mirror of https://github.com/OpenTTD/OpenTTD.git
55 lines
976 B
C
55 lines
976 B
C
/* $Id$ */
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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 "variables.h"
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TileIndex GetBridgeEnd(TileIndex tile, DiagDirection dir)
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{
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TileIndexDiff delta = TileOffsByDir(dir);
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do { tile += delta; } while (IsBridgeAbove(tile) && IsBridgeOfAxis(tile, DiagDirToAxis(dir)));
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return tile;
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}
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TileIndex GetNorthernBridgeEnd(TileIndex t)
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{
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return GetBridgeEnd(t, ReverseDiagDir(AxisToDiagDir(GetBridgeAxis(t))));
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}
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TileIndex GetSouthernBridgeEnd(TileIndex t)
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{
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return GetBridgeEnd(t, AxisToDiagDir(GetBridgeAxis(t)));
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}
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TileIndex GetOtherBridgeEnd(TileIndex tile)
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{
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assert(IsBridgeTile(tile));
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return GetBridgeEnd(tile, GetBridgeRampDirection(tile));
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}
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uint GetBridgeHeight(TileIndex tile, Axis a)
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{
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uint h, f;
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uint tileh = GetTileSlope(tile, &h);
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f = GetBridgeFoundation(tileh, a);
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if (f) {
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if (f < 15) {
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h += TILE_HEIGHT;
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tileh = SLOPE_FLAT;
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} else {
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tileh = _inclined_tileh[f - 15];
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}
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}
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return h + TILE_HEIGHT;
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}
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