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(svn r21138) -Codechange: Introduce the concepts of frame and position in the tunnel / bridge entering code (Hirundo)

release/1.1
rubidium 2010-11-10 23:13:37 +00:00
parent 72a6eeef26
commit 8b8b4e083c
1 changed files with 4 additions and 0 deletions
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src/tunnelbridge_cmd.cpp
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@ -1502,6 +1502,10 @@ static VehicleEnterTileStatus VehicleEnter_TunnelBridge(Vehicle *v, TileIndex ti
const DiagDirection dir = GetTunnelBridgeDirection(tile);
/* Direction of the vehicle */
const DiagDirection vdir = DirToDiagDir(v->direction);
/* New position of the vehicle on the tile */
byte pos = (DiagDirToAxis(vdir) == AXIS_X ? x : y) & TILE_UNIT_MASK;
/* Number of units moved by the vehicle since entering the tile */
byte frame = (vdir == DIAGDIR_NE || vdir == DIAGDIR_NW) ? TILE_SIZE - 1 - pos : pos;
if (IsTunnel(tile)) {
byte fc = (x & 0xF) + (y << 4);