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(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.

release/0.4.5
pasky 2005-03-12 08:52:40 +00:00
parent 2d9611f948
commit e76912303c
2 changed files with 11 additions and 1 deletions
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2
ai.h
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@ -37,6 +37,8 @@
#define AI_PATHFINDER_PENALTY 150 #define AI_PATHFINDER_PENALTY 150
// The penalty given to a tile that is going up // The penalty given to a tile that is going up
#define AI_PATHFINDER_TILE_GOES_UP_PENALTY 450 #define AI_PATHFINDER_TILE_GOES_UP_PENALTY 450
// The penalty given to a tile which would have to use fundation
#define AI_PATHFINDER_FOUNDATION_PENALTY 100
// Changing direction is a penalty, to prevent curved ways (with that: slow ways) // Changing direction is a penalty, to prevent curved ways (with that: slow ways)
#define AI_PATHFINDER_DIRECTION_CHANGE_PENALTY 200 #define AI_PATHFINDER_DIRECTION_CHANGE_PENALTY 200
// Same penalty, only for when road already exists // Same penalty, only for when road already exists

10
ai_pathfinder.c
View File

@ -394,7 +394,11 @@ static int32 AyStar_AiPathFinder_CalculateG(AyStar *aystar, AyStarNode *current,
} }
// We should give a penalty when the tile is going up or down.. this is one way to do so! // We should give a penalty when the tile is going up or down.. this is one way to do so!
// Too bad we have to count it from the parent.. but that is not so bad // Too bad we have to count it from the parent.. but that is not so bad.
// We also dislike long routes on slopes, since they do not look too realistic
// when there is a flat land all around, they are more expensive to build, and
// especially they essentially block the ability to connect or cross the road
// from one side.
if (parent_ti.tileh != 0 && parent->path.parent != NULL) { if (parent_ti.tileh != 0 && parent->path.parent != NULL) {
// Skip if the tile was from a bridge or tunnel // Skip if the tile was from a bridge or tunnel
if (parent->path.node.user_data[0] == 0 && current->user_data[0] == 0) { if (parent->path.node.user_data[0] == 0 && current->user_data[0] == 0) {
@ -403,12 +407,16 @@ static int32 AyStar_AiPathFinder_CalculateG(AyStar *aystar, AyStarNode *current,
// Maybe is BRIDGE_NO_FOUNDATION a bit strange here, but it contains just the right information.. // Maybe is BRIDGE_NO_FOUNDATION a bit strange here, but it contains just the right information..
if (r >= 15 || (r == 0 && (BRIDGE_NO_FOUNDATION & (1 << ti.tileh)))) { if (r >= 15 || (r == 0 && (BRIDGE_NO_FOUNDATION & (1 << ti.tileh)))) {
res += AI_PATHFINDER_TILE_GOES_UP_PENALTY; res += AI_PATHFINDER_TILE_GOES_UP_PENALTY;
} else {
res += AI_PATHFINDER_FOUNDATION_PENALTY;
} }
} else { } else {
if (!(IsRoad(parent->path.node.tile) && IsTileType(parent->path.node.tile, MP_TUNNELBRIDGE))) { if (!(IsRoad(parent->path.node.tile) && IsTileType(parent->path.node.tile, MP_TUNNELBRIDGE))) {
r = GetRoadFoundation(parent_ti.tileh, AiNew_GetRoadDirection(parent->path.parent->node.tile, parent->path.node.tile, current->tile)); r = GetRoadFoundation(parent_ti.tileh, AiNew_GetRoadDirection(parent->path.parent->node.tile, parent->path.node.tile, current->tile));
if (r >= 15 || r == 0) if (r >= 15 || r == 0)
res += AI_PATHFINDER_TILE_GOES_UP_PENALTY; res += AI_PATHFINDER_TILE_GOES_UP_PENALTY;
else
res += AI_PATHFINDER_FOUNDATION_PENALTY;
} }
} }
} }