機器人
1. 延續上禮拜的程式
-原本只有做左邊，加上了右邊
-原本自動轉，換成用滑鼠轉動
#include <stdio.h>
#include <GL/glut.h>
float angle[20]={}, diff=2;
int angleID=0;
int oldX=0;
void timer(int t)///timer不用動，改keyboard動
{
///程式搬家，改用mouse motion來做動作
}
void mouse(int button, int state, int x, int y)
{
oldX = x;///當mouse按下去時記下位置
}
void motion(int x, int y)///當我motion動
{
angle[angleID] += x - oldX;///用x-oldX
oldX = x;///再更新位置
glutPostRedisplay();
}
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 display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glutSolidTeapot(0.3);///身體
glPushMatrix();///左邊
glTranslatef(-0.3,0,0);
glRotatef(angle[0], 0,0,1);
glTranslatef(-0.3,0,0);
glutSolidTeapot(0.2);
glPushMatrix();
glTranslatef(-0.3,0,0);
glRotatef(angle[1], 0,0,1);
glTranslatef(-0.3,0,0);
glutSolidTeapot(0.2);
glPopMatrix();
glPopMatrix();
glPushMatrix();///右邊
glTranslatef(0.3,0,0);
glRotatef(angle[0], 0,0,1);
glTranslatef(0.3,0,0);
glutSolidTeapot(0.2);
glPushMatrix();
glTranslatef(0.3,0,0);
glRotatef(angle[1], 0,0,1);
glTranslatef(0.3,0,0);
glutSolidTeapot(0.2);
glPopMatrix();
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week15");
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutKeyboardFunc(keyboard);
glutTimerFunc(0,timer,0);
glutDisplayFunc(display);
glutMainLoop();
}
2. 印出資料
#include <stdio.h>
#include <GL/glut.h>
float angle[20]={}, diff=2;
int angleID=0;
int oldX=0;
FILE * fout = NULL;
void timer(int t)
{
}
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();
if(fout==NULL) fout=fopen("angle.txt", "w+");
for(int i=0; i<20; i++) fprintf(fout, "%.1f ", angle[i]);
fprintf(fout, "\n");///印到.txt檔案裡
for(int i=0; i<20; i++) printf("%.1f ", angle[i]);
printf("\n");///印到畫面
}
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;
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glutSolidTeapot(0.3);
glPushMatrix();
glTranslatef(-0.3,0,0);
glRotatef(angle[0], 0,0,1);
glTranslatef(-0.3,0,0);
glutSolidTeapot(0.2);
glPushMatrix();
glTranslatef(-0.3,0,0);
glRotatef(angle[1], 0,0,1);
glTranslatef(-0.3,0,0);
glutSolidTeapot(0.2);
glPopMatrix();
glPopMatrix();
glPushMatrix();
glTranslatef(0.3,0,0);
glRotatef(angle[2], 0,0,1);
glTranslatef(0.3,0,0);
glutSolidTeapot(0.2);
glPushMatrix();
glTranslatef(0.3,0,0);
glRotatef(angle[3], 0,0,1);
glTranslatef(0.3,0,0);
glutSolidTeapot(0.2);
glPopMatrix();
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week15");
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutKeyboardFunc(keyboard);
glutTimerFunc(0,timer,0);
glutDisplayFunc(display);
glutMainLoop();
}
 |
| *因為我沒有改到工作位置，所以在freeglut\bin裡* |
3. 撥放動畫
#include <stdio.h>
#include <GL/glut.h>
float angle[20]={}, diff=2;
int angleID=0;
int oldX=0;
FILE * fout = NULL;
FILE * fin = NULL;///檔案指標
void timer(int t)
{
glutTimerFunc(30, timer, t+1);///播放動畫
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
}
4. 先存動作，再讀動作
#include <stdio.h>
#include <GL/glut.h>
float angle[20]={}, diff=2;
int angleID=0;
int oldX=0;
FILE * fout = NULL;
FILE * fin = NULL;
void timer(int t)
{
// glutTimerFunc(30, timer, t+1);///播放動畫
// 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
}
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();
// if(fout==NULL) fout=fopen("angle.txt", "w+");
// for(int i=0; i<20; i++) fprintf(fout, "%.1f ", angle[i]);
// fprintf(fout, "\n");///印到.txt檔案裡
// for(int i=0; i<20; i++) printf("%.1f ", angle[i]);
// printf("\n");///印到畫面
}
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=='s')///save
{
if(fout==NULL) fout=fopen("angle.txt", "w+");
for(int i=0; i<20; i++) fprintf(fout, "%.1f ", angle[i]);
fprintf(fout, "\n");
for(int i=0; i<20; i++) printf("%.1f ", angle[i]);
printf("\n");
}
if(key=='r')///read
{
if(fin==NULL) fin=fopen("angle.txt", "r");
for(int i=0; i<20; i++) fscanf(fin, "%f", &angle[i]);
glutPostRedisplay();
}
if(key=='p')///play
{
}
}
 |
| 按s之後存下位置數值，關掉黑窗自動存檔angle.txt |
 |
| 複製數值(動作位置) |
 |
| 按r讀取數值 |
5. 讓他連續動作
#include <stdio.h>
#include <GL/glut.h>
float angle[20]={}, diff=2;///angle[i]畫的角度，內插angleold[i] anglenew[i]
float angleold[20]={}, anglenew[20]={};///新舊角度內插
int angleID=0;
int oldX=0;
FILE * fout = NULL;
FILE * fin = NULL;
void timer(int t)
{
glutTimerFunc(30, timer, t+1);
if(t%10==0)///每10frame，就讀一筆新資料
{
for(int i=0; i<20; i++) angleold[i] = anglenew[i];
///讀新資料之前要先把資料備份
if(fin==NULL) fin=fopen("angle.txt", "r");
for(int i=0; i<20; i++) fscanf(fin, "%f", &anglenew[i]);
} ///再讀新資料
float alpha = (t%10)/10.0;
for(int i=0; i<20; i++)
{
angle[i] = alpha*anglenew[i] + (1-alpha)*angleold[i];
}
glutPostRedisplay();
}
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