nuclear@0: #define _USE_MATH_DEFINES
nuclear@0: #include <math.h>
nuclear@0: #include "mesh.h"
nuclear@0: 
nuclear@0: #ifndef M_PI
nuclear@0: #define M_PI	3.14159265359
nuclear@0: #endif
nuclear@0: 
nuclear@0: void gen_sphere(std::vector<Vertex> &varr, float rad, int usub, int vsub)
nuclear@0: {
nuclear@0: }
nuclear@0: 
nuclear@0: static void torus_vertex(Vertex *vert, float u, float v, float rad, float tube_rad)
nuclear@0: {
nuclear@0: 	float theta = 2.0 * M_PI * u;
nuclear@0: 	float phi = 2.0 * M_PI * v;
nuclear@0: 
nuclear@0: 	float x = 0.0f;
nuclear@0: 	float y = sin(phi) * tube_rad;
nuclear@0: 	float z = cos(phi) * tube_rad + rad;
nuclear@0: 
nuclear@0: 	vert->pos.x = z * sin(theta);
nuclear@0: 	vert->pos.y = y;
nuclear@0: 	vert->pos.z = -x * sin(theta) + z * cos(theta);
nuclear@0: 	vert->pos.w = 1.0;
nuclear@0: 
nuclear@0: 	Vector3 cent;
nuclear@0: 	cent.x = sin(theta) * rad;
nuclear@0: 	cent.z = cos(theta) * rad;
nuclear@0: 
nuclear@0: 	vert->normal = normalize(Vector3(vert->pos) - cent);
nuclear@0: 	vert->color = Vector4(1.0, 1.0, 1.0, 1.0);
nuclear@0: }
nuclear@0: 
nuclear@0: void gen_torus(std::vector<Vertex> &varr, float rad, float tube_rad, int usub, int vsub)
nuclear@0: {
nuclear@0: 	int i, j;
nuclear@0: 
nuclear@0: 	if(usub < 3) usub = 3;
nuclear@0: 	if(vsub < 3) vsub = 3;
nuclear@0: 
nuclear@0: 	float du = 1.0f / (float)usub;
nuclear@0: 	float dv = 1.0f / (float)vsub;
nuclear@0: 
nuclear@0: 	
nuclear@0: 	for(i=0; i<usub; i++) {
nuclear@0: 		float u = (float)i / (float)usub;
nuclear@0: 		for(j=0; j<vsub; j++) {
nuclear@0: 			float v = (float)j / (float)vsub;
nuclear@0: 			Vertex vert[4];
nuclear@0: 
nuclear@0: 			torus_vertex(vert, u, v, rad, tube_rad);
nuclear@0: 			torus_vertex(vert + 1, u, v + dv, rad, tube_rad);
nuclear@0: 			torus_vertex(vert + 2, u + du, v + dv, rad, tube_rad);
nuclear@0: 			torus_vertex(vert + 3, u + du, v, rad, tube_rad);
nuclear@0: 
nuclear@0: 			varr.push_back(vert[0]);
nuclear@0: 			varr.push_back(vert[1]);
nuclear@0: 			varr.push_back(vert[2]);
nuclear@0: 			varr.push_back(vert[0]);
nuclear@0: 			varr.push_back(vert[2]);
nuclear@0: 			varr.push_back(vert[3]);
nuclear@0: 
nuclear@0: 		}
nuclear@0: 	}
nuclear@0: }