Files @ r4603:3b159d0db197
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Location: cpp/openttd-patchpack/source/clear_map.h

peter1138
(svn r6455) - Feature: Add 2cc (two company colours) livery schemes. This replaces the original colour selection window and bumps the saveload version. Liveries are supported for all vehicles, not just those with 2cc support. Thanks to lakie for GUI inspiration.
/* $Id$ */

#ifndef CLEAR_MAP_H
#define CLEAR_MAP_H

#include "macros.h"
#include "tile.h"

/* ground type, m5 bits 2...4
 * valid densities (bits 0...1) in comments after the enum
 */
typedef enum ClearGround {
	CLEAR_GRASS  = 0, // 0-3
	CLEAR_ROUGH  = 1, // 3
	CLEAR_ROCKS  = 2, // 3
	CLEAR_FIELDS = 3, // 3
	CLEAR_SNOW   = 4, // 0-3
	CLEAR_DESERT = 5  // 1,3
} ClearGround;


static inline ClearGround GetClearGround(TileIndex t)
{
	assert(IsTileType(t, MP_CLEAR));
	return GB(_m[t].m5, 2, 3);
}

static inline bool IsClearGround(TileIndex t, ClearGround ct)
{
	return GetClearGround(t) == ct;
}


static inline uint GetClearDensity(TileIndex t)
{
	assert(IsTileType(t, MP_CLEAR));
	return GB(_m[t].m5, 0, 2);
}

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


static inline uint GetClearCounter(TileIndex t)
{
	assert(IsTileType(t, MP_CLEAR));
	return GB(_m[t].m5, 5, 3);
}

static inline void AddClearCounter(TileIndex t, int c)
{
	assert(IsTileType(t, MP_CLEAR)); // XXX incomplete
	_m[t].m5 += c << 5;
}

static inline void SetClearCounter(TileIndex t, uint c)
{
	assert(IsTileType(t, MP_CLEAR)); // XXX incomplete
	SB(_m[t].m5, 5, 3, c);
}


/* Sets type and density in one go, also sets the counter to 0 */
static inline void SetClearGroundDensity(TileIndex t, ClearGround type, uint density)
{
	assert(IsTileType(t, MP_CLEAR)); // XXX incomplete
	_m[t].m5 = 0 << 5 | type << 2 | density;
}


static inline uint GetFieldType(TileIndex t)
{
	assert(GetClearGround(t) == CLEAR_FIELDS);
	return GB(_m[t].m3, 0, 4);
}

static inline void SetFieldType(TileIndex t, uint f)
{
	assert(GetClearGround(t) == CLEAR_FIELDS); // XXX incomplete
	SB(_m[t].m3, 0, 4, f);
}

static inline uint16 GetIndustryIndexOfField(TileIndex t)
{
	assert(GetClearGround(t) == CLEAR_FIELDS);
	return _m[t].m2;
}

static inline void SetIndustryIndexOfField(TileIndex t, uint16 i)
{
	assert(GetClearGround(t) == CLEAR_FIELDS);
	_m[t].m2 = i;
}

/* Is used by tree tiles, too */
static inline uint GetFenceSE(TileIndex t)
{
	assert(IsTileType(t, MP_CLEAR) || IsTileType(t, MP_TREES));
	return GB(_m[t].m4, 2, 3);
}

static inline void SetFenceSE(TileIndex t, uint h)
{
	assert(IsTileType(t, MP_CLEAR) || IsTileType(t, MP_TREES)); // XXX incomplete
	SB(_m[t].m4, 2, 3, h);
}

static inline uint GetFenceSW(TileIndex t)
{
	assert(IsTileType(t, MP_CLEAR) || IsTileType(t, MP_TREES));
	return GB(_m[t].m4, 5, 3);
}

static inline void SetFenceSW(TileIndex t, uint h)
{
	assert(IsTileType(t, MP_CLEAR) || IsTileType(t, MP_TREES)); // XXX incomplete
	SB(_m[t].m4, 5, 3, h);
}


static inline void MakeClear(TileIndex t, ClearGround g, uint density)
{
	SetTileType(t, MP_CLEAR);
	SetTileOwner(t, OWNER_NONE);
	_m[t].m2 = 0;
	_m[t].m3 = 0;
	_m[t].m4 = 0 << 5 | 0 << 2;
	SetClearGroundDensity(t, g, density);
}


static inline void MakeField(TileIndex t, uint field_type, uint16 industry)
{
	SetTileType(t, MP_CLEAR);
	SetTileOwner(t, OWNER_NONE);
	_m[t].m2 = industry;
	_m[t].m3 = field_type;
	_m[t].m4 = 0 << 5 | 0 << 2;
	SetClearGroundDensity(t, CLEAR_FIELDS, 3);
}

#endif