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PRINCE: drawAsShadow() update

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This commit is contained in:
lukaslw 2014-06-09 20:03:33 +02:00
parent ffa438afeb
commit 26db9ae9f5
1 changed files with 10 additions and 5 deletions
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15
engines/prince/graphics.cpp
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@ -165,18 +165,23 @@ void GraphicsMan::drawMask(Graphics::Surface *screen, DrawNode *drawNode) {
}
void GraphicsMan::drawAsShadow(Graphics::Surface *screen, DrawNode *drawNode) {
byte *src1 = (byte *)drawNode->s->getBasePtr(0, 0);
byte *dst1 = (byte *)screen->getBasePtr(drawNode->posX, drawNode->posY);
for (int y = 0; y < drawNode->s->h; y++) {
for (int x = 0; x < drawNode->s->w; x++) {
byte pixel = *((byte*)drawNode->s->getBasePtr(x, y));
if (pixel == kShadowColor) {
byte *src2 = src1;
byte *dst2 = dst1;
for (int x = 0; x < drawNode->s->w; x++, src2++, dst2++) {
if (*src2 == kShadowColor) {
if (x + drawNode->posX < screen->w && x + drawNode->posX >= 0) {
if (y + drawNode->posY < screen->h && y + drawNode->posY >= 0) {
byte *background = (byte *)screen->getBasePtr(x + drawNode->posX, y + drawNode->posY);
*background = *(drawNode->data + *background);
*dst2 = *(drawNode->data + *dst2);
}
}
}
}
src1 += drawNode->s->pitch;
dst1 += screen->pitch;
}
}