1 files changed, 132 insertions, 0 deletions
diff --git a/lib/sprite.cc b/lib/sprite.cc
new file mode 100644
index 0000000..be2fd3b
--- /dev/null
+++ b/lib/sprite.cc
@@ -0,0 +1,132 @@
+#include <SDL.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()->pixels + TEXSIZE * y + posx, sx);
+    }
+}
+
+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()->pixels + TEXSIZE * y + posx, sx);
+	p += sx;
+    }
+}
+
+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 (y = 0; (py < (TEXSIZE - sy)) && !found; py++) {
+	    for (x = 0; (px < (TEXSIZE - sx)) && !found; px++) {
+		if (p->strheader->canfit(x, y, x + sx, y + sy)) {
+		    found = true;
+		}
+	    }
+	}
+    }
+    
+    if (!found) {
+#ifdef DEBUG
+	printm(M_INFO, "Allocating a new texture for sprites\n");
+#endif
+	x = y = 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;
+}
+
+const mogltk::Sprite::TexList * mogltk::Sprite::TexList::GetHead() const {
+    return header;
+}
+
+const mogltk::Sprite::TexList * mogltk::Sprite::TexList::GetNext() const {
+    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 = x, sy1 = y, sx2 = x + sx, sy2 = y + 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()
+	else
+	    return false;
+}
+
+void mogltk::Sprite::draw(int dx, int dy, Color c) {
+    bool was2D;
+    
+    was2D = mogltk::glbase::is2D();
+    
+    if (!was2D)
+	mogltk::glbase::Enter2DMode();
+
+    tlist->Bind();
+    glBegin(GL_TRIANGLE_STRIP);
+    glTexCoord2i(x         , y         ); glVertex2i(dx         , dy         );
+    glTexCoord2i(x + sx - 1, y         ); glVertex2i(dx + sx - 1, dy         );
+    glTexCoord2i(x         , y + sy - 1); glVertex2i(dx         , dy + sy - 1);
+    glTexCoord2i(x + sx - 1, y + sy - 1); glVertex2i(dx + sx - 1, dy + sy - 1);
+    glEnd();
+
+    if (!was2D)
+	mogltk::glbase::Leave2DMode();
+}