author | bjarni |
Mon, 05 Feb 2007 21:16:56 +0000 | |
changeset 6192 | c6adfc929c6b |
parent 5838 | 9c3129cb019b |
child 6254 | abc6ad7c035c |
permissions | -rw-r--r-- |
2186 | 1 |
/* $Id$ */ |
2 |
||
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#include "../../stdafx.h" |
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#include "../../openttd.h" |
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#include "../../bridge_map.h" |
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#include "../../debug.h" |
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#include "../../functions.h" |
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#include "../../map.h" |
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#include "../../tile.h" |
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#include "../../command.h" |
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#include "trolly.h" |
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#include "../../depot.h" |
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#include "../../tunnel_map.h" |
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#include "../../bridge.h" |
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#include "../ai.h" |
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#define TEST_STATION_NO_DIR 0xFF |
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// Tests if a station can be build on the given spot |
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// TODO: make it train compatible |
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static bool TestCanBuildStationHere(TileIndex tile, byte dir) |
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{ |
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Player *p = GetPlayer(_current_player); |
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if (dir == TEST_STATION_NO_DIR) { |
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int32 ret; |
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// TODO: currently we only allow spots that can be access from al 4 directions... |
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// should be fixed!!! |
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for (dir = 0; dir < 4; dir++) { |
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ret = AiNew_Build_Station(p, p->ainew.tbt, tile, 1, 1, dir, DC_QUERY_COST); |
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if (!CmdFailed(ret)) return true; |
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} |
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return false; |
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} |
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|
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// return true if command succeeded, so the inverse of CmdFailed() |
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return !CmdFailed(AiNew_Build_Station(p, p->ainew.tbt, tile, 1, 1, dir, DC_QUERY_COST)); |
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} |
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static bool IsRoad(TileIndex tile) |
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{ |
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return |
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// MP_STREET, but not a road depot? |
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(IsTileType(tile, MP_STREET) && !IsTileDepotType(tile, TRANSPORT_ROAD)) || |
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(IsTileType(tile, MP_TUNNELBRIDGE) && ( |
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(IsTunnel(tile) && GetTunnelTransportType(tile) == TRANSPORT_ROAD) || |
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(IsBridge(tile) && GetBridgeTransportType(tile) == TRANSPORT_ROAD) |
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)); |
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} |
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|
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// Checks if a tile 'a' is between the tiles 'b' and 'c' |
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#define TILES_BETWEEN(a, b, c) (TileX(a) >= TileX(b) && TileX(a) <= TileX(c) && TileY(a) >= TileY(b) && TileY(a) <= TileY(c)) |
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// Check if the current tile is in our end-area |
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static int32 AyStar_AiPathFinder_EndNodeCheck(AyStar *aystar, OpenListNode *current) |
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{ |
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const Ai_PathFinderInfo* PathFinderInfo = (Ai_PathFinderInfo*)aystar->user_target; |
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// It is not allowed to have a station on the end of a bridge or tunnel ;) |
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if (current->path.node.user_data[0] != 0) return AYSTAR_DONE; |
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if (TILES_BETWEEN(current->path.node.tile, PathFinderInfo->end_tile_tl, PathFinderInfo->end_tile_br)) |
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if (IsTileType(current->path.node.tile, MP_CLEAR) || IsTileType(current->path.node.tile, MP_TREES)) |
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if (current->path.parent == NULL || TestCanBuildStationHere(current->path.node.tile, AiNew_GetDirection(current->path.parent->node.tile, current->path.node.tile))) |
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return AYSTAR_FOUND_END_NODE; |
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return AYSTAR_DONE; |
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} |
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// Calculates the hash |
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// Currently it is a 10 bit hash, so the hash array has a max depth of 6 bits (so 64) |
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static uint AiPathFinder_Hash(uint key1, uint key2) |
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{ |
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return (TileX(key1) & 0x1F) + ((TileY(key1) & 0x1F) << 5); |
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} |
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// Clear the memory of all the things |
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static void AyStar_AiPathFinder_Free(AyStar *aystar) |
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{ |
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AyStarMain_Free(aystar); |
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delete aystar; |
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} |
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static int32 AyStar_AiPathFinder_CalculateG(AyStar *aystar, AyStarNode *current, OpenListNode *parent); |
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static int32 AyStar_AiPathFinder_CalculateH(AyStar *aystar, AyStarNode *current, OpenListNode *parent); |
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static void AyStar_AiPathFinder_FoundEndNode(AyStar *aystar, OpenListNode *current); |
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static void AyStar_AiPathFinder_GetNeighbours(AyStar *aystar, OpenListNode *current); |
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// This creates the AiPathFinder |
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AyStar *new_AyStar_AiPathFinder(int max_tiles_around, Ai_PathFinderInfo *PathFinderInfo) |
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{ |
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PathNode start_node; |
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uint x; |
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uint y; |
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// Create AyStar |
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AyStar *result = new AyStar(); |
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init_AyStar(result, AiPathFinder_Hash, 1 << 10); |
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// Set the function pointers |
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result->CalculateG = AyStar_AiPathFinder_CalculateG; |
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106 |
result->CalculateH = AyStar_AiPathFinder_CalculateH; |
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result->EndNodeCheck = AyStar_AiPathFinder_EndNodeCheck; |
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result->FoundEndNode = AyStar_AiPathFinder_FoundEndNode; |
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result->GetNeighbours = AyStar_AiPathFinder_GetNeighbours; |
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110 |
|
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111 |
result->free = AyStar_AiPathFinder_Free; |
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112 |
|
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113 |
// Set some information |
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114 |
result->loops_per_tick = AI_PATHFINDER_LOOPS_PER_TICK; |
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result->max_path_cost = 0; |
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result->max_search_nodes = AI_PATHFINDER_MAX_SEARCH_NODES; |
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117 |
|
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// Set the user_data to the PathFinderInfo |
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result->user_target = PathFinderInfo; |
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120 |
|
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121 |
// Set the start node |
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start_node.parent = NULL; |
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start_node.node.direction = 0; |
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start_node.node.user_data[0] = 0; |
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125 |
|
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// Now we add all the starting tiles |
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127 |
for (x = TileX(PathFinderInfo->start_tile_tl); x <= TileX(PathFinderInfo->start_tile_br); x++) { |
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128 |
for (y = TileY(PathFinderInfo->start_tile_tl); y <= TileY(PathFinderInfo->start_tile_br); y++) { |
1981 | 129 |
start_node.node.tile = TileXY(x, y); |
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result->addstart(result, &start_node.node, 0); |
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131 |
} |
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132 |
} |
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133 |
|
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134 |
return result; |
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135 |
} |
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136 |
|
2366 | 137 |
|
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138 |
// To reuse AyStar we sometimes have to clean all the memory |
1729 | 139 |
void clean_AyStar_AiPathFinder(AyStar *aystar, Ai_PathFinderInfo *PathFinderInfo) |
140 |
{ |
|
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PathNode start_node; |
1729 | 142 |
uint x; |
143 |
uint y; |
|
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144 |
|
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aystar->clear(aystar); |
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146 |
|
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147 |
// Set the user_data to the PathFinderInfo |
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aystar->user_target = PathFinderInfo; |
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149 |
|
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150 |
// Set the start node |
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start_node.parent = NULL; |
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start_node.node.direction = 0; |
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start_node.node.user_data[0] = 0; |
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154 |
start_node.node.tile = PathFinderInfo->start_tile_tl; |
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155 |
|
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// Now we add all the starting tiles |
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157 |
for (x = TileX(PathFinderInfo->start_tile_tl); x <= TileX(PathFinderInfo->start_tile_br); x++) { |
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for (y = TileY(PathFinderInfo->start_tile_tl); y <= TileY(PathFinderInfo->start_tile_br); y++) { |
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159 |
TileIndex tile = TileXY(x, y); |
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160 |
|
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161 |
if (!IsTileType(tile, MP_CLEAR) && !IsTileType(tile, MP_TREES)) continue; |
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162 |
if (!TestCanBuildStationHere(tile, TEST_STATION_NO_DIR)) continue; |
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start_node.node.tile = tile; |
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aystar->addstart(aystar, &start_node.node, 0); |
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165 |
} |
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166 |
} |
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167 |
} |
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168 |
|
2366 | 169 |
|
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170 |
// The h-value, simple calculation |
1729 | 171 |
static int32 AyStar_AiPathFinder_CalculateH(AyStar *aystar, AyStarNode *current, OpenListNode *parent) |
172 |
{ |
|
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const Ai_PathFinderInfo* PathFinderInfo = (Ai_PathFinderInfo*)aystar->user_target; |
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174 |
int r, r2; |
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175 |
|
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if (PathFinderInfo->end_direction != AI_PATHFINDER_NO_DIRECTION) { |
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// The station is pointing to a direction, add a tile towards that direction, so the H-value is more accurate |
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178 |
r = DistanceManhattan(current->tile, PathFinderInfo->end_tile_tl + TileOffsByDiagDir(PathFinderInfo->end_direction)); |
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r2 = DistanceManhattan(current->tile, PathFinderInfo->end_tile_br + TileOffsByDiagDir(PathFinderInfo->end_direction)); |
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180 |
} else { |
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181 |
// No direction, so just get the fastest route to the station |
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182 |
r = DistanceManhattan(current->tile, PathFinderInfo->end_tile_tl); |
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183 |
r2 = DistanceManhattan(current->tile, PathFinderInfo->end_tile_br); |
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184 |
} |
826 | 185 |
// See if the bottomright is faster than the topleft.. |
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186 |
if (r2 < r) r = r2; |
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187 |
return r * AI_PATHFINDER_H_MULTIPLER; |
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188 |
} |
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189 |
|
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|
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191 |
// We found the end.. let's get the route back and put it in an array |
1729 | 192 |
static void AyStar_AiPathFinder_FoundEndNode(AyStar *aystar, OpenListNode *current) |
193 |
{ |
|
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Ai_PathFinderInfo *PathFinderInfo = (Ai_PathFinderInfo*)aystar->user_target; |
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195 |
uint i = 0; |
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PathNode *parent = ¤t->path; |
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197 |
|
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198 |
do { |
1714 | 199 |
PathFinderInfo->route_extra[i] = parent->node.user_data[0]; |
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200 |
PathFinderInfo->route[i++] = parent->node.tile; |
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201 |
if (i > lengthof(PathFinderInfo->route)) { |
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202 |
// We ran out of space for the PathFinder |
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203 |
DEBUG(ai, 0, "No more space in pathfinder route[] array"); |
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204 |
PathFinderInfo->route_length = -1; // -1 indicates out of space |
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205 |
return; |
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206 |
} |
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207 |
parent = parent->parent; |
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208 |
} while (parent != NULL); |
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PathFinderInfo->route_length = i; |
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210 |
DEBUG(ai, 1, "Found route of %d nodes long in %d nodes of searching", i, Hash_Size(&aystar->ClosedListHash)); |
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211 |
} |
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212 |
|
2366 | 213 |
|
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214 |
// What tiles are around us. |
1729 | 215 |
static void AyStar_AiPathFinder_GetNeighbours(AyStar *aystar, OpenListNode *current) |
216 |
{ |
|
1714 | 217 |
int ret; |
218 |
int dir; |
|
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219 |
|
1714 | 220 |
Ai_PathFinderInfo *PathFinderInfo = (Ai_PathFinderInfo*)aystar->user_target; |
221 |
||
222 |
aystar->num_neighbours = 0; |
|
223 |
||
224 |
// Go through all surrounding tiles and check if they are within the limits |
|
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225 |
for (DiagDirection i = DIAGDIR_BEGIN; i < DIAGDIR_END; i++) { |
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226 |
TileIndex ctile = current->path.node.tile; // Current tile |
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227 |
TileIndex atile = ctile + TileOffsByDiagDir(i); // Adjacent tile |
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228 |
|
1729 | 229 |
if (TileX(atile) > 1 && TileX(atile) < MapMaxX() - 1 && |
230 |
TileY(atile) > 1 && TileY(atile) < MapMaxY() - 1) { |
|
1714 | 231 |
// We also directly test if the current tile can connect to this tile.. |
232 |
// We do this simply by just building the tile! |
|
233 |
||
234 |
// If the next step is a bridge, we have to enter it the right way |
|
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235 |
if (!PathFinderInfo->rail_or_road && IsRoad(atile)) { |
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236 |
if (IsTileType(atile, MP_TUNNELBRIDGE)) { |
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|
237 |
if (IsTunnel(atile)) { |
3179 | 238 |
if (GetTunnelDirection(atile) != i) continue; |
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|
239 |
} else { |
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240 |
if ((_m[atile].m5 & 1) != DiagDirToAxis(i)) continue; |
1714 | 241 |
} |
242 |
} |
|
243 |
} |
|
244 |
// But also if we are on a bridge, we can only move a certain direction |
|
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245 |
if (!PathFinderInfo->rail_or_road && IsRoad(ctile)) { |
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246 |
if (IsTileType(ctile, MP_TUNNELBRIDGE)) { |
1714 | 247 |
// An existing bridge/tunnel... let's test the direction ;) |
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248 |
if ((_m[ctile].m5 & 1) != (i & 1)) continue; |
1714 | 249 |
} |
250 |
} |
|
251 |
||
252 |
if ((AI_PATHFINDER_FLAG_BRIDGE & current->path.node.user_data[0]) != 0 || |
|
253 |
(AI_PATHFINDER_FLAG_TUNNEL & current->path.node.user_data[0]) != 0) { |
|
254 |
// We are a bridge/tunnel, how cool!! |
|
255 |
// This means we can only point forward.. get the direction from the user_data |
|
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|
256 |
if ((uint)i != (current->path.node.user_data[0] >> 8)) continue; |
1714 | 257 |
} |
258 |
dir = 0; |
|
259 |
||
260 |
// First, check if we have a parent |
|
261 |
if (current->path.parent == NULL && current->path.node.user_data[0] == 0) { |
|
262 |
// If not, this means we are at the starting station |
|
263 |
if (PathFinderInfo->start_direction != AI_PATHFINDER_NO_DIRECTION) { |
|
264 |
// We do need a direction? |
|
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265 |
if (AiNew_GetDirection(ctile, atile) != PathFinderInfo->start_direction) { |
1714 | 266 |
// We are not pointing the right way, invalid tile |
267 |
continue; |
|
268 |
} |
|
269 |
} |
|
270 |
} else if (current->path.node.user_data[0] == 0) { |
|
271 |
if (PathFinderInfo->rail_or_road) { |
|
272 |
// Rail check |
|
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273 |
dir = AiNew_GetRailDirection(current->path.parent->node.tile, ctile, atile); |
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274 |
ret = AI_DoCommand(ctile, 0, dir, DC_AUTO | DC_NO_WATER, CMD_BUILD_SINGLE_RAIL); |
1714 | 275 |
if (CmdFailed(ret)) continue; |
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|
276 |
#ifdef AI_PATHFINDER_NO_90DEGREES_TURN |
1714 | 277 |
if (current->path.parent->parent != NULL) { |
278 |
// Check if we don't make a 90degree curve |
|
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|
279 |
int dir1 = AiNew_GetRailDirection(current->path.parent->parent->node.tile, current->path.parent->node.tile, ctile); |
1714 | 280 |
if (_illegal_curves[dir1] == dir || _illegal_curves[dir] == dir1) { |
281 |
continue; |
|
282 |
} |
|
283 |
} |
|
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|
284 |
#endif |
1714 | 285 |
} else { |
286 |
// Road check |
|
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|
287 |
dir = AiNew_GetRoadDirection(current->path.parent->node.tile, ctile, atile); |
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|
288 |
if (IsRoad(ctile)) { |
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|
289 |
if (IsTileType(ctile, MP_TUNNELBRIDGE)) { |
1714 | 290 |
// We have a bridge, how nicely! We should mark it... |
291 |
dir = 0; |
|
292 |
} else { |
|
293 |
// It already has road.. check if we miss any bits! |
|
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|
294 |
if ((_m[ctile].m5 & dir) != dir) { |
1714 | 295 |
// We do miss some pieces :( |
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|
296 |
dir &= ~_m[ctile].m5; |
1714 | 297 |
} else { |
298 |
dir = 0; |
|
299 |
} |
|
300 |
} |
|
301 |
} |
|
302 |
// Only destruct things if it is MP_CLEAR of MP_TREES |
|
303 |
if (dir != 0) { |
|
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|
304 |
ret = AI_DoCommand(ctile, dir, 0, DC_AUTO | DC_NO_WATER, CMD_BUILD_ROAD); |
1714 | 305 |
if (CmdFailed(ret)) continue; |
306 |
} |
|
307 |
} |
|
308 |
} |
|
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|
309 |
|
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|
310 |
// The tile can be connected |
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|
311 |
aystar->neighbours[aystar->num_neighbours].tile = atile; |
1714 | 312 |
aystar->neighbours[aystar->num_neighbours].user_data[0] = 0; |
313 |
aystar->neighbours[aystar->num_neighbours++].direction = 0; |
|
314 |
} |
|
315 |
} |
|
193
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|
316 |
|
1714 | 317 |
// Next step, check for bridges and tunnels |
318 |
if (current->path.parent != NULL && current->path.node.user_data[0] == 0) { |
|
319 |
// First we get the dir from this tile and his parent |
|
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|
320 |
DiagDirection dir = AiNew_GetDirection(current->path.parent->node.tile, current->path.node.tile); |
1714 | 321 |
// It means we can only walk with the track, so the bridge has to be in the same direction |
322 |
TileIndex tile = current->path.node.tile; |
|
323 |
TileIndex new_tile = tile; |
|
3644
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|
324 |
Slope tileh = GetTileSlope(tile, NULL); |
1714 | 325 |
|
326 |
// Bridges can only be build on land that is not flat |
|
327 |
// And if there is a road or rail blocking |
|
3644
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|
328 |
if (tileh != SLOPE_FLAT || |
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|
329 |
(PathFinderInfo->rail_or_road && IsTileType(tile + TileOffsByDiagDir(dir), MP_STREET)) || |
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|
330 |
(!PathFinderInfo->rail_or_road && IsTileType(tile + TileOffsByDiagDir(dir), MP_RAILWAY))) { |
1714 | 331 |
for (;;) { |
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|
332 |
new_tile += TileOffsByDiagDir(dir); |
1714 | 333 |
|
334 |
// Precheck, is the length allowed? |
|
1729 | 335 |
if (!CheckBridge_Stuff(0, GetBridgeLength(tile, new_tile))) break; |
1714 | 336 |
|
337 |
// Check if we hit the station-tile.. we don't like that! |
|
1729 | 338 |
if (TILES_BETWEEN(new_tile, PathFinderInfo->end_tile_tl, PathFinderInfo->end_tile_br)) break; |
1714 | 339 |
|
340 |
// Try building the bridge.. |
|
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|
341 |
ret = AI_DoCommand(tile, new_tile, (0 << 8) + (MAX_BRIDGES / 2), DC_AUTO, CMD_BUILD_BRIDGE); |
1714 | 342 |
if (CmdFailed(ret)) continue; |
343 |
// We can build a bridge here.. add him to the neighbours |
|
344 |
aystar->neighbours[aystar->num_neighbours].tile = new_tile; |
|
345 |
aystar->neighbours[aystar->num_neighbours].user_data[0] = AI_PATHFINDER_FLAG_BRIDGE + (dir << 8); |
|
346 |
aystar->neighbours[aystar->num_neighbours++].direction = 0; |
|
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|
347 |
// We can only have 12 neighbours, and we need 1 left for tunnels |
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|
348 |
if (aystar->num_neighbours == 11) break; |
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|
349 |
} |
1714 | 350 |
} |
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|
351 |
|
1714 | 352 |
// Next, check for tunnels! |
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|
353 |
// Tunnels can only be built on slopes corresponding to the direction |
1714 | 354 |
// For now, we check both sides for this tile.. terraforming gives fuzzy result |
3644
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|
355 |
if ((dir == DIAGDIR_NE && tileh == SLOPE_NE) || |
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|
356 |
(dir == DIAGDIR_SE && tileh == SLOPE_SE) || |
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|
357 |
(dir == DIAGDIR_SW && tileh == SLOPE_SW) || |
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|
358 |
(dir == DIAGDIR_NW && tileh == SLOPE_NW)) { |
1714 | 359 |
// Now simply check if a tunnel can be build |
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|
360 |
ret = AI_DoCommand(tile, (PathFinderInfo->rail_or_road?0:0x200), 0, DC_AUTO, CMD_BUILD_TUNNEL); |
3055
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(svn r3644) Don't use FindLandscapeHeightByTile() when it's overkill - often it was just a complicated way of writing GetTileSlope(tile, NULL)
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diff
changeset
|
361 |
tileh = GetTileSlope(_build_tunnel_endtile, NULL); |
3644
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changeset
|
362 |
if (!CmdFailed(ret) && (tileh == SLOPE_SW || tileh == SLOPE_SE || tileh == SLOPE_NW || tileh == SLOPE_NE)) { |
1714 | 363 |
aystar->neighbours[aystar->num_neighbours].tile = _build_tunnel_endtile; |
364 |
aystar->neighbours[aystar->num_neighbours].user_data[0] = AI_PATHFINDER_FLAG_TUNNEL + (dir << 8); |
|
365 |
aystar->neighbours[aystar->num_neighbours++].direction = 0; |
|
366 |
} |
|
367 |
} |
|
368 |
} |
|
110
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|
369 |
} |
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|
370 |
|
2366 | 371 |
|
3644
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|
372 |
extern uint GetRailFoundation(Slope tileh, TrackBits bits); // XXX function declaration in .c |
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|
373 |
extern uint GetRoadFoundation(Slope tileh, RoadBits bits); // XXX function declaration in .c |
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|
374 |
extern uint GetBridgeFoundation(Slope tileh, Axis); // XXX function declaration in .c |
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|
375 |
enum { |
1714 | 376 |
BRIDGE_NO_FOUNDATION = 1 << 0 | 1 << 3 | 1 << 6 | 1 << 9 | 1 << 12, |
110
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|
377 |
}; |
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|
378 |
|
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|
379 |
// The most important function: it calculates the g-value |
1729 | 380 |
static int32 AyStar_AiPathFinder_CalculateG(AyStar *aystar, AyStarNode *current, OpenListNode *parent) |
381 |
{ |
|
110
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|
382 |
Ai_PathFinderInfo *PathFinderInfo = (Ai_PathFinderInfo*)aystar->user_target; |
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|
383 |
int r, res = 0; |
3644
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changeset
|
384 |
Slope tileh = GetTileSlope(current->tile, NULL); |
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changeset
|
385 |
Slope parent_tileh = GetTileSlope(parent->path.node.tile, NULL); |
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|
386 |
|
110
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changeset
|
387 |
// Check if we hit the end-tile |
1729 | 388 |
if (TILES_BETWEEN(current->tile, PathFinderInfo->end_tile_tl, PathFinderInfo->end_tile_br)) { |
110
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|
389 |
// We are at the end-tile, check if we had a direction or something... |
2366 | 390 |
if (PathFinderInfo->end_direction != AI_PATHFINDER_NO_DIRECTION && AiNew_GetDirection(current->tile, parent->path.node.tile) != PathFinderInfo->end_direction) { |
110
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|
391 |
// We are not pointing the right way, invalid tile |
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|
392 |
return AYSTAR_INVALID_NODE; |
2366 | 393 |
} |
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|
394 |
// If it was valid, drop out.. we don't build on the endtile |
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|
395 |
return 0; |
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|
396 |
} |
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|
397 |
|
110
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|
398 |
// Give everything a small penalty |
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|
399 |
res += AI_PATHFINDER_PENALTY; |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
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diff
changeset
|
400 |
|
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
401 |
if (!PathFinderInfo->rail_or_road) { |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
402 |
// Road has the lovely advantage it can use other road... check if |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
403 |
// the current tile is road, and if so, give a good bonus |
1047
d4c04332d837
(svn r1548) Move AI_PATHFINDER_IS_ROAD from ai.h to ai_pathfinder.c to avoid global namespace pollution, turn it into a function called IsRoad and improve the commments a bit
tron
parents:
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diff
changeset
|
404 |
if (IsRoad(current->tile)) { |
110
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
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parents:
84
diff
changeset
|
405 |
res -= AI_PATHFINDER_ROAD_ALREADY_EXISTS_BONUS; |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
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diff
changeset
|
406 |
} |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
407 |
} |
193
0a7025304867
(svn r194) -Codechange: stripping trailing-spaces. Please keep this that way!
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parents:
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diff
changeset
|
408 |
|
110
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
409 |
// We should give a penalty when the tile is going up or down.. this is one way to do so! |
1494
36882c64a497
(svn r1998) Give penalty 100 to the AI for using foundations (buildonslopes). This prevents it from building long road lines on foundations unless really necessary.
pasky
parents:
1459
diff
changeset
|
410 |
// Too bad we have to count it from the parent.. but that is not so bad. |
36882c64a497
(svn r1998) Give penalty 100 to the AI for using foundations (buildonslopes). This prevents it from building long road lines on foundations unless really necessary.
pasky
parents:
1459
diff
changeset
|
411 |
// We also dislike long routes on slopes, since they do not look too realistic |
36882c64a497
(svn r1998) Give penalty 100 to the AI for using foundations (buildonslopes). This prevents it from building long road lines on foundations unless really necessary.
pasky
parents:
1459
diff
changeset
|
412 |
// when there is a flat land all around, they are more expensive to build, and |
36882c64a497
(svn r1998) Give penalty 100 to the AI for using foundations (buildonslopes). This prevents it from building long road lines on foundations unless really necessary.
pasky
parents:
1459
diff
changeset
|
413 |
// especially they essentially block the ability to connect or cross the road |
36882c64a497
(svn r1998) Give penalty 100 to the AI for using foundations (buildonslopes). This prevents it from building long road lines on foundations unless really necessary.
pasky
parents:
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diff
changeset
|
414 |
// from one side. |
3644
45a307767dc1
(svn r4553) int and magic numbers -> Slope and DiagDirection
tron
parents:
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diff
changeset
|
415 |
if (parent_tileh != SLOPE_FLAT && parent->path.parent != NULL) { |
110
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
416 |
// Skip if the tile was from a bridge or tunnel |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
417 |
if (parent->path.node.user_data[0] == 0 && current->user_data[0] == 0) { |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
418 |
if (PathFinderInfo->rail_or_road) { |
5838
9c3129cb019b
(svn r8038) -Merge: the cpp branch. Effort of KUDr, Celestar, glx, Smoovius, stillunknown and pv2b.
rubidium
parents:
5835
diff
changeset
|
419 |
r = GetRailFoundation(parent_tileh, (TrackBits)(1 << AiNew_GetRailDirection(parent->path.parent->node.tile, parent->path.node.tile, current->tile))); |
110
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
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parents:
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diff
changeset
|
420 |
// Maybe is BRIDGE_NO_FOUNDATION a bit strange here, but it contains just the right information.. |
3644
45a307767dc1
(svn r4553) int and magic numbers -> Slope and DiagDirection
tron
parents:
3484
diff
changeset
|
421 |
if (r >= 15 || (r == 0 && HASBIT(BRIDGE_NO_FOUNDATION, tileh))) { |
110
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
422 |
res += AI_PATHFINDER_TILE_GOES_UP_PENALTY; |
1494
36882c64a497
(svn r1998) Give penalty 100 to the AI for using foundations (buildonslopes). This prevents it from building long road lines on foundations unless really necessary.
pasky
parents:
1459
diff
changeset
|
423 |
} else { |
36882c64a497
(svn r1998) Give penalty 100 to the AI for using foundations (buildonslopes). This prevents it from building long road lines on foundations unless really necessary.
pasky
parents:
1459
diff
changeset
|
424 |
res += AI_PATHFINDER_FOUNDATION_PENALTY; |
110
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
425 |
} |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
426 |
} else { |
4077
d3022f976946
(svn r5391) Miscellaneous, mostly bracing and whitespace, nothing spectacular
tron
parents:
4000
diff
changeset
|
427 |
if (!IsRoad(parent->path.node.tile) || !IsTileType(parent->path.node.tile, MP_TUNNELBRIDGE)) { |
5838
9c3129cb019b
(svn r8038) -Merge: the cpp branch. Effort of KUDr, Celestar, glx, Smoovius, stillunknown and pv2b.
rubidium
parents:
5835
diff
changeset
|
428 |
r = GetRoadFoundation(parent_tileh, (RoadBits)AiNew_GetRoadDirection(parent->path.parent->node.tile, parent->path.node.tile, current->tile)); |
4077
d3022f976946
(svn r5391) Miscellaneous, mostly bracing and whitespace, nothing spectacular
tron
parents:
4000
diff
changeset
|
429 |
if (r >= 15 || r == 0) { |
110
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
430 |
res += AI_PATHFINDER_TILE_GOES_UP_PENALTY; |
4077
d3022f976946
(svn r5391) Miscellaneous, mostly bracing and whitespace, nothing spectacular
tron
parents:
4000
diff
changeset
|
431 |
} else { |
1494
36882c64a497
(svn r1998) Give penalty 100 to the AI for using foundations (buildonslopes). This prevents it from building long road lines on foundations unless really necessary.
pasky
parents:
1459
diff
changeset
|
432 |
res += AI_PATHFINDER_FOUNDATION_PENALTY; |
4077
d3022f976946
(svn r5391) Miscellaneous, mostly bracing and whitespace, nothing spectacular
tron
parents:
4000
diff
changeset
|
433 |
} |
110
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
434 |
} |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
435 |
} |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
436 |
} |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
437 |
} |
193
0a7025304867
(svn r194) -Codechange: stripping trailing-spaces. Please keep this that way!
truelight
parents:
145
diff
changeset
|
438 |
|
110
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
439 |
// Are we part of a tunnel? |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
440 |
if ((AI_PATHFINDER_FLAG_TUNNEL & current->user_data[0]) != 0) { |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
441 |
// Tunnels are very expensive when build on long routes.. |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
442 |
// Ironicly, we are using BridgeCode here ;) |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
443 |
r = AI_PATHFINDER_TUNNEL_PENALTY * GetBridgeLength(current->tile, parent->path.node.tile); |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
444 |
res += r + (r >> 8); |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
445 |
} |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
446 |
|
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
447 |
// Are we part of a bridge? |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
448 |
if ((AI_PATHFINDER_FLAG_BRIDGE & current->user_data[0]) != 0) { |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
449 |
// That means for every length a penalty |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
450 |
res += AI_PATHFINDER_BRIDGE_PENALTY * GetBridgeLength(current->tile, parent->path.node.tile); |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
451 |
// Check if we are going up or down, first for the starting point |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
452 |
// In user_data[0] is at the 8th bit the direction |
3644
45a307767dc1
(svn r4553) int and magic numbers -> Slope and DiagDirection
tron
parents:
3484
diff
changeset
|
453 |
if (!HASBIT(BRIDGE_NO_FOUNDATION, parent_tileh)) { |
5838
9c3129cb019b
(svn r8038) -Merge: the cpp branch. Effort of KUDr, Celestar, glx, Smoovius, stillunknown and pv2b.
rubidium
parents:
5835
diff
changeset
|
454 |
if (GetBridgeFoundation(parent_tileh, (Axis)((current->user_data[0] >> 8) & 1)) < 15) { |
110
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
455 |
res += AI_PATHFINDER_BRIDGE_GOES_UP_PENALTY; |
4000
bab1ebc37da0
(svn r5210) Many small changes which piled up: const, unsigned, variable scope, CSE for readability, DeMorgan, if cascades -> switch, whitespace, parentheses, bracing, misc.
tron
parents:
3644
diff
changeset
|
456 |
} |
110
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
457 |
} |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
458 |
// Second for the end point |
3644
45a307767dc1
(svn r4553) int and magic numbers -> Slope and DiagDirection
tron
parents:
3484
diff
changeset
|
459 |
if (!HASBIT(BRIDGE_NO_FOUNDATION, tileh)) { |
5838
9c3129cb019b
(svn r8038) -Merge: the cpp branch. Effort of KUDr, Celestar, glx, Smoovius, stillunknown and pv2b.
rubidium
parents:
5835
diff
changeset
|
460 |
if (GetBridgeFoundation(tileh, (Axis)((current->user_data[0] >> 8) & 1)) < 15) { |
110
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
461 |
res += AI_PATHFINDER_BRIDGE_GOES_UP_PENALTY; |
4000
bab1ebc37da0
(svn r5210) Many small changes which piled up: const, unsigned, variable scope, CSE for readability, DeMorgan, if cascades -> switch, whitespace, parentheses, bracing, misc.
tron
parents:
3644
diff
changeset
|
462 |
} |
110
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
463 |
} |
3644
45a307767dc1
(svn r4553) int and magic numbers -> Slope and DiagDirection
tron
parents:
3484
diff
changeset
|
464 |
if (parent_tileh == SLOPE_FLAT) res += AI_PATHFINDER_BRIDGE_GOES_UP_PENALTY; |
45a307767dc1
(svn r4553) int and magic numbers -> Slope and DiagDirection
tron
parents:
3484
diff
changeset
|
465 |
if (tileh == SLOPE_FLAT) res += AI_PATHFINDER_BRIDGE_GOES_UP_PENALTY; |
110
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
466 |
} |
193
0a7025304867
(svn r194) -Codechange: stripping trailing-spaces. Please keep this that way!
truelight
parents:
145
diff
changeset
|
467 |
|
110
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
468 |
// To prevent the AI from taking the fastest way in tiles, but not the fastest way |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
469 |
// in speed, we have to give a good penalty to direction changing |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
470 |
// This way, we get almost the fastest way in tiles, and a very good speed on the track |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
471 |
if (!PathFinderInfo->rail_or_road) { |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
472 |
if (parent->path.parent != NULL && |
2366 | 473 |
AiNew_GetDirection(current->tile, parent->path.node.tile) != AiNew_GetDirection(parent->path.node.tile, parent->path.parent->node.tile)) { |
110
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
474 |
// When road exists, we don't like turning, but its free, so don't be to piggy about it |
4000
bab1ebc37da0
(svn r5210) Many small changes which piled up: const, unsigned, variable scope, CSE for readability, DeMorgan, if cascades -> switch, whitespace, parentheses, bracing, misc.
tron
parents:
3644
diff
changeset
|
475 |
if (IsRoad(parent->path.node.tile)) { |
110
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
476 |
res += AI_PATHFINDER_DIRECTION_CHANGE_ON_EXISTING_ROAD_PENALTY; |
4000
bab1ebc37da0
(svn r5210) Many small changes which piled up: const, unsigned, variable scope, CSE for readability, DeMorgan, if cascades -> switch, whitespace, parentheses, bracing, misc.
tron
parents:
3644
diff
changeset
|
477 |
} else { |
110
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
478 |
res += AI_PATHFINDER_DIRECTION_CHANGE_PENALTY; |
4000
bab1ebc37da0
(svn r5210) Many small changes which piled up: const, unsigned, variable scope, CSE for readability, DeMorgan, if cascades -> switch, whitespace, parentheses, bracing, misc.
tron
parents:
3644
diff
changeset
|
479 |
} |
110
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
480 |
} |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
481 |
} else { |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
482 |
// For rail we have 1 exeption: diagonal rail.. |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
483 |
// So we fetch 2 raildirection. That of the current one, and of the one before that |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
484 |
if (parent->path.parent != NULL && parent->path.parent->parent != NULL) { |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
485 |
int dir1 = AiNew_GetRailDirection(parent->path.parent->node.tile, parent->path.node.tile, current->tile); |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
486 |
int dir2 = AiNew_GetRailDirection(parent->path.parent->parent->node.tile, parent->path.parent->node.tile, parent->path.node.tile); |
826 | 487 |
// First, see if we are on diagonal path, that is better than straight path |
3033
e4f7c60a1742
(svn r3613) Some more const, indentation, whitespace and similar stuff
tron
parents:
2916
diff
changeset
|
488 |
if (dir1 > 1) res -= AI_PATHFINDER_DIAGONAL_BONUS; |
110
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
489 |
|
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
490 |
// First see if they are different |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
491 |
if (dir1 != dir2) { |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
492 |
// dir 2 and 3 are 1 diagonal track, and 4 and 5. |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
493 |
if (!(((dir1 == 2 || dir1 == 3) && (dir2 == 2 || dir2 == 3)) || ((dir1 == 4 || dir1 == 5) && (dir2 == 4 || dir2 == 5)))) { |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
494 |
// It is not, so we changed of direction |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
495 |
res += AI_PATHFINDER_DIRECTION_CHANGE_PENALTY; |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
496 |
} |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
497 |
if (parent->path.parent->parent->parent != NULL) { |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
498 |
int dir3 = AiNew_GetRailDirection(parent->path.parent->parent->parent->node.tile, parent->path.parent->parent->node.tile, parent->path.parent->node.tile); |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
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parents:
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diff
changeset
|
499 |
// Check if we changed 3 tiles of direction in 3 tiles.. bad!!! |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
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parents:
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|
500 |
if ((dir1 == 0 || dir1 == 1) && dir2 > 1 && (dir3 == 0 || dir3 == 1)) { |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
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diff
changeset
|
501 |
res += AI_PATHFINDER_CURVE_PENALTY; |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
502 |
} |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
503 |
} |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
504 |
} |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
84
diff
changeset
|
505 |
} |
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
truelight
parents:
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changeset
|
506 |
} |
193
0a7025304867
(svn r194) -Codechange: stripping trailing-spaces. Please keep this that way!
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507 |
|
2549 | 508 |
return (res < 0) ? 0 : res; |
110
a22a6b07904b
(svn r111) -Fix: converted all linebreaks to UNIX-linebreak (\n)
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parents:
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diff
changeset
|
509 |
} |