Files @ r4603:3b159d0db197
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Location: cpp/openttd-patchpack/source/water_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 WATER_MAP_H
#define WATER_MAP_H

typedef enum WaterTileType {
	WATER_CLEAR,
	WATER_COAST,
	WATER_LOCK,
	WATER_DEPOT,
} WaterTileType;

typedef enum DepotPart {
	DEPOT_NORTH = 0x80,
	DEPOT_SOUTH = 0x81,
	DEPOT_END   = 0x84,
} DepotPart;

typedef enum LockPart {
	LOCK_MIDDLE = 0x10,
	LOCK_LOWER  = 0x14,
	LOCK_UPPER  = 0x18,
	LOCK_END    = 0x1C
} LockPart;

static inline WaterTileType GetWaterTileType(TileIndex t)
{
	if (_m[t].m5 == 0) return WATER_CLEAR;
	if (_m[t].m5 == 1) return WATER_COAST;
	if (IS_INT_INSIDE(_m[t].m5, LOCK_MIDDLE, LOCK_END)) return WATER_LOCK;

	assert(IS_INT_INSIDE(_m[t].m5, DEPOT_NORTH, DEPOT_END));
	return WATER_DEPOT;
}

static inline bool IsWater(TileIndex t)
{
	return GetWaterTileType(t) == WATER_CLEAR;
}

static inline bool IsCoast(TileIndex t)
{
	return GetWaterTileType(t) == WATER_COAST;
}

static inline bool IsClearWaterTile(TileIndex t)
{
	return IsTileType(t, MP_WATER) && IsWater(t) && GetTileSlope(t, NULL) == SLOPE_FLAT;
}

static inline TileIndex GetOtherShipDepotTile(TileIndex t)
{
	return t + (HASBIT(_m[t].m5, 0) ? -1 : 1) * (HASBIT(_m[t].m5, 1) ? TileDiffXY(0, 1) : TileDiffXY(1, 0));
}

static inline TileIndex IsShipDepot(TileIndex t)
{
	return IS_INT_INSIDE(_m[t].m5, DEPOT_NORTH, DEPOT_END);
}

static inline Axis GetShipDepotAxis(TileIndex t)
{
	return (Axis)GB(_m[t].m5, 1, 1);
}

static inline DiagDirection GetShipDepotDirection(TileIndex t)
{
	return XYNSToDiagDir(GetShipDepotAxis(t), GB(_m[t].m5, 0, 1));
}

static inline DiagDirection GetLockDirection(TileIndex t)
{
	return (DiagDirection)GB(_m[t].m5, 0, 2);
}

static inline byte GetSection(TileIndex t)
{
	assert(GetWaterTileType(t) == WATER_LOCK || GetWaterTileType(t) == WATER_DEPOT);
	return GB(_m[t].m5, 0, 4);
}


static inline void MakeWater(TileIndex t)
{
	SetTileType(t, MP_WATER);
	SetTileOwner(t, OWNER_WATER);
	_m[t].m2 = 0;
	_m[t].m3 = 0;
	_m[t].m4 = 0;
	_m[t].m5 = 0;
}

static inline void MakeShore(TileIndex t)
{
	SetTileType(t, MP_WATER);
	SetTileOwner(t, OWNER_WATER);
	_m[t].m2 = 0;
	_m[t].m3 = 0;
	_m[t].m4 = 0;
	_m[t].m5 = 1;
}

static inline void MakeCanal(TileIndex t, Owner o)
{
	SetTileType(t, MP_WATER);
	SetTileOwner(t, o);
	_m[t].m2 = 0;
	_m[t].m3 = 0;
	_m[t].m4 = 0;
	_m[t].m5 = 0;
}

static inline void MakeShipDepot(TileIndex t, Owner o, DepotPart base, Axis a)
{
	SetTileType(t, MP_WATER);
	SetTileOwner(t, o);
	_m[t].m2 = 0;
	_m[t].m3 = 0;
	_m[t].m4 = 0;
	_m[t].m5 = base + a * 2;
}

static inline void MakeLockTile(TileIndex t, Owner o, byte section)
{
	SetTileType(t, MP_WATER);
	SetTileOwner(t, o);
	_m[t].m2 = 0;
	_m[t].m3 = 0;
	_m[t].m4 = 0;
	_m[t].m5 = section;
}

static inline void MakeLock(TileIndex t, Owner o, DiagDirection d)
{
	TileIndexDiff delta = TileOffsByDiagDir(d);

	MakeLockTile(t, o, LOCK_MIDDLE + d);
	MakeLockTile(t - delta, o, LOCK_LOWER + d);
	MakeLockTile(t + delta, o, LOCK_UPPER + d);
}

#endif