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annotate src/genworld.cpp @ 8434:1b2d9c0995f9 draft

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(svn r12004) -Codechange: refactor the random functions to reduce code duplication.
author rubidium <rubidium@openttd.org>
date Tue, 29 Jan 2008 00:27:25 +0000
parents ccf4087c045f
children e2d4956b7251
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rev   line source
5584
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1 /* $Id$ */
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2
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3 /** @file genworld.cpp */
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4
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5 #include "stdafx.h"
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6 #include "openttd.h"
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7 #include "landscape.h"
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8 #include "player_func.h"
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9 #include "variables.h"
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10 #include "thread.h"
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11 #include "command_func.h"
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12 #include "genworld.h"
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13 #include "gfxinit.h"
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14 #include "window_func.h"
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15 #include "network/network.h"
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16 #include "debug.h"
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17 #include "settings_func.h"
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18 #include "heightmap.h"
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19 #include "viewport_func.h"
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20 #include "gfx_func.h"
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21 #include "map_func.h"
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22 #include "date_func.h"
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23 #include "core/random_func.hpp"
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24 #include "engine.h"
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25 #include "settings_type.h"
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26 #include "newgrf_storage.h"
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27 #include "water.h"
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28
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29 #include "table/sprites.h"
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30
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31 void GenerateClearTile();
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32 void GenerateIndustries();
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33 void GenerateUnmovables();
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34 bool GenerateTowns();
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35 void GenerateTrees();
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36
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37 void StartupEconomy();
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38 void StartupPlayers();
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39 void StartupDisasters();
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41 void InitializeGame(int mode, uint size_x, uint size_y);
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42
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43 /* Please only use this variable in genworld.h and genworld.c and
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44 * nowhere else. For speed improvements we need it to be global, but
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45 * in no way the meaning of it is to use it anywhere else besides
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46 * in the genworld.h and genworld.c! -- TrueLight */
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47 gw_info _gw;
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48
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49 /**
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50 * Set the status of the Paint flag.
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51 * If it is true, the thread will hold with any futher generating till
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52 * the drawing of the screen is done. This is handled by
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53 * SetGeneratingWorldProgress(), so calling that function will stall
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54 * from time to time.
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55 */
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56 void SetGeneratingWorldPaintStatus(bool status)
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57 {
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58 _gw.wait_for_draw = status;
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59 }
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60
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61 /**
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62 * Returns true if the thread wants the main program to do a (full) paint.
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63 * If this returns false, please do not update the screen. Because we are
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64 * writing in a thread, it can cause damaged data (reading and writing the
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65 * same tile at the same time).
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66 */
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67 bool IsGeneratingWorldReadyForPaint()
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68 {
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69 /* If we are in quit_thread mode, ignore this and always return false. This
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70 * forces the screen to not be drawn, and the GUI not to wait for a draw. */
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71 if (!_gw.active || _gw.quit_thread || !_gw.threaded) return false;
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72
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73 return _gw.wait_for_draw;
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74 }
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75
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76 /**
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77 * Tells if the world generation is done in a thread or not.
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78 */
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79 bool IsGenerateWorldThreaded()
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80 {
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81 return _gw.threaded && !_gw.quit_thread;
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82 }
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83
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84 /**
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85 * The internal, real, generate function.
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86 */
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87 static void *_GenerateWorld(void *arg)
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88 {
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89 _generating_world = true;
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90 if (_network_dedicated) DEBUG(net, 0, "Generating map, please wait...");
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91 /* Set the Random() seed to generation_seed so we produce the same map with the same seed */
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92 if (_patches.generation_seed == GENERATE_NEW_SEED) _patches.generation_seed = _patches_newgame.generation_seed = InteractiveRandom();
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93 _random.SetSeed(_patches.generation_seed);
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94 SetGeneratingWorldProgress(GWP_MAP_INIT, 2);
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95 SetObjectToPlace(SPR_CURSOR_ZZZ, PAL_NONE, VHM_NONE, WC_MAIN_WINDOW, 0);
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96
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97 IncreaseGeneratingWorldProgress(GWP_MAP_INIT);
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98 /* Must start economy early because of the costs. */
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99 StartupEconomy();
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100
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101 /* Don't generate landscape items when in the scenario editor. */
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102 if (_gw.mode == GW_EMPTY) {
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103 SetGeneratingWorldProgress(GWP_UNMOVABLE, 1);
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104
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105 /* Make the map the height of the patch setting */
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106 if (_game_mode != GM_MENU) FlatEmptyWorld(_patches.se_flat_world_height);
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107
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108 ConvertGroundTilesIntoWaterTiles();
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KUDr <KUDr@openttd.org>
parents:
diff changeset
109 IncreaseGeneratingWorldProgress(GWP_UNMOVABLE);
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KUDr <KUDr@openttd.org>
parents:
diff changeset
110 } else {
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KUDr <KUDr@openttd.org>
parents:
diff changeset
111 GenerateLandscape(_gw.mode);
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KUDr <KUDr@openttd.org>
parents:
diff changeset
112 GenerateClearTile();
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KUDr <KUDr@openttd.org>
parents:
diff changeset
113
6179
e3e61b92574b (svn r8950) -Cleanup: doxygen changes. Mostly @files missing tags and a few comments style.
belugas <belugas@openttd.org>
parents: 5893
diff changeset
114 /* only generate towns, tree and industries in newgame mode. */
5584
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KUDr <KUDr@openttd.org>
parents:
diff changeset
115 if (_game_mode != GM_EDITOR) {
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KUDr <KUDr@openttd.org>
parents:
diff changeset
116 GenerateTowns();
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KUDr <KUDr@openttd.org>
parents:
diff changeset
117 GenerateIndustries();
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KUDr <KUDr@openttd.org>
parents:
diff changeset
118 GenerateUnmovables();
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KUDr <KUDr@openttd.org>
parents:
diff changeset
119 GenerateTrees();
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KUDr <KUDr@openttd.org>
parents:
diff changeset
120 }
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KUDr <KUDr@openttd.org>
parents:
diff changeset
121 }
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KUDr <KUDr@openttd.org>
parents:
diff changeset
122
8303
0ab35f1b5949 (svn r11867) -Fix: do not reset changes to persistent storages during world generation.
rubidium <rubidium@openttd.org>
parents: 8270
diff changeset
123 ClearStorageChanges(true);
0ab35f1b5949 (svn r11867) -Fix: do not reset changes to persistent storages during world generation.
rubidium <rubidium@openttd.org>
parents: 8270
diff changeset
124
6179
e3e61b92574b (svn r8950) -Cleanup: doxygen changes. Mostly @files missing tags and a few comments style.
belugas <belugas@openttd.org>
parents: 5893
diff changeset
125 /* These are probably pointless when inside the scenario editor. */
5584
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126 SetGeneratingWorldProgress(GWP_GAME_INIT, 3);
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KUDr <KUDr@openttd.org>
parents:
diff changeset
127 StartupPlayers();
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KUDr <KUDr@openttd.org>
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128 IncreaseGeneratingWorldProgress(GWP_GAME_INIT);
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KUDr <KUDr@openttd.org>
parents:
diff changeset
129 StartupEngines();
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KUDr <KUDr@openttd.org>
parents:
diff changeset
130 IncreaseGeneratingWorldProgress(GWP_GAME_INIT);
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KUDr <KUDr@openttd.org>
parents:
diff changeset
131 StartupDisasters();
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KUDr <KUDr@openttd.org>
parents:
diff changeset
132 _generating_world = false;
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KUDr <KUDr@openttd.org>
parents:
diff changeset
133
6179
e3e61b92574b (svn r8950) -Cleanup: doxygen changes. Mostly @files missing tags and a few comments style.
belugas <belugas@openttd.org>
parents: 5893
diff changeset
134 /* No need to run the tile loop in the scenario editor. */
5584
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KUDr <KUDr@openttd.org>
parents:
diff changeset
135 if (_gw.mode != GW_EMPTY) {
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KUDr <KUDr@openttd.org>
parents:
diff changeset
136 uint i;
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KUDr <KUDr@openttd.org>
parents:
diff changeset
137
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KUDr <KUDr@openttd.org>
parents:
diff changeset
138 SetGeneratingWorldProgress(GWP_RUNTILELOOP, 0x500);
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KUDr <KUDr@openttd.org>
parents:
diff changeset
139 for (i = 0; i < 0x500; i++) {
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KUDr <KUDr@openttd.org>
parents:
diff changeset
140 RunTileLoop();
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KUDr <KUDr@openttd.org>
parents:
diff changeset
141 IncreaseGeneratingWorldProgress(GWP_RUNTILELOOP);
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KUDr <KUDr@openttd.org>
parents:
diff changeset
142 }
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KUDr <KUDr@openttd.org>
parents:
diff changeset
143 }
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KUDr <KUDr@openttd.org>
parents:
diff changeset
144
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KUDr <KUDr@openttd.org>
parents:
diff changeset
145 ResetObjectToPlace();
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KUDr <KUDr@openttd.org>
parents:
diff changeset
146 SetLocalPlayer(_gw.lp);
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KUDr <KUDr@openttd.org>
parents:
diff changeset
147
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KUDr <KUDr@openttd.org>
parents:
diff changeset
148 SetGeneratingWorldProgress(GWP_GAME_START, 1);
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KUDr <KUDr@openttd.org>
parents:
diff changeset
149 /* Call any callback */
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KUDr <KUDr@openttd.org>
parents:
diff changeset
150 if (_gw.proc != NULL) _gw.proc();
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KUDr <KUDr@openttd.org>
parents:
diff changeset
151 IncreaseGeneratingWorldProgress(GWP_GAME_START);
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KUDr <KUDr@openttd.org>
parents:
diff changeset
152
5668
3d6d9bff3dd8 (svn r8128) -Codechange: Split sprite and palette remap into separate 32 bit values.
peter1138 <peter1138@openttd.org>
parents: 5587
diff changeset
153 if (_cursor.sprite == SPR_CURSOR_ZZZ) SetMouseCursor(SPR_CURSOR_MOUSE, PAL_NONE);
5584
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KUDr <KUDr@openttd.org>
parents:
diff changeset
154 /* Show all vital windows again, because we have hidden them */
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KUDr <KUDr@openttd.org>
parents:
diff changeset
155 if (_gw.threaded && _game_mode != GM_MENU) ShowVitalWindows();
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KUDr <KUDr@openttd.org>
parents:
diff changeset
156 _gw.active = false;
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KUDr <KUDr@openttd.org>
parents:
diff changeset
157 _gw.thread = NULL;
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KUDr <KUDr@openttd.org>
parents:
diff changeset
158 _gw.proc = NULL;
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KUDr <KUDr@openttd.org>
parents:
diff changeset
159 _gw.threaded = false;
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KUDr <KUDr@openttd.org>
parents:
diff changeset
160
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KUDr <KUDr@openttd.org>
parents:
diff changeset
161 DeleteWindowById(WC_GENERATE_PROGRESS_WINDOW, 0);
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KUDr <KUDr@openttd.org>
parents:
diff changeset
162 MarkWholeScreenDirty();
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KUDr <KUDr@openttd.org>
parents:
diff changeset
163
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KUDr <KUDr@openttd.org>
parents:
diff changeset
164 if (_network_dedicated) DEBUG(net, 0, "Map generated, starting game");
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KUDr <KUDr@openttd.org>
parents:
diff changeset
165
6578
f71c81ca38cd (svn r9792) -Fix (r9734): Pause on newgame should only apply to games, not the scenario editor.
maedhros <maedhros@openttd.org>
parents: 6543
diff changeset
166 if (_patches.pause_on_newgame && _game_mode == GM_NORMAL) DoCommandP(0, 1, 0, NULL, CMD_PAUSE);
6543
f9fc925aafad (svn r9734) -Feature: Add an option to automatically pause when starting a new game.
maedhros <maedhros@openttd.org>
parents: 6453
diff changeset
167
5584
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KUDr <KUDr@openttd.org>
parents:
diff changeset
168 return NULL;
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KUDr <KUDr@openttd.org>
parents:
diff changeset
169 }
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KUDr <KUDr@openttd.org>
parents:
diff changeset
170
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KUDr <KUDr@openttd.org>
parents:
diff changeset
171 /**
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KUDr <KUDr@openttd.org>
parents:
diff changeset
172 * Set here the function, if any, that you want to be called when landscape
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KUDr <KUDr@openttd.org>
parents:
diff changeset
173 * generation is done.
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KUDr <KUDr@openttd.org>
parents:
diff changeset
174 */
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KUDr <KUDr@openttd.org>
parents:
diff changeset
175 void GenerateWorldSetCallback(gw_done_proc *proc)
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KUDr <KUDr@openttd.org>
parents:
diff changeset
176 {
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KUDr <KUDr@openttd.org>
parents:
diff changeset
177 _gw.proc = proc;
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KUDr <KUDr@openttd.org>
parents:
diff changeset
178 }
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KUDr <KUDr@openttd.org>
parents:
diff changeset
179
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KUDr <KUDr@openttd.org>
parents:
diff changeset
180 /**
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
181 * Set here the function, if any, that you want to be called when landscape
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KUDr <KUDr@openttd.org>
parents:
diff changeset
182 * generation is aborted.
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KUDr <KUDr@openttd.org>
parents:
diff changeset
183 */
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KUDr <KUDr@openttd.org>
parents:
diff changeset
184 void GenerateWorldSetAbortCallback(gw_abort_proc *proc)
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KUDr <KUDr@openttd.org>
parents:
diff changeset
185 {
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KUDr <KUDr@openttd.org>
parents:
diff changeset
186 _gw.abortp = proc;
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KUDr <KUDr@openttd.org>
parents:
diff changeset
187 }
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KUDr <KUDr@openttd.org>
parents:
diff changeset
188
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KUDr <KUDr@openttd.org>
parents:
diff changeset
189 /**
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
190 * This will wait for the thread to finish up his work. It will not continue
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KUDr <KUDr@openttd.org>
parents:
diff changeset
191 * till the work is done.
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KUDr <KUDr@openttd.org>
parents:
diff changeset
192 */
6247
57363e064324 (svn r9050) -Codechange: Foo(void) -> Foo()
rubidium <rubidium@openttd.org>
parents: 6179
diff changeset
193 void WaitTillGeneratedWorld()
5584
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KUDr <KUDr@openttd.org>
parents:
diff changeset
194 {
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KUDr <KUDr@openttd.org>
parents:
diff changeset
195 if (_gw.thread == NULL) return;
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KUDr <KUDr@openttd.org>
parents:
diff changeset
196 _gw.quit_thread = true;
5587
c44c070c5032 (svn r8038) -Merge: the cpp branch. Effort of KUDr, Celestar, glx, Smoovius, stillunknown and pv2b.
rubidium <rubidium@openttd.org>
parents: 5584
diff changeset
197 OTTDJoinThread((OTTDThread*)_gw.thread);
5584
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KUDr <KUDr@openttd.org>
parents:
diff changeset
198 _gw.thread = NULL;
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KUDr <KUDr@openttd.org>
parents:
diff changeset
199 _gw.threaded = false;
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KUDr <KUDr@openttd.org>
parents:
diff changeset
200 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
201
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
202 /**
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
203 * Initializes the abortion process
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KUDr <KUDr@openttd.org>
parents:
diff changeset
204 */
6247
57363e064324 (svn r9050) -Codechange: Foo(void) -> Foo()
rubidium <rubidium@openttd.org>
parents: 6179
diff changeset
205 void AbortGeneratingWorld()
5584
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
206 {
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
207 _gw.abort = true;
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KUDr <KUDr@openttd.org>
parents:
diff changeset
208 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
209
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
210 /**
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
211 * Is the generation being aborted?
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KUDr <KUDr@openttd.org>
parents:
diff changeset
212 */
6247
57363e064324 (svn r9050) -Codechange: Foo(void) -> Foo()
rubidium <rubidium@openttd.org>
parents: 6179
diff changeset
213 bool IsGeneratingWorldAborted()
5584
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KUDr <KUDr@openttd.org>
parents:
diff changeset
214 {
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KUDr <KUDr@openttd.org>
parents:
diff changeset
215 return _gw.abort;
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
216 }
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
217
4b26bd55bd24 (svn r8033) [cpp] - Prepare for merge from branches/cpp (all .c files renamed to .cpp)
KUDr <KUDr@openttd.org>
parents:
diff changeset
218 /**
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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219 * Really handle the abortion, i.e. clean up some of the mess
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220 */
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57363e064324 (svn r9050) -Codechange: Foo(void) -> Foo()
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221 void HandleGeneratingWorldAbortion()
5584
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222 {
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223 /* Clean up - in SE create an empty map, otherwise, go to intro menu */
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224 _switch_mode = (_game_mode == GM_EDITOR) ? SM_EDITOR : SM_MENU;
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225
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226 if (_gw.abortp != NULL) _gw.abortp();
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227
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3d6d9bff3dd8 (svn r8128) -Codechange: Split sprite and palette remap into separate 32 bit values.
peter1138 <peter1138@openttd.org>
parents: 5587
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228 if (_cursor.sprite == SPR_CURSOR_ZZZ) SetMouseCursor(SPR_CURSOR_MOUSE, PAL_NONE);
5584
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229 /* Show all vital windows again, because we have hidden them */
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230 if (_gw.threaded && _game_mode != GM_MENU) ShowVitalWindows();
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231 _gw.active = false;
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232 _gw.thread = NULL;
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233 _gw.proc = NULL;
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234 _gw.abortp = NULL;
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235 _gw.threaded = false;
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236
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237 DeleteWindowById(WC_GENERATE_PROGRESS_WINDOW, 0);
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238 MarkWholeScreenDirty();
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239
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240 OTTDExitThread();
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241 }
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242
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243 /**
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244 * Generate a world.
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e3e61b92574b (svn r8950) -Cleanup: doxygen changes. Mostly @files missing tags and a few comments style.
belugas <belugas@openttd.org>
parents: 5893
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245 * @param mode The mode of world generation (see GenerateWorldModes).
5584
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246 * @param size_x The X-size of the map.
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247 * @param size_y The Y-size of the map.
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248 */
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249 void GenerateWorld(int mode, uint size_x, uint size_y)
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250 {
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251 if (_gw.active) return;
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252 _gw.mode = mode;
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253 _gw.size_x = size_x;
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254 _gw.size_y = size_y;
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255 _gw.active = true;
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256 _gw.abort = false;
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257 _gw.abortp = NULL;
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258 _gw.lp = _local_player;
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259 _gw.wait_for_draw = false;
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260 _gw.quit_thread = false;
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261 _gw.threaded = true;
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262
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263 /* This disables some commands and stuff */
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264 SetLocalPlayer(PLAYER_SPECTATOR);
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265 /* Make sure everything is done via OWNER_NONE */
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266 _current_player = OWNER_NONE;
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267
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268 /* Set the date before loading sprites as some newgrfs check it */
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269 SetDate(ConvertYMDToDate(_patches.starting_year, 0, 1));
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270
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271 /* Load the right landscape stuff */
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272 GfxLoadSprites();
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273 LoadStringWidthTable();
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274
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275 InitializeGame(IG_NONE, _gw.size_x, _gw.size_y);
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276 PrepareGenerateWorldProgress();
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277
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278 /* Re-init the windowing system */
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279 ResetWindowSystem();
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280
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281 /* Create toolbars */
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282 SetupColorsAndInitialWindow();
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283
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284 if (_network_dedicated ||
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285 (_gw.thread = OTTDCreateThread(&_GenerateWorld, NULL)) == NULL) {
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286 DEBUG(misc, 1, "Cannot create genworld thread, reverting to single-threaded mode");
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287 _gw.threaded = false;
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288 _GenerateWorld(NULL);
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289 return;
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290 }
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291
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292 /* Remove any open window */
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293 DeleteAllNonVitalWindows();
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294 /* Hide vital windows, because we don't allow to use them */
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295 HideVitalWindows();
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296
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297 /* Don't show the dialog if we don't have a thread */
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298 ShowGenerateWorldProgress();
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299
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300 /* Centre the view on the map */
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301 if (FindWindowById(WC_MAIN_WINDOW, 0) != NULL) {
6760
90fd4a119369 (svn r9995) -Fix (r9962): Don't scroll the map at the start of a new game
peter1138 <peter1138@openttd.org>
parents: 6578
diff changeset
302 ScrollMainWindowToTile(TileXY(MapSizeX() / 2, MapSizeY() / 2), true);
5584
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303 }
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304 }