Different Dimension Demon的契約書 week17

Different Dimension Demon的契約書 week16

 step01

1.alpha內插公式:alpha:0.0~1.0

angle=alpha*新+(1-alpha)*舊

ex:

alpha:0    舊

alpha:0.5 半新半舊

alpha:1    新

2.用week15_angles_TRT_again改

file-new-project   week16_interpolation

```c++

#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("%.1f ",angle[i]);///小黑印出來

        fprintf(fout,"%.1f ",angle[i]);

    }

    printf("\n");

    fprintf(fout,"\n");

}

float NewAngle[20],OldAngle[20];

void myRead()

{

    if(fout!=NULL)

    {

        fclose(fout); fout=NULL;

    }

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

    for(int i=0;i<20;i++)

    {

        OldAngle[i]=NewAngle[i];

        fscanf(fin,"%f",&NewAngle[i]);

    }

    glutPostRedisplay();///重畫畫面

}

void myInterpolate(float alpha)

{

    for(int i=0;i<20;i++)

    {

        angle[i]=alpha*NewAngle[i]+(1-alpha)*OldAngle[i];

    }

}

int t=0;

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

{

    if(key=='p')///play

    {

        if(t%30==0) myRead();

        myInterpolate((t%30)/30.0);

        glutPostRedisplay();

        t++;

    }

    if(key=='s') myWrite();///調好動作,才save存檔

    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);

    //myWrite();

    oldX=x;

    glutPostRedisplay();///請glut重畫畫面

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,1);///白色

    glRectf(0.3,0.5,-0.3,-0.5);///四邊形

    glPushMatrix();///右半部

    glTranslatef(0.3,0.4,0);///把手臂掛回身體

    glRotatef(angle[0],0,0,1);///旋轉，對z軸轉

    glTranslatef(-0.3,-0.4,0);///把手臂旋轉中心放在正中心

        glColor3f(1,0,0);///紅色

        glRectf(0.3,0.5,0.7,0.3);///上手臂

        glPushMatrix();

            glTranslatef(0.7,0.4,0);///把手臂掛回身體

            glRotatef(angle[1],0,0,1);///旋轉，對z軸轉

            glTranslatef(-0.7,-0.4,0);///把手臂旋轉中心放在正中心

            glColor3f(0,1,0);///綠色

            glRectf(0.7,0.5,1.0,0.3);///下手肘

        glPopMatrix();

    glPopMatrix();

    glPushMatrix();///左半部

    glTranslatef(-0.3,0.4,0);///把手臂掛回身體

    glRotatef(angle[2],0,0,1);///旋轉，對z軸轉

    glTranslatef(0.3,-0.4,0);///把手臂旋轉中心放在正中心

        glColor3f(1,0,0);///紅色

        glRectf(-0.3,0.5,-0.7,0.3);///上手臂

        glPushMatrix();

            glTranslatef(-0.7,0.4,0);///把手臂掛回身體

            glRotatef(angle[3],0,0,1);///旋轉，對z軸轉

            glTranslatef(0.7,-0.4,0);///把手臂旋轉中心放在正中心

            glColor3f(0,1,0);///綠色

            glRectf(-0.7,0.5,-1.0,0.3);///下手肘

        glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutInitWindowSize(600,600);

    glutCreateWindow("week15 angle TRT again");

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutDisplayFunc(display);

    glutMainLoop();

}

```

step02

按一下p鍵重複動作

```c++

#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("%.1f ",angle[i]);///小黑印出來

        fprintf(fout,"%.1f ",angle[i]);

    }

    printf("\n");

    fprintf(fout,"\n");

}

float NewAngle[20],OldAngle[20];

void myRead()

{

    if(fout!=NULL)

    {

        fclose(fout); fout=NULL;

    }

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

    for(int i=0;i<20;i++)

    {

        OldAngle[i]=NewAngle[i];

        fscanf(fin,"%f",&NewAngle[i]);

    }

    glutPostRedisplay();///重畫畫面

}

void myInterpolate(float alpha)

{

    for(int i=0;i<20;i++)

    {

        angle[i]=alpha*NewAngle[i]+(1-alpha)*OldAngle[i];

    }

}

void timer(int t)

{

    if(t%50==0) myRead();

    myInterpolate((t%50)/50.0);

    glutPostRedisplay();

    glutTimerFunc(20,timer,t+1);

}

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

{

    if(key=='p')///play

    {

        myRead();

        glutTimerFunc(0,timer,0);

    }

    if(key=='s') myWrite();///調好動作,才save存檔

    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);

    //myWrite();

    oldX=x;

    glutPostRedisplay();///請glut重畫畫面

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,1);///白色

    glRectf(0.3,0.5,-0.3,-0.5);///四邊形

    glPushMatrix();///右半部

    glTranslatef(0.3,0.4,0);///把手臂掛回身體

    glRotatef(angle[0],0,0,1);///旋轉，對z軸轉

    glTranslatef(-0.3,-0.4,0);///把手臂旋轉中心放在正中心

        glColor3f(1,0,0);///紅色

        glRectf(0.3,0.5,0.7,0.3);///上手臂

        glPushMatrix();

            glTranslatef(0.7,0.4,0);///把手臂掛回身體

            glRotatef(angle[1],0,0,1);///旋轉，對z軸轉

            glTranslatef(-0.7,-0.4,0);///把手臂旋轉中心放在正中心

            glColor3f(0,1,0);///綠色

            glRectf(0.7,0.5,1.0,0.3);///下手肘

        glPopMatrix();

    glPopMatrix();

    glPushMatrix();///左半部

    glTranslatef(-0.3,0.4,0);///把手臂掛回身體

    glRotatef(angle[2],0,0,1);///旋轉，對z軸轉

    glTranslatef(0.3,-0.4,0);///把手臂旋轉中心放在正中心

        glColor3f(1,0,0);///紅色

        glRectf(-0.3,0.5,-0.7,0.3);///上手臂

        glPushMatrix();

            glTranslatef(-0.7,0.4,0);///把手臂掛回身體

            glRotatef(angle[3],0,0,1);///旋轉，對z軸轉

            glTranslatef(0.7,-0.4,0);///把手臂旋轉中心放在正中心

            glColor3f(0,1,0);///綠色

            glRectf(-0.7,0.5,-1.0,0.3);///下手肘

        glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutInitWindowSize(600,600);

    glutCreateWindow("week15 angle TRT again");

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutDisplayFunc(display);

    glutMainLoop();

}

```

glutLookat(x,y,z,    eye       眼睛的位置

                   x,y,z    center    要拍的中心的座標

                   x,y,z ) up

step03

week16_camera_projecttion_gluLookAt

aspect ratio 長寬比 ex:1920x1080 ,1280x720 ,640x480 ,16:9 ,4:3

```c++

#include <GL/glut.h>

void reshape(int w,int h)

{

    float ar=(float)w/(float)h;

    glViewport(0,0,w,h);

    glMatrixMode(GL_PROJECTION);///3D變2D

    glLoadIdentity();

    gluPerspective(60,ar,0.1,100);

    glMatrixMode(GL_MODELVIEW);

    glLoadIdentity();

    gluLookAt(0,0,3, ///eye

              0,0,0, ///center

              0,1,0);///up向量

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glutSolidTeapot(1);

    glutSwapBuffers();

}

int main(int argc,char** argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week16 camera");

    glutDisplayFunc(display);

    glutReshapeFunc(reshape);

    glutMainLoop();

}

```

按滑鼠可拖曳茶壺模型角度

```c++

#include <GL/glut.h>

void reshape(int w,int h)

{

    float ar=(float)w/(float)h;

    glViewport(0,0,w,h);

    glMatrixMode(GL_PROJECTION);///3D變2D

    glLoadIdentity();

    gluPerspective(60,ar,0.1,100);

    glMatrixMode(GL_MODELVIEW);

    glLoadIdentity();

    gluLookAt(0,0,3, ///eye

              0,0,0, ///center

              0,1,0);///up向量

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glutSolidTeapot(1);

    glutSwapBuffers();

}

void motion(int x,int y)

{

    glMatrixMode(GL_MODELVIEW);

    glLoadIdentity();

    gluLookAt((x-150)/150.0,(y-150)/150.0,3,

              0,0,0,

              0,1,0);

    glutPostRedisplay();///重畫畫面

}

int main(int argc,char** argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week16 camera");

    glutMotionFunc(motion);

    glutDisplayFunc(display);

    glutReshapeFunc(reshape);

    glutMainLoop();

}

```

Different Dimension Demon的契約書 week15

 step01

file-new-empty week15-1_PlaySound.cpp

#include<mmysystem.h>

#include<windows.h>

setting-compiler setting linker 加入winmm

```c

#include <windows.h>

#include <stdio.h>

int main()

{

    printf("PlaySound()之前\n");

    PlaySound("07042111.wav",NULL,SND_SYNC);

    printf("PlaySound()之後\n");

}

```

播do re mi

```c

#include <windows.h>

#include <stdio.h>

int main()

{

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

    PlaySound("re.wav",NULL,SND_SYNC);

    PlaySound("mi.wav",NULL,SND_SYNC);

}

```

step02

1.ASYNC

```c

#include <windows.h>

#include <stdio.h>

int main()

{

    PlaySound("07042111.wav",NULL,SND_ASYNC);///ASYNC不等待

    while(1)

    {

        printf("請輸入數字: ");

        int N;

        scanf("%d",&N);

        if(N==1) PlaySound("do.wav",NULL,SND_ASYNC);

        if(N==2) PlaySound("re.wav",NULL,SND_ASYNC);

        if(N==3) PlaySound("mi.wav",NULL,SND_ASYNC);

    }

}

```

PlaySound()只能用wav檔

moodle下載CMP3_MCI.h放同目錄

#include "CMP3_MCI.h"

宣告CMP3_MCI.h

mp3load("檔名.mp3")

```c

#include <stdio.h>

#include "CMP3_MCI.h"

CMP3_MCI mp3;///宣告

int main()

{

    mp3.Load("07042111.mp3");

    mp3.Play();

    printf("隨便等你輸入數字,程式卡住了囉: ");

    int N;

    scanf("%d",&N);

}

```

拿上週的week14_angles_fprintf_fscanf

file-new-project,glut專案 week15_angles_TRT_again

step03

file-new-project,glut專案 week15_hw_gundam_parts.cbp

Different Dimension Demon的契約書 week14

 step01

file-new-empty week14-1.cpp

1.寫檔(write)

```c

#include <stdio.h>

int main()

{

    FILE*fout=fopen("file.txt","w+");///指標fout開啟檔案

    printf("Hello World\n");

    fprintf(fout,"Hello World\n");

    fclose(fout);///關閉檔案

}

```

file-new-empty week14-2.cpp

2.讀檔(read)

```c

#include <stdio.h>

int main()

{

    FILE*fout=fopen("file.txt","w+");///指標fout開啟檔案

    fprintf(fout,"3.1415926\n");

    fclose(fout);///關閉檔案

    float angle=0;

    FILE*fin=fopen("file.txt","r");

    fscanf(fin,"%f",&angle);

    printf("讀到了角度:%f",angle);

    fclose(fin);

}

```

用week13_rect_many_TRT改

3.

```c++

#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++)

    {

        printf("%.1f",angle[i]);///小黑印出來

        fprintf(fout,"%.1f",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);

    myWrite();

    oldX=x;

    glutPostRedisplay();///請glut重畫畫面

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,1);///白色

    glRectf(0.3,0.5,-0.3,-0.5);///四邊形

    glPushMatrix();///右半部

    glTranslatef(0.3,0.4,0);///把手臂掛回身體

    glRotatef(angle[0],0,0,1);///旋轉，對z軸轉

    glTranslatef(-0.3,-0.4,0);///把手臂旋轉中心放在正中心

        glColor3f(1,0,0);///紅色

        glRectf(0.3,0.5,0.7,0.3);///上手臂

        glPushMatrix();

            glTranslatef(0.7,0.4,0);///把手臂掛回身體

            glRotatef(angle[1],0,0,1);///旋轉，對z軸轉

            glTranslatef(-0.7,-0.4,0);///把手臂旋轉中心放在正中心

            glColor3f(0,1,0);///綠色

            glRectf(0.7,0.5,1.0,0.3);///下手肘

        glPopMatrix();

    glPopMatrix();

    glPushMatrix();///左半部

    glTranslatef(-0.3,0.4,0);///把手臂掛回身體

    glRotatef(angle[2],0,0,1);///旋轉，對z軸轉

    glTranslatef(0.3,-0.4,0);///把手臂旋轉中心放在正中心

        glColor3f(1,0,0);///紅色

        glRectf(-0.3,0.5,-0.7,0.3);///上手臂

        glPushMatrix();

            glTranslatef(-0.7,0.4,0);///把手臂掛回身體

            glRotatef(angle[3],0,0,1);///旋轉，對z軸轉

            glTranslatef(0.7,-0.4,0);///把手臂旋轉中心放在正中心

            glColor3f(0,1,0);///綠色

            glRectf(-0.7,0.5,-1.0,0.3);///下手肘

        glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutInitWindowSize(600,600);

    glutCreateWindow("week13 rect TRT TRT");

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutDisplayFunc(display);

    glutMainLoop();

}

```

step02

file-new-project week14_angle_fprintf_fscanf

1.複製動作(壓住r鍵)

```c++

#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("%.1f ",angle[i]);///小黑印出來

        fprintf(fout,"%.1f ",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();///重畫畫面

}

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);

    myWrite();

    oldX=x;

    glutPostRedisplay();///請glut重畫畫面

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,1);///白色

    glRectf(0.3,0.5,-0.3,-0.5);///四邊形

    glPushMatrix();///右半部

    glTranslatef(0.3,0.4,0);///把手臂掛回身體

    glRotatef(angle[0],0,0,1);///旋轉，對z軸轉

    glTranslatef(-0.3,-0.4,0);///把手臂旋轉中心放在正中心

        glColor3f(1,0,0);///紅色

        glRectf(0.3,0.5,0.7,0.3);///上手臂

        glPushMatrix();

            glTranslatef(0.7,0.4,0);///把手臂掛回身體

            glRotatef(angle[1],0,0,1);///旋轉，對z軸轉

            glTranslatef(-0.7,-0.4,0);///把手臂旋轉中心放在正中心

            glColor3f(0,1,0);///綠色

            glRectf(0.7,0.5,1.0,0.3);///下手肘

        glPopMatrix();

    glPopMatrix();

    glPushMatrix();///左半部

    glTranslatef(-0.3,0.4,0);///把手臂掛回身體

    glRotatef(angle[2],0,0,1);///旋轉，對z軸轉

    glTranslatef(0.3,-0.4,0);///把手臂旋轉中心放在正中心

        glColor3f(1,0,0);///紅色

        glRectf(-0.3,0.5,-0.7,0.3);///上手臂

        glPushMatrix();

            glTranslatef(-0.7,0.4,0);///把手臂掛回身體

            glRotatef(angle[3],0,0,1);///旋轉，對z軸轉

            glTranslatef(0.7,-0.4,0);///把手臂旋轉中心放在正中心

            glColor3f(0,1,0);///綠色

            glRectf(-0.7,0.5,-1.0,0.3);///下手肘

        glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutInitWindowSize(600,600);

    glutCreateWindow("week14 angle fprintf fscanf");

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutDisplayFunc(display);

    glutMainLoop();

}

```

2.

notepad++的.cbp檔之中的 working_dir="......."改成working_dir="."並存檔

codeblocks reload

freeglut.dll 從freeglut/bin複製至專案

step03

1.glutTimeFunc()計時器

```c++

#include <GL/glut.h>

#include <stdio.h>

void timer(int t)

{

    printf("起床,現在時間: %d\n",t);

}

void display()

{

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week14 timer");

    glutTimerFunc(1000,timer,1);

    glutTimerFunc(2000,timer,2);

    glutTimerFunc(3000,timer,3);

    glutTimerFunc(4000,timer,4);

    glutTimerFunc(5000,timer,5);

    glutDisplayFunc(display);

    glutMainLoop();

}

```

2.自動計時

```c++

#include <GL/glut.h>

#include <stdio.h>

void timer(int t)

{

    printf("起床,現在時間: %d\n",t);

    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(5000,timer,0);///設定5秒後，從0開始計時

    glutDisplayFunc(display);

    glutMainLoop();

}

```

3.播放聲音PlaySound()

#include <mmsystem.h>

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

```c++

#include <GL/glut.h>

#include <stdio.h>

#include <mmsystem.h>

void timer(int t)

{

    printf("我起床囉! %d\n",t);

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

    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(5000,timer,0);///設定5秒後，從0開始計時

    glutDisplayFunc(display);

    glutMainLoop();

}

```

Different Dimension Demon的契約書 week13

 step01

1.week13_rect_TRT

四角形

```c++

#include <GL/glut.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glRectf(0.3,0.5,-0.3,-0.5);///四邊形

    glutSwapBuffers();

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutInitWindowSize(600,600);

    glutCreateWindow("week13 rect TRT");

    glutDisplayFunc(display);

    glutMainLoop();

}

```

2.加色彩

TRT程式碼

```

#include <GL/glut.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,1);

    glRectf(0.3,0.5,-0.3,-0.5);///四邊形

    glPushMatrix();

        glColor3f(1,0,0);

        glRectf(0.3,0.5,0.7,0.3);

    glPopMatrix();

    glutSwapBuffers();

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutInitWindowSize(600,600);

    glutCreateWindow("week13 rect TRT");

    glutDisplayFunc(display);

    glutMainLoop();

}

```

3.把旋轉中心放在正中心

glTranslatef(-0.3,-0.4,0);///把手臂旋轉中心放在正中心

```

#include <GL/glut.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,1);

    glRectf(0.3,0.5,-0.3,-0.5);///四邊形

    glPushMatrix();

    glTranslatef(-0.3,-0.4,0);///把手臂旋轉中心放在正中心

        glColor3f(1,0,0);

        glRectf(0.3,0.5,0.7,0.3);

    glPopMatrix();

    glutSwapBuffers();

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutInitWindowSize(600,600);

    glutCreateWindow("week13 rect TRT");

    glutDisplayFunc(display);

    glutMainLoop();

}

```

旋轉

```c++

#include <GL/glut.h>

float angle=45;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,1);

    glRectf(0.3,0.5,-0.3,-0.5);///四邊形

    glPushMatrix();

    glRotatef(angle,0,0,1);///旋轉，對z軸轉

    glTranslatef(-0.3,-0.4,0);///把手臂旋轉中心放在正中心

        glColor3f(1,0,0);

        glRectf(0.3,0.5,0.7,0.3);

    glPopMatrix();

    glutSwapBuffers();

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutInitWindowSize(600,600);

    glutCreateWindow("week13 rect TRT");

    glutDisplayFunc(display);

    glutMainLoop();

}

```

把手臂掛回身體

```c++

#include <GL/glut.h>

float angle=45;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,1);

    glRectf(0.3,0.5,-0.3,-0.5);///四邊形

    glPushMatrix();

    glTranslatef(0.3,0.4,0);///把手臂掛回身體

    glRotatef(angle,0,0,1);///旋轉，對z軸轉

    glTranslatef(-0.3,-0.4,0);///把手臂旋轉中心放在正中心

        glColor3f(1,0,0);

        glRectf(0.3,0.5,0.7,0.3);

    glPopMatrix();

    glutSwapBuffers();

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutInitWindowSize(600,600);

    glutCreateWindow("week13 rect TRT");

    glutDisplayFunc(display);

    glutMainLoop();

}

```

step02

1.用mouse motoin來旋轉

```c++

#include <GL/glut.h>

float angle=45,oldX=0;

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

{

    oldX=x;

}

void motion(int x,int y)

{

    angle+=(x-oldX);

    oldX=x;

    glutPostRedisplay();///請glut重畫畫面

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,1);

    glRectf(0.3,0.5,-0.3,-0.5);///四邊形

    glPushMatrix();

    glTranslatef(0.3,0.4,0);///把手臂掛回身體

    glRotatef(angle,0,0,1);///旋轉，對z軸轉

    glTranslatef(-0.3,-0.4,0);///把手臂旋轉中心放在正中心

        glColor3f(1,0,0);

        glRectf(0.3,0.5,0.7,0.3);

    glPopMatrix();

    glutSwapBuffers();

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutInitWindowSize(600,600);

    glutCreateWindow("week13 rect TRT");

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutDisplayFunc(display);

    glutMainLoop();

}

```

2.新開week13__TRT_TRT

加上綠色下手肘

```c++

#include <GL/glut.h>

float angle=0,oldX=0;

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

{

    oldX=x;

}

void motion(int x,int y)

{

    angle+=(x-oldX);

    oldX=x;

    glutPostRedisplay();///請glut重畫畫面

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,1);///白色

    glRectf(0.3,0.5,-0.3,-0.5);///四邊形

    glPushMatrix();

    glTranslatef(0.3,0.4,0);///把手臂掛回身體

    glRotatef(angle,0,0,1);///旋轉，對z軸轉

    glTranslatef(-0.3,-0.4,0);///把手臂旋轉中心放在正中心

        glColor3f(1,0,0);///紅色

        glRectf(0.3,0.5,0.7,0.3);///上手臂

        glPushMatrix();

            //glTranslatef(0.3,0.4,0);///把手臂掛回身體

            //glRotatef(angle,0,0,1);///旋轉，對z軸轉

            //glTranslatef(-0.3,-0.4,0);///把手臂旋轉中心放在正中心

            glColor3f(0,1,0);///綠色

            glRectf(0.7,0.5,1.0,0.3);///下手肘

        glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutInitWindowSize(600,600);

    glutCreateWindow("week13 rect TRT");

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutDisplayFunc(display);

    glutMainLoop();

}

```

擺動手臂

```c++

#include <GL/glut.h>

float angle=0,oldX=0;

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

{

    oldX=x;

}

void motion(int x,int y)

{

    angle+=(x-oldX);

    oldX=x;

    glutPostRedisplay();///請glut重畫畫面

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,1);///白色

    glRectf(0.3,0.5,-0.3,-0.5);///四邊形

    glPushMatrix();

    glTranslatef(0.3,0.4,0);///把手臂掛回身體

    glRotatef(angle,0,0,1);///旋轉，對z軸轉

    glTranslatef(-0.3,-0.4,0);///把手臂旋轉中心放在正中心

        glColor3f(1,0,0);///紅色

        glRectf(0.3,0.5,0.7,0.3);///上手臂

        glPushMatrix();

            glTranslatef(0.7,0.4,0);///把手臂掛回身體

            glRotatef(angle,0,0,1);///旋轉，對z軸轉

            glTranslatef(-0.7,-0.4,0);///把手臂旋轉中心放在正中心

            glColor3f(0,1,0);///綠色

            glRectf(0.7,0.5,1.0,0.3);///下手肘

        glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutInitWindowSize(600,600);

    glutCreateWindow("week13 rect TRT TRT");

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutDisplayFunc(display);

    glutMainLoop();

}

```

step03

1.week13_rect_many TRT

加左半部的手

```c++

#include <GL/glut.h>

float angle=0,oldX=0;

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

{

    oldX=x;

}

void motion(int x,int y)

{

    angle+=(x-oldX);

    oldX=x;

    glutPostRedisplay();///請glut重畫畫面

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,1);///白色

    glRectf(0.3,0.5,-0.3,-0.5);///四邊形

    glPushMatrix();///右半部

    glTranslatef(0.3,0.4,0);///把手臂掛回身體

    glRotatef(angle,0,0,1);///旋轉，對z軸轉

    glTranslatef(-0.3,-0.4,0);///把手臂旋轉中心放在正中心

        glColor3f(1,0,0);///紅色

        glRectf(0.3,0.5,0.7,0.3);///上手臂

        glPushMatrix();

            glTranslatef(0.7,0.4,0);///把手臂掛回身體

            glRotatef(angle,0,0,1);///旋轉，對z軸轉

            glTranslatef(-0.7,-0.4,0);///把手臂旋轉中心放在正中心

            glColor3f(0,1,0);///綠色

            glRectf(0.7,0.5,1.0,0.3);///下手肘

        glPopMatrix();

    glPopMatrix();

    glPushMatrix();///左半部

    glTranslatef(-0.3,0.4,0);///把手臂掛回身體

    glRotatef(angle,0,0,1);///旋轉，對z軸轉

    glTranslatef(0.3,-0.4,0);///把手臂旋轉中心放在正中心

        glColor3f(1,0,0);///紅色

        glRectf(-0.3,0.5,-0.7,0.3);///上手臂

        glPushMatrix();

            glTranslatef(-0.7,0.4,0);///把手臂掛回身體

            glRotatef(angle,0,0,1);///旋轉，對z軸轉

            glTranslatef(0.7,-0.4,0);///把手臂旋轉中心放在正中心

            glColor3f(0,1,0);///綠色

            glRectf(-0.7,0.5,-1.0,0.3);///下手肘

        glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutInitWindowSize(600,600);

    glutCreateWindow("week13 rect TRT TRT");

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutDisplayFunc(display);

    glutMainLoop();

}

```

2.多關節，用keyboard操控

```c++

#include <GL/glut.h>

float angle[20],oldX=0;

int angleID=0;

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;

    glutPostRedisplay();///請glut重畫畫面

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,1);///白色

    glRectf(0.3,0.5,-0.3,-0.5);///四邊形

    glPushMatrix();///右半部

    glTranslatef(0.3,0.4,0);///把手臂掛回身體

    glRotatef(angle[0],0,0,1);///旋轉，對z軸轉

    glTranslatef(-0.3,-0.4,0);///把手臂旋轉中心放在正中心

        glColor3f(1,0,0);///紅色

        glRectf(0.3,0.5,0.7,0.3);///上手臂

        glPushMatrix();

            glTranslatef(0.7,0.4,0);///把手臂掛回身體

            glRotatef(angle[1],0,0,1);///旋轉，對z軸轉

            glTranslatef(-0.7,-0.4,0);///把手臂旋轉中心放在正中心

            glColor3f(0,1,0);///綠色

            glRectf(0.7,0.5,1.0,0.3);///下手肘

        glPopMatrix();

    glPopMatrix();

    glPushMatrix();///左半部

    glTranslatef(-0.3,0.4,0);///把手臂掛回身體

    glRotatef(angle[2],0,0,1);///旋轉，對z軸轉

    glTranslatef(0.3,-0.4,0);///把手臂旋轉中心放在正中心

        glColor3f(1,0,0);///紅色

        glRectf(-0.3,0.5,-0.7,0.3);///上手臂

        glPushMatrix();

            glTranslatef(-0.7,0.4,0);///把手臂掛回身體

            glRotatef(angle[3],0,0,1);///旋轉，對z軸轉

            glTranslatef(0.7,-0.4,0);///把手臂旋轉中心放在正中心

            glColor3f(0,1,0);///綠色

            glRectf(-0.7,0.5,-1.0,0.3);///下手肘

        glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutInitWindowSize(600,600);

    glutCreateWindow("week13 rect TRT TRT");

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutDisplayFunc(display);

    glutMainLoop();

}

```