3D數(shù)學(xué)throwball實(shí)驗(yàn)報(bào)告

圖形與游戲軟件開發(fā)的3D數(shù)學(xué)實(shí)驗(yàn)報(bào)告實(shí)驗(yàn)名稱：通過碰撞檢測(cè)實(shí)現(xiàn)小球彈跳（學(xué)生姓名：孫蕾實(shí)驗(yàn)教室：203機(jī)房實(shí)驗(yàn)日期：2012年12一、實(shí)驗(yàn)?zāi)康?.深入理解球與平面碰撞的檢測(cè)方法。2.利用opengl環(huán)境實(shí)現(xiàn)小球的彈跳。二、實(shí)驗(yàn)內(nèi)容分析小球在水平和豎直方向上的運(yùn)動(dòng)，利用小球與水平直線的碰撞檢測(cè)實(shí)現(xiàn)小球在水平和豎直方向的運(yùn)動(dòng)。三、試驗(yàn)設(shè)備及軟件工具1.計(jì)算機(jī)windowsXP系統(tǒng)。2.microsoftvitualsdtudio配置opengl環(huán)境。四、實(shí)驗(yàn)代碼#include<GL/glut.h>#include<GL/glu.h>#include<GL/gl.h>#include<math.h>#include<stdlib.h>#defineggg-3.5#defineww4.0floatsphereradius=0.4;//球的半徑floatposition[3]={-3.5,3.5,0.0};//求的當(dāng)前位置坐標(biāo)floatground[4][3]={{-ww,ggg,ww},{ww,ggg,ww},{ww,ggg,-ww},{-ww,ggg,-ww}};//地面floatground2[4][3]={{-ww,ggg-sphereradius,ww},{ww,ggg-sphereradius,ww},{ww,ggg-sphereradius,-ww},{-ww,ggg-sphereradius,-ww}};//地面constfloatg=-0.000098;//重力加速度floatv0[3]={0.0039,0.0,0.0};//球的前一速度constfloatresistance[3]={0.000001,0.000025,0.0};//空氣阻力boolflag=false;//球是否運(yùn)動(dòng)boolcrash(){ if(position[1]<=ggg) returntrue; returnfalse;}voidiSphereRun(){ floatv[3];//球的當(dāng)前速度 v[0]=v0[0],v[1]=v0[1]+g,v[2]=0.0; if(v[0]>0.0) v[0]-=resistance[0]; if(v[1]<0)//求向下運(yùn)動(dòng)，阻力向上 v[1]+=resistance[1]; else//求向上運(yùn)動(dòng)，阻力向下 v[1]-=resistance[1]; position[0]+=v[0],position[1]+=v[1]; if(crash())//球與地面碰撞，豎直方向的速度反向 v[1]=-v[1]; v0[0]=v[0],v0[1]=v[1];}voiddisplay(void){ glClear(GL_COLOR_BUFFER_BIT); glEnable(GL_POINT_SMOOTH); glColor3f(0.0,0.0,1.0); glPointSize(12); glPushMatrix(); glTranslated(position[0],position[1],position[2]); glutWireSphere(sphereradius,20,20); glPopMatrix(); if(flag) iSphereRun(); glColor3f(1.0,1.0,1.0); glBegin(GL_LINES); glVertex3fv(ground[0]); glVertex3fv(ground[1]);glEnd(); glColor3f(1.0,0.0,0.0); glBegin(GL_LINES); glVertex3fv(ground2[0]); glVertex3fv(ground2[1]);glEnd(); glutPostRedisplay(); glutSwapBuffers();}voidreshape(intw,inth){ glMatrixMode(GL_MODELVIEW); glLoadIdentity(); glViewport(0,0,w,h); glMatrixMode(GL_PROJECTION); glLoadIdentity(); glOrtho(-4.0,4.0,-4.0,4.0,-4.0,4.0);// gluPerspective(45.0,(GLfloat)w/(GLfloat)h,-4.0,100.0);}voidinit(){ glClearColor(1.0f,1.0f,1.0f,1.0f); glEnable(GLUT_DEPTH);}voidmouse(intbutton,intstate,inti,intj){ if(button==GLUT_LEFT_BUTTON&&state==GLUT_LEFT) if(flag) flag=false; else flag=true;}intmain(intargc,char**argv){ glutInit(&argc,argv); glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGB|GLUT_DEPTH); glutInitWindowSize(800,700); glutInitWindowPosition(0,0); glutCreateWindow("throw"); glutDisplayFunc(display); glutReshapeFunc(reshape); glutMouseFunc(mouse); init(); glutMainLoop(); return0;}五、實(shí)驗(yàn)結(jié)果截