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
416 /* Avoids compiler warnings */
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
417 return false;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
418 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
419 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
420
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
421 bool GetHeightmapDimensions(char *filename, uint *x, uint *y)
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
422 {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
423 return ReadHeightMap(filename, x, y, NULL);
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
424 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
425
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
426 void LoadHeightmap(char *filename)
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
427 {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
428 uint x, y;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
429 byte *map = NULL;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
430
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
431 if (!ReadHeightMap(filename, &x, &y, &map)) {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
432 free(map);
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
433 return;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
434 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
435
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
436 GrayscaleToMapHeights(x, y, map);
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
437 free(map);
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
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438
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
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439 FixSlopes();
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
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440 MarkWholeScreenDirty();
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
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441 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
442
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
443 void FlatEmptyWorld(byte tile_height)
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
444 {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
445 uint width, height;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
446 uint row, col;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
447
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
448 width = MapSizeX();
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
449 height = MapSizeY();
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
450
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
451 for (row = 2; row < height - 2; row++) {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
452 for (col = 2; col < width - 2; col++) {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
453 SetTileHeight(TileXY(col, row), tile_height);
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
454 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
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455 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
456
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
457 FixSlopes();
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
458 MarkWholeScreenDirty();
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
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459 }