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TOLTECS: Finished sprite clipping.

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This commit is contained in:
Benjamin Haisch 2008-08-14 09:20:52 +00:00 committed by Willem Jan Palenstijn
parent 32d958508b
commit c82349c1b8
1 changed files with 31 additions and 13 deletions
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44
engines/toltecs/screen.cpp
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@ -271,7 +271,7 @@ void Screen::clearSprites() {
void Screen::addDrawRequest(const DrawRequest &drawRequest) {
int16 scaleValueX, scaleValueY;
int16 spriteDraw_X, spriteDraw_Y;
int16 xoffs, yoffs;
byte *spriteData;
int16 frameNum;
@ -290,6 +290,10 @@ void Screen::addDrawRequest(const DrawRequest &drawRequest) {
spriteData = _vm->_res->load(drawRequest.resIndex);
if (drawRequest.flags & 0x1000) {
sprite.flags |= 4;
}
if (drawRequest.flags & 0x2000) {
sprite.flags |= 0x10;
}
@ -316,12 +320,12 @@ void Screen::addDrawRequest(const DrawRequest &drawRequest) {
sprite.origHeight = spriteFrameEntry.h;
if (drawRequest.flags & 0x1000) {
spriteDraw_X = spriteFrameEntry.w - spriteFrameEntry.x;
xoffs = spriteFrameEntry.w - spriteFrameEntry.x;
} else {
spriteDraw_X = spriteFrameEntry.x;
xoffs = spriteFrameEntry.x;
}
spriteDraw_Y = spriteFrameEntry.y;
yoffs = spriteFrameEntry.y;
// If the sprite should be scaled we need to initialize some values now
@ -341,22 +345,22 @@ void Screen::addDrawRequest(const DrawRequest &drawRequest) {
sprite.flags |= 2;
sprite.width = sprite.origWidth + scaleValueX;
sprite.height = sprite.origHeight + scaleValueY;
spriteDraw_X += (spriteDraw_X * scaleValue) / 100;
spriteDraw_Y += (spriteDraw_Y * scaleValue) / 100;
xoffs += (xoffs * scaleValue) / 100;
yoffs += (yoffs * scaleValue) / 100;
} else {
sprite.flags |= 1;
sprite.width = sprite.origWidth - scaleValueX;
sprite.height = sprite.origHeight - 1 - scaleValueY;
if (sprite.width <= 0 || sprite.height <= 0)
return;
spriteDraw_X -= (spriteDraw_X * scaleValue) / 100;
spriteDraw_Y -= (spriteDraw_Y * scaleValue) / 100;
xoffs -= (xoffs * scaleValue) / 100;
yoffs -= (yoffs * scaleValue) / 100;
}
}
sprite.x -= spriteDraw_X;
sprite.y -= spriteDraw_Y;
sprite.x -= xoffs;
sprite.y -= yoffs;
sprite.yerror = sprite.ydelta;
@ -435,7 +439,6 @@ void Screen::addDrawRequest(const DrawRequest &drawRequest) {
if (drawRequest.flags & 0x1000) {
// Left border
sprite.flags |= 4;
if (sprite.x - _vm->_cameraX < 0) {
sprite.width -= ABS(sprite.x - _vm->_cameraX);
if (sprite.width <= 0)
@ -551,6 +554,9 @@ void Screen::drawSpriteCore(byte *dest, SpriteFilter &reader, SpriteDrawItem *sp
byte *destp = dest;
int16 skipX = sprite->value1;
int16 w = sprite->width;
int16 h = sprite->height;
do {
status = reader.readPacket(packet);
@ -565,6 +571,11 @@ void Screen::drawSpriteCore(byte *dest, SpriteFilter &reader, SpriteDrawItem *sp
}
}
if (w - packet.count < 0)
packet.count = w;
w -= packet.count;
if (((sprite->flags & 0x40) && (packet.pixel != 0)) ||
((sprite->flags & 0x10) && (packet.pixel != 0xFF)) ||
!(sprite->flags & 0x10) && (packet.pixel != 0))
@ -589,13 +600,20 @@ void Screen::drawSpriteCore(byte *dest, SpriteFilter &reader, SpriteDrawItem *sp
dest += packet.count * destInc;
}
if (status == kSrsEndOfLine) {
if (status == kSrsEndOfLine || w == 0) {
if (w == 0) {
while (status != kSrsEndOfLine) {
status = reader.readPacket(packet);
}
}
dest = destp + 640;
destp = dest;
skipX = sprite->value1;
w = sprite->width;
h--;
}
} while (status != kSrsEndOfSprite);
} while (status != kSrsEndOfSprite && h > 0);
}