Files @ r6071:3dcae6ddc2c7
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Location: cpp/openttd-patchpack/source/src/tile.h

tron
(svn r8802) -Fix

-Fix: When inserting an order for a ship while checking the distance between the new order and the order it is inserted after adhere the order types to determine the correct type of destination (i.e. station or depot)
Also do a better job in determining the preceding order
NOTE: 0.5 candidate
/* $Id$ */

#ifndef TILE_H
#define TILE_H

#include "macros.h"
#include "openttd.h"
#include "map.h"
#include "slope.h"

typedef enum TileTypes {
	MP_CLEAR,
	MP_RAILWAY,
	MP_STREET,
	MP_HOUSE,
	MP_TREES,
	MP_STATION,
	MP_WATER,
	MP_VOID, // invisible tiles at the SW and SE border
	MP_INDUSTRY,
	MP_TUNNELBRIDGE,
	MP_UNMOVABLE,
} TileType;

typedef enum TropicZones {
	TROPICZONE_INVALID    = 0,
	TROPICZONE_DESERT     = 1,
	TROPICZONE_RAINFOREST = 2,
} TropicZone;

Slope GetTileSlope(TileIndex tile, uint *h);
uint GetTileZ(TileIndex tile);
uint GetTileMaxZ(TileIndex tile);

static inline uint TileHeight(TileIndex tile)
{
	assert(tile < MapSize());
	return GB(_m[tile].type_height, 0, 4);
}

static inline void SetTileHeight(TileIndex tile, uint height)
{
	assert(tile < MapSize());
	assert(height < 16);
	SB(_m[tile].type_height, 0, 4, height);
}

static inline uint TilePixelHeight(TileIndex tile)
{
	return TileHeight(tile) * TILE_HEIGHT;
}

static inline TileType GetTileType(TileIndex tile)
{
	assert(tile < MapSize());
	return (TileType)GB(_m[tile].type_height, 4, 4);
}

static inline void SetTileType(TileIndex tile, TileType type)
{
	assert(tile < MapSize());
	/* VOID tiles (and no others) are exactly allowed at the lower left and right
	 * edges of the map */
	assert((TileX(tile) == MapMaxX() || TileY(tile) == MapMaxY()) == (type == MP_VOID));
	SB(_m[tile].type_height, 4, 4, type);
}

static inline bool IsTileType(TileIndex tile, TileType type)
{
	return GetTileType(tile) == type;
}


static inline Owner GetTileOwner(TileIndex tile)
{
	assert(tile < MapSize());
	assert(!IsTileType(tile, MP_HOUSE));
	assert(!IsTileType(tile, MP_VOID));
	assert(!IsTileType(tile, MP_INDUSTRY));

	return (Owner)_m[tile].m1;
}

static inline void SetTileOwner(TileIndex tile, Owner owner)
{
	assert(tile < MapSize());
	assert(!IsTileType(tile, MP_HOUSE));
	assert(!IsTileType(tile, MP_VOID));
	assert(!IsTileType(tile, MP_INDUSTRY));

	_m[tile].m1 = owner;
}

static inline bool IsTileOwner(TileIndex tile, Owner owner)
{
	return GetTileOwner(tile) == owner;
}

/**
 * Set the tropic zone
 * @param tile the tile to set the zone of
 * @param type the new type
 * @pre assert(tile < MapSize());
 */
static inline void SetTropicZone(TileIndex tile, TropicZone type)
{
	assert(tile < MapSize());
	SB(_m[tile].m6, 0, 2, type);
}

/**
 * Get the tropic zone
 * @param tile the tile to get the zone of
 * @pre assert(tile < MapSize());
 * @return the zone type
 */
static inline TropicZone GetTropicZone(TileIndex tile)
{
	assert(tile < MapSize());
	return (TropicZone)GB(_m[tile].m6, 0, 2);
}
#endif /* TILE_H */