mirror of https://github.com/OpenTTD/OpenTTD.git
(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.
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ai.h
2
ai.h
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@ -37,6 +37,8 @@
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#define AI_PATHFINDER_PENALTY 150
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// The penalty given to a tile that is going up
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#define AI_PATHFINDER_TILE_GOES_UP_PENALTY 450
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// The penalty given to a tile which would have to use fundation
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#define AI_PATHFINDER_FOUNDATION_PENALTY 100
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// Changing direction is a penalty, to prevent curved ways (with that: slow ways)
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#define AI_PATHFINDER_DIRECTION_CHANGE_PENALTY 200
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// Same penalty, only for when road already exists
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@ -394,7 +394,11 @@ static int32 AyStar_AiPathFinder_CalculateG(AyStar *aystar, AyStarNode *current,
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}
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// We should give a penalty when the tile is going up or down.. this is one way to do so!
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// Too bad we have to count it from the parent.. but that is not so bad
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// Too bad we have to count it from the parent.. but that is not so bad.
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// We also dislike long routes on slopes, since they do not look too realistic
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// when there is a flat land all around, they are more expensive to build, and
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// especially they essentially block the ability to connect or cross the road
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// from one side.
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if (parent_ti.tileh != 0 && parent->path.parent != NULL) {
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// Skip if the tile was from a bridge or tunnel
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if (parent->path.node.user_data[0] == 0 && current->user_data[0] == 0) {
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@ -403,12 +407,16 @@ static int32 AyStar_AiPathFinder_CalculateG(AyStar *aystar, AyStarNode *current,
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// Maybe is BRIDGE_NO_FOUNDATION a bit strange here, but it contains just the right information..
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if (r >= 15 || (r == 0 && (BRIDGE_NO_FOUNDATION & (1 << ti.tileh)))) {
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res += AI_PATHFINDER_TILE_GOES_UP_PENALTY;
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} else {
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res += AI_PATHFINDER_FOUNDATION_PENALTY;
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}
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} else {
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if (!(IsRoad(parent->path.node.tile) && IsTileType(parent->path.node.tile, MP_TUNNELBRIDGE))) {
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r = GetRoadFoundation(parent_ti.tileh, AiNew_GetRoadDirection(parent->path.parent->node.tile, parent->path.node.tile, current->tile));
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if (r >= 15 || r == 0)
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res += AI_PATHFINDER_TILE_GOES_UP_PENALTY;
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else
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res += AI_PATHFINDER_FOUNDATION_PENALTY;
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}
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}
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}
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