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Code Issues

(svn r2738) Small bit fiddling cleanup

release/0.4.5
tron 2005-07-28 19:18:27 +00:00
parent ff61e34d6c
commit 64ac1a6414
3 changed files with 49 additions and 32 deletions
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77
clear_cmd.c
View File

@ -415,23 +415,41 @@ int32 CmdPurchaseLandArea(int x, int y, uint32 flags, uint32 p1, uint32 p2)
static int32 ClearTile_Clear(TileIndex tile, byte flags) static int32 ClearTile_Clear(TileIndex tile, byte flags)
{ {
static const int32 * _clear_price_table[] = { static const int32 null = 0;
NULL, static const int32* clear_price_table[] = {
&_price.clear_1, &_price.clear_1,&_price.clear_1, &null,
&_price.purchase_land,&_price.purchase_land,&_price.purchase_land,&_price.purchase_land, &_price.clear_1,
&_price.clear_2,&_price.clear_2,&_price.clear_2,&_price.clear_2, &_price.clear_1,
&_price.clear_3,&_price.clear_3,&_price.clear_3,&_price.clear_3, &_price.clear_1,
&_price.purchase_land,&_price.purchase_land,&_price.purchase_land,&_price.purchase_land, &_price.purchase_land,
&_price.purchase_land,&_price.purchase_land,&_price.purchase_land,&_price.purchase_land, &_price.purchase_land,
&_price.clear_2,&_price.clear_2,&_price.clear_2,&_price.clear_2, &_price.purchase_land,
&_price.purchase_land,
&_price.clear_2,
&_price.clear_2,
&_price.clear_2,
&_price.clear_2,
&_price.clear_3,
&_price.clear_3,
&_price.clear_3,
&_price.clear_3,
&_price.purchase_land,
&_price.purchase_land,
&_price.purchase_land,
&_price.purchase_land,
&_price.purchase_land,
&_price.purchase_land,
&_price.purchase_land,
&_price.purchase_land,
&_price.clear_2,
&_price.clear_2,
&_price.clear_2,
&_price.clear_2,
}; };
const int32 *price = _clear_price_table[_m[tile].m5 & 0x1F]; const int32 *price = clear_price_table[GB(_m[tile].m5, 0, 5)];
if (flags & DC_EXEC) if (flags & DC_EXEC) DoClearSquare(tile);
DoClearSquare(tile);
if (price == NULL)
return 0;
return *price; return *price;
} }
@ -479,8 +497,9 @@ void DrawHillyLandTile(TileInfo *ti)
} }
} }
void DrawClearLandFence(TileInfo *ti, byte img) void DrawClearLandFence(const TileInfo *ti)
{ {
byte m4 = _m[ti->tile].m4;
byte z = ti->z; byte z = ti->z;
if (ti->tileh & 2) { if (ti->tileh & 2) {
@ -489,21 +508,20 @@ void DrawClearLandFence(TileInfo *ti, byte img)
z += 8; z += 8;
} }
if (img & 0x38) { if (GB(m4, 5, 3) != 0) {
DrawGroundSpriteAt(_clear_land_fence_sprites_1[GB(img, 3, 3) - 1] + _fence_mod_by_tileh[ti->tileh], ti->x, ti->y, z); DrawGroundSpriteAt(_clear_land_fence_sprites_1[GB(m4, 5, 3) - 1] + _fence_mod_by_tileh[ti->tileh], ti->x, ti->y, z);
} }
if (img & 0x7) { if (GB(m4, 2, 3) != 0) {
DrawGroundSpriteAt(_clear_land_fence_sprites_1[GB(img, 0, 3) - 1] + _fence_mod_by_tileh_2[ti->tileh], ti->x, ti->y, z); DrawGroundSpriteAt(_clear_land_fence_sprites_1[GB(m4, 2, 3) - 1] + _fence_mod_by_tileh_2[ti->tileh], ti->x, ti->y, z);
} }
} }
static void DrawTile_Clear(TileInfo *ti) static void DrawTile_Clear(TileInfo *ti)
{ {
switch (GB(ti->map5, 2, 3)) {
switch((ti->map5 & (7<<2)) >> 2) {
case 0: case 0:
DrawClearLandTile(ti, (ti->map5 & 3)); DrawClearLandTile(ti, GB(ti->map5, 0, 2));
break; break;
case 1: case 1:
@ -515,19 +533,19 @@ static void DrawTile_Clear(TileInfo *ti)
break; break;
case 3: case 3:
DrawGroundSprite( _clear_land_sprites_1[_m[ti->tile].m3&0xF] + _tileh_to_sprite[ti->tileh]); DrawGroundSprite(_clear_land_sprites_1[GB(_m[ti->tile].m3, 0, 4)] + _tileh_to_sprite[ti->tileh]);
break; break;
case 4: case 4:
DrawGroundSprite( _clear_land_sprites_2[ti->map5&3] + _tileh_to_sprite[ti->tileh]); DrawGroundSprite(_clear_land_sprites_2[GB(ti->map5, 0, 2)] + _tileh_to_sprite[ti->tileh]);
break; break;
case 5: case 5:
DrawGroundSprite( _clear_land_sprites_3[ti->map5&3] + _tileh_to_sprite[ti->tileh]); DrawGroundSprite(_clear_land_sprites_3[GB(ti->map5, 0, 2)] + _tileh_to_sprite[ti->tileh]);
break; break;
} }
DrawClearLandFence(ti, _m[ti->tile].m4 >> 2); DrawClearLandFence(ti);
} }
static uint GetSlopeZ_Clear(TileInfo *ti) static uint GetSlopeZ_Clear(TileInfo *ti)
@ -814,7 +832,7 @@ static uint32 GetTileTrackStatus_Clear(TileIndex tile, TransportType mode)
return 0; return 0;
} }
static const StringID _clear_land_str[4+8-1] = { static const StringID _clear_land_str[] = {
STR_080B_ROUGH_LAND, STR_080B_ROUGH_LAND,
STR_080A_ROCKS, STR_080A_ROCKS,
STR_080E_FIELDS, STR_080E_FIELDS,
@ -830,9 +848,8 @@ static const StringID _clear_land_str[4+8-1] = {
static void GetTileDesc_Clear(TileIndex tile, TileDesc *td) static void GetTileDesc_Clear(TileIndex tile, TileDesc *td)
{ {
int i = (_m[tile].m5>>2) & 7; uint i = GB(_m[tile].m5, 2, 3);
if (i == 0) if (i == 0) i = GB(_m[tile].m5, 0, 2) + 8;
i = (_m[tile].m5 & 3) + 8;
td->str = _clear_land_str[i - 1]; td->str = _clear_land_str[i - 1];
td->owner = GetTileOwner(tile); td->owner = GetTileOwner(tile);
} }

2
functions.h
View File

@ -52,7 +52,7 @@ static inline Point RemapCoords2(int x, int y)
/* clear_land.c */ /* clear_land.c */
void DrawHillyLandTile(TileInfo *ti); void DrawHillyLandTile(TileInfo *ti);
void DrawClearLandTile(TileInfo *ti, byte set); void DrawClearLandTile(TileInfo *ti, byte set);
void DrawClearLandFence(TileInfo *ti, byte img); void DrawClearLandFence(const TileInfo *ti);
void TileLoopClearHelper(TileIndex tile); void TileLoopClearHelper(TileIndex tile);
/* station_land.c */ /* station_land.c */

2
tree_cmd.c
View File

@ -264,7 +264,7 @@ static void DrawTile_Trees(TileInfo *ti)
DrawHillyLandTile(ti); DrawHillyLandTile(ti);
} }
DrawClearLandFence(ti, _m[ti->tile].m4 >> 2); DrawClearLandFence(ti);
z = ti->z; z = ti->z;
if (ti->tileh != 0) { if (ti->tileh != 0) {