先將week15的程式碼貼到week16.cpp裡面
然後加入void mouse跟void motion
main()裡面也要加入
glutMouseFunc(mouse);
glutMotionFunc(motion);
程式碼:
#include <stdio.h>///可割可棄
#include <GL/glut.h>
float angle[20]={},diff=2;
int angleID=0;
int oldX=0;
void timer(int t){
///timer裡的內容刪掉
}
void mouse(int button, int state,int x,int y){///滑鼠位置
oldX=x;
}
void motion(int x,int y){///動作控制
angle[angleID]+=x-oldX;
oldX=x;
glutPostRedisplay();
}
void keyboard(unsigned char key,int x,int y){
if(key=='4')angleID=4;
if(key=='3')angleID=3;
if(key=='2')angleID=2;
if(key=='1')angleID=1;
if(key=='0')angleID=0;
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
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(重疊了)
glPushMatrix();
glTranslatef(-0.3,0,0);
glRotatef(angle[1],0,0,1);
glTranslatef(-0.3,0,0);
glutSolidTeapot( 0.3 );///左手肘(重疊了)
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(重疊了)
glPushMatrix();
glTranslatef(0.3,0,0);
glRotatef(angle[3],0,0,1);
glTranslatef(0.3,0,0);
glutSolidTeapot( 0.3 );///右手肘(重疊了)
glPopMatrix();
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main( int argc, char ** argv )
{
glutInit( &argc, argv );
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week16 animation");
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutKeyboardFunc(keyboard);
glutTimerFunc(0,timer,0);
glutDisplayFunc(display);
glutMainLoop();
}
然後再motion裡面加入
for(int i=0;i<20;i++)fprintf(fout,"%.1f ",angle[i]);
fprintf(fout,"\n");
第六行加入
FILE*fout=NULL;
可以在freeglut\bin裡面找到angle.txt
程式碼:
#include <stdio.h>
#include <GL/glut.h>
float angle[20]={}, diff=2;
int angleID=0;
int oldx=0;
FILE * fout = NULL;
FILE * fin = NULL;///播放動畫
void timer(int t)
{
// glutTimerFunc(30,timer,t+1);
// 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");
// for(int i=0;i<20;i++) printf("%.1f", angle[i]);
// printf("\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'){///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();///重畫畫面
}
if(key=='p'){///play利用timer播放
}
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glutSolidTeapot(0.3);
glPushMatrix();///左
glTranslatef(-0.3,0,0);
glRotated(angle[0],0,0,1);
glTranslatef(-0.3,0,0);
glutSolidTeapot(0.3);
glPushMatrix();
glTranslatef(-0.3,0,0);
glRotated(angle[0],0,0,1);
glTranslatef(-0.3,0,0);
glutSolidTeapot(0.3);
glPopMatrix();
glPopMatrix();
glPushMatrix();///右
glTranslatef(+0.3,0,0);
glRotatef(-angle[2],0,0,1);
glTranslatef(+0.3,0,0);
glutSolidTeapot(0.3);
glPushMatrix();
glTranslatef(+0.3,0,0);
glRotatef(-angle[2],0,0,1);
glTranslatef(+0.3,0,0);
glutSolidTeapot(0.3);
glPopMatrix();
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main( int argc, char ** argv )
{
glutInit( &argc, argv );
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("08160625");
glutKeyboardFunc(keyboard);
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutTimerFunc(0,timer,0);
glutDisplayFunc(display);
glutMainLoop();
}



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