libanim: 2fe32e62e2a7 example/test.c

libanim

view example/test.c @ 8:2fe32e62e2a7

added an example program

author	John Tsiombikas <nuclear@member.fsf.org>
date	Fri, 01 Mar 2013 09:46:53 +0200
parents
children	b408f3f655e9

line source

1 #include <stdio.h>

2 #include <stdlib.h>

3 #include <assert.h>

5 #ifndef __APPLE__

6 #include <GL/glut.h>

7 #else

8 #include <GLUT/glut.h>

9 #endif

11 #include <vmath/vmath.h>

12 #include "anim.h"

14 struct body_part {

15 vec3_t pos, pivot, sz, color;

16 } parts[] = {

17 /* position pivot size color */

18 {{0, 1, 0}, {0, -1, 0}, {1.8, 2.8, 0.8},{1, 0, 1}}, /* torso */

20 {{-0.5, -2.5, 0}, {0, 1, 0}, {0.8, 2, 0.8}, {1, 0, 0}}, /* left-upper leg */

21 {{0.5, -2.5, 0}, {0, 1, 0}, {0.8, 2, 0.8}, {0, 1, 0}}, /* right-upper leg */

23 {{0, -2.1, 0}, {0, 1, 0}, {0.8, 2, 0.8}, {1, 0.5, 0.5}}, /* left-lower leg */

24 {{0, -2.1, 0}, {0, 1, 0}, {0.8, 2, 0.8}, {0.5, 1, 0.5}}, /* right-lower leg */

26 {{0, 2.6, 0}, {0, -0.5, 0}, {1.2, 1.2, 1.2},{0, 1, 1}}, /* head */

28 {{-1.3, 0.4, 0}, {0, 1, 0}, {0.8, 2, 0.8}, {0, 0, 1}}, /* left-upper arm */

29 {{1.3, 0.4, 0}, {0, 1, 0}, {0.8, 2, 0.8}, {1, 1, 0}}, /* right-upper arm */

31 {{0, -2.1, 0}, {0, 1, 0}, {0.8, 2, 0.8}, {0.5, 0.5, 1}}, /* left-lower arm */

32 {{0, -2.1, 0}, {0, 1, 0}, {0.8, 2, 0.8}, {1, 1, 0.5}}, /* right-lower arm */

33 };

35 enum {

36 NODE_TORSO,

37 NODE_LEFT_UPPER_LEG,

38 NODE_RIGHT_UPPER_LEG,

39 NODE_LEFT_LOWER_LEG,

40 NODE_RIGHT_LOWER_LEG,

41 NODE_HEAD,

42 NODE_LEFT_UPPER_ARM,

43 NODE_RIGHT_UPPER_ARM,

44 NODE_LEFT_LOWER_ARM,

45 NODE_RIGHT_LOWER_ARM,

47 NUM_NODES

48 };

50 int init(void);

51 void disp(void);

52 void idle(void);

53 void reshape(int x, int y);

54 void keyb(unsigned char key, int x, int y);

55 void mouse(int bn, int state, int x, int y);

56 void motion(int x, int y);

58 float cam_theta = 20, cam_phi = 20, cam_dist = 15;

59 struct anm_node *root;

61 struct anm_node *nodes[NUM_NODES];

63 int main(int argc, char **argv)

64 {

65 glutInitWindowSize(800, 600);

66 glutInit(&argc, argv);

67 glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);

68 glutCreateWindow("libanim example");

70 glutDisplayFunc(disp);

71 glutIdleFunc(idle);

72 glutReshapeFunc(reshape);

73 glutKeyboardFunc(keyb);

74 glutMouseFunc(mouse);

75 glutMotionFunc(motion);

77 if(init() == -1) {

78 return 1;

79 }

80 glutMainLoop();

81 return 0;

82 }

84 int init(void)

85 {

86 int i;

88 glPointSize(3);

90 glEnable(GL_DEPTH_TEST);

91 glEnable(GL_CULL_FACE);

92 glEnable(GL_LIGHTING);

93 glEnable(GL_LIGHT0);

95 root = nodes[0];

97 for(i=0; i<NUM_NODES; i++) {

98 nodes[i] = anm_create_node();

100 anm_set_pivot(nodes[i], parts[i].pivot);

101 anm_set_position(nodes[i], parts[i].pos, 0);

102 anm_set_extrapolator(nodes[i], ANM_EXTRAP_REPEAT);

103 }

104

105 anm_link_node(nodes[NODE_TORSO], nodes[NODE_HEAD]);

106 anm_link_node(nodes[NODE_TORSO], nodes[NODE_LEFT_UPPER_LEG]);

107 anm_link_node(nodes[NODE_TORSO], nodes[NODE_RIGHT_UPPER_LEG]);

108 anm_link_node(nodes[NODE_TORSO], nodes[NODE_LEFT_UPPER_ARM]);

109 anm_link_node(nodes[NODE_TORSO], nodes[NODE_RIGHT_UPPER_ARM]);

110 anm_link_node(nodes[NODE_LEFT_UPPER_LEG], nodes[NODE_LEFT_LOWER_LEG]);

111 anm_link_node(nodes[NODE_RIGHT_UPPER_LEG], nodes[NODE_RIGHT_LOWER_LEG]);

112 anm_link_node(nodes[NODE_LEFT_UPPER_ARM], nodes[NODE_LEFT_LOWER_ARM]);

113 anm_link_node(nodes[NODE_RIGHT_UPPER_ARM], nodes[NODE_RIGHT_LOWER_ARM]);

114

115 /* upper leg animation */

116 anm_set_rotation(nodes[NODE_LEFT_UPPER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(-15), 1, 0, 0), 0);

117 anm_set_rotation(nodes[NODE_LEFT_UPPER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(45), 1, 0, 0), 1000);

118 anm_set_rotation(nodes[NODE_LEFT_UPPER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(-15), 1, 0, 0), 2000);

119

120 anm_set_rotation(nodes[NODE_RIGHT_UPPER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(45), 1, 0, 0), 0);

121 anm_set_rotation(nodes[NODE_RIGHT_UPPER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(-15), 1, 0, 0), 1000);

122 anm_set_rotation(nodes[NODE_RIGHT_UPPER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(45), 1, 0, 0), 2000);

123

124 /* lower leg animation */

125 anm_set_rotation(nodes[NODE_LEFT_LOWER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(0), 1, 0, 0), 0);

126 anm_set_rotation(nodes[NODE_LEFT_LOWER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(-90), 1, 0, 0), 500);

127 anm_set_rotation(nodes[NODE_LEFT_LOWER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(-10), 1, 0, 0), 1000);

128 anm_set_rotation(nodes[NODE_LEFT_LOWER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(0), 1, 0, 0), 2000);

129

130 anm_set_rotation(nodes[NODE_RIGHT_LOWER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(-10), 1, 0, 0), 0);

131 anm_set_rotation(nodes[NODE_RIGHT_LOWER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(0), 1, 0, 0), 1000);

132 anm_set_rotation(nodes[NODE_RIGHT_LOWER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(-90), 1, 0, 0), 1500);

133 anm_set_rotation(nodes[NODE_RIGHT_LOWER_LEG], quat_rotate(quat_identity(), DEG_TO_RAD(-10), 1, 0, 0), 2000);

134

135 /* head animation */

136 anm_set_rotation(nodes[NODE_HEAD], quat_rotate(quat_identity(), DEG_TO_RAD(-10), 0, 1, 0), 0);

137 anm_set_rotation(nodes[NODE_HEAD], quat_rotate(quat_identity(), DEG_TO_RAD(10), 0, 1, 0), 1000);

138 anm_set_rotation(nodes[NODE_HEAD], quat_rotate(quat_identity(), DEG_TO_RAD(-10), 0, 1, 0), 2000);

139

140 /* torso animation */

141 anm_set_rotation(nodes[NODE_TORSO], quat_rotate(quat_identity(), DEG_TO_RAD(-8), 1, 0, 0), 0);

142 anm_set_rotation(nodes[NODE_TORSO], quat_rotate(quat_identity(), DEG_TO_RAD(0), 1, 0, 0), 500);

143 anm_set_rotation(nodes[NODE_TORSO], quat_rotate(quat_identity(), DEG_TO_RAD(-8), 1, 0, 0), 1000);

144 anm_set_rotation(nodes[NODE_TORSO], quat_rotate(quat_identity(), DEG_TO_RAD(0), 1, 0, 0), 1500);

145 anm_set_rotation(nodes[NODE_TORSO], quat_rotate(quat_identity(), DEG_TO_RAD(-8), 1, 0, 0), 2000);

146

147 /* upper arm animation */

148 anm_set_rotation(nodes[NODE_LEFT_UPPER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(30), 1, 0, 0), 0);

149 anm_set_rotation(nodes[NODE_LEFT_UPPER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(-25), 1, 0, 0), 1000);

150 anm_set_rotation(nodes[NODE_LEFT_UPPER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(30), 1, 0, 0), 2000);

151

152 anm_set_rotation(nodes[NODE_RIGHT_UPPER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(-25), 1, 0, 0), 0);

153 anm_set_rotation(nodes[NODE_RIGHT_UPPER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(30), 1, 0, 0), 1000);

154 anm_set_rotation(nodes[NODE_RIGHT_UPPER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(-25), 1, 0, 0), 2000);

155

156 /* lower arm animation */

157 anm_set_rotation(nodes[NODE_LEFT_LOWER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(40), 1, 0, 0), 0);

158 anm_set_rotation(nodes[NODE_LEFT_LOWER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(0), 1, 0, 0), 1000);

159 anm_set_rotation(nodes[NODE_LEFT_LOWER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(0), 1, 0, 0), 1500);

160 anm_set_rotation(nodes[NODE_LEFT_LOWER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(40), 1, 0, 0), 2000);

161

162 anm_set_rotation(nodes[NODE_RIGHT_LOWER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(0), 1, 0, 0), 0);

163 anm_set_rotation(nodes[NODE_RIGHT_LOWER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(0), 1, 0, 0), 500);

164 anm_set_rotation(nodes[NODE_RIGHT_LOWER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(40), 1, 0, 0), 1000);

165 anm_set_rotation(nodes[NODE_RIGHT_LOWER_ARM], quat_rotate(quat_identity(), DEG_TO_RAD(0), 1, 0, 0), 2000);

166

167 return 0;

168 }

169

170 void disp(void)

171 {

172 int i;

173 float lpos[] = {-1, 1, 1.5, 0};

174 unsigned int msec = glutGet(GLUT_ELAPSED_TIME);

175

176 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

177

178 glMatrixMode(GL_MODELVIEW);

179 glLoadIdentity();

180

181 glLightfv(GL_LIGHT0, GL_POSITION, lpos);

182

183 glTranslatef(0, 0, -cam_dist);

184 glRotatef(cam_phi, 1, 0, 0);

185 glRotatef(cam_theta, 0, 1, 0);

186

187 for(i=0; i<NUM_NODES; i++) {

188 float color[4] = {0, 0, 0, 1};

189 mat4_t xform;

190

191 color[0] = parts[i].color.x;

192 color[1] = parts[i].color.y;

193 color[2] = parts[i].color.z;

194

195 glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, color);

196 glColor4fv(color);

197

198 anm_get_matrix(nodes[i], xform, msec);

199

200 glPushMatrix();

201 glMultTransposeMatrixf((float*)xform);

202

203 glScalef(parts[i].sz.x, parts[i].sz.y, parts[i].sz.z);

204 glutSolidCube(1.0);

205 /*glutWireSphere(0.6, 16, 8);*/

206

207 glPopMatrix();

208 }

209

210 glutSwapBuffers();

211 assert(glGetError() == GL_NO_ERROR);

212 }

213

214 void idle(void)

215 {

216 glutPostRedisplay();

217 }

218

219 void reshape(int x, int y)

220 {

221 glViewport(0, 0, x, y);

222

223 glMatrixMode(GL_PROJECTION);

224 glLoadIdentity();

225 gluPerspective(45.0, (float)x / (float)y, 0.5, 500.0);

226 }

227

228 void keyb(unsigned char key, int x, int y)

229 {

230 switch(key) {

231 case 27:

232 exit(0);

233 }

234 }

235

236 int bnstate[64];

237 int prev_x, prev_y;

238

239 void mouse(int bn, int state, int x, int y)

240 {

241 int idx = bn - GLUT_LEFT_BUTTON;

242 int down = state == GLUT_DOWN ? 1 : 0;

243

244 bnstate[idx] = down;

245

246 prev_x = x;

247 prev_y = y;

248 }

249

250 void motion(int x, int y)

251 {

252 int dx = x - prev_x;

253 int dy = y - prev_y;

254 prev_x = x;

255 prev_y = y;

256

257 if(bnstate[0]) {

258 cam_theta += dx * 0.5;

259 cam_phi += dy * 0.5;

260

261 if(cam_phi < -90) {

262 cam_phi = -90;

263 }

264 if(cam_phi > 90) {

265 cam_phi = 90;

266 }

267 glutPostRedisplay();

268 }

269 if(bnstate[2]) {

270 cam_dist += dy * 0.1;

271 if(cam_dist < 0.0) {

272 cam_dist = 0.0;

273 }

274 glutPostRedisplay();

275 }

276 }