week03 記筆的我

複習GLUT

茶壺

滑鼠

#include <GL/glut.h>
void display()
{
    glClearColor(1,1,0, 1);///背景
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glColor3f(0.8,0.5,0.2);
    glutSolidTeapot(0.3);

    glutSwapBuffers();
}
#include <stdio.h>
void mouse(int button, int state, int x, int y)
{
   printf("%d %d %d %d\n", button, state, x, y);
}
int main(int argc, char**argv)///進階的main()參數
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
    glutCreateWindow("Week03 Mouse操作");///盡量不要用中文

    glutDisplayFunc(display);
    glutMouseFunc(mouse);
    glutMainLoop();///主要迴圈
}

#include <GL/glut.h>
float teapotX=0, teapotY=0;
void display()
{
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glPushMatrix();
        glTranslatef(teapotX, teapotY, 0);
        glutSolidTeapot(0.3);
    glPopMatrix();
    glutSwapBuffers();
}
#include <stdio.h>
void mouse(int button, int state, int x, int y)
{
   if(state==GLUT_DOWN) printf("glVertex2f(%f, %f);\n", (x-150)/150.0, -(y-150)/150.0);//把mouse設成teapot的位置
}
void motion(int x, int y)
{
    teapotX=(x-150)/150.0; teapotY=-(y-150)/150.0;
    printf("%d %d\n", x, y);//印出移動的數字
    glutPostRedisplay();
}
int main(int argc, char**argv)
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
    glutCreateWindow("Week03 Mouse操作");

    glutDisplayFunc(display);
    glutMouseFunc(mouse);
    glutMotionFunc(motion);//移動
    glutMainLoop();
}