1.開一個新專案
2.刪光程式碼
3.打開15週的檔案
4.複製15週的程式
#include <stdio.h>
#include <GL/glut.h>
float angle=0, diff=2;///上週程式,會增加、會減少!!!
///float angle[20]={};//都是0的陣列 angle
void timer(int t)///上週程式,會增加、會減少!!!
{
glutTimerFunc( 30, timer, t+1 );///上週程式 設定新的timer
angle += diff;///上週程式,會增加、會減少!!!
if(angle>90) diff = -2;///上週程式,會增加、會減少!!!
if(angle<0) diff = +2;///上週程式,會增加、會減少!!!
glutPostRedisplay();///上週教display();
}
void display()
{
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
glPushMatrix();///Step05-2
glutSolidTeapot( 0.3 );///身體
glPushMatrix();///Step05-2
glTranslatef(-0.3,0,0);
glRotatef(angle, 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, 0,0,1);
glTranslatef(-0.3, 0,0);
glutSolidTeapot( 0.3 );///左手肘
glPopMatrix();
glPopMatrix();///Step05-2
glPushMatrix();///Step05-2
glTranslatef(+0.3,0,0);
glRotatef(-angle, 0,0,1);
glTranslatef(+0.3,0,0);
glutSolidTeapot( 0.3 );///右手臂
glPushMatrix();///step05-3
glTranslatef(+0.3,0,0);
glRotatef(-angle, 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( "week15 many angles" );
glutDisplayFunc( display );
glutTimerFunc( 0, timer, 0);
glutMainLoop();
}///先不放貼圖, 先不放打光
1.再來int angleID=0
2.然後再所有angle後面加上編號,0,1,2,3
if( key=='0') angleID=0;
if( key=='1') angleID=1;
if( key=='2') angleID=2;
if( key=='3') angleID=3;
然後我們不要用timer,讓他她一開始不要動,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();
}
然後我們寫寫一個可以知道他位置的程式碼,並將結果存進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();
}
重開檔案後,案r會跑
#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();
}
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