Changeset - r5596:84985796bbd9
[Not reviewed]
master
0 10 0
belugas - 18 years ago 2007-01-11 02:05:13
belugas@openttd.org
(svn r8050) -Codechange: Rename map member extra to m6, since its usage has been widden.
Only doc landscape_grid.html has been updated, landscape.html will be done latter.
-CodeChange: Replace a direct access to m6 with SetTropicZone in InitializeLandscape, as it is the only part of m6 still untouched without the brute-forced m6=0
10 files changed with 69 insertions and 47 deletions:
0 comments (0 inline, 0 general)
docs/landscape_grid.html
Show inline comments
 
@@ -16,7 +16,7 @@
 
</head>
 
<body style="direction: ltr;">
 
<h3 style="font-weight: bold;">Landscape</h3>
 
<span style="font-weight: bold;"></span>Five attributes hold the information about a tile.
 
<span style="font-weight: bold;"></span>Six attributes hold the information about a tile.
 
This can be seen in the <a href="landscape.html">Landscape</a> document. This page tries to give an overview of used and free bits of
 
the array so you can quickly see what is used and what is not.
 
<ul>
 
@@ -32,22 +32,25 @@ the array so you can quickly see what is
 
  <li><span style="font-weight: bold;">m3</span> - 8 bits in size, is used for general storage</li>
 
  <li><span style="font-weight: bold;">m4</span> - 8 bits in size, is used for general storage</li>
 
  <li><span style="font-weight: bold;">m5</span> - 8 bits in size, is used for general storage</li>
 
  <li><span style="font-weight: bold;">m6</span> - 8 bits in size, special meaning : lower 2 bits only valid in tropic climate, upper 2 bits for bridges</li>
 
</ul>
 

	
 
<table align=center border="1" cellpadding="2" cellspacing="2">
 
  <tbody>
 
    <tr>
 
      <th colspan=2>class</th>
 
      <th>type_height (8)</th>
 
      <th>m1 (8)</th>
 
      <th>m2 (16)</th>
 
      <th>m3 (8)</th>
 
      <th>m4 (8)</th>
 
      <th>type_height (8)</th>
 
      <th>m5 (8)</th>
 
      <th>m6 (8)</th>
 
    </tr>
 
    <tr>
 
      <td colspan=2 class="caption">bits</td>
 
      <td class="bits">7654 3210</td>
 
      <td class="bits">7654 3210</td>
 
      <td class="bits">FEDC BA98 7654 3210</td>
 
      <td class="bits">7654 3210</td>
 
      <td class="bits">7654 3210</td>
 
@@ -58,129 +61,143 @@ the array so you can quickly see what is
 
      <td rowspan="2">0</td>
 
      <td class="caption">ground</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits"><span class="free">OOOO OOOO OOOO OOOO</span></td>
 
      <td class="bits"><span class="free">OOOO OOOO</span></td>
 
      <td class="bits">XXXX XX<span class="free">OO</span></td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XX<span class="free">OO OO</span>XX</td>
 
    </tr>
 
    <tr>
 
      <td class="caption">farmland</td>
 
      <td class="bits">-inherit-</td>
 
      <td class="bits">-inherit-</td>
 
      <td class="bits">XXXX XXXX XXXX XXXX</td>
 
      <td class="bits"><span class="free">OOOO</span> XXXX</td>
 
      <td class="bits">-inherit-</td>
 
      <td class="bits">-inherit-</td>
 
      <td class="bits"><span class="free">OOO</span>X XXXX</td>
 
      <td class="bits">XX<span class="free">OO OO</span>XX</td>
 
    </tr>
 
    <tr>
 
      <td rowspan=3>1</td>
 
      <td class="caption">rail</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits"><span class="free">OOOO OOOO</span> XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits"><span class="free">OOOO O</span>XXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XX<span class="free">OO OO</span>XX</td>
 
    </tr>
 
    <tr>
 
      <td class="caption">depot</td>
 
      <td class="bits">-inherit-</td>
 
      <td class="bits">-inherit-</td>
 
      <td class="bits"><span class="free">OOOO OOOO OOOO OOOO</span></td>
 
      <td class="bits"><span class="free">OOOO</span> XXXX</td>
 
      <td class="bits"><span class="free">OOOO</span> XXXX</td>
 
      <td class="bits">-inherit-</td>
 
      <td class="bits">XX<span class="free">OO O</span>XXX</td>
 
      <td class="bits">XX<span class="free">OO OO</span>XX</td>
 
    </tr>
 
    <tr>
 
      <td class="caption">waypoint</td>
 
      <td class="bits">-inherit-</td>
 
      <td class="bits">-inherit-</td>
 
      <td class="bits">XXXX XXXX XXXX XXXX</td>
 
      <td class="bits"><span class="free">OOOO</span> XXXX</td>
 
      <td class="bits"><span class="free">OOOO</span> XXXX</td>
 
      <td class="bits">-inherit-</td>
 
      <td class="bits">XX<span class="free">OO O</span>XXX</td>
 
      <td class="bits">XX<span class="free">OO OO</span>XX</td>
 
    </tr>
 
    <tr>
 
      <td rowspan=3>2</td>
 
      <td class="caption">road</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX XXXX XXXX</td>
 
      <td class="bits"><span class="free">OOOO OOOO</span></td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XX<span class="free">OO OO</span>XX</td>
 
    </tr>
 
    <tr>
 
      <td class="caption">level crossing</td>
 
      <td class="bits">-inherit-</td>
 
      <td class="bits">-inherit-</td>
 
      <td class="bits">-inherit-</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">-inherit-</td>
 
      <td class="bits">XXXX XX<span class="free">OO</span></td>
 
      <td class="bits">XX<span class="free">OO OO</span>XX</td>
 
    </tr>
 
    <tr>
 
      <td class="caption">road depot</td>
 
      <td class="bits">-inherit-</td>
 
      <td class="bits">-inherit-</td>
 
      <td class="bits"><span class="free">OOOO OOOO OOOO OOOO</span></td>
 
      <td class="bits"><span class="free">OOOO OOOO</span></td>
 
      <td class="bits">X<span class="free">OOO OOOO</span></td>
 
      <td class="bits">-inherit-</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XX<span class="free">OO OO</span>XX</td>
 
    </tr>
 
    <tr>
 
      <td>3</td>
 
      <td class="caption">town</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits"><span class="abuse">XXXX XXXX</span></td>
 
      <td class="bits">XXXX XXXX XXXX XXXX</td>
 
      <td class="bits">XX<span class="free">OO OOOO</span></td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">X<span class="free">O</span>XX XXXX</td>
 
      <td class="bits"><span class="free">OOOO OO</span>XX</td>
 
    </tr>
 
    <tr>
 
      <td>4</td>
 
      <td class="caption">trees</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits"><span class="free">OOOO OOOO</span> XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XX<span class="free">OO</span></td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XX<span class="free">OO O</span>XXX</td>
 
      <td class="bits"><span class="free">OOOO OO</span>XX</td>
 
    </tr>
 
    <tr>
 
      <td>5</td>
 
      <td class="caption">station</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits"><span class="free">OOOO OO</span>XX</td>
 
    </tr>
 
    <tr>
 
      <td>6</td>
 
      <td class="caption">water</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits"><span class="free">OOOO OOOO OOOO OOOO</span></td>
 
      <td class="bits"><span class="free">OOOO OOOO</span></td>
 
      <td class="bits"><span class="free">OOOO OOOO</span></td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits"><span class="free">OOOO OO</span>XX</td>
 
      <td class="bits">XX<span class="free">OO OO</span>XX</td>
 
    </tr>
 
    <tr>
 
      <td rowspan=3>8</td>
 
      <td class="caption">industry</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits"><span class="abuse">X</span><span class="free">OO</span><span class="abuse">X XXXX</span></td>
 
      <td class="bits">XXXX XXXX XXXX XXXX</td>
 
      <td class="bits"><span class="free">OOOO OOOO</span></td>
 
      <td class="bits"><span class="free">OOOO OOOO</span></td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits"><span class="free">OOOO OO</span>XX</td>
 
    </tr>
 
    <tr>
 
      <td>bubble/sugar/toffee, gold/copper/coal, oil wells, power station</td>
 
      <td>bubble/sugar/toffee,<BR>gold/copper/coal,<BR>oil wells, power station</td>
 
      <td class="bits">-inherit-</td>
 
      <td class="bits"><span class="abuse">X</span><span class="free">OOO OOOO</span></td>
 
      <td class="bits">-inherit-</td>
 
      <td class="bits">XXXX XXXX</td>
 
@@ -190,6 +207,7 @@ the array so you can quickly see what is
 
    </tr>
 
    <tr>
 
      <td>toy factory</td>
 
      <td class="bits">-inherit-</td>
 
      <td class="bits"><span class="abuse">X</span><span class="free">OOO OOOO</span></td>
 
      <td class="bits">-inherit-</td>
 
      <td class="bits">XXXX XXXX</td>
 
@@ -199,32 +217,35 @@ the array so you can quickly see what is
 
    </tr>
 
    <tr>
 
      <td rowspan=2>9</td>
 
      <td class="caption">tunnel</td>
 
      <td class="caption">tunnel entrance</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits"><span class="free">OOOO OOOO OOOO OOOO</span></td>
 
      <td class="bits"><span class="free">OOOO</span> XXXX</td>
 
      <td class="bits">X<span class="free">OOO OOOO</span></td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">X<span class="free">OOO</span> XXXX</td>
 
      <td class="bits">XX<span class="free">OO OO</span>XX</td>
 
    </tr>
 
    <tr>
 
      <td>bridge ramp</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits"><span class="free">OOOO OOOO</span> <span class="abuse">XXXX</span> <span class="free">OOOO</span></td>
 
      <td class="bits"><span class="free">OOOO</span> XXXX</td>
 
      <td class="bits">X<span class="free">OOO OOOO</span></td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">X<span class="free">OOO</span> XXXX</td>
 
      <td class="bits">XX<span class="free">OO OO</span>XX</td>
 
    </tr>
 
    <tr>
 
      <td>A</td>
 
      <td class="caption">various (HQ)</td>
 
      <td class="caption">unmovables</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits"><span class="free">OOOO OOOO OOOO OOOO</span></td>
 
      <td class="bits"><span class="free">OOOO OOOO</span></td>
 
      <td class="bits"><span class="free">OOOO OOOO</span></td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XXXX XXXX</td>
 
      <td class="bits">XX<span class="free">OO OO</span>XX</td>
 
    </tr>
 
  </tbody>
 
</table>
src/bridge_map.h
Show inline comments
 
@@ -41,7 +41,7 @@ static inline bool MayHaveBridgeAbove(Ti
 
static inline bool IsBridgeAbove(TileIndex t)
 
{
 
	assert(MayHaveBridgeAbove(t));
 
	return GB(_m[t].extra, 6, 2) != 0;
 
	return GB(_m[t].m6, 6, 2) != 0;
 
}
 

	
 

	
 
@@ -70,7 +70,7 @@ static inline DiagDirection GetBridgeRam
 
static inline Axis GetBridgeAxis(TileIndex t)
 
{
 
	assert(IsBridgeAbove(t));
 
	return (Axis)(GB(_m[t].extra, 6, 2) - 1);
 
	return (Axis)(GB(_m[t].m6, 6, 2) - 1);
 
}
 

	
 

	
 
@@ -121,7 +121,7 @@ uint GetBridgeFoundation(Slope tileh, Ax
 
static inline void ClearSingleBridgeMiddle(TileIndex t, Axis a)
 
{
 
	assert(MayHaveBridgeAbove(t));
 
	CLRBIT(_m[t].extra, 6 + a);
 
	CLRBIT(_m[t].m6, 6 + a);
 
}
 

	
 

	
 
@@ -134,7 +134,7 @@ static inline void ClearBridgeMiddle(Til
 
static inline void SetBridgeMiddle(TileIndex t, Axis a)
 
{
 
	assert(MayHaveBridgeAbove(t));
 
	SETBIT(_m[t].extra, 6 + a);
 
	SETBIT(_m[t].m6, 6 + a);
 
}
 

	
 

	
src/clear_map.h
Show inline comments
 
@@ -126,7 +126,7 @@ static inline void MakeClear(TileIndex t
 
{
 
	/* If this is a non-bridgeable tile, clear the bridge bits while the rest
 
	 * of the tile information is still here. */
 
	if (!MayHaveBridgeAbove(t)) SB(_m[t].extra, 6, 2, 0);
 
	if (!MayHaveBridgeAbove(t)) SB(_m[t].m6, 6, 2, 0);
 

	
 
	SetTileType(t, MP_CLEAR);
 
	SetTileOwner(t, OWNER_NONE);
 
@@ -134,7 +134,7 @@ static inline void MakeClear(TileIndex t
 
	_m[t].m3 = 0;
 
	_m[t].m4 = 0 << 5 | 0 << 2;
 
	SetClearGroundDensity(t, g, density);
 
	SB(_m[t].extra, 2, 4, 0);
 
	SB(_m[t].m6, 2, 4, 0); ///< Clear the rest of m6, bits 2 to 5
 
}
 

	
 

	
src/landscape.cpp
Show inline comments
 
@@ -415,7 +415,7 @@ void InitializeLandscape(void)
 
		for (x = 0; x < maxx; x++) {
 
			MakeClear(sizex * y + x, CLEAR_GRASS, 3);
 
			SetTileHeight(sizex * y + x, 0);
 
			_m[sizex * y + x].extra = 0;
 
			SetTropicZone(sizex * y + x, TROPICZONE_INVALID);
 
			ClearBridgeMiddle(sizex * y + x);
 
		}
 
		MakeVoid(sizex * y + x);
src/map.h
Show inline comments
 
@@ -23,7 +23,7 @@ typedef struct Tile {
 
	byte m3;
 
	byte m4;
 
	byte m5;
 
	byte extra;
 
	byte m6;
 
} Tile;
 

	
 
extern Tile* _m;
src/misc.cpp
Show inline comments
 
@@ -546,8 +546,9 @@ static void Save_MAP5(void)
 
	}
 
}
 

	
 
static void Load_MAPE(void)
 
static void Load_MAP6(void)
 
{
 
	/* Still available for loading old games */
 
	uint size = MapSize();
 
	uint i;
 

	
 
@@ -558,10 +559,10 @@ static void Load_MAPE(void)
 

	
 
			SlArray(buf, lengthof(buf), SLE_UINT8);
 
			for (j = 0; j != lengthof(buf); j++) {
 
				_m[i++].extra = GB(buf[j], 0, 2);
 
				_m[i++].extra = GB(buf[j], 2, 2);
 
				_m[i++].extra = GB(buf[j], 4, 2);
 
				_m[i++].extra = GB(buf[j], 6, 2);
 
				_m[i++].m6 = GB(buf[j], 0, 2);
 
				_m[i++].m6 = GB(buf[j], 2, 2);
 
				_m[i++].m6 = GB(buf[j], 4, 2);
 
				_m[i++].m6 = GB(buf[j], 6, 2);
 
			}
 
		}
 
	} else {
 
@@ -570,12 +571,12 @@ static void Load_MAPE(void)
 
			uint j;
 

	
 
			SlArray(buf, lengthof(buf), SLE_UINT8);
 
			for (j = 0; j != lengthof(buf); j++) _m[i++].extra = buf[j];
 
			for (j = 0; j != lengthof(buf); j++) _m[i++].m6 = buf[j];
 
		}
 
	}
 
}
 

	
 
static void Save_MAPE(void)
 
static void Save_MAP6(void)
 
{
 
	uint size = MapSize();
 
	uint i;
 
@@ -585,7 +586,7 @@ static void Save_MAPE(void)
 
		uint8 buf[4096];
 
		uint j;
 

	
 
		for (j = 0; j != lengthof(buf); j++) buf[j] = _m[i++].extra;
 
		for (j = 0; j != lengthof(buf); j++) buf[j] = _m[i++].m6;
 
		SlArray(buf, lengthof(buf), SLE_UINT8);
 
	}
 
}
 
@@ -625,7 +626,7 @@ extern const ChunkHandler _misc_chunk_ha
 
	{ 'M3LO', Save_MAP3,     Load_MAP3,     CH_RIFF },
 
	{ 'M3HI', Save_MAP4,     Load_MAP4,     CH_RIFF },
 
	{ 'MAP5', Save_MAP5,     Load_MAP5,     CH_RIFF },
 
	{ 'MAPE', Save_MAPE,     Load_MAPE,     CH_RIFF },
 
	{ 'MAPE', Save_MAP6,     Load_MAP6,     CH_RIFF },
 

	
 
	{ 'NAME', Save_NAME,     Load_NAME,     CH_ARRAY},
 
	{ 'DATE', SaveLoad_DATE, SaveLoad_DATE, CH_RIFF},
src/misc_gui.cpp
Show inline comments
 
@@ -183,7 +183,7 @@ static void Place_LandInfo(TileIndex til
 
	DEBUG(misc, LANDINFOD_LEVEL, "m3           = %#x", _m[tile].m3);
 
	DEBUG(misc, LANDINFOD_LEVEL, "m4           = %#x", _m[tile].m4);
 
	DEBUG(misc, LANDINFOD_LEVEL, "m5           = %#x", _m[tile].m5);
 
	DEBUG(misc, LANDINFOD_LEVEL, "extra        = %#x", _m[tile].extra);
 
	DEBUG(misc, LANDINFOD_LEVEL, "m6           = %#x", _m[tile].m6);
 
#undef LANDINFOD_LEVEL
 
}
 

	
src/oldloader.cpp
Show inline comments
 
@@ -1344,10 +1344,10 @@ static bool LoadOldMapPart1(LoadgameStat
 
	}
 
	for (i = 0; i < OLD_MAP_SIZE / 4; i++) {
 
		byte b = ReadByte(ls);
 
		_m[i * 4 + 0].extra = GB(b, 0, 2);
 
		_m[i * 4 + 1].extra = GB(b, 2, 2);
 
		_m[i * 4 + 2].extra = GB(b, 4, 2);
 
		_m[i * 4 + 3].extra = GB(b, 6, 2);
 
		_m[i * 4 + 0].m6 = GB(b, 0, 2);
 
		_m[i * 4 + 1].m6 = GB(b, 2, 2);
 
		_m[i * 4 + 2].m6 = GB(b, 4, 2);
 
		_m[i * 4 + 3].m6 = GB(b, 6, 2);
 
	}
 

	
 
	return !ls->failed;
src/tile.h
Show inline comments
 
@@ -105,7 +105,7 @@ static inline bool IsTileOwner(TileIndex
 
static inline void SetTropicZone(TileIndex tile, TropicZone type)
 
{
 
	assert(tile < MapSize());
 
	SB(_m[tile].extra, 0, 2, type);
 
	SB(_m[tile].m6, 0, 2, type);
 
}
 

	
 
/**
 
@@ -117,6 +117,6 @@ static inline void SetTropicZone(TileInd
 
static inline TropicZone GetTropicZone(TileIndex tile)
 
{
 
	assert(tile < MapSize());
 
	return (TropicZone)GB(_m[tile].extra, 0, 2);
 
	return (TropicZone)GB(_m[tile].m6, 0, 2);
 
}
 
#endif /* TILE_H */
src/void_map.h
Show inline comments
 
@@ -12,7 +12,7 @@ static inline void MakeVoid(TileIndex t)
 
	_m[t].m3 = 0;
 
	_m[t].m4 = 0;
 
	_m[t].m5 = 0;
 
	_m[t].extra = 0;
 
	_m[t].m6 = 0;
 
}
 

	
 
#endif /* VOID_MAP_H */
0 comments (0 inline, 0 general)