author | tron |
Sat, 25 Jun 2005 16:44:57 +0000 | |
changeset 1981 | de031d2aed47 |
parent 1854 | 8e246ac3d172 |
child 2049 | ad0d49c916d4 |
permissions | -rw-r--r-- |
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(svn r1717) -Fix: some compilation problems for braindead VS6 and added missing files to project (thx bociusz)
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#include "stdafx.h" |
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#include "tile.h" |
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void SetMapExtraBits(TileIndex tile, byte bits) |
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{ |
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assert(tile < MapSize()); |
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SB(_map_extra_bits[tile >> 2], (tile & 3) * 2, 2, bits & 3); |
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} |
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uint GetMapExtraBits(TileIndex tile) |
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{ |
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assert(tile < MapSize()); |
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return GB(_map_extra_bits[tile >> 2], (tile & 3) * 2, 2); |
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} |
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(svn r1839) Move GetTileSlope() and GetTileZ() into tile.[ch] and use more explicit types as parameters
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uint GetTileSlope(TileIndex tile, uint *h) |
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{ |
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uint a; |
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uint b; |
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uint c; |
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uint d; |
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uint min; |
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uint r; |
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assert(tile < MapSize()); |
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if (TileX(tile) == MapMaxX() || TileY(tile) == MapMaxY()) { |
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if (h != NULL) *h = 0; |
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return 0; |
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} |
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min = a = TileHeight(tile); |
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b = TileHeight(tile + TileDiffXY(1, 0)); |
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if (min >= b) min = b; |
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c = TileHeight(tile + TileDiffXY(0, 1)); |
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if (min >= c) min = c; |
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d = TileHeight(tile + TileDiffXY(1, 1)); |
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if (min >= d) min = d; |
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r = 0; |
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if ((a -= min) != 0) { r += (--a << 4) + 8; } |
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if ((c -= min) != 0) { r += (--c << 4) + 4; } |
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if ((d -= min) != 0) { r += (--d << 4) + 2; } |
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if ((b -= min) != 0) { r += (--b << 4) + 1; } |
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if (h != NULL) |
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*h = min * 8; |
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return r; |
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} |
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tron
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uint GetTileZ(TileIndex tile) |
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{ |
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uint h; |
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GetTileSlope(tile, &h); |
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return h; |
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} |