| author | belugas |
| Tue, 04 Mar 2008 17:07:33 +0000 | |
| changeset 9168 | a35d94d8501c |
| parent 8579 | 3efbb430092e |
| permissions | -rw-r--r-- |
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/* $Id$ */ |
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/** @file bridge_map.cpp Map accessor functions for bridges. */ |
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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 "bridge.h" |
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#include "variables.h" |
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#include "landscape.h" |
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#include "tunnelbridge_map.h" |
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TileIndex GetBridgeEnd(TileIndex tile, DiagDirection dir) |
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{
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TileIndexDiff delta = TileOffsByDiagDir(dir); |
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dir = ReverseDiagDir(dir); |
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do {
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tile += delta; |
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} while (!IsBridgeTile(tile) || GetTunnelBridgeDirection(tile) != 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, GetTunnelBridgeDirection(tile)); |
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} |
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uint GetBridgeHeight(TileIndex t) |
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{
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uint h; |
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Slope tileh = GetTileSlope(t, &h); |
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Foundation f = GetBridgeFoundation(tileh, DiagDirToAxis(GetTunnelBridgeDirection(t))); |
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/* one height level extra for the ramp */ |
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return h + TILE_HEIGHT + ApplyFoundationToSlope(f, &tileh); |
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} |