Week 14 林品至

作業一

程式碼

#include <stdio.h>
FILE *fout=NULL,*fin=NULL;
int main(int argc,char**argv)
{
    if(fout==NULL)
        fout=fopen("output.txt","w+");
    fprintf(fout,"Hello World\n");
    return 0;
}

作業二

茶壺讀取

(1).加入檔案

作業三

按R可以移動水壺

#include<GL/glut.h>

#include<stdio.h>

FILE *fout=NULL,*fin=NULL;

int nowX=0, nowY=0;//, oldX=0, oldY=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", &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();

}