Note by Jack Week16

隨心所欲儲存動作

感謝小葉提供程式碼!

#include <GL/glut.h>

///int angle[10]={0,0,0,0,0, 0,0,0,0,0};///如果關節要變多

int angle[20]={};///全部先放0 ///Week1603

///可以讓移動也加進去 x,y

void display()

{

 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

 glPushMatrix();

        glTranslatef( angle[11]/100.0, angle[12]/100.0, angle[13]/100.0 );

        ///Week1603 原來的int會變float -1.0 ... +1.0

        glColor3f(1,1,1);///白色

  glutSolidTeapot(0.3);///body

  glPushMatrix();///右邊

            glTranslatef(0.3, 0,0);

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

            glTranslatef(0.2, 0,0);///最重要,旋轉中心要放在中心

            glColor3f(1,0,0);///紅色

            glutSolidTeapot(0.2);///右上手臂

            glPushMatrix();///右下手臂

                glTranslatef(0.2, 0,0);

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

                glTranslatef(0.2, 0,0);

                glColor3f(1,1,0);///黃

                glutSolidTeapot(0.2);

            glPopMatrix();

  glPopMatrix();

  glPushMatrix();///左邊

            glTranslatef(-0.3, 0,0);

            glRotatef(angle[2], 0,0,1);///轉動

            glTranslatef(-0.2, 0,0);///最重要,旋轉中心要放在中心

            glColor3f(0,1,0);///綠色

            glutSolidTeapot(0.2);///左上手臂

            glPushMatrix();

                glTranslatef(-0.2, 0,0);

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

                glTranslatef(-0.2, 0,0);

                glColor3f(0,0,1);///藍色

                glutSolidTeapot(0.2);///左下手臂

            glPopMatrix();

  glPopMatrix();

 glPopMatrix();

 glutSwapBuffers();

}

int angleID=0;///TODO2:要動哪個關節

int oldX=0, oldY=0;///TODO2:

#include <stdio.h>///TODO3: //TODO4:記得要移高一點哦!

FILE * fout=NULL;///TODO3: 檔案是NULL

FILE * fin=NULL;///TODO4: File Input (fin)

void readAll()///TODO5: 把程式碼拉出來, 變成函式 readAll();

{

    if(fin==NULL) fin=fopen("motion.txt", "r" );///TODO4: 開檔案

    for(int i=0; i<20; i++){ ///Week1603

        ///scanf(  "%d", &a[i]);

        fscanf(fin,"%d", &angle[i]);///TODO4: 讀入

    }

}

int oldAngle[20];///新的會變成舊的 ///Week162

int newAngle[20];///先讀到新的 ///Week162

void timer(int t)///TODO5: 用timer自動readAll()再更新

{

    glutTimerFunc(20, timer, t+1);///TODO5: 再註冊下一個時間點 20ms 之後

    if(t==0){///第1次進入,先讀新的

        if(fin==NULL) fin=fopen("motion.txt", "r");///Week162

        for(int i=0; i<20; i++){///Week162 ///Week1603

            fscanf(fin, "%d", &newAngle[i]);///Week162

        }

    }

    float alpha = (t%30)/30.0; ///Week162 讓 alpha介於0.0-1.0中間

    if( t%30==0 ){///每次進入橙色區域,就再做一次調整

        for(int i=0; i<20; i++){///Week162 ///Week1603

            oldAngle[i] = newAngle[i];///Week162

            fscanf(fin, "%d", &newAngle[i]);///Week162

        }

    }

    for(int i=0; i<20; i++){///Week162 ///Week1603

        angle[i] = alpha*newAngle[i] + (1-alpha)*oldAngle[i];///Week162 真的內插

        ///printf(" %d", angle[i]);

    }

    ///readAll();

    glutPostRedisplay();

}

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

{

    if(key=='0') angleID=0;///TODO2: 要動的關節

    if(key=='1') angleID=1;///TODO2: 要動的關節

    if(key=='2') angleID=2;///TODO2: 要動的關節

    if(key=='3') angleID=3;///TODO2: 要動的關節

    if(key=='a') angleID=11;///Week1603

    if(key=='r'){///TODO4: 我們要讀檔案囉!!!!

        readAll();///TODO5:

        glutPostRedisplay();///TODO4: 更新畫面/重畫

    }else if(key=='p'){///TODO5: Play播放

        glutTimerFunc(20, timer, 0);///TODO5: 要用timer來自動播放

    }else if(key=='s'){///Week161

        void saveAll();///Week161 函式的宣告,就認識下面這行

        saveAll();///Week161

    }

}

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

{

    oldX=x; oldY=y;///TODO2: mouse按下去時, 記得在哪裡

}

void saveAll()///TODO3:全部存起來

{///TODO3: (第1次是NULL,要把檔案開起來, 以後就不用再開它了...)

    if(fout==NULL) fout=fopen("motion.txt", "w+");///TODO3: 檔案是NULL

    for(int i=0; i<20; i++){ ///Week1603

        printf("%d ", angle[i]);

        fprintf(fout, "%d ", angle[i]);

    }

    printf("\n");

    fprintf(fout, "\n");

}

void motion(int x, int y)

{

    angle[angleID] += (x-oldX);///TODO2: 讓關節動起來

    if(angleID==11){ ///Week1603

        angle[angleID+1] += (oldY-y); ///Week1603

    }

    oldX=x; oldY=y; ///Week1603

    ///Week161 ///saveAll();///TODO3:全部存起來

    glutPostRedisplay();

}

int main(int argc, char**argv)

{

 glutInit(&argc, argv);

 glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

 glutCreateWindow("week14 file");

 glutDisplayFunc(display);

 glutKeyboardFunc(keyboard);///TODO2: keyboard運作

 glutMouseFunc(mouse);///TODO2: mouse

 glutMotionFunc(motion);///TODO2: motion

 glutMainLoop();

}