筆記week05

week05

keyboard

1、moodle下載freeglut

2、CodeBlocks開新的GLUT專案

3、打程式碼

#include <GL/glut.h>
#include <stdio.h>
void display()
{
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glColor3f(1,1,0);
    glutSolidTeapot(0.3);
    glutSwapBuffers();
}
void keyboard(unsigned char key,int x,int y)
{
    printf("你按下了 %c 在 %d %d 座標\n",key,x,y);
}
int main(int argc, char**argv)
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
    glutCreateWindow("week05 keyboard");
    glutDisplayFunc(display);
    glutKeyboardFunc(keyboard);
    glutMainLoop();
}

#include <GL/glut.h>
#include <stdio.h>
float x=150,y=150,z=0,scale=1.0;
int oldX=0,oldY=0;
void display()
{
    glClearColor(0.5,0.5,0.5,1);
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glPushMatrix();
        glTranslatef((x-150)/150.0,-(y-150)/150.0,z);
        glScalef(scale,scale,scale);
        glColor3f(1,1,0);
        glutSolidTeapot(0.3);
    glPopMatrix();
    glutSwapBuffers();
}
void keyboard(unsigned char key,int mouseX,int mouseY)
{
}
void mouse(int button,int state,int mouseX,int mouseY)
{
    oldX=mouseX;oldY=mouseY;
}
void motion(int mouseX,int mouseY)
{
    if(mouseX-oldX>0)scale*=1.01;
    if(mouseX-oldX<0)scale*=0.99;
    oldX=mouseX; oldY=mouseY;
    display();
}
int main(int argc, char**argv)
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
    glutCreateWindow("week05 keyboard");
    glutDisplayFunc(display);
    glutKeyboardFunc(keyboard);
    glutMouseFunc(mouse);
    glutMotionFunc(motion);
    glutMainLoop();
}