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Location: cpp/openttd-patchpack/source/src/tile.cpp - annotation
r5838:b3aab5e9d39e
1.1 KiB
text/x-c
(svn r8404) -Update: WebTranslator2 update to 2007-01-25 19:36:44
korean - 2 changed by leejaeuk5 (2)
slovak - 1 changed by lengyel (1)
slovenian - 290 changed by Necrolyte (290)
ukrainian - 1 fixed, 55 changed by mad (7), znikoz (49)
korean - 2 changed by leejaeuk5 (2)
slovak - 1 changed by lengyel (1)
slovenian - 290 changed by Necrolyte (290)
ukrainian - 1 fixed, 55 changed by mad (7), znikoz (49)
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#include "stdafx.h"
#include "tile.h"
Slope GetTileSlope(TileIndex tile, uint *h)
{
uint a;
uint b;
uint c;
uint d;
uint min;
uint r;
assert(tile < MapSize());
if (TileX(tile) == MapMaxX() || TileY(tile) == MapMaxY()) {
if (h != NULL) *h = 0;
return SLOPE_FLAT;
}
min = a = TileHeight(tile);
b = TileHeight(tile + TileDiffXY(1, 0));
if (min >= b) min = b;
c = TileHeight(tile + TileDiffXY(0, 1));
if (min >= c) min = c;
d = TileHeight(tile + TileDiffXY(1, 1));
if (min >= d) min = d;
r = SLOPE_FLAT;
if ((a -= min) != 0) r += (--a << 4) + SLOPE_N;
if ((c -= min) != 0) r += (--c << 4) + SLOPE_E;
if ((d -= min) != 0) r += (--d << 4) + SLOPE_S;
if ((b -= min) != 0) r += (--b << 4) + SLOPE_W;
if (h != NULL) *h = min * TILE_HEIGHT;
return (Slope)r;
}
uint GetTileZ(TileIndex tile)
{
uint h;
GetTileSlope(tile, &h);
return h;
}
uint GetTileMaxZ(TileIndex t)
{
uint max;
uint h;
h = TileHeight(t);
max = h;
h = TileHeight(t + TileDiffXY(1, 0));
if (h > max) max = h;
h = TileHeight(t + TileDiffXY(0, 1));
if (h > max) max = h;
h = TileHeight(t + TileDiffXY(1, 1));
if (h > max) max = h;
return max * 8;
}
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