////////////////////////////////////////////////////////////////////////////////
// Initialize ALL the particles
void InitPart(particle *part) {
int i; // Iterator
for (i = 0; i < MAXPART; ++i)
partinit(part, i);
}
////////////////////////////////////////////////////////////////////////////////
// Draw particles
void DrawPart(unsigned int *texture, particle *part,
double x, double y, double z,
double s, double r) {
int i; // Iterator
float px, py, pz; // Position
// Push Attributes for Politness
glPushAttrib(GL_CURRENT_BIT | GL_POINT_BIT |
GL_LINE_BIT | GL_TEXTURE_BIT);
// Save transformation
glPushMatrix();
// Offset
glTranslated(x,y,z);
glRotated(r,0,1,0);
glScaled(s, s, s);
// Add Textures
/*
glDisable(GL_DEPTH_TEST);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
*/
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, texture[DIRT]);
for (i = 0; i < MAXPART; ++i) {
if (part[i].active) { // Make sure it's active!
px = part[i].xp;
py = part[i].yp;
pz = part[i].zp;
if (py < 0)
partinit(part, i);
else {
//glColor4f(part[i].r, part[i].g, part[i].b, 1 /*part[i].life*/);
glBegin(GL_QUADS);
glNormal3d(0, 0, -1);
glTexCoord2d(1.0, 0.0); glVertex3f(px + 0.5, py - 0.5, pz - 0.5);
glTexCoord2d(1.0, 1.0); glVertex3f(px + 0.5, py + 0.5, pz - 0.5);
glTexCoord2d(0.0, 1.0); glVertex3f(px - 0.5, py + 0.5, pz - 0.5);
glTexCoord2d(0.0, 0.0); glVertex3f(px - 0.5, py - 0.5, pz - 0.5);
glNormal3d(0, 0, +1);
glTexCoord2d(1.0, 0.0); glVertex3f(px + 0.5, py - 0.5, pz + 0.5);
glTexCoord2d(1.0, 1.0); glVertex3f(px + 0.5, py + 0.5, pz + 0.5);
glTexCoord2d(0.0, 1.0); glVertex3f(px - 0.5, py + 0.5, pz + 0.5);
glTexCoord2d(0.0, 0.0); glVertex3f(px - 0.5, py - 0.5, pz + 0.5);
glNormal3d(0, -1, 0);
glTexCoord2d(1.0, 0.0); glVertex3f(px + 0.5, py - 0.5, pz - 0.5);
glTexCoord2d(1.0, 1.0); glVertex3f(px + 0.5, py - 0.5, pz + 0.5);
glTexCoord2d(0.0, 1.0); glVertex3f(px - 0.5, py - 0.5, pz + 0.5);
glTexCoord2d(0.0, 0.0); glVertex3f(px - 0.5, py - 0.5, pz - 0.5);
glNormal3d(0, +1, 0);
glTexCoord2d(1.0, 0.0); glVertex3f(px + 0.5, py + 0.5, pz - 0.5);
glTexCoord2d(1.0, 1.0); glVertex3f(px + 0.5, py + 0.5, pz + 0.5);
glTexCoord2d(0.0, 1.0); glVertex3f(px - 0.5, py + 0.5, pz + 0.5);
glTexCoord2d(0.0, 0.0); glVertex3f(px - 0.5, py + 0.5, pz - 0.5);
glNormal3d(-1, 0, 0);
glTexCoord2d(1.0, 0.0); glVertex3f(px - 0.5, py - 0.5, pz + 0.5);
glTexCoord2d(1.0, 1.0); glVertex3f(px - 0.5, py + 0.5, pz + 0.5);
glTexCoord2d(0.0, 1.0); glVertex3f(px - 0.5, py + 0.5, pz - 0.5);
glTexCoord2d(0.0, 0.0); glVertex3f(px - 0.5, py - 0.5, pz - 0.5);
glNormal3d(+1, 0, 0);
glTexCoord2d(1.0, 0.0); glVertex3f(px + 0.5, py - 0.5, pz + 0.5);
glTexCoord2d(1.0, 1.0); glVertex3f(px + 0.5, py + 0.5, pz + 0.5);
glTexCoord2d(0.0, 1.0); glVertex3f(px + 0.5, py + 0.5, pz - 0.5);
glTexCoord2d(0.0, 0.0); glVertex3f(px + 0.5, py - 0.5, pz - 0.5);
glEnd();
/*
glBegin(GL_TRIANGLE_STRIP);
glTexCoord2d(0.0, 1.0); glVertex3f(tetra[0][0] + px, tetra[0][1] + py, tetra[0][2] + pz);
glTexCoord2d(1.0, 0.0); glVertex3f(tetra[1][0] + px, tetra[1][1] + py, tetra[1][2] + pz);
glTexCoord2d(0.5, 1.0); glVertex3f(tetra[2][0] + px, tetra[2][1] + py, tetra[2][2] + pz);
glTexCoord2d(0.5, 0.0); glVertex3f(tetra[3][0] + px, tetra[3][1] + py, tetra[3][2] + pz);
glTexCoord2d(0.0, 1.0); glVertex3f(tetra[0][0] + px, tetra[0][1] + py, tetra[0][2] + pz);
glTexCoord2d(1.0, 0.0); glVertex3f(tetra[1][0] + px, tetra[1][1] + py, tetra[1][2] + pz);
glEnd();
*/
// Move Particle
part[i].xp += part[i].xd/(slow*1000); // Move on X-Axis By X Speed
part[i].yp += part[i].yd/(slow*1000); // Move on Y-Axis By Y Speed
part[i].zp += part[i].zd/(slow*1000); // Move on Z-Axis By Z Speed
// Add Gravity
part[i].xd += part[i].xg; // Add X-Axis Gravity
part[i].yd += part[i].yg; // Add Y-Axis Gravity
part[i].zd += part[i].zg; // Add Z-Axis Gravity
// Reduce particle Life by 'Fade'
part[i].life -= part[i].fade;
if (part[i].life < 0)
partinit(part, i);
}
}
}
// Reset Things
glDisable(GL_BLEND);
glEnable(GL_DEPTH_TEST);
// Switch off textures
glDisable(GL_TEXTURE_2D);
// Undo transofrmations
glPopMatrix();
// Pop Attributes for Politness
glPopAttrib();
}
void
devinit(Device *d)
{
for (;;) {
if(d->init)
return;
d->init = 1;
print("\tdevinit %Z\n", d);
switch(d->type) {
default:
print("devinit unknown device %Z\n", d);
return;
case Devro:
cwinit(d->ro.parent);
return;
case Devcw:
cwinit(d);
return;
case Devjuke:
jukeinit(d);
return;
case Devwren:
wreninit(d);
return;
case Devworm:
case Devlworm:
return;
case Devfworm:
fworminit(d);
return;
case Devmcat:
mcatinit(d);
return;
case Devmlev:
mlevinit(d);
return;
case Devmirr:
mirrinit(d);
return;
case Devpart:
partinit(d);
return;
case Devswab:
d = d->swab.d;
break;
case Devnone:
print("devinit of Devnone\n");
return;
}
}
}