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#include <SDL.h>
#include "glbase.h"
#include "sprite.h"
#define TEXSIZE 256
mogltk::Sprite::TexList * mogltk::Sprite::TexList::header = 0;
mogltk::Sprite::Sprite(Handle * h, int asx, int asy) : sx(asx), sy(asy) {
alloc();
for (int y = 0; y < sy; y++) {
h->read(tlist->GetTex()->GetPixels() + TEXSIZE * y + posx, sx * 4);
}
}
mogltk::Sprite::Sprite(Uint8 * p, int asx, int asy) : sx(asx), sy(asy) {
alloc();
for (int y = 0; y < sy; y++) {
bcopy(p, tlist->GetTex()->GetPixels() + TEXSIZE * y + posx, sx * 4);
p += sx * 4;
}
}
mogltk::Sprite::~Sprite() {
if (prev)
prev->next = next;
else
tlist->sprheader = next;
if (next)
next->prev = prev;
if (!tlist->sprheader) {
delete tlist;
}
}
void mogltk::Sprite::alloc() {
/* FIXMEEEEEEEEEEEEE */
bool found = false;
TexList * p;
for (p = tlist; p && !found; p = p->GetNext()) {
for (posy = 0; (posy < (TEXSIZE - sy)) && !found; posy++) {
for (posx = 0; (posx < (TEXSIZE - sx)) && !found; posx++) {
if (p->sprheader->canfit(posx, posy, posx + sx, posy + sy)) {
found = true;
}
}
}
}
if (!found) {
#ifdef DEBUG
printm(M_INFO, "Allocating a new texture for sprites\n");
#endif
posx = posy = 0;
p = new TexList(TEXSIZE);
}
tlist = p;
}
mogltk::Sprite::TexList::TexList(int size) {
tex = new texture(size, size, true);
if (header)
header->next->prev = this;
prev = 0;
next = header;
header = this;
}
mogltk::Sprite::TexList::~TexList() {
delete tex;
if (prev)
prev->next = next;
else
header = next;
if (next)
next->prev = prev;
}
const mogltk::texture * mogltk::Sprite::TexList::GetTex() const {
return tex;
}
mogltk::texture * mogltk::Sprite::TexList::GetTex() {
return tex;
}
const mogltk::Sprite::TexList * mogltk::Sprite::TexList::GetHead() {
return header;
}
const mogltk::Sprite::TexList * mogltk::Sprite::TexList::GetNext() const {
return next;
}
mogltk::Sprite::TexList * mogltk::Sprite::TexList::GetNext() {
return next;
}
void mogltk::Sprite::TexList::Bind() const {
tex->Bind();
}
bool mogltk::Sprite::intersect(int x1, int y1, int x2, int y2) const {
int sx1 = posx, sy1 = posy, sx2 = posx + sx, sy2 = posy + sy;
return !((sx1 >= x2) || (sx2 <= x1) || (sy1 >= y1) || (sy2 <= y2));
}
bool mogltk::Sprite::canfit(int x1, int y1, int x2, int y2) const {
if (!intersect(x1, y1, x2, y2))
return true;
else
if (next)
return next->canfit(x1, y1, x2, y2);
else
return false;
}
void mogltk::Sprite::draw(int dx, int dy, ColorP c) {
bool was2D;
was2D = mogltk::glbase::is2D();
if (!was2D)
mogltk::glbase::Enter2DMode();
c.Bind();
tlist->Bind();
glBegin(GL_TRIANGLE_STRIP);
glTexCoord2i(posx , posy ); glVertex2i(dx , dy );
glTexCoord2i(posx + sx - 1, posy ); glVertex2i(dx + sx - 1, dy );
glTexCoord2i(posx , posy + sy - 1); glVertex2i(dx , dy + sy - 1);
glTexCoord2i(posx + sx - 1, posy + sy - 1); glVertex2i(dx + sx - 1, dy + sy - 1);
glEnd();
if (!was2D)
mogltk::glbase::Leave2DMode();
}
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