總複習
#include <GL/glut.h>
#include <stdio.h>
FILE * fout = NULL;
FILE * fin = NULL;
float angle[20]={}, angleOld[20], angleNew[20];///先都設成0
int angleID=0;///現在要動的關節是誰?
void timer(int t){
glutTimerFunc( 20, timer, t+1);
if(t%25==0){
for(int i=0; i<20; i++) angleOld[i] = angleNew[i];
if( fin==NULL ) fin = fopen("angle.txt", "r");
for(int i=0; i<20; i++) fscanf(fin, "%f", &angleNew[i]);
printf("read angle.txt\n");
}
float alpha = (t%25)/25.0;///介於 0.0 舊 - 1.0 新 之間 (請代入 0, 0.5, 1 觀察)
for(int i=0; i<20; i++) angle[i] = alpha*angleNew[i]+(1-alpha)*angleOld[i];
glutPostRedisplay();///重畫畫面
}
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;
if(key=='4') angleID=4;
if(key=='5') angleID=5;
if(key=='6') angleID=6;
if(key=='p'){///Play播放
glutTimerFunc(0, timer, 0);///一開始的第1個timer
}
if(key=='s'){///存檔
if( fout==NULL ) fout = fopen("angle.txt", "w+");
for(int i=0; i<20; i++) fprintf(fout, "%.2f ", angle[i]);
fprintf(fout, "\n");
printf("save angle.txt\n");
}else if(key=='r'){///讀檔 (不能和存檔同時做,因angle.txt不能開2次)
if( fin==NULL ) fin = fopen("angle.txt", "r");
for(int i=0; i<20; i++) fscanf(fin, "%f", &angle[i]);
glutPostRedisplay();///重畫畫面
printf("read angle.txt\n");
}
}///如果關節很多, 可能要用迴圈來讓程式只要2行 for(int i=0; i<10; i++)
///可能也要用到英文字母
float oldX=0;
void mouse(int button, int state, int x, int y){
oldX = x;
}
void motion( int x, int y ){
angle[angleID] += x-oldX;///0: angle[0], 1: angle[1]..
oldX = x;
glutPostRedisplay();///重畫畫面
}
void display(){
glClearColor( 1,0,0,0);///用來Clear的Color 用紅色
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glColor3f( 1,1,0 );
glutSolidTeapot( 0.3 );///身體先註解掉身體,只看手臂
glPushMatrix();///左半邊
glTranslatef(-.3, 0, 0);///(3)再把轉動中的手臂,掛到肩上
glRotatef(angle[0], 0,0,1);///(2)再轉動它
glTranslatef(-.3, .1, 0);///(1)移動旋轉中心,放正中心
glutSolidTeapot(0.3);///左手臂
glPushMatrix();
glTranslatef(-.3, 0, 0);///(3)再把轉動中的手臂,掛到肩上
glRotatef(angle[1], 0,0,1);///(2)再轉動它
glTranslatef(-.3, 0, 0);///(1)移動旋轉中心,放正中心
glutSolidTeapot(0.3);///左手肘
glPopMatrix();
glPopMatrix();
glPushMatrix();///右半邊
glTranslatef(+.3, 0, 0);///(3)再把轉動中的手臂,掛到肩上
glRotatef(angle[2], 0,0,1);///(2)再轉動它
glTranslatef(+.3, .1, 0);///(1)移動旋轉中心,放正中心
glutSolidTeapot(0.3);///右手臂
glPushMatrix();
glTranslatef(+.3, 0, 0);///(3)再把轉動中的手臂,掛到肩上
glRotatef(angle[3], 0,0,1);///(2)再轉動它
glTranslatef(+.3, 0, 0);///(1)移動旋轉中心,放正中心
glutSolidTeapot(0.3);///右手肘
glPopMatrix();
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
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 };
int main( int argc, char ** argv )
{
glutInit( &argc, argv);
glutInitWindowSize(300,300);
glutInitWindowPosition(700,200);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week17 review");
glutKeyboardFunc(keyboard);
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutDisplayFunc(display);
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();
}
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