nuclear@0: #include <stdio.h>
nuclear@0: #include <stdlib.h>
nuclear@0: #include <assert.h>
nuclear@6: #include <vector>
nuclear@0: 
nuclear@8: #include "opengl.h"
nuclear@0: #ifndef __APPLE__
nuclear@0: #include <GL/glut.h>
nuclear@0: #else
nuclear@0: #include <GLUT/glut.h>
nuclear@0: #endif
nuclear@0: 
nuclear@8: #include "objfile.h"
nuclear@8: #include "mesh.h"
nuclear@6: #include "gobj.h"
nuclear@6: #include "co_xform.h"
nuclear@6: #include "co_dbgvis.h"
nuclear@8: #include "co_mesh.h"
nuclear@8: #include "co_phys.h"
nuclear@6: #include "sim.h"
nuclear@6: 
nuclear@0: static bool init();
nuclear@0: static void cleanup();
nuclear@0: static void display();
nuclear@0: static void idle();
nuclear@0: static void reshape(int x, int y);
nuclear@0: static void keyb(unsigned char key, int x, int y);
nuclear@0: static void mouse(int bn, int st, int x, int y);
nuclear@0: static void motion(int x, int y);
nuclear@8: static Mesh *load_mesh(const char *fname);
nuclear@0: 
nuclear@8: float cam_theta, cam_phi = 25, cam_dist = 10;
nuclear@6: 
nuclear@6: std::vector<GObject*> objects;
nuclear@6: SimWorld simworld;
nuclear@6: 
nuclear@0: 
nuclear@0: int main(int argc, char **argv)
nuclear@0: {
nuclear@0: 	glutInit(&argc, argv);
nuclear@0: 	glutInitWindowSize(800, 600);
nuclear@0: 	glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
nuclear@0: 	glutCreateWindow("component system test");
nuclear@0: 
nuclear@0: 	glutDisplayFunc(display);
nuclear@7: 	glutIdleFunc(idle);
nuclear@0: 	glutReshapeFunc(reshape);
nuclear@0: 	glutKeyboardFunc(keyb);
nuclear@0: 	glutMouseFunc(mouse);
nuclear@0: 	glutMotionFunc(motion);
nuclear@0: 
nuclear@0: 	if(!init()) {
nuclear@0: 		return 1;
nuclear@0: 	}
nuclear@0: 	atexit(cleanup);
nuclear@0: 
nuclear@0: 	glutMainLoop();
nuclear@0: 	return 0;
nuclear@0: }
nuclear@0: 
nuclear@0: static bool init()
nuclear@0: {
nuclear@8: 	init_opengl();
nuclear@8: 
nuclear@0: 	glEnable(GL_DEPTH_TEST);
nuclear@0: 	glEnable(GL_CULL_FACE);
nuclear@0: 
nuclear@6: 	glEnable(GL_LIGHTING);
nuclear@6: 	glEnable(GL_LIGHT0);
nuclear@6: 	float ldir[] = {-1, 1, 2, 0};
nuclear@6: 	glLightfv(GL_LIGHT0, GL_POSITION, ldir);
nuclear@6: 
nuclear@8: 	GObject *obj;
nuclear@8: 
nuclear@8: 	Mesh *mesh = load_mesh("lucy.obj");
nuclear@8: 	if(!mesh) {
nuclear@8: 		return false;
nuclear@8: 	}
nuclear@8: 
nuclear@8: 	obj = new GObject;
nuclear@6: 	obj->add_component(new CoXForm);
nuclear@6: 	obj->add_component(new CoPRS);
nuclear@8: 	obj->add_component(new CoMesh);
nuclear@8: 	gobj_co_prs(obj)->pos = Vector3(-3, 0, 0);
nuclear@8: 	gobj_co_mesh(obj)->mesh = mesh;
nuclear@6: 	objects.push_back(obj);
nuclear@6: 
nuclear@6: 	obj = new GObject;
nuclear@6: 	obj->add_component(new CoSphereVis);
nuclear@6: 	obj->add_component(new CoXForm);
nuclear@6: 	obj->add_component(new CoPRS);
nuclear@8: 	gobj_co_prs(obj)->pos = Vector3(3, 3, 0);
nuclear@8: 	obj->add_component(new CoRigid);
nuclear@8: 	obj->add_component(new CoCollider);
nuclear@8: 	gobj_co_collider(obj)->shape = new Sphere;
nuclear@6: 	objects.push_back(obj);
nuclear@8: 	simworld.add_object(obj);
nuclear@8: 
nuclear@8: 	obj = new GObject;
nuclear@8: 	obj->add_component(new CoXForm);
nuclear@8: 	obj->add_component(new CoRigid);
nuclear@8: 	obj->add_component(new CoCollider);
nuclear@8: 	gobj_co_collider(obj)->shape = new Plane;
nuclear@8: 	gobj_co_rigid(obj)->set_fixed(true);
nuclear@8: 	objects.push_back(obj);
nuclear@8: 	simworld.add_object(obj);
nuclear@6: 
nuclear@0: 	return true;
nuclear@0: }
nuclear@0: 
nuclear@0: static void cleanup()
nuclear@0: {
nuclear@8: 	for(size_t i=0; i<objects.size(); i++) {
nuclear@8: 		delete objects[i];
nuclear@8: 	}
nuclear@8: 	objects.clear();
nuclear@0: }
nuclear@0: 
nuclear@6: static void update()
nuclear@6: {
nuclear@6: 	static unsigned int prev_upd;
nuclear@6: 	unsigned int msec = glutGet(GLUT_ELAPSED_TIME);
nuclear@6: 	float dt = (float)(msec - prev_upd) / 1000.0f;
nuclear@6: 	prev_upd = msec;
nuclear@6: 
nuclear@6: 	for(size_t i=0; i<objects.size(); i++) {
nuclear@6: 		objects[i]->update(dt);
nuclear@6: 	}
nuclear@6: }
nuclear@6: 
nuclear@0: static void display()
nuclear@0: {
nuclear@6: 	update();
nuclear@6: 
nuclear@0: 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
nuclear@0: 
nuclear@6: 	glMatrixMode(GL_MODELVIEW);
nuclear@6: 	glLoadIdentity();
nuclear@6: 	glTranslatef(0, 0, -cam_dist);
nuclear@6: 	glRotatef(cam_phi, 1, 0, 0);
nuclear@6: 	glRotatef(cam_theta, 0, 1, 0);
nuclear@8: 	glTranslatef(0, -0.5, 0);
nuclear@6: 
nuclear@6: 	float floor_col[] = {0.2, 0.8, 0.2, 1};
nuclear@6: 	glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, floor_col);
nuclear@6: 
nuclear@6: 	glBegin(GL_QUADS);
nuclear@6: 	glNormal3f(0, 1, 0);
nuclear@6: 	glVertex3f(-10, 0, 10);
nuclear@6: 	glVertex3f(10, 0, 10);
nuclear@6: 	glVertex3f(10, 0, -10);
nuclear@6: 	glVertex3f(-10, 0, -10);
nuclear@6: 	glEnd();
nuclear@6: 
nuclear@8: 	float obj_col[] = {0.9, 0.9, 0.9, 1};
nuclear@8: 	glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, obj_col);
nuclear@8: 
nuclear@6: 	for(size_t i=0; i<objects.size(); i++) {
nuclear@8: 		objects[i]->draw();
nuclear@6: 	}
nuclear@6: 
nuclear@0: 	glutSwapBuffers();
nuclear@0: 	assert(glGetError() == GL_NO_ERROR);
nuclear@0: }
nuclear@0: 
nuclear@0: static void idle()
nuclear@0: {
nuclear@0: 	glutPostRedisplay();
nuclear@0: }
nuclear@0: 
nuclear@0: static void reshape(int x, int y)
nuclear@0: {
nuclear@0: 	glViewport(0, 0, x, y);
nuclear@0: 
nuclear@2: 	glMatrixMode(GL_PROJECTION);
nuclear@0: 	glLoadIdentity();
nuclear@0: 	gluPerspective(50.0, (float)x / (float)y, 0.5, 500.0);
nuclear@0: }
nuclear@0: 
nuclear@0: static void keyb(unsigned char key, int x, int y)
nuclear@0: {
nuclear@0: 	switch(key) {
nuclear@0: 	case 27:
nuclear@0: 		exit(0);
nuclear@0: 	}
nuclear@0: }
nuclear@0: 
nuclear@6: static bool bnstate[16];
nuclear@0: static int prev_x, prev_y;
nuclear@0: 
nuclear@0: static void mouse(int bn, int st, int x, int y)
nuclear@0: {
nuclear@6: 	bnstate[bn - GLUT_LEFT_BUTTON] = st == GLUT_DOWN;
nuclear@6: 	prev_x = x;
nuclear@6: 	prev_y = y;
nuclear@0: }
nuclear@0: 
nuclear@0: static void motion(int x, int y)
nuclear@0: {
nuclear@6: 	int dx = x - prev_x;
nuclear@6: 	int dy = y - prev_y;
nuclear@6: 	prev_x = x;
nuclear@6: 	prev_y = y;
nuclear@6: 
nuclear@6: 	if(bnstate[0]) {
nuclear@6: 		cam_theta += dx * 0.5;
nuclear@6: 		cam_phi += dy * 0.5;
nuclear@6: 
nuclear@6: 		if(cam_phi < -90) cam_phi = -90;
nuclear@6: 		if(cam_phi > 90) cam_phi = 90;
nuclear@6: 
nuclear@6: 		glutPostRedisplay();
nuclear@6: 	}
nuclear@6: 	if(bnstate[2]) {
nuclear@6: 		cam_dist += dy * 0.1;
nuclear@6: 
nuclear@6: 		if(cam_dist < 0.0) cam_dist = 0.0;
nuclear@6: 	}
nuclear@0: }
nuclear@8: 
nuclear@8: static Mesh *load_mesh(const char *fname)
nuclear@8: {
nuclear@8: 	struct objfile *objf = objf_load(fname);
nuclear@8: 	if(!objf) {
nuclear@8: 		return 0;
nuclear@8: 	}
nuclear@8: 	int nverts = objf_vertex_count(objf);
nuclear@8: 
nuclear@8: 	Mesh *m = new Mesh;
nuclear@8: 	m->set_attrib_data(MESH_ATTR_VERTEX, 3, nverts, objf_vertices(objf));
nuclear@8: 	m->set_attrib_data(MESH_ATTR_NORMAL, 3, nverts, objf_normals(objf));
nuclear@8: 	m->set_attrib_data(MESH_ATTR_TEXCOORD, 2, nverts, objf_texcoords(objf));
nuclear@8: 	objf_free(objf);
nuclear@8: 	return m;
nuclear@8: }