Week10

--------------------------------------------用鍵盤移動茶壺--------------------------------------------

#include <GL/glut.h>

float teapotX=0, teapotY=0;

//NEW

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

{ 

     if(key=='a') teapotX+=0.1;

     if(key=='b') teapotX-=0.1;

     if(key=='c') teapotY+=0.1;

     if(key=='d') teapotY-=0.1;

     glutPostRedisplay(); //要重畫畫面才會更新

}

//NEW

void display()

{

     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

     glPushMatrix();

      glTranslatef(teapotX, teapotY, 0);

      glutSolidTeapot(0.3);

    glPopMatrix();

    glutSwapBuffers();

}

int main()

{

glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

glutCreateWindow("week10");

glutDisplayFunc(display);

glutKeyboardFunc(keyboard); //NEW

glutMainLoop();

}

-------------------------------------------------------------------------------------------------------

#include <GL/glut.h>

#include <stdio.h>

float teapotX=0, teapotY=0;

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

{

     printf("%c %d %d\n", key, x, y);

     if(key=='a' || key=='A') teapotX+=0.1;

     if(key=='b' || key=='B') teapotX-=0.1;

     if(key=='c' || key=='C') teapotY+=0.1;

     if(key=='d' || key=='D') teapotY-=0.1;

     glutPostRedisplay();

}

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

{

printf("%d %d %d %d\n", button, state, x, y);

}

void motion(int x, int y)

{

printf("%d %d/n", x, y);

}

void display()

{

     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

     glPushMatrix();

      glTranslatef(teapotX, teapotY, 0);

      glutSolidTeapot(0.3);

    glPopMatrix();

    glutSwapBuffers();

}

int main()

{

glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

glutCreateWindow("week10");

glutDisplayFunc(display);

glutKeyboardFunc(keyboard);

glutMouseFunc(mouse);

glutMotionFunc(motion);

glutMainLoop();

}

--------------------------------------------用滑鼠轉動+打光--------------------------------------------

#include <GL/glut.h>

#include <stdio.h>

float teapotX=0, teapotY=0;

float angleX=0, startX=0;

float angleY=0, startY=0;

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

{

printf("%d %d %d %d\n", button, state, x, y);

startX=x;

startY=y;

}

void motion(int x, int y)

{

printf("%d %d\n", x, y);

angleX+= (x-startX); startX = x;

angleY+= (y-startY); startY = y;

glutPostRedisplay();

}

void display()

{

glEnable(GL_DEPTH_TEST);

     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

     glPushMatrix();

      glTranslatef(teapotX, teapotY, 0);

      glRotatef(angleX, 0,-1,0);

      glRotatef(angleY, -1,0,0);

glutSolidTeapot(0.3);

    glPopMatrix();

    glutSwapBuffers();

}

void myLight() //打光

{

const GLfloat light_position[] = { 2.0f, 5.0f, -5.0f, 0.0f};

glEnable(GL_LIGHT0);

glEnable(GL_NORMALIZE);

glEnable(GL_COLOR_MATERIAL);

glEnable(GL_LIGHTING);

glLightfv(GL_LIGHT0, GL_POSITION, light_position);

}

int main()

{

glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

glutCreateWindow("week10");

glutDisplayFunc(display);

glutMouseFunc(mouse);

glutMotionFunc(motion);

myLight();

glutMainLoop();

}