123456

課堂作業一
(1)使用貝殼專案
程式碼--
#include <stdio.h>
FILE * fout = NULL,*fin = NULL;
int main(int argc,char**argv)
{
    if(fout==NULL)
        fout = fopen("output.txt","wt");
        fprintf(fout,"Hello World\n");
        return 0;
}


課堂作業二

#include <GL/glut.h>

#include <stdio.h>

FILE * fout = NULL,*fin = NULL;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glutSolidTeapot(0.3);

    glutSwapBuffers();

}

void motion(int x, int y)

{

    if(fout==NULL) fout=fopen("motion.txt","w+");

    fprintf(fout, "%d %d\n",x,y);

    printf("%d %d\n",x,y);

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("3D");

    glutDisplayFunc(display);

    glutMotionFunc(motion);

    glutMainLoop();

}

缺少freeglut.dll檔

放置目錄位置

開啟檔案

課堂作業三

先以滑鼠左鍵紀錄位置

再案r鍵移動(從最後位置到初始位置)

程式碼--
#include <GL/glut.h>
#include <stdio.h>
FILE * fout = NULL,*fin = NULL;
int nowX=0,nowY=0;
void display()
{
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glPushMatrix();
        glTranslatef((nowX-150)/150.0,(nowY-150)/150.0,0);
    glutSolidTeapot(0.3);
    glPopMatrix();
    glutSwapBuffers();
}
void motion(int x, int y)
{
    if(fout==NULL) fout=fopen("motion.txt","w+");
    fprintf(fout, "%d %d\n",x,y);
    printf("%d %d\n",x,y);
}
void keyboard(unsigned char key, int x, int y)
{
    if(key=='r')
    {
        if(fin==NULL) fin=fopen("motion.txt","r");
        fscanf(fin ,"%d %d\n", &nowX,&nowY);
        printf("%d %d\n",nowX, nowY);
    }
    glutPostRedisplay();
}
int main(int argc,char**argv)
{
    glutInit(&argc,argv);
    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
    glutCreateWindow("3D");
    glutDisplayFunc(display);
    glutMotionFunc(motion);
    glutKeyboardFunc(keyboard);
    glutMainLoop();
}