public void draw(GL2 gl) {
if (particles.size() == 0) return;
switch (blendMode) {
case 0: // '\0'
gl.glDisable(3042);
gl.glDisable(3008);
break;
case 1: // '\001'
gl.glEnable(3042);
gl.glDisable(3008);
gl.glBlendFunc(768, 1);
break;
case 2: // '\002'
gl.glEnable(3042);
gl.glDisable(3008);
gl.glBlendFunc(770, 1);
break;
case 3: // '\003'
gl.glDisable(3042);
gl.glEnable(3008);
break;
case 4: // '\004'
gl.glEnable(3042);
gl.glDisable(3008);
gl.glBlendFunc(770, 1);
break;
}
gl.glBindTexture(3553, model.mMaterials[texture].mTextureId);
gl.glPushMatrix();
if (particleType == 0 || particleType == 2) {
if ((flags & 0x1000) == 0) {
Vec3 view = new Vec3(viewer.getCamera().getPosition());
view.normalize();
Vec3 right = Vec3.cross(view, new Vec3(0.0F, 0.0F, 1.0F)).normalize();
Vec3 up = Vec3.cross(right, view).normalize();
int tcStart = 0;
if (flags == 0x40019) tcStart++;
gl.glBegin(7);
int count = particles.size();
Vec3 pos = new Vec3();
Vec3 cPos = new Vec3();
Vec3 ofs = new Vec3();
for (int i = 0; i < count; i++) {
Particle p = (Particle) particles.get(i);
if (p.tile < texCoords.size()) {
gl.glColor4f(p.color.x, p.color.y, p.color.z, p.color.w);
Point2f tc[] = (Point2f[]) texCoords.get(p.tile);
Vec3.add(right, up, ofs);
cPos.set(p.pos);
Vec3.sub(cPos, ofs.scale(p.size), pos);
gl.glTexCoord2f(tc[tcStart % 4].x, tc[tcStart % 4].y);
gl.glVertex3f(pos.x, pos.y, pos.z);
Vec3.sub(right, up, ofs);
Vec3.add(cPos, ofs.scale(p.size), pos);
gl.glTexCoord2f(tc[(tcStart + 1) % 4].x, tc[(tcStart + 1) % 4].y);
gl.glVertex3f(pos.x, pos.y, pos.z);
Vec3.add(right, up, ofs);
Vec3.add(cPos, ofs.scale(p.size), pos);
gl.glTexCoord2f(tc[(tcStart + 2) % 4].x, tc[(tcStart + 2) % 4].y);
gl.glVertex3f(pos.x, pos.y, pos.z);
Vec3.sub(right, up, ofs);
Vec3.sub(cPos, ofs.scale(p.size), pos);
gl.glTexCoord2f(tc[(tcStart + 3) % 4].x, tc[(tcStart + 3) % 4].y);
gl.glVertex3f(pos.x, pos.y, pos.z);
}
}
gl.glEnd();
} else {
gl.glBegin(7);
int count = particles.size();
Vec3 pos = new Vec3();
Vec3 ofs = new Vec3();
for (int i = 0; i < count; i++) {
Particle p = (Particle) particles.get(i);
if (p.tile < texCoords.size()) {
gl.glColor4f(p.color.x, p.color.y, p.color.z, p.color.w);
Point2f tc[] = (Point2f[]) texCoords.get(p.tile);
Vec3.add(p.pos, Vec3.scale(p.corners[0], p.size, ofs), pos);
gl.glTexCoord2f(tc[0].x, tc[0].y);
gl.glVertex3f(pos.x, pos.y, pos.z);
Vec3.add(p.pos, Vec3.scale(p.corners[1], p.size, ofs), pos);
gl.glTexCoord2f(tc[1].x, tc[1].y);
gl.glVertex3f(pos.x, pos.y, pos.z);
Vec3.add(p.pos, Vec3.scale(p.corners[2], p.size, ofs), pos);
gl.glTexCoord2f(tc[2].x, tc[2].y);
gl.glVertex3f(pos.x, pos.y, pos.z);
Vec3.add(p.pos, Vec3.scale(p.corners[3], p.size, ofs), pos);
gl.glTexCoord2f(tc[3].x, tc[3].y);
gl.glVertex3f(pos.x, pos.y, pos.z);
}
}
gl.glEnd();
}
} else if (particleType == 1) {
gl.glBegin(7);
int count = particles.size();
Vec3 pos = new Vec3();
Vec3 ofs = new Vec3();
float f = 1.0F;
Vec3 bv0 = new Vec3(-f, f, 0.0F);
Vec3 bv1 = new Vec3(f, f, 0.0F);
for (int i = 0; i < count; i++) {
Particle p = (Particle) particles.get(i);
if (p.tile >= texCoords.size() - 1) break;
gl.glColor4f(p.color.x, p.color.y, p.color.z, p.color.w);
Point2f tc[] = (Point2f[]) texCoords.get(p.tile);
Vec3.add(p.pos, Vec3.scale(bv0, p.size, ofs), pos);
gl.glTexCoord2f(tc[0].x, tc[0].y);
gl.glVertex3f(pos.x, pos.y, pos.z);
Vec3.add(p.pos, Vec3.scale(bv1, p.size, ofs), pos);
gl.glTexCoord2f(tc[1].x, tc[1].y);
gl.glVertex3f(pos.x, pos.y, pos.z);
Vec3.add(p.origin, Vec3.scale(bv1, p.size, ofs), pos);
gl.glTexCoord2f(tc[2].x, tc[2].y);
gl.glVertex3f(pos.x, pos.y, pos.z);
Vec3.add(p.origin, Vec3.scale(bv0, p.size, ofs), pos);
gl.glTexCoord2f(tc[3].x, tc[3].y);
gl.glVertex3f(pos.x, pos.y, pos.z);
}
gl.glEnd();
}
gl.glPopMatrix();
}
