mirrors
/
OpenTTD
mirror of https://github.com/OpenTTD/OpenTTD.git
2
0
Fork 0
Code Issues Projects Releases Wiki Activity

(svn r15789) -Codechange: Add DiagdirBetweenTiles() and use it.

This commit is contained in:
frosch 2009-03-21 21:43:23 +00:00
parent fd0f0bda72
commit d452a0a0ec
5 changed files with 26 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/ai/api/ai_bridge.cpp
View File

@ -92,7 +92,7 @@ static void _DoCommandReturnBuildBridge1(class AIInstance *instance)
TileIndex end = AIObject::GetCallbackVariable(0);
TileIndex start = AIObject::GetCallbackVariable(1);
DiagDirection dir_1 = (DiagDirection)((::TileX(start) == ::TileX(end)) ? (::TileY(start) < ::TileY(end) ? DIAGDIR_NW : DIAGDIR_SE) : (::TileX(start) < ::TileX(end) ? DIAGDIR_NE : DIAGDIR_SW));
DiagDirection dir_1 = ::DiagdirBetweenTiles(end, start);
DiagDirection dir_2 = ::ReverseDiagDir(dir_1);
if (!AIObject::DoCommand(start + ::TileOffsByDiagDir(dir_1), ::DiagDirToRoadBits(dir_2) | (AIObject::GetRoadType() << 4), 0, CMD_BUILD_ROAD, NULL, &_DoCommandReturnBuildBridge2)) return false;
@ -107,7 +107,7 @@ static void _DoCommandReturnBuildBridge1(class AIInstance *instance)
TileIndex end = AIObject::GetCallbackVariable(0);
TileIndex start = AIObject::GetCallbackVariable(1);
DiagDirection dir_1 = (DiagDirection)((::TileX(start) == ::TileX(end)) ? (::TileY(start) < ::TileY(end) ? DIAGDIR_NW : DIAGDIR_SE) : (::TileX(start) < ::TileX(end) ? DIAGDIR_NE : DIAGDIR_SW));
DiagDirection dir_1 = ::DiagdirBetweenTiles(end, start);
DiagDirection dir_2 = ::ReverseDiagDir(dir_1);
return AIObject::DoCommand(end + ::TileOffsByDiagDir(dir_2), ::DiagDirToRoadBits(dir_1) | (AIObject::GetRoadType() << 4), 0, CMD_BUILD_ROAD);

3
src/ai/api/ai_marine.cpp
View File

@ -50,9 +50,8 @@
/* Tiles not neighbouring */
if (::DistanceManhattan(t1, t2) != 1) return false;
if (t1 > t2) Swap(t1, t2);
DiagDirection to_other_tile = (TileX(t1) == TileX(t2)) ? DIAGDIR_SE : DIAGDIR_SW;
DiagDirection to_other_tile = ::DiagdirBetweenTiles(t1, t2);
/* Determine the reachable tracks from the shared edge */
TrackBits gtts2 = ::TrackStatusToTrackBits(::GetTileTrackStatus(t2, TRANSPORT_WATER, 0, to_other_tile)) & ::DiagdirReachesTracks(to_other_tile);

4
src/ai/api/ai_tunnel.cpp
View File

@ -86,7 +86,7 @@ static void _DoCommandReturnBuildTunnel1(class AIInstance *instance)
TileIndex end = AIObject::GetCallbackVariable(0);
TileIndex start = AITunnel::GetOtherTunnelEnd(end);
DiagDirection dir_1 = (DiagDirection)((::TileX(start) == ::TileX(end)) ? (::TileY(start) < ::TileY(end) ? DIAGDIR_NW : DIAGDIR_SE) : (::TileX(start) < ::TileX(end) ? DIAGDIR_NE : DIAGDIR_SW));
DiagDirection dir_1 = ::DiagdirBetweenTiles(end, start);
DiagDirection dir_2 = ::ReverseDiagDir(dir_1);
if (!AIObject::DoCommand(start + ::TileOffsByDiagDir(dir_1), ::DiagDirToRoadBits(dir_2) | (AIObject::GetRoadType() << 4), 0, CMD_BUILD_ROAD, NULL, &_DoCommandReturnBuildTunnel2)) return false;
@ -101,7 +101,7 @@ static void _DoCommandReturnBuildTunnel1(class AIInstance *instance)
TileIndex end = AIObject::GetCallbackVariable(0);
TileIndex start = AITunnel::GetOtherTunnelEnd(end);
DiagDirection dir_1 = (DiagDirection)((::TileX(start) == ::TileX(end)) ? (::TileY(start) < ::TileY(end) ? DIAGDIR_NW : DIAGDIR_SE) : (::TileX(start) < ::TileX(end) ? DIAGDIR_NE : DIAGDIR_SW));
DiagDirection dir_1 = ::DiagdirBetweenTiles(end, start);
DiagDirection dir_2 = ::ReverseDiagDir(dir_1);
return AIObject::DoCommand(end + ::TileOffsByDiagDir(dir_2), ::DiagDirToRoadBits(dir_1) | (AIObject::GetRoadType() << 4), 0, CMD_BUILD_ROAD);

20
src/map_func.h
View File

@ -374,6 +374,26 @@ static inline TileIndex TileAddByDiagDir(TileIndex tile, DiagDirection dir)
return TILE_ADD(tile, TileOffsByDiagDir(dir));
}
/**
* Determines the DiagDirection to get from one tile to another.
* The tiles do not necessarily have to be adjacent.
* @param tile_from Origin tile
* @param tile_to Destination tile
* @return DiagDirection from tile_from towards tile_to, or INVALID_DIAGDIR if the tiles are not on an axis
*/
static inline DiagDirection DiagdirBetweenTiles(TileIndex tile_from, TileIndex tile_to)
{
int dx = (int)TileX(tile_to) - (int)TileX(tile_from);
int dy = (int)TileY(tile_to) - (int)TileY(tile_from);
if (dx == 0) {
if (dy == 0) return INVALID_DIAGDIR;
return (dy < 0 ? DIAGDIR_NW : DIAGDIR_SE);
} else {
if (dy != 0) return INVALID_DIAGDIR;
return (dx < 0 ? DIAGDIR_NE : DIAGDIR_SW);
}
}
/**
* A callback function type for searching tiles.
*

11
src/train_cmd.cpp
View File

@ -3362,14 +3362,6 @@ static const Direction _new_vehicle_direction_table[11] = {
DIR_E , DIR_SE, DIR_S
};
static inline Direction GetNewVehicleDirectionByTile(TileIndex new_tile, TileIndex old_tile)
{
uint offs = (TileY(new_tile) - TileY(old_tile) + 1) * 4 +
TileX(new_tile) - TileX(old_tile) + 1;
assert(offs < 11);
return _new_vehicle_direction_table[offs];
}
static inline int GetDirectionToVehicle(const Vehicle *v, int x, int y)
{
byte offs;
@ -3664,8 +3656,7 @@ static void TrainController(Vehicle *v, Vehicle *nomove)
/* A new tile is about to be entered. */
/* Determine what direction we're entering the new tile from */
Direction dir = GetNewVehicleDirectionByTile(gp.new_tile, gp.old_tile);
enterdir = DirToDiagDir(dir);
enterdir = DiagdirBetweenTiles(gp.old_tile, gp.new_tile);
assert(IsValidDiagDirection(enterdir));
/* Get the status of the tracks in the new tile and mask