/*
* insert a pyramid into the module
*/
void module_pyramid(Module *md, int solid, float size, float x, float y, float z){
if(!md){
printf("Null md passed to module_pyramid\n");
return;
}
Polygon side;
Point tv[3];
Point v[5];
Line l;
Element *e;
int i;
polygon_init(&side);
// corners of the pyramid
point_set3D(&v[0], -1, -1, -1 );
point_set3D(&v[1], 1, -1, -1 );
point_set3D(&v[2], 1, -1, 1 );
point_set3D(&v[3], -1, -1, 1 );
point_set3D(&v[4], 0, 0, 0);
//printf("points created\n");
// set pyramid parameters
module_scale(md, (int)size, (int)size, (int)size);
module_translate(md, (float)x, (float)y, (float)z);
//printf("parameters set\n");
if (solid == 0){
// add only lines
// foundation
for(i=0;i<3;i++){
line_set( &l, v[i], v[i+1] );
e = element_init(ObjLine, &l);
module_insert(md, e);
}
line_set( &l, v[3], v[0] );
e = element_init(ObjLine, &l);
module_insert(md, e);
// connecting lines
line_set( &l, v[4], v[0] );
e = element_init(ObjLine, &l);
module_insert(md, e);
line_set( &l, v[1], v[4] );
e = element_init(ObjLine, &l);
module_insert(md, e);
line_set( &l, v[2], v[4] );
e = element_init(ObjLine, &l);
module_insert(md, e);
line_set( &l, v[3], v[4] );
e = element_init(ObjLine, &l);
module_insert(md, e);
//printf("successfully passed to module\n");
} else{
// front side
point_copy(&tv[0], &v[0]);
point_copy(&tv[1], &v[1]);
point_copy(&tv[2], &v[4]);
polygon_set(&side, 3, tv);
e = element_init(ObjPolygon, &side);
module_insert(md, e);
// back side
point_copy(&tv[0], &v[3]);
point_copy(&tv[1], &v[2]);
point_copy(&tv[2], &v[4]);
polygon_set(&side, 3, tv);
e = element_init(ObjPolygon, &side);
module_insert(md, e);
// bottom side
polygon_set(&side, 4, &(v[0]));
e = element_init(ObjPolygon, &side);
module_insert(md, e);
// left side
point_copy(&tv[0], &v[0]);
point_copy(&tv[1], &v[3]);
point_copy(&tv[2], &v[4]);
polygon_set(&side, 3, tv);
e = element_init(ObjPolygon, &side);
module_insert(md, e);
// right side
point_copy(&tv[0], &v[1]);
point_copy(&tv[1], &v[2]);
point_copy(&tv[2], &v[4]);
polygon_set(&side, 3, tv);
e = element_init(ObjPolygon, &side);
module_insert(md, e);
//printf("successfully passed to module\n");
}
polygon_clear(&side);
}
/*
* Sourced from coursework file test6b.c (Bruce Maxwell)
*/
void module_cone( Module *mod, int sides, int fill, int size, float x, float y, float z) {
Polygon p;
Point xtop, xbot;
Element *e;
Line l;
double x1, x2, z1, z2;
int i;
if(!mod){
printf("Null md passed to module_cylinder\n");
return;
}
// set cone parameters
module_scale(mod, (int)size, (int)size, (int)size);
module_translate(mod, (float)x, (float)y, (float)z);
printf("parameters set\n");
polygon_init( &p );
point_set3D( &xtop, 0, 1.0, 0.0 );
point_set3D( &xbot, 0, 0.0, 0.0 );
if (fill == 1){
// make a fan for the top and bottom sides
// and quadrilaterals for the sides
for(i=0;i<sides;i++) {
Point pt[6];
x1 = cos( i * M_PI * 2.0 / sides );
z1 = sin( i * M_PI * 2.0 / sides );
x2 = cos( ( (i+1)%sides ) * M_PI * 2.0 / sides );
z2 = sin( ( (i+1)%sides ) * M_PI * 2.0 / sides );
point_copy( &pt[0], &xbot );
point_set3D( &pt[1], x1, 0.0, z1 );
point_set3D( &pt[2], x2, 0.0, z2 );
polygon_set( &p, 3, pt );
e = element_init(ObjPolygon, &p);
module_insert(mod, e);
point_set3D( &pt[3], x1, 0.0, z1 );
point_set3D( &pt[4], x2, 0.0, z2 );
point_copy( &pt[5], &xtop);
polygon_set( &p, 3, &pt[3] );
e = element_init(ObjPolygon, &p);
module_insert(mod, e);
}
} else{
// make a fan for the top and bottom sides
// and quadrilaterals for the sides
for(i=0;i<sides;i++) {
Point pt[8];
x1 = cos( i * M_PI * 2.0 / sides );
z1 = sin( i * M_PI * 2.0 / sides );
x2 = cos( ( (i+1)%sides ) * M_PI * 2.0 / sides );
z2 = sin( ( (i+1)%sides ) * M_PI * 2.0 / sides );
point_copy( &pt[0], &xbot );
point_set3D( &pt[1], x1, 0.0, z1 );
point_set3D( &pt[2], x2, 0.0, z2 );
line_set( &l, pt[0], pt[1] );
e = element_init(ObjLine, &l);
module_insert(mod, e);
line_set( &l, pt[1], pt[2] );
e = element_init(ObjLine, &l);
module_insert(mod, e);
line_set( &l, pt[2], pt[0]);
e = element_init(ObjLine, &l);
module_insert(mod, e);
point_set3D( &pt[3], x1, 0.0, z1 );
point_set3D( &pt[4], x2, 0.0, z2 );
point_set3D( &pt[5], x2, 1.0, z2 );
point_set3D( &pt[6], x1, 1.0, z1 );
point_copy( &pt[7], &xtop);
line_set( &l, pt[0], pt[7] );
e = element_init(ObjLine, &l);
module_insert(mod, e);
line_set( &l, pt[1], pt[7] );
e = element_init(ObjLine, &l);
module_insert(mod, e);
line_set( &l, pt[2], pt[7]);
e = element_init(ObjLine, &l);
module_insert(mod, e);
line_set( &l, pt[3], pt[7]);
e = element_init(ObjLine, &l);
module_insert(mod, e);
}
}
polygon_clear( &p );
}
// makes 3 X-wing fighters in a loose formation
int main(int argc, char *argv[]) {
int i, j; //loop variables
Image *src;
Module* wall;
Module* ray;
Module* ray2;
Module *scene1;
Module* scene2;
Polygon p;
Line l;
Point point[4];
Point point2[2];
View3D view;
Matrix vtm, gtm;
DrawState *ds;
char filename[100];
Color Flame = { { 1.0, 0.7, 0.2 } };
Color Red = { { 1.0, 0.2, 0.1 } };
Color Grey = { { 0.745, 0.745, 0.745} };
Color Blue = {{0.117647, 0.564706, 1}};
// Color Grey = {{1, 1, 1}};
// set up the view
point_set3D( &(view.vrp), 4, 4, 4 );
vector_set( &(view.vpn), -view.vrp.val[0], -view.vrp.val[1], -view.vrp.val[2] );
vector_set( &(view.vup), 0, 1, 0 );
view.d = 1;
view.du = 1.6;
view.dv = 0.9;
view.f = 1;
view.b = 50;
view.screenx = 640;
view.screeny = 360;
matrix_setView3D( &vtm, &view );
matrix_identity( >m );
// //wall
wall = module_create();
module_color(wall, &Red);
polygon_init(&p);
point_set3D(&point[0], 1,1,2);
point_set3D(&point[1], 1,0,2);
point_set3D(&point[2], 0,0,2);
point_set3D(&point[3], 0,1,2);
polygon_set(&p, 4, &point[0]);
module_polygon(wall, &p);
//ray
ray = module_create();
module_color(ray, &Blue);
for(i=0; i< 5; i++){
point_set3D(&point2[0], -1+0.01*i, -1, 1);
point_set3D(&point2[1], 1+0.01*i, 1, 1);
line_set(&l, point2[0], point2[1]);
module_line(ray, &l);
}
//ray2
ray2 = module_create();
module_color(ray2, &Red);
for(i=0; i< 5; i++){
point_set3D(&point2[0], -1+0.01*i, 1, -1);
point_set3D(&point2[1], 1+0.01*i, -1, -1);
line_set(&l, point2[0], point2[1]);
// line_zBuffer(&l, 0);
module_line(ray2, &l);
}
//scene
// scene = module_create();
// module_module(scene, wall);
// module_module(scene, ray);
// module_module(scene, ray2);
// module_module(scene, wall);
for(i=0; i< 36; i++){
//scene
scene1 = module_create();
scene2 = module_create();
module_rotateZ(scene1, cos(i*10 * M_PI/180), sin(i*10 * M_PI/180));
module_scale( scene1, 3, 1, 2 );
module_color( scene1, &Blue );
module_cube( scene1, 1);
module_scale(scene2, 0.5, 0.5, 0.5);
module_cylinder(scene2, 30);
// create the image and drawstate
src = image_create( 360, 640 );
ds = drawstate_create();
drawstate_setAlpha(ds, 1);
ds->shade = ShadeDepth;
// draw into the scene
// module_draw( scene1, &vtm, >m, ds, src );
drawstate_setAlpha(ds, 1 );
module_draw( scene1, &vtm, >m, ds, src );
// write out the scene
sprintf(filename, "frame_%.2d.ppm", i);
image_write( src, filename );
module_delete( scene1);
}
//free the polygon data
// polygon_clear( &p );
// free the modules
// module_delete( scene);
// module_delete( wall );
// free the drawstate
free(ds);
// free the image
image_free( src );
return(0);
}
