先將上周的檔案打開
接著我們要寫用鍵盤控制他們的程式碼
#include <stdio.h>
#include <GL/glut.h>
float angle[20]={},diff=2;
int angleID=0;
void timer(int t)
{
glutTimerFunc(30,timer,t+1);
angle[angleID] += diff;
if(angle[angleID]>90) diff= -2;
if(angle[angleID]<0) diff= +2;
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();///Step05-2
glutSolidTeapot( 0.3 );///身體
glPushMatrix();
glTranslatef(-0.3,0,0);
glRotatef(angle[0], 0,0,1);
glTranslatef(-0.3,0,0);
glutSolidTeapot( 0.3 );///左手臂, 但是,要用 T-R-T移位置
glPushMatrix();
glTranslatef(-0.3, 0,0);
glRotatef(angle[1], 0,0,1);
glTranslatef(-0.3, 0,0);
glutSolidTeapot( 0.3 );///左手肘
glPopMatrix();
glPopMatrix();
glPushMatrix();
glTranslatef(+0.3,0,0);
glRotatef(-angle[2], 0,0,1);
glTranslatef(+0.3,0,0);
glutSolidTeapot( 0.3 );///右手臂
glPushMatrix();///step05-3
glTranslatef(+0.3,0,0);
glRotatef(-angle[3], 0,0,1);
glTranslatef(+0.3,0,0);
glutSolidTeapot( 0.3 );///右手肘
glPopMatrix();///Step05-3
glPopMatrix();///Step05-2
glPopMatrix();///Step05-2
glutSwapBuffers();
}
int main(int argc, char **argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week_16");
glutKeyboardFunc( keyboard );
glutDisplayFunc(display);
glutTimerFunc(0 , timer,0);
glutMainLoop();
}
執行結果如下
現在我們不要用timer,讓他一開始都不會動,鍵盤0.1.2.3選擇一個按鍵,再利用滑鼠去控制他
#include <stdio.h>
#include <GL/glut.h>
float angle[20]={},diff=2;
int angleID=0;
void timer(int t)
{
/*glutTimerFunc(30,timer,t+1);
angle[angleID] += diff;
if(angle[angleID]>90) diff= -2;
if(angle[angleID]<0) diff= +2;
glutPostRedisplay();
*/
}
int oldX=0,oldY=0;
void mouse(int button,int state,int x, int y)
{
oldX = x;
oldY = y;
}
void motion (int x,int y)
{
angle[angleID] += x - oldX;
oldX = x;
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();///Step05-2
glutSolidTeapot( 0.3 );///身體
glPushMatrix();
glTranslatef(-0.3,0,0);
glRotatef(angle[0], 0,0,1);
glTranslatef(-0.3,0,0);
glutSolidTeapot( 0.3 );///左手臂, 但是,要用 T-R-T移位置
glPushMatrix();
glTranslatef(-0.3, 0,0);
glRotatef(angle[1], 0,0,1);
glTranslatef(-0.3, 0,0);
glutSolidTeapot( 0.3 );///左手肘
glPopMatrix();
glPopMatrix();
glPushMatrix();
glTranslatef(+0.3,0,0);
glRotatef(-angle[2], 0,0,1);
glTranslatef(+0.3,0,0);
glutSolidTeapot( 0.3 );///右手臂
glPushMatrix();///step05-3
glTranslatef(+0.3,0,0);
glRotatef(-angle[3], 0,0,1);
glTranslatef(+0.3,0,0);
glutSolidTeapot( 0.3 );///右手肘
glPopMatrix();///Step05-3
glPopMatrix();///Step05-2
glPopMatrix();///Step05-2
glutSwapBuffers();
}
int main(int argc, char **argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week_16");
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutKeyboardFunc( keyboard );
glutDisplayFunc(display);
glutTimerFunc(0 , timer,0);
glutMainLoop();
}
執行結果如下
接著我們寫一個可以知道他位子的程式碼,然後將這些結果存進txt檔
#include <stdio.h>
#include <GL/glut.h>
float angle[20]={},diff=2;
int angleID=0;
void timer(int t)
{
/*glutTimerFunc(30,timer,t+1);
angle[angleID] += diff;
if(angle[angleID]>90) diff= -2;
if(angle[angleID]<0) diff= +2;
glutPostRedisplay();
*/
}
int oldX=0,oldY=0;
void mouse(int button,int state,int x, int y)
{
oldX = x;
oldY = y;
}
void motion (int x,int y)
{
angle[angleID] += x - oldX;
oldX = x;
glutPostRedisplay();
}
#include <stdio.h>
FILE * fout = NULL;
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'){
if(fout == NULL) fout = fopen("angle.txt","w+");
for(int i=0;i<20;i++) printf("%.2f",angle[i]);
printf("\n");
for(int i=0;i<20;i++) fprintf(fout,"%.2f",angle[i]);
fprintf(fout,"\n");
}
}
void display()
{
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
glPushMatrix();///Step05-2
glutSolidTeapot( 0.3 );///身體
glPushMatrix();
glTranslatef(-0.3,0,0);
glRotatef(angle[0], 0,0,1);
glTranslatef(-0.3,0,0);
glutSolidTeapot( 0.3 );///左手臂, 但是,要用 T-R-T移位置
glPushMatrix();
glTranslatef(-0.3, 0,0);
glRotatef(angle[1], 0,0,1);
glTranslatef(-0.3, 0,0);
glutSolidTeapot( 0.3 );///左手肘
glPopMatrix();
glPopMatrix();
glPushMatrix();
glTranslatef(+0.3,0,0);
glRotatef(-angle[2], 0,0,1);
glTranslatef(+0.3,0,0);
glutSolidTeapot( 0.3 );///右手臂
glPushMatrix();///step05-3
glTranslatef(+0.3,0,0);
glRotatef(-angle[3], 0,0,1);
glTranslatef(+0.3,0,0);
glutSolidTeapot( 0.3 );///右手肘
glPopMatrix();///Step05-3
glPopMatrix();///Step05-2
glPopMatrix();///Step05-2
glutSwapBuffers();
}
int main(int argc, char **argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week_16");
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutKeyboardFunc( keyboard );
glutDisplayFunc(display);
glutTimerFunc(0 , timer,0);
glutMainLoop();
}
執行結果如下

重開檔案後,按r會跑剛剛存的檔案
#include <stdio.h>
#include <GL/glut.h>
float angle[20]={},diff=2;
int angleID=0;
void timer(int t)
{
/*glutTimerFunc(30,timer,t+1);
angle[angleID] += diff;
if(angle[angleID]>90) diff= -2;
if(angle[angleID]<0) diff= +2;
glutPostRedisplay();
*/
}
int oldX=0,oldY=0;
void mouse(int button,int state,int x, int y)
{
oldX = x;
oldY = y;
}
void motion (int x,int y)
{
angle[angleID] += x - oldX;
oldX = x;
glutPostRedisplay();
}
#include <stdio.h>
FILE * fout = NULL;
FILE * fin = NULL;
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'){
if(fout == NULL) fout = fopen("angle.txt","w+");
for(int i=0;i<20;i++) printf("%.2f",angle[i]);
printf("\n");
for(int i=0;i<20;i++) fprintf(fout,"%.2f",angle[i]);
fprintf(fout,"\n");
}
if(key=='r'){
if(fin == NULL)fin = fopen("angle.txt","r");
for(int i=0;i<20;i++) fscanf(fin,"%f",&angle[i]);
glutPostRedisplay();
}
}
void display()
{
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
glPushMatrix();///Step05-2
glutSolidTeapot( 0.3 );///身體
glPushMatrix();
glTranslatef(-0.3,0,0);
glRotatef(angle[0], 0,0,1);
glTranslatef(-0.3,0,0);
glutSolidTeapot( 0.3 );///左手臂, 但是,要用 T-R-T移位置
glPushMatrix();
glTranslatef(-0.3, 0,0);
glRotatef(angle[1], 0,0,1);
glTranslatef(-0.3, 0,0);
glutSolidTeapot( 0.3 );///左手肘
glPopMatrix();
glPopMatrix();
glPushMatrix();
glTranslatef(+0.3,0,0);
glRotatef(-angle[2], 0,0,1);
glTranslatef(+0.3,0,0);
glutSolidTeapot( 0.3 );///右手臂
glPushMatrix();///step05-3
glTranslatef(+0.3,0,0);
glRotatef(-angle[3], 0,0,1);
glTranslatef(+0.3,0,0);
glutSolidTeapot( 0.3 );///右手肘
glPopMatrix();///Step05-3
glPopMatrix();///Step05-2
glPopMatrix();///Step05-2
glutSwapBuffers();
}
int main(int argc, char **argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week_16");
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutKeyboardFunc( keyboard );
glutDisplayFunc(display);
glutTimerFunc(0 , timer,0);
glutMainLoop();
}
#include <stdio.h>
#include <GL/glut.h>
float angle[20]={},diff=2;
int angleID=0;
void timer(int t)
{
/*glutTimerFunc(30,timer,t+1);
angle[angleID] += diff;
if(angle[angleID]>90) diff= -2;
if(angle[angleID]<0) diff= +2;
glutPostRedisplay();
*/
}
int oldX=0,oldY=0;
void mouse(int button,int state,int x, int y)
{
oldX = x;
oldY = y;
}
#include <stdio.h>
FILE * fout = NULL;
FILE * fin = NULL;
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++) printf("%.2f ",angle[i]);
printf("\n");
for(int i=0;i<20;i++) fprintf(fout,"%.2f",angle[i]);
fprintf(fout,"\n");
}
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'){
if(fout == NULL) fout = fopen("angle.txt","w+");
for(int i=0;i<20;i++) printf("%.2f",angle[i]);
printf("\n");
for(int i=0;i<20;i++) fprintf(fout,"%.2f",angle[i]);
fprintf(fout,"\n");
}
if(key=='r'){
if(fin == NULL)fin = fopen("angle.txt","r");
for(int i=0;i<20;i++) fscanf(fin,"%f",&angle[i]);
glutPostRedisplay();
}
}
void display()
{
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
glPushMatrix();///Step05-2
glutSolidTeapot( 0.3 );///身體
glPushMatrix();
glTranslatef(-0.3,0,0);
glRotatef(angle[0], 0,0,1);
glTranslatef(-0.3,0,0);
glutSolidTeapot( 0.3 );///左手臂, 但是,要用 T-R-T移位置
glPushMatrix();
glTranslatef(-0.3, 0,0);
glRotatef(angle[1], 0,0,1);
glTranslatef(-0.3, 0,0);
glutSolidTeapot( 0.3 );///左手肘
glPopMatrix();
glPopMatrix();
glPushMatrix();
glTranslatef(+0.3,0,0);
glRotatef(-angle[2], 0,0,1);
glTranslatef(+0.3,0,0);
glutSolidTeapot( 0.3 );///右手臂
glPushMatrix();///step05-3
glTranslatef(+0.3,0,0);
glRotatef(-angle[3], 0,0,1);
glTranslatef(+0.3,0,0);
glutSolidTeapot( 0.3 );///右手肘
glPopMatrix();///Step05-3
glPopMatrix();///Step05-2
glPopMatrix();///Step05-2
glutSwapBuffers();
}
int main(int argc, char **argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week_16");
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutKeyboardFunc( keyboard );
glutDisplayFunc(display);
glutTimerFunc(0 , timer,0);
glutMainLoop();
}
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