week14

1-1

#include <stdio.h>

int main()

{

    FILE* fout =fopen("file.txt","w+");

    printf("hello world\n");

    fprintf(fout,"hello world\n");

     fclose(fout);

}

1-2

#include <stdio.h>

int main()

{

    FILE* fout =fopen("file2.txt","w+");

    fprintf(fout,"angle1 %d\n",999);

    fclose(fout);

    char line[200];

    int a;

    FILE *fin =fopen("file2.txt","r");

    fscanf(fin,"%s %d",line,a);

    printf("讀到了字串:%s 及整數%d\n",line,&a);

    fclose(fin);

}

#include <GL/glut.h>

#include <stdio.h>

float angle[20],oldX=0;

int angleID=0;

FILE*fout =NULL,*fin=NULL;

void myWrite(){

    if(fin!=NULL){

        fclose(fin);

        fin=NULL;

    }

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

    for(int i=0;i<20;i++){

        printf("%.2f ",angle[i]);

        fprintf(fout,"%.2f ",angle[i]);

    }

    printf("\n");

    fprintf(fout,"\n");

}

void myRead(){

    if(fout!=NULL) fclose(fout);

    if(fin==NULL)fin=fopen("file.txt","r");

    for(int i=0;i<20;i++){

        fscanf(fin,"%f",&angle[i]);

    }

    glutPostRedisplay();

}

void keyboard(unsigned char key, int x, int y){

    if(key=='r'){

        myRead();

    }

    if(key=='1')angleID=0;

    if(key=='2')angleID=1;

    if(key=='3')angleID=2;

    if(key=='4')angleID=3;

}

void mouse(int button, int state,int x,int y){

    oldX=x;

}

void motion(int x,int y){

    angle[angleID]+=(x-oldX);

    myWrite();

    oldX=x;

    glutPostRedisplay();

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,1);

    glRectf(0.3,0.5,-0.3,-0.2);

    glPushMatrix();

        glTranslatef(0.3,0.5,0);

        glRotatef(angle[0],0,0,1);

        glTranslatef(-0.3,-0.4,0);

        glColor3f(1,0,0);

        glRectf(0.3,0.5,0.8,0.3);

        glPushMatrix();

            glTranslatef(0.8,0.4,0);

            glRotatef(angle[1],0,0,1);

            glTranslatef(-0.8,-0.4,0);

            glColor3f(0,1,0);

            glRectf(0.8,0.5,1.1,0.3);

        glPopMatrix();

    glPopMatrix();

    glPushMatrix();

    glTranslatef(-0.3,0.5,0);

    glRotatef(angle[2],0,0,1);

    glTranslatef(0.3,-0.4,0);

    glColor3f(1,0,0);

    glRectf(-0.3,0.5,-0.8,0.3);

        glPushMatrix();

            glTranslatef(-0.8,0.4,0);

            glRotatef(angle[3],0,0,1);

            glTranslatef(0.8,-0.4,0);

            glColor3f(0,1,0);

            glRectf(-0.8,0.5,-1.1,0.3);

        glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int main(int argc,char ** argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week14 TRT write");

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutDisplayFunc(display);

    glutKeyboardFunc(keyboard);

    glutMainLoop();

}

3-1

#include <GL/glut.h>

#include <stdio.h>

void timer(int t){

    printf("鬧鐘%d,我起床了\n",t);

    printf("設定下一個鬧鐘\n");

    glutTimerFunc(2000,timer,t+1);

}

void display()

{

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week14 timer");

    glutTimerFunc(3000,timer,0);

    glutDisplayFunc(display);

    glutMainLoop();

}

3-2會叫的計時器

#include <GL/glut.h>

#include <mmsystem.h>

#include <stdio.h>

void timer(int t){

    printf("鬧鐘%d,我起床了\n",t);

    PlaySound("do.wav",NULL,SND_ASYNC);

    printf("設定下一個鬧鐘\n");

    glutTimerFunc(2000,timer,t+1);

}

void display()

{

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week14 timer");

    glutTimerFunc(3000,timer,0);

    glutDisplayFunc(display);

    glutMainLoop();

}