nuclear@1: #include <stdio.h>
nuclear@1: #include <stdlib.h>
nuclear@1: #include <assert.h>
nuclear@1: #include "opengl.h"
nuclear@1: #include "level.h"
nuclear@1: #include "camera.h"
nuclear@1: 
nuclear@1: void disp();
nuclear@1: void reshape(int x, int y);
nuclear@1: void keyb(unsigned char key, int x, int y);
nuclear@1: void mouse(int bn, int state, int x, int y);
nuclear@1: void motion(int x, int y);
nuclear@1: 
nuclear@1: static Level *level;
nuclear@1: static OrbitCamera cam;
nuclear@1: 
nuclear@1: int main(int argc, char **argv)
nuclear@1: {
nuclear@1: 	glutInit(&argc, argv);
nuclear@1: 	glutInitWindowSize(800, 600);
nuclear@1: 	glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE | GLUT_MULTISAMPLE);
nuclear@1: 	glutCreateWindow("prototype");
nuclear@1: 
nuclear@1: 	glutDisplayFunc(disp);
nuclear@1: 	glutReshapeFunc(reshape);
nuclear@1: 	glutKeyboardFunc(keyb);
nuclear@1: 	glutMouseFunc(mouse);
nuclear@1: 	glutMotionFunc(motion);
nuclear@1: 
nuclear@1: 	glewInit();
nuclear@1: 
nuclear@1: 	glEnable(GL_LIGHTING);
nuclear@1: 	glEnable(GL_LIGHT0);
nuclear@1: 	float ldir[] = {-1, 1, 2, 0};
nuclear@1: 	glLightfv(GL_LIGHT0, GL_POSITION, ldir);
nuclear@1: 	glEnable(GL_NORMALIZE);
nuclear@1: 
nuclear@1: 	glEnable(GL_DEPTH_TEST);
nuclear@1: 	glEnable(GL_CULL_FACE);
nuclear@1: 	glEnable(GL_MULTISAMPLE);
nuclear@1: 
nuclear@1: 	level = new Level;
nuclear@1: 	if(!level->load("foobar")) {
nuclear@1: 		return 1;
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	glutMainLoop();
nuclear@1: }
nuclear@1: 
nuclear@1: void disp()
nuclear@1: {
nuclear@1: 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
nuclear@1: 
nuclear@1: 	glMatrixMode(GL_MODELVIEW);
nuclear@1: 	glLoadIdentity();
nuclear@1: 	cam.use();
nuclear@1: 
nuclear@1: 	level->draw();
nuclear@1: 
nuclear@1: 	glutSwapBuffers();
nuclear@1: 	assert(glGetError() == GL_NO_ERROR);
nuclear@1: }
nuclear@1: 
nuclear@1: void reshape(int x, int y)
nuclear@1: {
nuclear@1: 	glViewport(0, 0, x, y);
nuclear@1: 	glMatrixMode(GL_PROJECTION);
nuclear@1: 	glLoadIdentity();
nuclear@1: 	gluPerspective(45.0, (float)x / (float)y, 1.0, 1000.0);
nuclear@1: }
nuclear@1: 
nuclear@1: void keyb(unsigned char key, int x, int y)
nuclear@1: {
nuclear@1: 	switch(key) {
nuclear@1: 	case 27:
nuclear@1: 		exit(0);
nuclear@1: 	}
nuclear@1: }
nuclear@1: 
nuclear@1: static int prev_x, prev_y;
nuclear@1: static bool bnstate[32];
nuclear@1: 
nuclear@1: void mouse(int bn, int state, int x, int y)
nuclear@1: {
nuclear@1: 	prev_x = x;
nuclear@1: 	prev_y = y;
nuclear@1: 	bnstate[bn - GLUT_LEFT_BUTTON] = state == GLUT_DOWN;
nuclear@1: }
nuclear@1: 
nuclear@1: void motion(int x, int y)
nuclear@1: {
nuclear@1: 	int dx = x - prev_x;
nuclear@1: 	int dy = y - prev_y;
nuclear@1: 	prev_x = x;
nuclear@1: 	prev_y = y;
nuclear@1: 
nuclear@1: 	if(bnstate[0]) {
nuclear@1: 		cam.input_rotate(dx * 0.01, dy * 0.01, 0);
nuclear@1: 		glutPostRedisplay();
nuclear@1: 	}
nuclear@1: 	if(bnstate[2]) {
nuclear@1: 		cam.input_zoom(dy * 0.1);
nuclear@1: 		glutPostRedisplay();
nuclear@1: 	}
nuclear@1: }