Files @ r7939:523d421f9d0c
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Location: cpp/openttd-patchpack/source/src/water_map.h

egladil
(svn r11492) -Codechange: [OSX] Split the cocoa video driver into several files. The reason for this is that the fullscreen and windowed mode api are separate from each other in OS X and thus the driver actual is two drivers in one. This split is to make the code more readable and to prepare for replacing the Quickdraw windowed mode code which uses apis deprecated as of OS X 10.5 (and maybe earlier).
/* $Id$ */

/** @file water_map.h */

#ifndef WATER_MAP_H
#define WATER_MAP_H

enum WaterTileType {
	WATER_TILE_CLEAR,
	WATER_TILE_COAST,
	WATER_TILE_LOCK,
	WATER_TILE_DEPOT,
};

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

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

static inline WaterTileType GetWaterTileType(TileIndex t)
{
	assert(IsTileType(t, MP_WATER));

	if (_m[t].m5 == 0) return WATER_TILE_CLEAR;
	if (_m[t].m5 == 1) return WATER_TILE_COAST;
	if (IS_INT_INSIDE(_m[t].m5, LOCK_MIDDLE, LOCK_END)) return WATER_TILE_LOCK;

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

/** IsWater return true if any type of clear water like ocean, river, canal */
static inline bool IsWater(TileIndex t)
{
	return GetWaterTileType(t) == WATER_TILE_CLEAR;
}

static inline bool IsSea(TileIndex t)
{
	if (GetWaterTileType(t) != WATER_TILE_CLEAR) return false;
	if (!IsTileOwner(t, OWNER_WATER)) return false; // 'Human' built water = canal, not sea
	return true;
}

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

static inline bool IsCanal(TileIndex t)
{
	return GetWaterTileType(t) == WATER_TILE_CLEAR && GetTileOwner(t) != OWNER_WATER;
}

static inline bool IsWaterTile(TileIndex t)
{
	return IsTileType(t, MP_WATER) && IsWater(t);
}

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_TILE_LOCK || GetWaterTileType(t) == WATER_TILE_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)
{
	assert(o != OWNER_WATER);
	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 /* WATER_MAP_H */