1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/main.cc	Mon Jan 11 16:51:16 2016 +0200
     1.3 @@ -0,0 +1,142 @@
     1.4 +#include <stdio.h>
     1.5 +#include <stdlib.h>
     1.6 +#include <assert.h>
     1.7 +#include <GL/glew.h>
     1.8 +#ifdef __APPLE__
     1.9 +#include <GLUT/glut.h>
    1.10 +#else
    1.11 +#include <GL/glut.h>
    1.12 +#endif
    1.13 +#include "object.h"
    1.14 +#include "cloth.h"
    1.15 +
    1.16 +bool init();
    1.17 +void cleanup();
    1.18 +void display();
    1.19 +void idle();
    1.20 +void reshape(int x, int y);
    1.21 +void keyboard(unsigned char key, int x, int y);
    1.22 +void mouse(int bn, int st, int x, int y);
    1.23 +void motion(int x, int y);
    1.24 +
    1.25 +float cam_theta, cam_phi, cam_dist = 8;
    1.26 +
    1.27 +Cloth cloth;
    1.28 +
    1.29 +int main(int argc, char **argv)
    1.30 +{
    1.31 +	glutInit(&argc, argv);
    1.32 +	glutInitWindowSize(800, 600);
    1.33 +	glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
    1.34 +	glutCreateWindow("foo");
    1.35 +
    1.36 +	glutDisplayFunc(display);
    1.37 +	glutIdleFunc(idle);
    1.38 +	glutReshapeFunc(reshape);
    1.39 +	glutKeyboardFunc(keyboard);
    1.40 +	glutMouseFunc(mouse);
    1.41 +	glutMotionFunc(motion);
    1.42 +
    1.43 +	if(!init()) {
    1.44 +		return 1;
    1.45 +	}
    1.46 +	atexit(cleanup);
    1.47 +
    1.48 +	glutMainLoop();
    1.49 +}
    1.50 +
    1.51 +
    1.52 +bool init()
    1.53 +{
    1.54 +	glewInit();
    1.55 +
    1.56 +	glEnable(GL_DEPTH_TEST);
    1.57 +	glEnable(GL_CULL_FACE);
    1.58 +	//glEnable(GL_LIGHTING);
    1.59 +	glEnable(GL_LIGHT0);
    1.60 +
    1.61 +	cloth.create_rect(32, 32, 10, 10);
    1.62 +
    1.63 +	Matrix4x4 xform = Matrix4x4(1, 0, 0, 0,
    1.64 +								0, 1, 0, 0,
    1.65 +								0, 0, 1, 0,
    1.66 +								0, 1, 0, 1);
    1.67 +	cloth.transform(xform);
    1.68 +
    1.69 +
    1.70 +	return true;
    1.71 +}
    1.72 +
    1.73 +void cleanup()
    1.74 +{
    1.75 +}
    1.76 +
    1.77 +void display()
    1.78 +{
    1.79 +	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    1.80 +
    1.81 +	glMatrixMode(GL_MODELVIEW);
    1.82 +	glLoadIdentity();
    1.83 +	glTranslatef(0, 0, -cam_dist);
    1.84 +	glRotatef(cam_phi, 1, 0, 0);
    1.85 +	glRotatef(cam_theta, 0, 1, 0);
    1.86 +
    1.87 +	cloth.draw();
    1.88 +
    1.89 +	glutSwapBuffers();
    1.90 +	assert(glGetError() == GL_NO_ERROR);
    1.91 +}
    1.92 +
    1.93 +void idle()
    1.94 +{
    1.95 +	glutPostRedisplay();
    1.96 +}
    1.97 +
    1.98 +void reshape(int x, int y)
    1.99 +{
   1.100 +	glViewport(0, 0, x, y);
   1.101 +
   1.102 +	glMatrixMode(GL_PROJECTION);
   1.103 +	glLoadIdentity();
   1.104 +	gluPerspective(50.0, (float)x / (float)y, 0.5, 500.0);
   1.105 +}
   1.106 +
   1.107 +void keyboard(unsigned char key, int x, int y)
   1.108 +{
   1.109 +	switch(key) {
   1.110 +	case 27:
   1.111 +		exit(0);
   1.112 +	}
   1.113 +}
   1.114 +
   1.115 +static bool bnstate[16];
   1.116 +static int prev_x, prev_y;
   1.117 +
   1.118 +void mouse(int bn, int st, int x, int y)
   1.119 +{
   1.120 +	prev_x = x;
   1.121 +	prev_y = y;
   1.122 +	bnstate[bn - GLUT_LEFT_BUTTON] = st == GLUT_DOWN;
   1.123 +}
   1.124 +
   1.125 +void motion(int x, int y)
   1.126 +{
   1.127 +	int dx = x - prev_x;
   1.128 +	int dy = y - prev_y;
   1.129 +	prev_x = x;
   1.130 +	prev_y = y;
   1.131 +
   1.132 +	if(!dx && !dy) return;
   1.133 +
   1.134 +	if(bnstate[0]) {
   1.135 +		cam_theta += dx * 0.5;
   1.136 +		cam_phi += dy * 0.5;
   1.137 +
   1.138 +		if(cam_phi < -90) cam_phi = -90;
   1.139 +		if(cam_phi > 90) cam_phi = 90;
   1.140 +	}
   1.141 +	if(bnstate[2]) {
   1.142 +		cam_dist += dy * 0.1;
   1.143 +		if(cam_dist < 0.0) cam_dist = 0.0;
   1.144 +	}
   1.145 +}