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clear_map.h
author bjarni
Thu, 05 Oct 2006 12:59:28 +0000
changeset 4739 e626ef1b522e
parent 4666 172a0cdf28a6
permissions -rw-r--r--
(svn r6651) -Coding feature: added the windowevent WE_INVALIDATE_DATA
This gives the ability to invalidate some window data and recalculate as needed instead of doing it for each WE_PAINT

This event is called right away when using InvalidateWindowData(), so it may be a good idea to set a bool or similar in the window
or similar and then act on that bool in WE_PAINT instead of doing a lot of stuff in WE_INVALIDATE_DATA as it might be called more than once before WE_PAINT is called

InvalidateWindowData() will not automatically repaint the window, so if you want to repaint it as well, you need to mark it dirty as well.

Made the depot windows use WE_INVALIDATE_DATA to set when to generate the engine and wagon lists instead of at each redraw
It makes no sense to regenerate the list when say using the scrollbar if we know that no vehicle have entered or left the list

NOTE: currently there is a piece of code to generate the list when it's not needed and compare it to the stored list and assert if they mismatch
This check is somewhat slow and kills the whole idea of WE_INVALIDATE_DATA, so it's a short lived one to verify that InvalidateWindowData() is used everywhere where it's needed 
/* $Id$ */

#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 /* CLEAR_MAP_H */
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