Exemple #1
0
static uint32 CanalGetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available)
{
	TileIndex tile = object->u.canal.tile;

	switch (variable) {
		/* Height of tile */
		case 0x80: {
			uint z = GetTileZ(tile) / TILE_HEIGHT;
			/* Return consistent height within locks */
			if (IsTileType(tile, MP_WATER) && IsLock(tile) && GetSection(tile) >= 8) z--;
			return z;
		}

		/* Terrain type */
		case 0x81: return GetTerrainType(tile);

		/* Random data for river or canal tiles, otherwise zero */
		case 0x83: return IsTileType(tile, MP_WATER) ? GetWaterTileRandomBits(tile) : 0;
	}

	DEBUG(grf, 1, "Unhandled canal variable 0x%02X", variable);

	*available = false;
	return UINT_MAX;
}
Exemple #2
0
/* virtual */ uint32 CanalScopeResolver::GetVariable(byte variable, uint32 parameter, bool *available) const
{
	switch (variable) {
		/* Height of tile */
		case 0x80: {
			int z = GetTileZ(this->tile);
			/* Return consistent height within locks */
			if (IsTileType(this->tile, MP_WATER) && IsLock(this->tile) && GetLockPart(this->tile) == LOCK_PART_UPPER) z--;
			return z;
		}

		/* Terrain type */
		case 0x81: return GetTerrainType(this->tile);

		/* Dike map: Connectivity info for river and canal tiles
		 *
		 * Assignment of bits to directions defined in agreement with
		 * http://projects.tt-forums.net/projects/ttdpatch/repository/revisions/2367/entry/trunk/patches/water.asm#L879
		 *         7
		 *      3     0
		 *   6     *     4
		 *      2     1
		 *         5
		 */
		case 0x82: {
			uint32 connectivity =
				  (!IsWateredTile(TILE_ADDXY(tile, -1,  0), DIR_SW) << 0)  // NE
				+ (!IsWateredTile(TILE_ADDXY(tile,  0,  1), DIR_NW) << 1)  // SE
				+ (!IsWateredTile(TILE_ADDXY(tile,  1,  0), DIR_NE) << 2)  // SW
				+ (!IsWateredTile(TILE_ADDXY(tile,  0, -1), DIR_SE) << 3)  // NW
				+ (!IsWateredTile(TILE_ADDXY(tile, -1,  1), DIR_W)  << 4)  // E
				+ (!IsWateredTile(TILE_ADDXY(tile,  1,  1), DIR_N)  << 5)  // S
				+ (!IsWateredTile(TILE_ADDXY(tile,  1, -1), DIR_E)  << 6)  // W
				+ (!IsWateredTile(TILE_ADDXY(tile, -1, -1), DIR_S)  << 7); // N
			return connectivity;
		}

		/* Random data for river or canal tiles, otherwise zero */
		case 0x83: return IsTileType(this->tile, MP_WATER) ? GetWaterTileRandomBits(this->tile) : 0;
	}

	DEBUG(grf, 1, "Unhandled canal variable 0x%02X", variable);

	*available = false;
	return UINT_MAX;
}
/* virtual */ uint32 CanalScopeResolver::GetVariable(byte variable, uint32 parameter, bool *available) const
{
	switch (variable) {
		/* Height of tile */
		case 0x80: {
			int z = GetTileZ(this->tile);
			/* Return consistent height within locks */
			if (IsTileType(this->tile, MP_WATER) && IsLock(this->tile) && GetLockPart(this->tile) == LOCK_PART_UPPER) z--;
			return z;
		}

		/* Terrain type */
		case 0x81: return GetTerrainType(this->tile);

		/* Random data for river or canal tiles, otherwise zero */
		case 0x83: return IsTileType(this->tile, MP_WATER) ? GetWaterTileRandomBits(this->tile) : 0;
	}

	DEBUG(grf, 1, "Unhandled canal variable 0x%02X", variable);

	*available = false;
	return UINT_MAX;
}