nuclear@1: #include "object.h"
nuclear@1: #include "vmath.h"
nuclear@1: #include "min3d.h"
nuclear@9: #include "logger.h"
nuclear@1: 
nuclear@1: Object::Object()
nuclear@1: {
nuclear@1: }
nuclear@1: 
nuclear@1: Object::~Object()
nuclear@1: {
nuclear@1: }
nuclear@1: 
nuclear@1: // ---- sphere ----
nuclear@1: Sphere::Sphere()
nuclear@1: {
nuclear@1: }
nuclear@1: 
nuclear@1: Sphere::~Sphere()
nuclear@1: {
nuclear@1: }
nuclear@1: 
nuclear@9: #define USUB	12
nuclear@9: #define VSUB	6
nuclear@1: 
nuclear@1: void Sphere::draw() const
nuclear@1: {
nuclear@1: 	static Vector3 *varr;
nuclear@9: 	static unsigned int *iarr;
nuclear@9: 	static int num_verts, num_indices;
nuclear@1: 	if(!varr) {
nuclear@9: 		int i, j;
nuclear@1: 		int uverts = USUB;
nuclear@1: 		int vverts = VSUB + 1;
nuclear@9: 
nuclear@1: 		num_verts = uverts * vverts;
nuclear@1: 		varr = new Vector3[num_verts];
nuclear@1: 
nuclear@1: 		Vector3 *vptr = varr;
nuclear@9: 		for(i=0; i<vverts; i++) {
nuclear@9: 			float v = (float)i / (float)VSUB;
nuclear@9: 			float phi = v * M_PI;
nuclear@9: 			for(j=0; j<uverts; j++) {
nuclear@9: 				float u = (float)j / (float)uverts;
nuclear@9: 				float theta = u * M_PI * 2.0;
nuclear@1: 
nuclear@9: 				float x = sin(theta) * sin(phi);
nuclear@9: 				float y = cos(phi);
nuclear@9: 				float z = cos(theta) * sin(phi);
nuclear@1: 
nuclear@1: 				*vptr++ = Vector3(x, y, z);
nuclear@1: 			}
nuclear@1: 		}
nuclear@9: 
nuclear@9: 		num_indices = USUB * VSUB * 4;
nuclear@9: 		iarr = new unsigned int[num_indices];
nuclear@9: 
nuclear@9: 		unsigned int *iptr = iarr;
nuclear@9: 		for(i=0; i<VSUB; i++) {
nuclear@9: 			for(j=0; j<USUB; j++) {
nuclear@9: 				iptr[0] = i * uverts + j;
nuclear@9: 				iptr[1] = i * uverts + ((j + 1) % uverts);
nuclear@9: 				iptr[2] = iptr[1] + uverts;
nuclear@9: 				iptr[3] = iptr[0] + uverts;
nuclear@9: 				iptr += 4;
nuclear@9: 			}
nuclear@9: 		}
nuclear@9: 
nuclear@9: 		printlog("created sphere mesh\n");
nuclear@9: 		printlog("  vertices: %d (%d slices, %d stacks)\n", num_verts, uverts, vverts);
nuclear@9: 		printlog("  quads: %d (%d indices, %d usub, %d vsub)\n", USUB * VSUB, num_indices, USUB, VSUB);
nuclear@1: 	}
nuclear@1: 
nuclear@9: 	m3d_color(1, 1, 1);
nuclear@9: 
nuclear@5: 	m3d_vertex_array(&varr->x);
nuclear@9: 	m3d_draw_indexed(M3D_QUADS, iarr, num_indices);
nuclear@5: 	m3d_vertex_array(0);
nuclear@1: }