程式碼:
#include <GL/glut.h>
float angle[10]={0}, oldX=0, oldY=0;
int angleID=1;
void drawBody(){
glPushMatrix();
glScalef(1, 0.5, 0.5);
glutSolidCube(1);
glPopMatrix();
}
void drawArm(){
glPushMatrix();
glScalef(0.6, 0.3, 0.3);
glutSolidCube(1);
glPopMatrix();
}
void display()
{
{ ///Lighting
glColor3ub(166,132,100);
GLfloat pos[]={0, 0, -1, 0};
glLightfv(GL_LIGHT0, GL_POSITION, pos);
glEnable(GL_LIGHT0);
//glEnable(GL_LIGHTING);
glEnable(GL_DEPTH_TEST);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
}
glPushMatrix();
glTranslatef(0.5, 0, 0);///最後一步, 把樓下的 "會對Arm Joint做旋轉的東西" 再移到右上 掛上去 ver 4
glRotatef(angle[1], 0,0,1);///把下面整團, 都對中間做旋轉 ver 3
glTranslatef(0.25, 0,0);///這是把它往右移, Arm Joint在中間 ver 2
drawArm();///這是個Arm ver 1 Right Upper Arm
glPushMatrix();
glTranslatef(0.25, 0, 0);///最後一步, 把樓下的 "會對Arm Joint做旋轉的東西" 再移到右上 掛上去 ver 4
glRotatef(angle[2], 0,0,1);///把下面整團, 都對中間做旋轉 ver 3
glTranslatef(0.25, 0,0);///這是把它往右移, Arm Joint在中間 ver 2
drawArm(); ///Right Lower Arm
glPopMatrix();
glPopMatrix();
glPushMatrix();
glTranslatef(-0.5, 0, 0);///最後一步, 把樓下的 "會對Arm Joint做旋轉的東西" 再移到右上 掛上去 ver 4
glRotatef(-angle[3], 0,0,1);///把下面整團, 都對中間做旋轉 ver 3
glTranslatef(-0.25, 0,0);///這是把它往右移, Arm Joint在中間 ver 2
drawArm();///這是個Arm ver 1 Left Upper Arm
glPushMatrix();
glTranslatef(-0.25, 0, 0);///最後一步, 把樓下的 "會對Arm Joint做旋轉的東西" 再移到右上 掛上去 ver 4
glRotatef(-angle[4], 0,0,1);///把下面整團, 都對中間做旋轉 ver 3
glTranslatef(-0.25, 0,0);///這是把它往右移, Arm Joint在中間 ver 2
drawArm(); ///Left Lower Arm
glPopMatrix();
glPopMatrix();
drawBody();
glFlush();
}
void motion(int x, int y)
{ angle[angleID] -= y - oldY;
oldY=y; oldX=x;
}
void keyboard(unsigned char key, int x, int y)
{
if(key=='1') angleID=1;
if(key=='2') angleID=2;
if(key=='3') angleID=3;
if(key=='4') angleID=4;
}
void mouse(int button, int state, int x, int y){
if(state==GLUT_DOWN) { oldX=x; oldY=y; }
}
void timer(int t)
{
glutTimerFunc(20, timer, t+1);
//angle++;
glutPostRedisplay();
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutCreateWindow("T-R-T test");
glutDisplayFunc(display);
glutTimerFunc(20, timer, 0);
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutKeyboardFunc(keyboard);
glutMainLoop();
}
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