電腦圖學Week12

電腦圖學2019-05-09

Week12

(1)主題 : 鍵盤

(2)主題 : 聲音.音樂WAV,MP3

(3)複習 : 階層T-R-T骨架

(4)作業 : 能操控的機器人

1.下載一個聲音檔案

2.打開CodeBlocks→File→New→Project→Console application→打標題。

3.打程式碼。

#include <windows.h>
#include <mmsystem.h>
#include <stdio.h>
int main()
{
    printf("在之前\n");
    PlaySoundA("C:\\Users\\user\\Downloads\\glass3.wav",NULL,SND_SYNC);
    printf("在中間\n");
    PlaySoundA("C:\\Users\\user\\Downloads\\glass3.wav",NULL,SND_SYNC);
    printf("在最後\n");
}



4.滑鼠右鍵點擊標題選擇 Build options → Linker settings → add 輸入winmm 確定之後就可以執行了。





5.執行結果會聽見剛剛下載的聲音。



用鍵盤來控制播放聲音

1.到https://www.transmissionzero.co.uk/software/freeglut-devel/裡面，點擊 Download freeglut 3.0.0 for MinGW 。

2.解壓縮之後，打開 freeglut 資料夾裡的 lib 資料夾，將裡面的 libfreeglut.a 複製，直接貼上，重新命名為 : libglut32.a ，結果如下圖。

3.打開CodeBlocks新增Project : GLUT 打程式碼。

#ifdef __APPLE__
#include <GLUT/glut.h>
#else
#include <GL/glut.h>
#endif

#include <stdlib.h>

static int slices = 16;
static int stacks = 16;

/* GLUT callback Handlers */

static void resize(int width, int height)
{
    const float ar = (float) width / (float) height;

    glViewport(0, 0, width, height);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    glFrustum(-ar, ar, -1.0, 1.0, 2.0, 100.0);

    glMatrixMode(GL_MODELVIEW);
    glLoadIdentity() ;
}

static void display(void)
{
    const double t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
    const double a = t*90.0;

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glColor3d(1,0,0);

    glPushMatrix();
        glTranslated(-2.4,1.2,-6);
        glRotated(60,1,0,0);
        glRotated(a,0,0,1);
        glutSolidSphere(1,slices,stacks);
    glPopMatrix();

    glPushMatrix();
        glTranslated(0,1.2,-6);
        glRotated(60,1,0,0);
        glRotated(a,0,0,1);
        glutSolidCone(1,1,slices,stacks);
    glPopMatrix();

    glPushMatrix();
        glTranslated(2.4,1.2,-6);
        glRotated(60,1,0,0);
        glRotated(a,0,0,1);
        glutSolidTorus(0.2,0.8,slices,stacks);
    glPopMatrix();

    glPushMatrix();
        glTranslated(-2.4,-1.2,-6);
        glRotated(60,1,0,0);
        glRotated(a,0,0,1);
        glutWireSphere(1,slices,stacks);
    glPopMatrix();

    glPushMatrix();
        glTranslated(0,-1.2,-6);
        glRotated(60,1,0,0);
        glRotated(a,0,0,1);
        glutWireCone(1,1,slices,stacks);
    glPopMatrix();

    glPushMatrix();
        glTranslated(2.4,-1.2,-6);
        glRotated(60,1,0,0);
        glRotated(a,0,0,1);
        glutWireTorus(0.2,0.8,slices,stacks);
    glPopMatrix();

    glutSwapBuffers();
}

#include <mmsystem.h>
static void key(unsigned char key, int x, int y)
{
    if(key=='1') PlaySoundA("C:\\Users\\user\\Downloads\\do.wav",NULL,SND_ASYNC);
    if(key=='2') PlaySoundA("C:\\Users\\user\\Downloads\\re.wav",NULL,SND_ASYNC);
    if(key=='3') PlaySoundA("C:\\Users\\user\\Downloads\\mi.wav",NULL,SND_ASYNC);
    if(key=='4') PlaySoundA("C:\\Users\\user\\Downloads\\fa.wav",NULL,SND_ASYNC);
    if(key=='5') PlaySoundA("C:\\Users\\user\\Downloads\\so.wav",NULL,SND_ASYNC);
    switch (key)
    {
        case 27 :
        case 'q':
            exit(0);
            break;

        case '+':
            slices++;
            stacks++;
            break;

        case '-':
            if (slices>3 && stacks>3)
            {
                slices--;
                stacks--;
            }
            break;
    }

    glutPostRedisplay();
}

static void idle(void)
{
    glutPostRedisplay();
}

const GLfloat light_ambient[]  = { 0.0f, 0.0f, 0.0f, 1.0f };
const GLfloat light_diffuse[]  = { 1.0f, 1.0f, 1.0f, 1.0f };
const GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };
const GLfloat light_position[] = { 2.0f, 5.0f, 5.0f, 0.0f };

const GLfloat mat_ambient[]    = { 0.7f, 0.7f, 0.7f, 1.0f };
const GLfloat mat_diffuse[]    = { 0.8f, 0.8f, 0.8f, 1.0f };
const GLfloat mat_specular[]   = { 1.0f, 1.0f, 1.0f, 1.0f };
const GLfloat high_shininess[] = { 100.0f };

/* Program entry point */
#include <mmsystem.h>
int main(int argc, char *argv[])
{
    PlaySoundA("C:\\Users\\user\\Downloads\\glass3.wav",NULL,SND_ASYNC);
    glutInit(&argc, argv);
    glutInitWindowSize(640,480);
    glutInitWindowPosition(10,10);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("GLUT Shapes");

    glutReshapeFunc(resize);
    glutDisplayFunc(display);
    glutKeyboardFunc(key);
    glutIdleFunc(idle);

    glClearColor(1,1,1,1);
    glEnable(GL_CULL_FACE);
    glCullFace(GL_BACK);

    glEnable(GL_DEPTH_TEST);
    glDepthFunc(GL_LESS);

    glEnable(GL_LIGHT0);
    glEnable(GL_NORMALIZE);
    glEnable(GL_COLOR_MATERIAL);
    glEnable(GL_LIGHTING);

    glLightfv(GL_LIGHT0, GL_AMBIENT,  light_ambient);
    glLightfv(GL_LIGHT0, GL_DIFFUSE,  light_diffuse);
    glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);
    glLightfv(GL_LIGHT0, GL_POSITION, light_position);

    glMaterialfv(GL_FRONT, GL_AMBIENT,   mat_ambient);
    glMaterialfv(GL_FRONT, GL_DIFFUSE,   mat_diffuse);
    glMaterialfv(GL_FRONT, GL_SPECULAR,  mat_specular);
    glMaterialfv(GL_FRONT, GL_SHININESS, high_shininess);

    glutMainLoop();

    return EXIT_SUCCESS;
}

4.執行之後跑出範例圖片就能利用鍵盤的1.2.3.4.5分別出現Do Re Mi Fa So的聲音。