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(svn r12074) -Cleanup: use C++ variable scope and declaration in DrawTile_Trees()

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smatz 2008-02-06 23:08:04 +00:00
parent b1ffae96ce
commit de489f338a
1 changed files with 37 additions and 48 deletions
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85
src/tree_cmd.cpp
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@ -435,10 +435,6 @@ struct TreeListEnt {
static void DrawTile_Trees(TileInfo *ti)
{
const PalSpriteID *s;
const TreePos* d;
byte z;
switch (GetTreeGround(ti->tile)) {
case TREE_GROUND_SHORE: DrawShoreTile(ti->tileh); break;
case TREE_GROUND_GRASS: DrawClearLandTile(ti, GetTreeDensity(ti->tile)); break;
@ -451,47 +447,39 @@ static void DrawTile_Trees(TileInfo *ti)
/* Do not draw trees when the invisible trees patch and transparency tree are set */
if (IsTransparencySet(TO_TREES) && _patches.invisible_trees) return;
z = ti->z;
if (ti->tileh != SLOPE_FLAT) {
z += 4;
if (IsSteepSlope(ti->tileh)) z += 4;
uint16 tmp = ti->x;
tmp = ROR(tmp, 2);
tmp -= ti->y;
tmp = ROR(tmp, 3);
tmp -= ti->x;
tmp = ROR(tmp, 1);
tmp += ti->y;
uint index = GB(tmp, 6, 2) + (GetTreeType(ti->tile) << 2);
/* different tree styles above one of the grounds */
if (GetTreeGround(ti->tile) == TREE_GROUND_SNOW_DESERT &&
GetTreeDensity(ti->tile) >= 2 &&
IsInsideMM(index, TREE_SUB_ARCTIC << 2, TREE_RAINFOREST << 2)) {
index += 164 - (TREE_SUB_ARCTIC << 2);
}
{
uint16 tmp = ti->x;
uint index;
assert(index < lengthof(_tree_layout_sprite));
tmp = ROR(tmp, 2);
tmp -= ti->y;
tmp = ROR(tmp, 3);
tmp -= ti->x;
tmp = ROR(tmp, 1);
tmp += ti->y;
d = _tree_layout_xy[GB(tmp, 4, 2)];
index = GB(tmp, 6, 2) + (GetTreeType(ti->tile) << 2);
/* different tree styles above one of the grounds */
if (GetTreeGround(ti->tile) == TREE_GROUND_SNOW_DESERT &&
GetTreeDensity(ti->tile) >= 2 &&
IsInsideMM(index, TREE_SUB_ARCTIC << 2, TREE_RAINFOREST << 2)) {
index += 164 - (TREE_SUB_ARCTIC << 2);
}
assert(index < lengthof(_tree_layout_sprite));
s = _tree_layout_sprite[index];
}
const PalSpriteID *s = _tree_layout_sprite[index];
const TreePos *d = _tree_layout_xy[GB(tmp, 4, 2)];
/* combine trees into one sprite object */
StartSpriteCombine();
TreeListEnt te[4];
uint i;
/* put the trees to draw in a list */
i = GetTreeCount(ti->tile) + 1;
do {
SpriteID image = s[0].sprite + (--i == 0 ? GetTreeGrowth(ti->tile) : 3);
uint trees = GetTreeCount(ti->tile) + 1;
for (uint i = 0; i < trees; i++) {
SpriteID image = s[0].sprite + (i == trees - 1 ? GetTreeGrowth(ti->tile) : 3);
SpriteID pal = s[0].pal;
te[i].image = image;
@ -500,25 +488,26 @@ static void DrawTile_Trees(TileInfo *ti)
te[i].y = d->y;
s++;
d++;
} while (i);
}
/* draw them in a sorted way */
for (;;) {
byte min = 0xFF;
TreeListEnt *tep = NULL;
byte z = ti->z + GetSlopeMaxZ(ti->tileh) / 2;
i = GetTreeCount(ti->tile) + 1;
do {
if (te[--i].image != 0 && te[i].x + te[i].y < min) {
for (; trees > 0; trees--) {
uint min = te[0].x + te[0].y;
uint mi = 0;
for (uint i = 1; i < trees; i++) {
if (te[i].x + te[i].y < min) {
min = te[i].x + te[i].y;
tep = &te[i];
mi = i;
}
} while (i);
}
if (tep == NULL) break;
AddSortableSpriteToDraw(te[mi].image, te[mi].pal, ti->x + te[mi].x, ti->y + te[mi].y, 16 - te[mi].x, 16 - te[mi].y, 0x30, z, IsTransparencySet(TO_TREES), -te[mi].x, -te[mi].y);
AddSortableSpriteToDraw(tep->image, tep->pal, ti->x + tep->x, ti->y + tep->y, 16 - tep->x, 16 - tep->y, 0x30, z, IsTransparencySet(TO_TREES), -tep->x, -tep->y);
tep->image = 0;
/* replace the removed one with the last one */
te[mi] = te[trees - 1];
}
EndSpriteCombine();