上課筆記week14-09160970蘇賀生

 step01-1 開檔-寫檔-關檔

step01-2 開啓舊檔-讀檔

step01-3 使用week13的程式碼來製作動畫

#include <GL/glut.h>

#include <stdio.h>

float angle[20],oldX=0;

int angleID=0;

FILE * fout = NULL;

void myWrite()

{

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

    for(int i=0;i<20;i++){

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

    }

}

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

{

    if(key=='0') angleID=0;

    if(key=='1') angleID=1;

    if(key=='2') angleID=2;

    if(key=='3') angleID=3;

}

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

{

    oldX= x;

}

void motion (int x, int y )

{

    angle[angleID] += (x-oldX);

    oldX = x;

    myWrite();

    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);

    ///glutInitWindowSize(600,600);

    glutCreateWindow("week14 rect TRT");

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutDisplayFunc (display);

    glutMainLoop();

}

step01-04 讀位置

然後改程式碼讓他變工整一點

#include <GL/glut.h>

#include <stdio.h>

float angle[20],oldX=0;

int angleID=0;

FILE * fout=NULL , *fin = NULL;

void myWrite()

{

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

    for(int i=0;i<20;i++){

        printf("%2.f",angle[i]);

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

    }

    printf("\n");

    fprintf(fout,"\n");

}

void myRead(){

    if(fout!= NULL) { fclose(fout) ; fout==NULL ; }

    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=='0') angleID=0;

    if(key=='1') angleID=1;

    if(key=='2') angleID=2;

    if(key=='3') angleID=3;

}

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

{

    oldX= x;

}

void motion (int x, int y )

{

    angle[angleID] += (x-oldX);

    oldX = x;

    myWrite();

    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);

    ///glutInitWindowSize(600,600);

    glutCreateWindow("week14 rect TRT");

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutDisplayFunc (display);

    glutMainLoop();

}

step02-01

把專題的目錄改變 先用notepad++改目錄位置

改成"." 然後把freeglut/bin 裏面的freeglut.dll 複製到 剛剛改目錄的專案裏面

接下來是做一個鬧鐘

#include <GL/glut.h>

#include <mmsystem.h>

#include <stdio.h>

void timer(int t)

{

    printf("и癬\n");

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

    printf("砞﹚緓牧\n");

    glutTimerFunc(1000,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();

}