Week 13

Practice T-R-T functions

Add mouse, motion functions

CODE : 

float angle=45,oldx=0;

void mouse(int button, int state, int x, int y){

oldx = x;

}

void motion(int x,int y){

angle+=(x-oldx);

oldx = x;

glutPostRedisplay();///再呼叫一次display

}

void display()

{

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

glColor3f(1,1,1);

glRectf(0.5, 0.5, -0.5, -0.5);

glPushMatrix();

glTranslatef(0.5,0.5,0);

glRotatef(angle ,0,0,1);

glTranslatef(-0.5 , -0.4 , 0);

glColor3f(1,0,0);

glRectf(0.5,0.5,1.0,0.3);

glPopMatrix();

glutSwapBuffers();

}

int main(int argc, char **argv)

{

glutInit(&argc, argv);

glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

//glutInitWindowSize(600,600);

glutCreateWindow("week13 rect TRT");

glutMouseFunc(mouse);

glutMotionFunc(motion);

glutDisplayFunc(display);

glutMainLoop();

return 0;

}

#include <GL/glut.h>

#include <GL/glut.h>

float angle=0,oldx=0;

void mouse(int button, int state, int x, int y){

oldx = x;

}

void motion(int x,int y){

angle+=(x-oldx);

oldx = x;

glutPostRedisplay();

}

void display()

{

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

glColor3f(1,1,1);//白色

glRectf(0.3, 0.5, -0.3, -0.2);///身體瘦身

glPushMatrix();///右半邊

glTranslatef(0.3,0.5,0);///掛的位置也改了

glRotatef(angle ,0,0,1);

glTranslatef(-0.3 , -0.4 , 0);

glColor3f(1,0,0);

glRectf(0.3,0.5,0.8,0.3);

glPushMatrix();

glTranslatef(0.8, 0.4, 0);///(3)把下手肘掛在關節上

glRotatef(angle ,0,0,1);///(2)旋轉

glTranslatef(-0.8, -0.4, 0);///(1)把下手肘的旋轉中心，放正中心

glColor3f(0,1,0);///綠色

glRectf(0.8,0.5,1.1,0.3);///再畫下手肘

glPopMatrix();

glPopMatrix();

glutSwapBuffers();

}

int main(int argc, char **argv)

{

glutInit(&argc, argv);

glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

//glutInitWindowSize(600,600);

glutCreateWindow("week13 rect TRT");

glutMouseFunc(mouse);

glutMotionFunc(motion);

glutDisplayFunc(display);

glutMainLoop();

return 0;

}

float angle[20],oldx=0;

int angleID=0;

void keyboard( unsigned char key,int x,int y){

if( key == '0' ) angleID=0;

if( key == '1' ) angleID=1;

if( key == '2' ) angleID=2;

if( key == '3' ) angleID=3;

}

void mouse(int button, int state, int x, int y){

oldx = x;

}

void motion(int x,int y){

angle[angleID]+=(x-oldx);

oldx = x;

glutPostRedisplay();

}

void display()

{

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

glColor3f(1,1,1);//白色

glRectf(0.3, 0.5, -0.3, -0.2);///身體瘦身

glPushMatrix();

glTranslatef(0.3,0.5,0);///掛的位置也改了

glRotatef(angle[0] ,0,0,1);

glTranslatef(-0.3 , -0.4 , 0);

glColor3f(1,0,0);

glRectf(0.3,0.5,0.8,0.3);

glPushMatrix();

glTranslatef(0.8, 0.4, 0);///(3)把下手肘掛在關節上

glRotatef(angle[1] ,0,0,1);///(2)旋轉

glTranslatef(-0.8, -0.4, 0);///(1)把下手肘的旋轉中心，放正中心

glColor3f(0,1,0);///綠色

glRectf(0.8,0.5,1.1,0.3);///再畫下手肘

glPopMatrix();

glPopMatrix();

glPushMatrix();///左半邊

glTranslatef(-0.3,0.5,0);///掛的位置也改了

glRotatef(angle[2] ,0,0,1);

glTranslatef(0.3 , -0.4 , 0);

glColor3f(1,0,0);

glRectf(-0.3,0.5,-0.8,0.3);

glPushMatrix();

glTranslatef(-0.8, 0.4, 0);///(3)把下手肘掛在關節上

glRotatef(angle[3] ,0,0,1);///(2)旋轉

glTranslatef(0.8, -0.4, 0);///(1)把下手肘的旋轉中心，放正中心

glColor3f(0,1,0);///綠色

glRectf(-0.8,0.5,-1.1,0.3);///再畫下手肘

glPopMatrix();

glPopMatrix();

glutSwapBuffers();

}

int main(int argc, char **argv)

{

glutInit(&argc, argv);

glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

//glutInitWindowSize(600,600);

glutCreateWindow("week13 rect TRT");

glutMouseFunc(mouse);

glutMotionFunc(motion);

glutKeyboardFunc(keyboard);

glutDisplayFunc(display);

glutMainLoop();

return 0;

}

#include <GL/glut.h>