Yiting_week15

 1、

1-1:播放聲音的另一個方式

#include <windows.h>///另一種寫法

int main()

{

    PlaySound("badbadbad.wav",NULL,SND_SYNC);///先放不存在的檔

}///此時compiler成功，但link失敗

所以此時要在setting設定

路徑:setting/compiler/Linker settings/add winmm

即可播放聲音(若檔案放的是不存在的檔，也至少有錯誤的聲音)

執行後，下面bulid log會告知聲音檔放哪可以播放，

再將聲音檔放在資料夾中即可。

1-2:

#include <windows.h>

#include <stdio.h>

int main()

{

    printf("現在在PlaySound()前\n");

    PlaySound("badbadbad.wav",NULL,SND_ASYNC);///播出後不等待

    printf("現在在PlaySound()後\n");

    int N;

    scanf("%d",&N);///等你輸入數字，輸入即結束程式碼

}

1-3:播放MP3

#include "CMP3_MCI.h"

#include <stdio.h>

CMP3_MCI mp3;

int main()

{

    mp3.Load("MJQZZY.mp3");

    mp3.Play();

    printf("現在播放聲音\n");

    int N;///卡住不結束

    scanf("%d",&N);

}

2、動畫

2-1:

#include <GL/glut.h>

#include <stdio.h>///為了能用printf、fprintf、fopen......

float angle[20],oldX=0;

int angleID=0; ///0:第0個關節,1:第1個關節

FILE*fout=NULL,*fin=NULL;

void myWrite(){

    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);

        fout=NULL;

    }///如果fout正在跑其他東西，把其他東西關掉

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

    for(int i=0;i<20;i++){

        fscanf(fin,"%f",&angle[i]);

    }

    glutPostRedisplay();///重畫畫面

}

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

{

    if(key=='r') myRead();///按r讀檔

    if(key=='s') myWrite();///存檔

    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);

    ///myWrite();///不需要一直寫檔，但註解掉後就不會自動存檔

    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");

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutDisplayFunc(display);

    glutMainLoop();

}