Files @ r7377:722cd70012ed
Branch filter:

Location: cpp/openttd-patchpack/source/src/tree_map.h

rubidium
(svn r10746) -Codechange: add a generic superclass for almost all pool items so we do not have to duplicate code for each of the pool item classes and use it for the station and roadstop classes.
/* $Id$ */

/** @file tree_map.h */

#ifndef TREE_MAP_H
#define TREE_MAP_H

#include "macros.h"

enum TreeType {
	TREE_INVALID      = -1,
	TREE_TEMPERATE    = 0,
	TREE_SUB_ARCTIC   = 12,
	TREE_RAINFOREST   = 20,
	TREE_CACTUS       = 27,
	TREE_SUB_TROPICAL = 28,
	TREE_TOYLAND      = 32
};

enum {
	TREE_COUNT_TEMPERATE    = TREE_SUB_ARCTIC   - TREE_TEMPERATE,
	TREE_COUNT_SUB_ARCTIC   = TREE_RAINFOREST   - TREE_SUB_ARCTIC,
	TREE_COUNT_RAINFOREST   = TREE_CACTUS       - TREE_RAINFOREST,
	TREE_COUNT_SUB_TROPICAL = TREE_SUB_TROPICAL - TREE_CACTUS,
	TREE_COUNT_TOYLAND      = 9
};

/* ground type, m2 bits 4...5
 * valid densities (bits 6...7) in comments after the enum */
enum TreeGround {
	TREE_GROUND_GRASS       = 0, ///< 0
	TREE_GROUND_ROUGH       = 1, ///< 0
	TREE_GROUND_SNOW_DESERT = 2  ///< 0-3 for snow, 3 for desert
};


static inline TreeType GetTreeType(TileIndex t)
{
	assert(IsTileType(t, MP_TREES));
	return (TreeType)_m[t].m3;
}


static inline TreeGround GetTreeGround(TileIndex t)
{
	assert(IsTileType(t, MP_TREES));
	return (TreeGround)GB(_m[t].m2, 4, 2);
}


static inline uint GetTreeDensity(TileIndex t)
{
	assert(IsTileType(t, MP_TREES));
	return GB(_m[t].m2, 6, 2);
}


static inline void SetTreeGroundDensity(TileIndex t, TreeGround g, uint d)
{
	assert(IsTileType(t, MP_TREES)); // XXX incomplete
	SB(_m[t].m2, 4, 2, g);
	SB(_m[t].m2, 6, 2, d);
}


static inline uint GetTreeCount(TileIndex t)
{
	assert(IsTileType(t, MP_TREES));
	return GB(_m[t].m5, 6, 2);
}

static inline void AddTreeCount(TileIndex t, int c)
{
	assert(IsTileType(t, MP_TREES)); // XXX incomplete
	_m[t].m5 += c << 6;
}

static inline void SetTreeCount(TileIndex t, uint c)
{
	assert(IsTileType(t, MP_TREES)); // XXX incomplete
	SB(_m[t].m5, 6, 2, c);
}


static inline uint GetTreeGrowth(TileIndex t)
{
	assert(IsTileType(t, MP_TREES));
	return GB(_m[t].m5, 0, 3);
}

static inline void AddTreeGrowth(TileIndex t, int a)
{
	assert(IsTileType(t, MP_TREES)); // XXX incomplete
	_m[t].m5 += a;
}

static inline void SetTreeGrowth(TileIndex t, uint g)
{
	assert(IsTileType(t, MP_TREES)); // XXX incomplete
	SB(_m[t].m5, 0, 3, g);
}


static inline uint GetTreeCounter(TileIndex t)
{
	assert(IsTileType(t, MP_TREES));
	return GB(_m[t].m2, 0, 4);
}

static inline void AddTreeCounter(TileIndex t, int a)
{
	assert(IsTileType(t, MP_TREES)); // XXX incomplete
	_m[t].m2 += a;
}

static inline void SetTreeCounter(TileIndex t, uint c)
{
	assert(IsTileType(t, MP_TREES)); // XXX incomplete
	SB(_m[t].m2, 0, 4, c);
}


static inline void MakeTree(TileIndex t, TreeType type, uint count, uint growth, TreeGround ground, uint density)
{
	SetTileType(t, MP_TREES);
	SetTileOwner(t, OWNER_NONE);
	_m[t].m2 = density << 6 | ground << 4 | 0;
	_m[t].m3 = type;
	_m[t].m4 = 0 << 5 | 0 << 2;
	_m[t].m5 = count << 6 | growth;
}

#endif /* TREE_MAP_H */