nuclear@8: #include <stdio.h>
nuclear@8: #include <stdlib.h>
nuclear@8: #include <assert.h>
nuclear@8: 
nuclear@8: #ifndef __APPLE__
nuclear@8: #include <GL/glut.h>
nuclear@8: #else
nuclear@8: #include <GLUT/glut.h>
nuclear@8: #endif
nuclear@8: 
nuclear@8: #include <vmath/vmath.h>
nuclear@8: #include "anim.h"
nuclear@8: 
nuclear@8: struct body_part {
nuclear@8: 	vec3_t pos, pivot, sz, color;
nuclear@8: } parts[] = {
nuclear@8: 	/* position			pivot			size			color */
nuclear@8: 	{{0, 1, 0},			{0, -1, 0},		{1.8, 2.8, 0.8},{1, 0, 1}},		/* torso */
nuclear@8: 
nuclear@8: 	{{-0.5, -2.5, 0},	{0, 1, 0},		{0.8, 2, 0.8},	{1, 0, 0}},		/* left-upper leg */
nuclear@8: 	{{0.5, -2.5, 0},	{0, 1, 0},		{0.8, 2, 0.8},	{0, 1, 0}},		/* right-upper leg */
nuclear@8: 
nuclear@8: 	{{0, -2.1, 0},		{0, 1, 0},		{0.8, 2, 0.8},	{1, 0.5, 0.5}},	/* left-lower leg */
nuclear@8: 	{{0, -2.1, 0},		{0, 1, 0},		{0.8, 2, 0.8},	{0.5, 1, 0.5}},	/* right-lower leg */
nuclear@8: 
nuclear@8: 	{{0, 2.6, 0},		{0, -0.5, 0},	{1.2, 1.2, 1.2},{0, 1, 1}},	/* head */
nuclear@8: 
nuclear@8: 	{{-1.3, 0.4, 0},		{0, 1, 0},		{0.8, 2, 0.8},	{0, 0, 1}},	/* left-upper arm */
nuclear@8: 	{{1.3, 0.4, 0},		{0, 1, 0},		{0.8, 2, 0.8},	{1, 1, 0}},		/* right-upper arm */
nuclear@8: 
nuclear@8: 	{{0, -2.1, 0},		{0, 1, 0},		{0.8, 2, 0.8},	{0.5, 0.5, 1}},	/* left-lower arm */
nuclear@8: 	{{0, -2.1, 0},		{0, 1, 0},		{0.8, 2, 0.8},	{1, 1, 0.5}},	/* right-lower arm */
nuclear@8: };
nuclear@8: 
nuclear@8: enum {
nuclear@8: 	NODE_TORSO,
nuclear@8: 	NODE_LEFT_UPPER_LEG,
nuclear@8: 	NODE_RIGHT_UPPER_LEG,
nuclear@8: 	NODE_LEFT_LOWER_LEG,
nuclear@8: 	NODE_RIGHT_LOWER_LEG,
nuclear@8: 	NODE_HEAD,
nuclear@8: 	NODE_LEFT_UPPER_ARM,
nuclear@8: 	NODE_RIGHT_UPPER_ARM,
nuclear@8: 	NODE_LEFT_LOWER_ARM,
nuclear@8: 	NODE_RIGHT_LOWER_ARM,
nuclear@8: 
nuclear@8: 	NUM_NODES
nuclear@8: };
nuclear@8: 
nuclear@8: int init(void);
nuclear@8: void disp(void);
nuclear@8: void idle(void);
nuclear@8: void reshape(int x, int y);
nuclear@8: void keyb(unsigned char key, int x, int y);
nuclear@8: void mouse(int bn, int state, int x, int y);
nuclear@8: void motion(int x, int y);
nuclear@8: 
nuclear@8: float cam_theta = 20, cam_phi = 20, cam_dist = 15;
nuclear@8: struct anm_node *root;
nuclear@8: 
nuclear@8: struct anm_node *nodes[NUM_NODES];
nuclear@8: 
nuclear@8: int main(int argc, char **argv)
nuclear@8: {
nuclear@8: 	glutInitWindowSize(800, 600);
nuclear@8: 	glutInit(&argc, argv);
nuclear@8: 	glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
nuclear@8: 	glutCreateWindow("libanim example");
nuclear@8: 
nuclear@8: 	glutDisplayFunc(disp);
nuclear@8: 	glutIdleFunc(idle);
nuclear@8: 	glutReshapeFunc(reshape);
nuclear@8: 	glutKeyboardFunc(keyb);
nuclear@8: 	glutMouseFunc(mouse);
nuclear@8: 	glutMotionFunc(motion);
nuclear@8: 
nuclear@8: 	if(init() == -1) {
nuclear@8: 		return 1;
nuclear@8: 	}
nuclear@8: 	glutMainLoop();
nuclear@8: 	return 0;
nuclear@8: }
nuclear@8: 
nuclear@8: int init(void)
nuclear@8: {
nuclear@8: 	int i;
nuclear@8: 
nuclear@8: 	glPointSize(3);
nuclear@8: 
nuclear@8: 	glEnable(GL_DEPTH_TEST);
nuclear@8: 	glEnable(GL_CULL_FACE);
nuclear@8: 	glEnable(GL_LIGHTING);
nuclear@8: 	glEnable(GL_LIGHT0);
nuclear@8: 
nuclear@8: 	root = nodes[0];
nuclear@8: 
nuclear@8: 	for(i=0; i<NUM_NODES; i++) {
nuclear@8: 		nodes[i] = anm_create_node();
nuclear@8: 
nuclear@8: 		anm_set_pivot(nodes[i], parts[i].pivot);
nuclear@8: 		anm_set_position(nodes[i], parts[i].pos, 0);
nuclear@8: 		anm_set_extrapolator(nodes[i], ANM_EXTRAP_REPEAT);
nuclear@8: 	}
nuclear@8: 
nuclear@8: 	anm_link_node(nodes[NODE_TORSO], nodes[NODE_HEAD]);
nuclear@8: 	anm_link_node(nodes[NODE_TORSO], nodes[NODE_LEFT_UPPER_LEG]);
nuclear@8: 	anm_link_node(nodes[NODE_TORSO], nodes[NODE_RIGHT_UPPER_LEG]);
nuclear@8: 	anm_link_node(nodes[NODE_TORSO], nodes[NODE_LEFT_UPPER_ARM]);
nuclear@8: 	anm_link_node(nodes[NODE_TORSO], nodes[NODE_RIGHT_UPPER_ARM]);
nuclear@8: 	anm_link_node(nodes[NODE_LEFT_UPPER_LEG], nodes[NODE_LEFT_LOWER_LEG]);
nuclear@8: 	anm_link_node(nodes[NODE_RIGHT_UPPER_LEG], nodes[NODE_RIGHT_LOWER_LEG]);
nuclear@8: 	anm_link_node(nodes[NODE_LEFT_UPPER_ARM], nodes[NODE_LEFT_LOWER_ARM]);
nuclear@8: 	anm_link_node(nodes[NODE_RIGHT_UPPER_ARM], nodes[NODE_RIGHT_LOWER_ARM]);
nuclear@8: 
nuclear@8: 	/* upper leg animation */
nuclear@8: 	anm_set_rotation(nodes[NODE_LEFT_UPPER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(-15), 1, 0, 0), 0);
nuclear@8: 	anm_set_rotation(nodes[NODE_LEFT_UPPER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(45), 1, 0, 0), 1000);
nuclear@8: 	anm_set_rotation(nodes[NODE_LEFT_UPPER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(-15), 1, 0, 0), 2000);
nuclear@8: 
nuclear@8: 	anm_set_rotation(nodes[NODE_RIGHT_UPPER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(45), 1, 0, 0), 0);
nuclear@8: 	anm_set_rotation(nodes[NODE_RIGHT_UPPER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(-15), 1, 0, 0), 1000);
nuclear@8: 	anm_set_rotation(nodes[NODE_RIGHT_UPPER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(45), 1, 0, 0), 2000);
nuclear@8: 
nuclear@8: 	/* lower leg animation */
nuclear@8: 	anm_set_rotation(nodes[NODE_LEFT_LOWER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(0), 1, 0, 0), 0);
nuclear@8: 	anm_set_rotation(nodes[NODE_LEFT_LOWER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(-90), 1, 0, 0), 500);
nuclear@8: 	anm_set_rotation(nodes[NODE_LEFT_LOWER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(-10), 1, 0, 0), 1000);
nuclear@8: 	anm_set_rotation(nodes[NODE_LEFT_LOWER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(0), 1, 0, 0), 2000);
nuclear@8: 
nuclear@8: 	anm_set_rotation(nodes[NODE_RIGHT_LOWER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(-10), 1, 0, 0), 0);
nuclear@8: 	anm_set_rotation(nodes[NODE_RIGHT_LOWER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(0), 1, 0, 0), 1000);
nuclear@8: 	anm_set_rotation(nodes[NODE_RIGHT_LOWER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(-90), 1, 0, 0), 1500);
nuclear@8: 	anm_set_rotation(nodes[NODE_RIGHT_LOWER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(-10), 1, 0, 0), 2000);
nuclear@8: 
nuclear@8: 	/* head animation */
nuclear@8: 	anm_set_rotation(nodes[NODE_HEAD], quat_rotate(quat_identity(), DEG_TO_RAD(-10), 0, 1, 0), 0);
nuclear@8: 	anm_set_rotation(nodes[NODE_HEAD], quat_rotate(quat_identity(), DEG_TO_RAD(10), 0, 1, 0), 1000);
nuclear@8: 	anm_set_rotation(nodes[NODE_HEAD], quat_rotate(quat_identity(), DEG_TO_RAD(-10), 0, 1, 0), 2000);
nuclear@8: 
nuclear@8: 	/* torso animation */
nuclear@8: 	anm_set_rotation(nodes[NODE_TORSO], quat_rotate(quat_identity(), DEG_TO_RAD(-8), 1, 0, 0), 0);
nuclear@8: 	anm_set_rotation(nodes[NODE_TORSO], quat_rotate(quat_identity(), DEG_TO_RAD(0), 1, 0, 0), 500);
nuclear@8: 	anm_set_rotation(nodes[NODE_TORSO], quat_rotate(quat_identity(), DEG_TO_RAD(-8), 1, 0, 0), 1000);
nuclear@8: 	anm_set_rotation(nodes[NODE_TORSO], quat_rotate(quat_identity(), DEG_TO_RAD(0), 1, 0, 0), 1500);
nuclear@8: 	anm_set_rotation(nodes[NODE_TORSO], quat_rotate(quat_identity(), DEG_TO_RAD(-8), 1, 0, 0), 2000);
nuclear@8: 
nuclear@8: 	/* upper arm animation */
nuclear@8: 	anm_set_rotation(nodes[NODE_LEFT_UPPER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(30), 1, 0, 0), 0);
nuclear@8: 	anm_set_rotation(nodes[NODE_LEFT_UPPER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(-25), 1, 0, 0), 1000);
nuclear@8: 	anm_set_rotation(nodes[NODE_LEFT_UPPER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(30), 1, 0, 0), 2000);
nuclear@8: 
nuclear@8: 	anm_set_rotation(nodes[NODE_RIGHT_UPPER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(-25), 1, 0, 0), 0);
nuclear@8: 	anm_set_rotation(nodes[NODE_RIGHT_UPPER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(30), 1, 0, 0), 1000);
nuclear@8: 	anm_set_rotation(nodes[NODE_RIGHT_UPPER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(-25), 1, 0, 0), 2000);
nuclear@8: 
nuclear@8: 	/* lower arm animation */
nuclear@8: 	anm_set_rotation(nodes[NODE_LEFT_LOWER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(40), 1, 0, 0), 0);
nuclear@8: 	anm_set_rotation(nodes[NODE_LEFT_LOWER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(0), 1, 0, 0), 1000);
nuclear@8: 	anm_set_rotation(nodes[NODE_LEFT_LOWER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(0), 1, 0, 0), 1500);
nuclear@8: 	anm_set_rotation(nodes[NODE_LEFT_LOWER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(40), 1, 0, 0), 2000);
nuclear@8: 
nuclear@8: 	anm_set_rotation(nodes[NODE_RIGHT_LOWER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(0), 1, 0, 0), 0);
nuclear@8: 	anm_set_rotation(nodes[NODE_RIGHT_LOWER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(0), 1, 0, 0), 500);
nuclear@8: 	anm_set_rotation(nodes[NODE_RIGHT_LOWER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(40), 1, 0, 0), 1000);
nuclear@8: 	anm_set_rotation(nodes[NODE_RIGHT_LOWER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(0), 1, 0, 0), 2000);
nuclear@8: 
nuclear@8: 	return 0;
nuclear@8: }
nuclear@8: 
nuclear@8: void disp(void)
nuclear@8: {
nuclear@8: 	int i;
nuclear@8: 	float lpos[] = {-1, 1, 1.5, 0};
nuclear@8: 	unsigned int msec = glutGet(GLUT_ELAPSED_TIME);
nuclear@8: 
nuclear@8: 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
nuclear@8: 
nuclear@8: 	glMatrixMode(GL_MODELVIEW);
nuclear@8: 	glLoadIdentity();
nuclear@8: 
nuclear@8: 	glLightfv(GL_LIGHT0, GL_POSITION, lpos);
nuclear@8: 
nuclear@8: 	glTranslatef(0, 0, -cam_dist);
nuclear@8: 	glRotatef(cam_phi, 1, 0, 0);
nuclear@8: 	glRotatef(cam_theta, 0, 1, 0);
nuclear@8: 
nuclear@8: 	for(i=0; i<NUM_NODES; i++) {
nuclear@8: 		float color[4] = {0, 0, 0, 1};
nuclear@8: 		mat4_t xform;
nuclear@8: 
nuclear@8: 		color[0] = parts[i].color.x;
nuclear@8: 		color[1] = parts[i].color.y;
nuclear@8: 		color[2] = parts[i].color.z;
nuclear@8: 
nuclear@8: 		glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, color);
nuclear@8: 		glColor4fv(color);
nuclear@8: 
nuclear@8: 		anm_get_matrix(nodes[i], xform, msec);
nuclear@8: 
nuclear@8: 		glPushMatrix();
nuclear@8: 		glMultTransposeMatrixf((float*)xform);
nuclear@8: 
nuclear@8: 		glScalef(parts[i].sz.x, parts[i].sz.y, parts[i].sz.z);
nuclear@8: 		glutSolidCube(1.0);
nuclear@8: 		/*glutWireSphere(0.6, 16, 8);*/
nuclear@8: 
nuclear@8: 		glPopMatrix();
nuclear@8: 	}
nuclear@8: 
nuclear@8: 	glutSwapBuffers();
nuclear@8: 	assert(glGetError() == GL_NO_ERROR);
nuclear@8: }
nuclear@8: 
nuclear@8: void idle(void)
nuclear@8: {
nuclear@8: 	glutPostRedisplay();
nuclear@8: }
nuclear@8: 
nuclear@8: void reshape(int x, int y)
nuclear@8: {
nuclear@8: 	glViewport(0, 0, x, y);
nuclear@8: 
nuclear@8: 	glMatrixMode(GL_PROJECTION);
nuclear@8: 	glLoadIdentity();
nuclear@8: 	gluPerspective(45.0, (float)x / (float)y, 0.5, 500.0);
nuclear@8: }
nuclear@8: 
nuclear@8: void keyb(unsigned char key, int x, int y)
nuclear@8: {
nuclear@8: 	switch(key) {
nuclear@8: 	case 27:
nuclear@8: 		exit(0);
nuclear@8: 	}
nuclear@8: }
nuclear@8: 
nuclear@8: int bnstate[64];
nuclear@8: int prev_x, prev_y;
nuclear@8: 
nuclear@8: void mouse(int bn, int state, int x, int y)
nuclear@8: {
nuclear@8: 	int idx = bn - GLUT_LEFT_BUTTON;
nuclear@8: 	int down = state == GLUT_DOWN ? 1 : 0;
nuclear@8: 
nuclear@8: 	bnstate[idx] = down;
nuclear@8: 
nuclear@8: 	prev_x = x;
nuclear@8: 	prev_y = y;
nuclear@8: }
nuclear@8: 
nuclear@8: void motion(int x, int y)
nuclear@8: {
nuclear@8: 	int dx = x - prev_x;
nuclear@8: 	int dy = y - prev_y;
nuclear@8: 	prev_x = x;
nuclear@8: 	prev_y = y;
nuclear@8: 
nuclear@8: 	if(bnstate[0]) {
nuclear@8: 		cam_theta += dx * 0.5;
nuclear@8: 		cam_phi += dy * 0.5;
nuclear@8: 
nuclear@8: 		if(cam_phi < -90) {
nuclear@8: 			cam_phi = -90;
nuclear@8: 		}
nuclear@8: 		if(cam_phi > 90) {
nuclear@8: 			cam_phi = 90;
nuclear@8: 		}
nuclear@8: 		glutPostRedisplay();
nuclear@8: 	}
nuclear@8: 	if(bnstate[2]) {
nuclear@8: 		cam_dist += dy * 0.1;
nuclear@8: 		if(cam_dist < 0.0) {
nuclear@8: 			cam_dist = 0.0;
nuclear@8: 		}
nuclear@8: 		glutPostRedisplay();
nuclear@8: 	}
nuclear@8: }