week05_簡上棋

先寫出一個會自動旋轉3D的甜甜圈

#include<GL/freeglut.h>

void display()
{
    glClear(GL_COLOR_BUFFER_BIT);
    glRotatef(0.05,0.3,0.4,0);
    glutWireTorus(0.3,0.5,30,30);
    glFlush();
}

int main(int argc,char** argv)
{
    glutInit(&argc,argv);
    glutCreateWindow("02160393_DownChess");
    glutDisplayFunc(display);
    glutIdleFunc(display);
    glutMainLoop();
}

建兩個旋轉的黑白方形 

void display()

{

    glClear(GL_COLOR_BUFFER_BIT);

    glRotatef(0.05,0.1,0.3,0);

    //glutWireTorus(0.3,0.5,30,30);

    glBegin(GL_LINE_LOOP);

    glVertex3f(0.3,0.3,0.5);

    glVertex3f(-0.3,0.3,0.5);

    glVertex3f(-0.3,-0.3,0.5);

    glVertex3f(0.3,-0.3,0.5);

    glEnd();

    glBegin(GL_POLYGON);

    glVertex3f(0.3,0.3,-0.5);

    glVertex3f(-0.3,0.3,-0.5);

    glVertex3f(-0.3,-0.3,-0.5);

    glVertex3f(0.3,-0.3,-0.5);

    glEnd();

    glFlush();

}

建立立體方形

void display()

{

    glClear(GL_COLOR_BUFFER_BIT);

    glRotatef(0.05,0.1,0.3,0);

    //glutWireTorus(0.3,0.5,30,30);

    glColor3f(1,1,1);

    glBegin(GL_POLYGON);

    glVertex3f(0.3,0.3,0.5);

    glVertex3f(-0.3,0.3,0.5);

    glVertex3f(-0.3,-0.3,0.5);

    glVertex3f(0.3,-0.3,0.5);

    glEnd();

    glBegin(GL_POLYGON);

    glVertex3f(0.3,0.3,-0.5);

    glVertex3f(-0.3,0.3,-0.5);

    glVertex3f(-0.3,-0.3,-0.5);

    glVertex3f(0.3,-0.3,-0.5);

    glEnd();

    glBegin(GL_QUAD_STRIP);

    glVertex3f(0.3,0.3,0.5);

    glVertex3f(0.3,0.3,-0.5);

    glVertex3f(-0.3,0.3,0.5);

    glVertex3f(-0.3,0.3,-0.5);

    glVertex3f(-0.3,-0.3,0.5);

    glVertex3f(-0.3,-0.3,-0.5);

    glVertex3f(0.3,-0.3,0.5);

    glVertex3f(0.3,-0.3,-0.5);

    glEnd();

    glFlush();

}

加上邊線

    glColor3f(0,0,0);

    glBegin(GL_LINE_LOOP);

    glVertex3f(0.3,0.3,0.5);

    glVertex3f(-0.3,0.3,0.5);

    glVertex3f(-0.3,-0.3,0.5);

    glVertex3f(0.3,-0.3,0.5);

    glEnd();

    glBegin(GL_LINE_LOOP);

    glVertex3f(0.3,0.3,-0.5);

    glVertex3f(-0.3,0.3,-0.5);

    glVertex3f(-0.3,-0.3,-0.5);

    glVertex3f(0.3,-0.3,-0.5);

    glEnd();

    glBegin(GL_LINES);

    glVertex3f(0.3,0.3,0.5);

    glVertex3f(0.3,0.3,-0.5);

    glVertex3f(-0.3,0.3,0.5);

    glVertex3f(-0.3,0.3,-0.5);

    glVertex3f(-0.3,-0.3,0.5);

    glVertex3f(-0.3,-0.3,-0.5);

    glVertex3f(0.3,-0.3,0.5);

    glVertex3f(0.3,-0.3,-0.5);

    glEnd();

用滑鼠控制旋轉

#include<GL/freeglut.h>

#include<stdio.h>

float a=0,b=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT);

    glPushMatrix();

    glRotatef(b,-1,0,0);

    glRotatef(a,0,1,0);

    //glutWireTorus(0.3,0.5,30,30);

    glColor3f(1,1,1);

    glBegin(GL_POLYGON);

    glVertex3f(0.3,0.3,0.5);

    glVertex3f(-0.3,0.3,0.5);

    glVertex3f(-0.3,-0.3,0.5);

    glVertex3f(0.3,-0.3,0.5);

    glEnd();

    glBegin(GL_POLYGON);

    glVertex3f(0.3,0.3,-0.5);

    glVertex3f(-0.3,0.3,-0.5);

    glVertex3f(-0.3,-0.3,-0.5);

    glVertex3f(0.3,-0.3,-0.5);

    glEnd();

    glBegin(GL_QUAD_STRIP);

    glVertex3f(0.3,0.3,0.5);

    glVertex3f(0.3,0.3,-0.5);

    glVertex3f(-0.3,0.3,0.5);

    glVertex3f(-0.3,0.3,-0.5);

    glVertex3f(-0.3,-0.3,0.5);

    glVertex3f(-0.3,-0.3,-0.5);

    glVertex3f(0.3,-0.3,0.5);

    glVertex3f(0.3,-0.3,-0.5);

    glEnd();

    glColor3f(0,0,0);

    glBegin(GL_LINE_LOOP);

    glVertex3f(0.3,0.3,0.5);

    glVertex3f(-0.3,0.3,0.5);

    glVertex3f(-0.3,-0.3,0.5);

    glVertex3f(0.3,-0.3,0.5);

    glEnd();

    glBegin(GL_LINE_LOOP);

    glVertex3f(0.3,0.3,-0.5);

    glVertex3f(-0.3,0.3,-0.5);

    glVertex3f(-0.3,-0.3,-0.5);

    glVertex3f(0.3,-0.3,-0.5);

    glEnd();

    glBegin(GL_LINES);

    glVertex3f(0.3,0.3,0.5);

    glVertex3f(0.3,0.3,-0.5);

    glVertex3f(-0.3,0.3,0.5);

    glVertex3f(-0.3,0.3,-0.5);

    glVertex3f(-0.3,-0.3,0.5);

    glVertex3f(-0.3,-0.3,-0.5);

    glVertex3f(0.3,-0.3,0.5);

    glVertex3f(0.3,-0.3,-0.5);

    glEnd();

    glPopMatrix();

    glFlush();

}

void motion(int x,int y)

{

    printf("%d %d\n",x,y);

    a=x;

    b=y;

}

int main(int argc,char** argv)

{

    glutInit(&argc,argv);

    glutCreateWindow("02160393_DownChess");

    glutDisplayFunc(display);

    glutIdleFunc(display);

    glutMotionFunc(motion);

    glutMainLoop();

}