22 #include "unmovable_map.h" |
22 #include "unmovable_map.h" |
23 #include "genworld.h" |
23 #include "genworld.h" |
24 #include "industry.h" |
24 #include "industry.h" |
25 #include "water_map.h" |
25 #include "water_map.h" |
26 |
26 |
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27 /* |
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28 * 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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29 * The maximal amount of height modifications is archieved when raising a complete flat land from sea level to MAX_TILE_HEIGHT or vice versa. |
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30 * This affects all corners with a manhatten distance smaller than MAX_TILE_HEIGHT to one of the initial 4 corners. |
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31 * Their maximal amount is computed to 4 * \sum_{i=1}^{h_max} i = 2 * h_max * (h_max + 1). |
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32 */ |
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33 static const int TERRAFORMER_MODHEIGHT_SIZE = 2 * MAX_TILE_HEIGHT * (MAX_TILE_HEIGHT + 1); |
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34 |
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35 /* |
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36 * The maximal amount of affected tiles (i.e. the tiles that incident with one of the corners above, is computed similiar to |
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37 * 1 + 4 * \sum_{i=1}^{h_max} (i+1) = 1 + 2 * h_max + (h_max + 3). |
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38 */ |
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39 static const int TERRAFORMER_TILE_TABLE_SIZE = 1 + 2 * MAX_TILE_HEIGHT * (MAX_TILE_HEIGHT + 3); |
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40 |
27 struct TerraformerHeightMod { |
41 struct TerraformerHeightMod { |
28 TileIndex tile; |
42 TileIndex tile; ///< Referenced tile. |
29 byte height; |
43 byte height; ///< New TileHeight (height of north corner) of the tile. |
30 }; |
44 }; |
31 |
45 |
32 struct TerraformerState { |
46 struct TerraformerState { |
33 int height[4]; |
47 int modheight_count; ///< amount of entries in "modheight". |
34 uint32 flags; |
48 int tile_table_count; ///< amount of entries in "tile_table". |
35 |
49 |
36 int direction; |
50 TileIndex tile_table[TERRAFORMER_TILE_TABLE_SIZE]; ///< Dirty tiles, i.e. at least one corner changed. |
37 int modheight_count; |
51 TerraformerHeightMod modheight[TERRAFORMER_MODHEIGHT_SIZE]; ///< Height modifications. |
38 int tile_table_count; |
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39 |
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40 CommandCost cost; |
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41 |
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42 TileIndex *tile_table; |
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43 TerraformerHeightMod *modheight; |
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44 |
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45 }; |
52 }; |
46 |
53 |
47 static int TerraformAllowTileProcess(TerraformerState *ts, TileIndex tile) |
54 /** |
48 { |
55 * Gets the TileHeight (height of north corner) of a tile as of current terraforming progress. |
49 TileIndex *t; |
56 * |
50 int count; |
57 * @param ts TerraformerState. |
51 |
58 * @param tile Tile. |
52 if (TileX(tile) == MapMaxX() || TileY(tile) == MapMaxY()) return -1; |
59 * @return TileHeight. |
53 |
60 */ |
54 t = ts->tile_table; |
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55 for (count = ts->tile_table_count; count != 0; count--, t++) { |
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56 if (*t == tile) return 0; |
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57 } |
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58 |
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59 return 1; |
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60 } |
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61 |
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62 static int TerraformGetHeightOfTile(TerraformerState *ts, TileIndex tile) |
61 static int TerraformGetHeightOfTile(TerraformerState *ts, TileIndex tile) |
63 { |
62 { |
64 TerraformerHeightMod *mod = ts->modheight; |
63 TerraformerHeightMod *mod = ts->modheight; |
65 int count; |
64 int count; |
66 |
65 |
67 for (count = ts->modheight_count; count != 0; count--, mod++) { |
66 for (count = ts->modheight_count; count != 0; count--, mod++) { |
68 if (mod->tile == tile) return mod->height; |
67 if (mod->tile == tile) return mod->height; |
69 } |
68 } |
70 |
69 |
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70 /* TileHeight unchanged so far, read value from map. */ |
71 return TileHeight(tile); |
71 return TileHeight(tile); |
72 } |
72 } |
73 |
73 |
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74 /** |
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75 * Stores the TileHeight (height of north corner) of a tile in a TerraformerState. |
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76 * |
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77 * @param ts TerraformerState. |
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78 * @param tile Tile. |
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79 * @param height New TileHeight. |
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80 */ |
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81 static void TerraformSetHeightOfTile(TerraformerState *ts, TileIndex tile, int height) |
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82 { |
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83 /* Find tile in the "modheight" table. |
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84 * Note: In a normal user-terraform command the tile will not be found in the "modheight" table. |
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85 * But during house- or industry-construction multiple corners can be terraformed at once. */ |
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86 TerraformerHeightMod *mod = ts->modheight; |
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87 int count = ts->modheight_count; |
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88 while ((count > 0) && (mod->tile != tile)) { |
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89 mod++; |
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90 count--; |
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91 } |
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92 |
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93 /* New entry? */ |
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94 if (count == 0) { |
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95 assert(ts->modheight_count < TERRAFORMER_MODHEIGHT_SIZE); |
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96 ts->modheight_count++; |
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97 } |
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98 |
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99 /* Finally store the new value */ |
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100 mod->tile = tile; |
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101 mod->height = (byte)height; |
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102 } |
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103 |
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104 /** |
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105 * Adds a tile to the "tile_table" in a TerraformerState. |
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106 * |
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107 * @param ts TerraformerState. |
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108 * @param tile Tile. |
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109 */ |
74 static void TerraformAddDirtyTile(TerraformerState *ts, TileIndex tile) |
110 static void TerraformAddDirtyTile(TerraformerState *ts, TileIndex tile) |
75 { |
111 { |
76 int count; |
112 int count; |
77 TileIndex *t; |
113 TileIndex *t; |
78 |
114 |
79 count = ts->tile_table_count; |
115 count = ts->tile_table_count; |
80 |
116 |
81 if (count >= 625) return; |
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82 |
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83 for (t = ts->tile_table; count != 0; count--, t++) { |
117 for (t = ts->tile_table; count != 0; count--, t++) { |
84 if (*t == tile) return; |
118 if (*t == tile) return; |
85 } |
119 } |
86 |
120 |
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121 assert(ts->tile_table_count < TERRAFORMER_TILE_TABLE_SIZE); |
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122 |
87 ts->tile_table[ts->tile_table_count++] = tile; |
123 ts->tile_table[ts->tile_table_count++] = tile; |
88 } |
124 } |
89 |
125 |
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126 /** |
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127 * Adds all tiles that incident with the north corner of a specific tile to the "tile_table" in a TerraformerState. |
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128 * |
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129 * @param ts TerraformerState. |
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130 * @param tile Tile. |
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131 */ |
90 static void TerraformAddDirtyTileAround(TerraformerState *ts, TileIndex tile) |
132 static void TerraformAddDirtyTileAround(TerraformerState *ts, TileIndex tile) |
91 { |
133 { |
92 TerraformAddDirtyTile(ts, tile + TileDiffXY( 0, -1)); |
134 TerraformAddDirtyTile(ts, tile + TileDiffXY( 0, -1)); |
93 TerraformAddDirtyTile(ts, tile + TileDiffXY(-1, -1)); |
135 TerraformAddDirtyTile(ts, tile + TileDiffXY(-1, -1)); |
94 TerraformAddDirtyTile(ts, tile + TileDiffXY(-1, 0)); |
136 TerraformAddDirtyTile(ts, tile + TileDiffXY(-1, 0)); |
95 TerraformAddDirtyTile(ts, tile); |
137 TerraformAddDirtyTile(ts, tile); |
96 } |
138 } |
97 |
139 |
98 static int TerraformProc(TerraformerState *ts, TileIndex tile, int mode) |
140 /** |
99 { |
141 * Terraform the north corner of a tile to a specific height. |
100 int r; |
142 * |
101 CommandCost ret; |
143 * @param ts TerraformerState. |
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144 * @param tile Tile. |
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145 * @param height Aimed height. |
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146 * @param return Error code or cost. |
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147 */ |
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148 static CommandCost TerraformTileHeight(TerraformerState *ts, TileIndex tile, int height) |
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149 { |
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150 CommandCost total_cost = CommandCost(); |
102 |
151 |
103 assert(tile < MapSize()); |
152 assert(tile < MapSize()); |
104 |
153 |
105 r = TerraformAllowTileProcess(ts, tile); |
154 /* Check range of destination height */ |
106 if (r <= 0) return r; |
155 if (height < 0) return_cmd_error(STR_1003_ALREADY_AT_SEA_LEVEL); |
107 |
156 if (height > MAX_TILE_HEIGHT) return_cmd_error(STR_1004_TOO_HIGH); |
108 if (IsTileType(tile, MP_RAILWAY)) { |
157 |
109 static const TrackBits safe_track[] = { TRACK_BIT_LOWER, TRACK_BIT_LEFT, TRACK_BIT_UPPER, TRACK_BIT_RIGHT }; |
158 /* |
110 static const Slope unsafe_slope[] = { SLOPE_S, SLOPE_W, SLOPE_N, SLOPE_E }; |
159 * Check if the terraforming has any effect. |
111 |
160 * This can only be true, if multiple corners of the start-tile are terraformed (i.e. the terraforming is done by towns/industries etc.). |
112 Slope tileh; |
161 * In this case the terraforming should fail. (Don't know why.) |
113 uint z; |
162 */ |
114 |
163 if (height == TerraformGetHeightOfTile(ts, tile)) return CMD_ERROR; |
115 /* Nothing could be built at the steep slope - this avoids a bug |
164 |
116 * when you have a single diagonal track in one corner on a |
165 /* Check "too close to edge of map" */ |
117 * basement and then you raise/lower the other corner. */ |
166 uint x = TileX(tile); |
118 tileh = GetTileSlope(tile, &z); |
167 uint y = TileY(tile); |
119 if (tileh == unsafe_slope[mode] || |
168 if ((x <= 1) || (y <= 1) || (x >= MapMaxX() - 1) || (y >= MapMaxY() - 1)) { |
120 tileh == (SLOPE_STEEP | ComplementSlope(unsafe_slope[mode]))) { |
169 /* |
121 _terraform_err_tile = tile; |
170 * Determine a sensible error tile |
122 _error_message = STR_1008_MUST_REMOVE_RAILROAD_TRACK; |
171 * Note: If x and y are both zero this will disable the error tile. (Tile 0 cannot be highlighted :( ) |
123 return -1; |
172 */ |
124 } |
173 if ((x == 1) && (y != 0)) x = 0; |
125 |
174 if ((y == 1) && (x != 0)) y = 0; |
126 /* If we have a single diagonal track there, the other side of |
175 _terraform_err_tile = TileXY(x, y); |
127 * tile can be terraformed. */ |
176 return_cmd_error(STR_0002_TOO_CLOSE_TO_EDGE_OF_MAP); |
128 if (IsPlainRailTile(tile) && GetTrackBits(tile) == safe_track[mode]) { |
177 } |
129 /* If terraforming downwards prevent damaging a potential tunnel below. |
178 |
130 * This check is only necessary for flat tiles, because if the tile is |
179 /* Mark incident tiles, that are involved in the terraforming */ |
131 * non-flat, then the corner opposing the rail is raised. Only this corner |
180 TerraformAddDirtyTileAround(ts, tile); |
132 * can be lowered and this is a safe action |
181 |
133 */ |
182 /* Store the height modification */ |
134 if (tileh == SLOPE_FLAT && |
183 TerraformSetHeightOfTile(ts, tile, height); |
135 ts->direction == -1 && |
184 |
136 IsTunnelInWay(tile, z - TILE_HEIGHT)) { |
185 /* Increment cost */ |
137 _terraform_err_tile = tile; |
186 total_cost.AddCost(_price.terraform); |
138 _error_message = STR_1002_EXCAVATION_WOULD_DAMAGE; |
187 |
139 return -1; |
188 /* Recurse to neighboured corners if height difference is larger than 1 */ |
140 } |
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141 return 0; |
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142 } |
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143 } |
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144 |
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145 /* Canals can't be terraformed */ |
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146 if (IsClearWaterTile(tile) && IsCanal(tile)) { |
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147 _terraform_err_tile = tile; |
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148 _error_message = STR_MUST_DEMOLISH_CANAL_FIRST; |
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149 return -1; |
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150 } |
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151 |
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152 ret = DoCommand(tile, 0, 0, ts->flags & ~DC_EXEC, CMD_LANDSCAPE_CLEAR); |
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153 |
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154 if (CmdFailed(ret)) { |
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155 _terraform_err_tile = tile; |
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156 return -1; |
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157 } |
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158 |
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159 ts->cost.AddCost(ret.GetCost()); |
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160 |
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161 if (ts->tile_table_count >= 625) return -1; |
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162 ts->tile_table[ts->tile_table_count++] = tile; |
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163 |
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164 return 0; |
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165 } |
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166 |
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167 static bool TerraformTileHeight(TerraformerState *ts, TileIndex tile, int height) |
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168 { |
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169 int nh; |
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170 TerraformerHeightMod *mod; |
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171 int count; |
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172 |
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173 assert(tile < MapSize()); |
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174 |
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175 if (height < 0) { |
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176 _error_message = STR_1003_ALREADY_AT_SEA_LEVEL; |
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177 return false; |
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178 } |
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179 |
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180 _error_message = STR_1004_TOO_HIGH; |
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181 |
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182 if (height > MAX_TILE_HEIGHT) return false; |
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183 |
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184 nh = TerraformGetHeightOfTile(ts, tile); |
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185 if (nh < 0 || height == nh) return false; |
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186 |
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187 if (TerraformProc(ts, tile, 0) < 0) return false; |
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188 if (TerraformProc(ts, tile + TileDiffXY( 0, -1), 1) < 0) return false; |
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189 if (TerraformProc(ts, tile + TileDiffXY(-1, -1), 2) < 0) return false; |
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190 if (TerraformProc(ts, tile + TileDiffXY(-1, 0), 3) < 0) return false; |
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191 |
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192 mod = ts->modheight; |
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193 count = ts->modheight_count; |
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194 |
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195 for (;;) { |
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196 if (count == 0) { |
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197 if (ts->modheight_count >= 576) return false; |
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198 ts->modheight_count++; |
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199 break; |
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200 } |
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201 if (mod->tile == tile) break; |
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202 mod++; |
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203 count--; |
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204 } |
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205 |
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206 mod->tile = tile; |
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207 mod->height = (byte)height; |
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208 |
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209 ts->cost.AddCost(_price.terraform); |
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210 |
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211 { |
189 { |
212 int direction = ts->direction, r; |
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213 const TileIndexDiffC *ttm; |
190 const TileIndexDiffC *ttm; |
214 |
191 |
215 static const TileIndexDiffC _terraform_tilepos[] = { |
192 static const TileIndexDiffC _terraform_tilepos[] = { |
216 { 1, 0}, |
193 { 1, 0}, // move to tile in SE |
217 {-2, 0}, |
194 {-2, 0}, // undo last move, and move to tile in NW |
218 { 1, 1}, |
195 { 1, 1}, // undo last move, and move to tile in SW |
219 { 0, -2} |
196 { 0, -2} // undo last move, and move to tile in NE |
220 }; |
197 }; |
221 |
198 |
222 for (ttm = _terraform_tilepos; ttm != endof(_terraform_tilepos); ttm++) { |
199 for (ttm = _terraform_tilepos; ttm != endof(_terraform_tilepos); ttm++) { |
223 tile += ToTileIndexDiff(*ttm); |
200 tile += ToTileIndexDiff(*ttm); |
224 |
201 |
225 r = TerraformGetHeightOfTile(ts, tile); |
202 /* Get TileHeight of neighboured tile as of current terraform progress */ |
226 if (r != height && r - direction != height && r + direction != height) { |
203 int r = TerraformGetHeightOfTile(ts, tile); |
227 if (!TerraformTileHeight(ts, tile, r + direction)) |
204 int height_diff = height - r; |
228 return false; |
205 |
229 } |
206 /* Is the height difference to the neighboured corner greater than 1? */ |
230 } |
207 if (abs(height_diff) > 1) { |
231 } |
208 /* Terraform the neighboured corner. The resulting height difference should be 1. */ |
232 |
209 height_diff += (height_diff < 0 ? 1 : -1); |
233 return true; |
210 CommandCost cost = TerraformTileHeight(ts, tile, r + height_diff); |
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211 if (CmdFailed(cost)) return cost; |
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212 total_cost.AddCost(cost); |
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213 } |
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214 } |
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215 } |
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216 |
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217 return total_cost; |
234 } |
218 } |
235 |
219 |
236 /** Terraform land |
220 /** Terraform land |
237 * @param tile tile to terraform |
221 * @param tile tile to terraform |
238 * @param flags for this command type |
222 * @param flags for this command type |
239 * @param p1 corners to terraform. |
223 * @param p1 corners to terraform (SLOPE_xxx) |
240 * @param p2 direction; eg up or down |
224 * @param p2 direction; eg up (non-zero) or down (zero) |
241 * @return error or cost of terraforming |
225 * @return error or cost of terraforming |
242 */ |
226 */ |
243 CommandCost CmdTerraformLand(TileIndex tile, uint32 flags, uint32 p1, uint32 p2) |
227 CommandCost CmdTerraformLand(TileIndex tile, uint32 flags, uint32 p1, uint32 p2) |
244 { |
228 { |
245 TerraformerState ts; |
229 TerraformerState ts; |
246 TileIndex t; |
230 CommandCost total_cost = CommandCost(); |
247 int direction; |
231 int direction = (p2 != 0 ? 1 : -1); |
248 |
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249 TerraformerHeightMod modheight_data[576]; |
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250 TileIndex tile_table_data[625]; |
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251 |
232 |
252 SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION); |
233 SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION); |
253 |
234 |
254 _terraform_err_tile = 0; |
235 _terraform_err_tile = 0; |
255 |
236 |
256 ts.direction = direction = p2 ? 1 : -1; |
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257 ts.flags = flags; |
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258 ts.modheight_count = ts.tile_table_count = 0; |
237 ts.modheight_count = ts.tile_table_count = 0; |
259 ts.cost = CommandCost(); |
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260 ts.modheight = modheight_data; |
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261 ts.tile_table = tile_table_data; |
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262 |
238 |
263 /* Make an extra check for map-bounds cause we add tiles to the originating tile */ |
239 /* Make an extra check for map-bounds cause we add tiles to the originating tile */ |
264 if (tile + TileDiffXY(1, 1) >= MapSize()) return CMD_ERROR; |
240 if (tile + TileDiffXY(1, 1) >= MapSize()) return CMD_ERROR; |
265 |
241 |
266 if (p1 & 1) { |
242 /* Compute the costs and the terraforming result in a model of the landscape */ |
267 t = tile + TileDiffXY(1, 0); |
243 if ((p1 & SLOPE_W) != 0) { |
268 if (!TerraformTileHeight(&ts, t, TileHeight(t) + direction)) { |
244 TileIndex t = tile + TileDiffXY(1, 0); |
269 return CMD_ERROR; |
245 CommandCost cost = TerraformTileHeight(&ts, t, TileHeight(t) + direction); |
270 } |
246 if (CmdFailed(cost)) return cost; |
271 } |
247 total_cost.AddCost(cost); |
272 |
248 } |
273 if (p1 & 2) { |
249 |
274 t = tile + TileDiffXY(1, 1); |
250 if ((p1 & SLOPE_S) != 0) { |
275 if (!TerraformTileHeight(&ts, t, TileHeight(t) + direction)) { |
251 TileIndex t = tile + TileDiffXY(1, 1); |
276 return CMD_ERROR; |
252 CommandCost cost = TerraformTileHeight(&ts, t, TileHeight(t) + direction); |
277 } |
253 if (CmdFailed(cost)) return cost; |
278 } |
254 total_cost.AddCost(cost); |
279 |
255 } |
280 if (p1 & 4) { |
256 |
281 t = tile + TileDiffXY(0, 1); |
257 if ((p1 & SLOPE_E) != 0) { |
282 if (!TerraformTileHeight(&ts, t, TileHeight(t) + direction)) { |
258 TileIndex t = tile + TileDiffXY(0, 1); |
283 return CMD_ERROR; |
259 CommandCost cost = TerraformTileHeight(&ts, t, TileHeight(t) + direction); |
284 } |
260 if (CmdFailed(cost)) return cost; |
285 } |
261 total_cost.AddCost(cost); |
286 |
262 } |
287 if (p1 & 8) { |
263 |
288 t = tile + TileDiffXY(0, 0); |
264 if ((p1 & SLOPE_N) != 0) { |
289 if (!TerraformTileHeight(&ts, t, TileHeight(t) + direction)) { |
265 TileIndex t = tile + TileDiffXY(0, 0); |
290 return CMD_ERROR; |
266 CommandCost cost = TerraformTileHeight(&ts, t, TileHeight(t) + direction); |
291 } |
267 if (CmdFailed(cost)) return cost; |
292 } |
268 total_cost.AddCost(cost); |
293 |
269 } |
|
270 |
|
271 /* Check if the terraforming is valid wrt. tunnels, bridges and objects on the surface */ |
294 { |
272 { |
295 /* Check if tunnel would take damage */ |
|
296 int count; |
273 int count; |
297 TileIndex *ti = ts.tile_table; |
274 TileIndex *ti = ts.tile_table; |
298 |
275 |
299 for (count = ts.tile_table_count; count != 0; count--, ti++) { |
276 for (count = ts.tile_table_count; count != 0; count--, ti++) { |
300 TileIndex tile = *ti; |
277 TileIndex tile = *ti; |
301 |
278 |
302 uint z_min = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(0, 0)); |
279 /* Find new heights of tile corners */ |
303 uint z_max = z_min; |
280 uint z_N = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(0, 0)); |
304 uint t = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(1, 0)); |
281 uint z_W = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(1, 0)); |
305 z_min = min(z_min, t); |
282 uint z_S = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(1, 1)); |
306 z_max = max(z_max, t); |
283 uint z_E = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(0, 1)); |
307 t = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(1, 1)); |
284 |
308 z_min = min(z_min, t); |
285 /* Find min and max height of tile */ |
309 z_max = max(z_max, t); |
286 uint z_min = min(min(z_N, z_W), min(z_S, z_E)); |
310 t = TerraformGetHeightOfTile(&ts, tile + TileDiffXY(0, 1)); |
287 uint z_max = max(max(z_N, z_W), max(z_S, z_E)); |
311 z_min = min(z_min, t); |
288 |
312 z_max = max(z_max, t); |
289 /* Compute tile slope */ |
313 |
290 uint tileh = (z_max > z_min + 1 ? SLOPE_STEEP : SLOPE_FLAT); |
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291 if (z_W > z_min) tileh += SLOPE_W; |
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292 if (z_S > z_min) tileh += SLOPE_S; |
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293 if (z_E > z_min) tileh += SLOPE_E; |
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294 if (z_N > z_min) tileh += SLOPE_N; |
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295 |
|
296 /* Check if bridge would take damage */ |
314 if (direction == 1 && MayHaveBridgeAbove(tile) && IsBridgeAbove(tile) && |
297 if (direction == 1 && MayHaveBridgeAbove(tile) && IsBridgeAbove(tile) && |
315 GetBridgeHeight(GetSouthernBridgeEnd(tile)) <= z_max * TILE_HEIGHT) { |
298 GetBridgeHeight(GetSouthernBridgeEnd(tile)) <= z_max * TILE_HEIGHT) { |
|
299 _terraform_err_tile = tile; // highlight the tile under the bridge |
316 return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST); |
300 return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST); |
317 } |
301 } |
|
302 /* Check if tunnel would take damage */ |
318 if (direction == -1 && IsTunnelInWay(tile, z_min * TILE_HEIGHT)) { |
303 if (direction == -1 && IsTunnelInWay(tile, z_min * TILE_HEIGHT)) { |
|
304 _terraform_err_tile = tile; // highlight the tile above the tunnel |
319 return_cmd_error(STR_1002_EXCAVATION_WOULD_DAMAGE); |
305 return_cmd_error(STR_1002_EXCAVATION_WOULD_DAMAGE); |
320 } |
306 } |
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307 /* Check tiletype-specific things, and add extra-cost */ |
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308 CommandCost cost = _tile_type_procs[GetTileType(tile)]->terraform_tile_proc(tile, flags, z_min * TILE_HEIGHT, (Slope) tileh); |
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309 if (CmdFailed(cost)) { |
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310 _terraform_err_tile = tile; |
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311 return cost; |
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312 } |
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313 total_cost.AddCost(cost); |
321 } |
314 } |
322 } |
315 } |
323 |
316 |
324 if (flags & DC_EXEC) { |
317 if (flags & DC_EXEC) { |
325 /* Clear the landscape at the tiles */ |
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326 { |
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327 int count; |
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328 TileIndex *ti = ts.tile_table; |
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329 for (count = ts.tile_table_count; count != 0; count--, ti++) { |
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330 DoCommand(*ti, 0, 0, flags, CMD_LANDSCAPE_CLEAR); |
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331 } |
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332 } |
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333 |
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334 /* change the height */ |
318 /* change the height */ |
335 { |
319 { |
336 int count; |
320 int count; |
337 TerraformerHeightMod *mod; |
321 TerraformerHeightMod *mod; |
338 |
322 |
339 mod = ts.modheight; |
323 mod = ts.modheight; |
340 for (count = ts.modheight_count; count != 0; count--, mod++) { |
324 for (count = ts.modheight_count; count != 0; count--, mod++) { |
341 TileIndex til = mod->tile; |
325 TileIndex til = mod->tile; |
342 |
326 |
343 SetTileHeight(til, mod->height); |
327 SetTileHeight(til, mod->height); |
344 TerraformAddDirtyTileAround(&ts, til); |
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345 } |
328 } |
346 } |
329 } |
347 |
330 |
348 /* finally mark the dirty tiles dirty */ |
331 /* finally mark the dirty tiles dirty */ |
349 { |
332 { |