C语言游戏模型（飞机）编程实现

1、 C语言游戏模型（飞机）编程实现 用C语言编写一个有关飞机的小游戏，首先要解决游戏中主要元素：飞机模型的屏幕绘图。是绘二维平面图还是绘三维立体图？下面用三维立体图绘制它，如下图所示： 图1、飞机模型图 图2、飞机模型图上面两幅图是在VC6中用OpenGL函数绘制的屏幕三维飞机模型，它的表面数据用双二次Nurbs曲面生成。、光（光照）在屏幕上绘制的三维图形，要用光照亮它同而产生明暗变化，才能使绘制的图形更能真实地再现要生成的物体。在OpenGL函数里有专门用于光照的函数，只要调用它们就能还原一个真实的模似三维世界。二、Nurbs曲面 生成曲面的一种算法，这里主要用的是双二次曲面。程序中飞机机身的

2、设计基本上是一个圆柱体。用7个顶点表示的一个正方形利用NURBS二次圆弧构成一个整圆，描绘圆柱体的外形数据。下面是一个双二次NURBS曲面和曲线的算法源程序：#include glgl.h#include math.h/*-*-*-*-*-*-*-*-*-*-*-*-*-*-* B样条基函数计算部分*-*-*-*-*-*-*-*-*-*-*-*-*-*/计算所有非零B样条基函数并返回其值/i为参数u所在的节点区间下标void BasisFunction(int i,int p,float u,float U,float N) int j,di,dp,k;float tul,tur,left,r

3、ight;float tmpN5050;for(k=0;k=i-k;di-)if(u=Udi&uUdi+1)tmpNdi0=1; else tmpNdi0=0; dp+=1; for(j=1;jdp;j+) tul=Udi+j-Udi; tur=Udi+j+1-Udi+1; if(tul!=0) left=(u-Udi)/tul; else left=0; if(tur!=0) right=(Udi+j+1-u)/tur; else right=0; tmpNdij=left*tmpNdij-1+right*tmpNdi+1j-1; Ni-k=tmpNi-kp; /*-*-*-*-*-*-*-

4、*-*-*-*-*-*-* Bezier曲线曲面部分*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*void BernsteinFunc(int n,double u,float B) double u1; int j,k; B0=1.0; u1=1.0-u; for(j=1;j=n;j+) float saved=0.0; for(k=0;kj;k+) float temp=Bk; Bk=float(saved+u1*temp); saved=float(u*temp); Bj=saved; /获取p次Bezier曲线上的lines个点的值void BezierPoint(

5、int p,float px,float py,float pz,int lines,float tmp3)float BC20;int i,j; for(j=0;j=lines;j+) double t=j/(float)lines; BernsteinFunc(p,t,BC); tmpj0=tmpj1=tmpj2=0; for(i=0;ip+1;i+)tmpj0+=BCi*pxi; tmpj1+=BCi*pyi; tmpj2+=BCi*pzi;/获取p次有理Bezier曲线上的lines个点的值void NBezierPoint(int p,float px,float py,float

6、pz,float pw,int lines,float tmp4)float x,y,z,w,BC20;int i,j; for(j=0;j=lines;j+) double t=j/(float)lines; BernsteinFunc(p,t,BC); x=y=z=w=0; for(i=0;ip+1;i+)x+=BCi*pxi*pwi; y+=BCi*pyi*pwi; z+=BCi*pzi*pwi; w+=BCi*pwi; tmpj0=x/w; tmpj1=y/w; tmpj2=z/w; tmpj3=w;/-/绘制p次的Bezier曲线void Bezier(int p,float px,

7、float py,float pz,int lines)float pt1003;int j; BezierPoint(p,px,py,pz,lines,pt);for(j=1;j=lines;j+) glBegin(GL_LINES); glVertex3f(ptj-10,ptj-11,ptj-12); glVertex3f(ptj0,ptj1,ptj2); glEnd();/-/绘制p次的有理Bezier曲线void NBezier(int p,float px,float py,float pz,float w,int lines)float pt1004;int j; NBezierP

8、oint(p,px,py,pz,w,lines,pt);for(j=1;j=lines;j+) glBegin(GL_LINES); glVertex3f(ptj-10,ptj-11,ptj-12); glVertex3f(ptj0,ptj1,ptj2); glEnd();/-/计算双p次Bezier曲面上所有的点并保存在Pt中/u和v分别为曲面(u,v)方向上的网格数void BezierFacePoint(int p,int u,int v,float px4,float py4,float pz4,float pt1611613)float urx11161,ury11161,urz11

9、161;float tx11,ty11,tz11,tmp1613;int i,j,k; for(j=0;jp+1;j+)for(i=0;ip+1;i+)txi=pxij; tyi=pyij; tzi=pzij; BezierPoint(p,tx,ty,tz,v,tmp); for(k=0;k=v;k+) urxjk=tmpk0; uryjk=tmpk1; urzjk=tmpk2; for(i=0;i=v;i+)for(k=0;kp+1;k+) txk=urxki; tyk=uryki; tzk=urzki; BezierPoint(p,tx,ty,tz,u,tmp); for(j=0;j=u;

10、j+) ptij0=tmpj0; ptij1=tmpj1; ptij2=tmpj2;/-/计算双p次有理Bezier曲面上所有的点并保存在Pt中/u和v分别为曲面(u,v)方向上的网格数void NuBezierFacePoint(int p,int u,int v,float px4,float py4,float pz4,float w4,float pt1611613)float urx11161,ury11161,urz11161,urw11161;float tx11,ty11,tz11,tw11,tmp1614;int i,j,k; for(j=0;jp+1;j+)for(i=0;

11、ip+1;i+) txi=pxij; tyi=pyij; tzi=pzij; twi=wij; NBezierPoint(p,tx,ty,tz,tw,v,tmp); for(k=0;k=v;k+) urxjk=tmpk0; uryjk=tmpk1; urzjk=tmpk2; urwjk=tmpk3; for(i=0;i=v;i+)for(k=0;kp+1;k+)txk=urxki; tyk=uryki; tzk=urzki; twk=urwki; NBezierPoint(p,tx,ty,tz,tw,u,tmp); for(j=0;j=u;j+) ptij0=tmpj0; ptij1=tmpj

12、1; ptij2=tmpj2;/-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* B样条曲线曲面部分-*-*-*-*-*-*-*-*-*-*-*-*-*-*-/计算曲线上的点（u所对应的所有点）保存在Poi中/n=m-p-1/p为曲线的次数void BSplinePoint(int n,int p,float U,float P,float Poi)float N100,tmp; int i,j; for(i=p+1;i=i-p;j-)tmp+=Nj*Pj;Poii-p=tmp;/计算次样条曲线上的所有控制多边形保存在CP中/m为节点矢量U的最大下标void B2SplineC

13、ontrolPoint(int m,float U,float P,float CP)int n,k,tm,i,cp,p;float Poi100;p=2;n=m-p-1;BSplinePoint(n,p,U,P,Poi);cp=(n-p)*2+p;for(i=0;i2;i+)CPi=Pi;CPcp=Pn;tm=2;for(i=2;icp-1;i+=2) k=(int)i/2;CPi=Poik;CPi+1=Ptm;tm+;/绘制次B样条曲线/m为节点矢量U的最大下标void BSpline2L(int m,float U,float px,float py,float pz)float pcx

14、100,pcy100,pcz100,drx3,dry3,drz3;int i,j,tmcp;B2SplineControlPoint(m,U,px,pcx);B2SplineControlPoint(m,U,py,pcy);B2SplineControlPoint(m,U,pz,pcz);tmcp=m-5;for(i=0;i=tmcp;i+)for(j=i*2;ji*2+3;j+)drxj-i*2=pcxj;dryj-i*2=pcyj;drzj-i*2=pczj;Bezier(2,drx,dry,drz,20);/计算双二次（x2）B样条曲面所有控制多边形顶点，并保存在pt中/mu,mv分别为

15、节点矢量U,V的最大下标值void BS2FaceControlPoint(int mu,float U,int mv,float V,float px,float py,float pz,float pt1001003)int i,j,k,dp;float tmx50,tmy50,tmz50;float tmpx50100,tmpy50100,tmpz50100;float uvx100100,uvy100100,uvz100100;for(i=0;imv-2;i+)dp=i*(mu-2);for(j=dp;jmu-2+dp;j+)tmxj-dp=pxj;tmyj-dp=pyj;tmzj-d

16、p=pzj;B2SplineControlPoint(mu,U,tmx,tmpxi);B2SplineControlPoint(mu,U,tmy,tmpyi);B2SplineControlPoint(mu,U,tmz,tmpzi);for(i=0;i2*mu-7;i+)for(j=0;jmv-2;j+)tmxj=tmpxji;tmyj=tmpyji;tmzj=tmpzji;B2SplineControlPoint(mv,V,tmx,uvxi);B2SplineControlPoint(mv,V,tmy,uvyi);B2SplineControlPoint(mv,V,tmz,uvzi);for

17、(k=0;k2*mv-7;k+)ptik0=uvxik;ptik1=uvyik;ptik2=uvzik;/-/设置网格数void SetGridCount(int dt,int tu,int tmk)int i,tm;tm=tu%dt;for(i=0;idt-1;i+) tmki=(tu-tm)/dt;tmkdt-1=tmk0+tm;/-/计算双二次(2x2次)B样条曲面上所有的点并保存在bs中/nu,mv分别为节点矢量U,V的最大下标/uk,vk分别为B样条曲面(u,v)方向上的网格数/p为曲面的次数void BSplineFace2P(int nu,float U,int uk,int m

18、v,float V,int vk, float px,float py,float pz,float bs1611613)int udk20,vdk20,i,j,k,l,hu,sv,du,dv,p=2;float tp1001003,td1611613;float tmx44,tmy44,tmz44;du=nu-2*p;dv=mv-2*p; SetGridCount(du,uk,udk); SetGridCount(dv,vk,vdk); BS2FaceControlPoint(nu,U,mv,V,px,py,pz,tp);for(i=0;idv;i+)for(k=0;kdu;k+)for(j

19、=i*p;jp+1+i*p;j+)for(l=k*p;lp+1+k*p;l+)tmxj-i*pl-k*p=tplj0; tmyj-i*pl-k*p=tplj1; tmzj-i*pl-k*p=tplj2; BezierFacePoint(p,udkk,vdki,tmx,tmy,tmz,td); for(sv=i*vdk0;sv=vdki+i*vdk0;sv+)for(hu=k*udk0;hu=udkk+k*udk0;hu+)bssvhu0=tdsv-i*vdk0hu-k*udk00; bssvhu1=tdsv-i*vdk0hu-k*udk01; bssvhu2=tdsv-i*vdk0hu-k*u

20、dk02;/-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* Nurbs 样条曲线曲面部分-*-*-*-*-*-*-*-*-*-*-*-*-*-*-/计算Nurbs曲线上的点（u所对应的所有点）保存在Poi中/n=m-p-1/p为曲线的次数void NurbsPoint(int n,int p,float U,float P,float W,float Poi)float N100,tmp,tmw; int i,j; for(i=p+1;i=i-p;j-)tmp+=Nj*Pj*Wj;tmw+=Nj*Wj;Poii-p=tmp/tmw;/计算次Nurbs曲线上的所有控制多边形保存

21、在CP中/m为节点矢量U的最大下标void Nurbs2ControlPoint(int m,float U,float P,float W,float CP)int n,k,tm,i,cp,p;float Poi100;p=2;n=m-p-1;NurbsPoint(n,p,U,P,W,Poi);cp=(n-p)*2+p;for(i=0;i2;i+)CPi=Pi;CPcp=Pn;tm=2;for(i=2;icp-1;i+=2) k=(int)i/2;CPi=Poik;CPi+1=Ptm;tm+;/绘制次Nurbs样条曲线/m为节点矢量U的最大下标void Nurbs2L(int m,float

22、 U,float px,float py,float pz,float W)float pcx100,pcy100,pcz100,drx3,dry3,drz3;float pcw100,drw3;int i,j,tmcp;Nurbs2ControlPoint(m,U,px,W,pcx);Nurbs2ControlPoint(m,U,py,W,pcy);Nurbs2ControlPoint(m,U,pz,W,pcz);B2SplineControlPoint(m,U,W,pcw);tmcp=m-5;for(i=0;i=tmcp;i+)for(j=i*2;ji*2+3;j+)drxj-i*2=pc

23、xj;dryj-i*2=pcyj;drzj-i*2=pczj;drwj-i*2=pcwj;NBezier(2,drx,dry,drz,drw,20);/计算双二次（x2）Nurbs样条曲面所有控制多边形顶点，并保存在pt中/mu,mv分别为节点矢量U,V的最大下标值void Nurbs2FControlPoint(int mu,float U,int mv,float V,float px,float py,float pz,float W,float pt1001004)int i,j,k,dp;float tmx50,tmy50,tmz50,tmw50;float tmpx50100,tm

24、py50100,tmpz50100,tmpw50100;float uvx100100,uvy100100,uvz100100,uvw100100;for(i=0;imv-2;i+)dp=i*(mu-2);for(j=dp;jmu-2+dp;j+)tmxj-dp=pxj;tmyj-dp=pyj;tmzj-dp=pzj;tmwj-dp=Wj;Nurbs2ControlPoint(mu,U,tmx,tmw,tmpxi);Nurbs2ControlPoint(mu,U,tmy,tmw,tmpyi);Nurbs2ControlPoint(mu,U,tmz,tmw,tmpzi);B2SplineCont

25、rolPoint(mu,U,tmw,tmpwi);for(i=0;i2*mu-7;i+)for(j=0;jmv-2;j+)tmxj=tmpxji;tmyj=tmpyji;tmzj=tmpzji;tmwj=tmpwji;Nurbs2ControlPoint(mv,V,tmx,tmw,uvxi);Nurbs2ControlPoint(mv,V,tmy,tmw,uvyi);Nurbs2ControlPoint(mv,V,tmz,tmw,uvzi);B2SplineControlPoint(mv,V,tmw,uvwi);for(k=0;k2*mv-7;k+)ptik0=uvxik;ptik1=uvyi

26、k;ptik2=uvzik;ptik3=uvwik;/-/计算双二次(2x2次)Nurbs样条曲面上所有的点并保存在bs中/nu,mv分别为节点矢量U,V的最大下标/uk,vk分别为B样条曲面(u,v)方向上的网格数/p为曲面的次数void NurbsFace(int nu,float U,int uk,int mv,float V,int vk, float px,float py,float pz,float w,float bs1611613)int udk20,vdk20,i,j,k,l,hu,sv,du,dv,p=2;float tp1001004,td1611613;float t

27、mx44,tmy44,tmz44,tmw44;du=nu-2*p;dv=mv-2*p; SetGridCount(du,uk,udk); SetGridCount(dv,vk,vdk); Nurbs2FControlPoint(nu,U,mv,V,px,py,pz,w,tp);for(i=0;idv;i+)for(k=0;kdu;k+)for(j=i*p;jp+1+i*p;j+)for(l=k*p;lp+1+k*p;l+)tmxj-i*pl-k*p=tplj0; tmyj-i*pl-k*p=tplj1; tmzj-i*pl-k*p=tplj2; tmwj-i*pl-k*p=tplj3; NuB

28、ezierFacePoint(p,udkk,vdki,tmx,tmy,tmz,tmw,td); for(sv=i*vdk0;sv=vdki+i*vdk0;sv+) for(hu=k*udk0;hu=udkk+k*udk0;hu+) bssvhu0=tdsv-i*vdk0hu-k*udk00; bssvhu1=tdsv-i*vdk0hu-k*udk01; bssvhu2=tdsv-i*vdk0hu-k*udk02;/*-*-*-*-*-*-*-*-*-*-*-*-*-*-* 绘制曲面部分*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/计算多边形的外法线返回值tmNvo

29、id getN(float x3,float y3,float z3,float tmN3)float p1,p2,p3,q1,q2,q3;p1=x1-x0;p2=y1-y0;p3=z1-z0;q1=x2-x1;q2=y2-y1;q3=z2-z1;tmN0=p2*q3-q2*p3;tmN1=q1*p3-p1*q3;tmN2=p1*q2-p2*q1;/-/显示B样条曲面/fill取值为或void ShowSurface(int u,int v,float bs1611613,int fill)int i,j;float x3,y3,z3,tmn3;for(i=0;i=v;i+)for(j=0;j

30、=u;j+) if(fill!=0)x0=bsij0; x1=bsi+1j0; x2=bsi+1j+10; y0=bsij1; y1=bsi+1j1; y2=bsi+1j+11; z0=bsij2; z1=bsi+1j2; z2=bsi+1j+12; getN(x,y,z,tmn); glEnable(GL_NORMALIZE); glBegin(GL_QUADS); glNormal3f(tmn0,tmn1,tmn2);glBegin(GL_LINES); if(ju) glVertex3f(bsij0,bsij1,bsij2); glVertex3f(bsij+10,bsij+11,bsi

31、j+12); if(iv) glVertex3f(bsi+1j+10,bsi+1j+11,bsi+1j+12); glVertex3f(bsi+1j0,bsi+1j1,bsi+1j2); glEnd(); glDisable(GL_NORMALIZE);else glBegin(GL_LINES); if(ju) glVertex3f(bsij0,bsij1,bsij2); glVertex3f(bsij+10,bsij+11,bsij+12); if(iv) glVertex3f(bsij0,bsij1,bsij2); glVertex3f(bsi+1j0,bsi+1j1,bsi+1j2);

32、 glEnd(); 三、飞机小游戏编写 图3、游戏效果图战机小游戏简单编写了：主战机的上、下、左、右移动和开炮射击（按空格键）；音乐的播放（.wav）。编写了物体碰撞算法：击落敌机、主战机和敌机的碰撞。#include stdafx.h#include Nurbs_2pNurbs.hHWND hwnd;HDC hdc;HGLRC hrc;int mWidth=480;int mHeight=600;char *mWindowClassName=makewindowclass;char *mWindowName=战机;int mKeystate;typedef struct GAMEDATAfl

33、oat x,y;int f_s;FeiJi,ZiDan;FeiJi M_FJ,DIJ_bf50;ZiDan GZD_bf100;int dj_state;int dzindex;unsigned int trx;/飞机机身头部数据float hx=-360,-360,-360,-360,-360,-360,-360, -360,-360,-360,-360,-360,-360,-360, -250,-250,-250,-250,-250,-250,-250, -200,-200,-200,-200,-200,-200,-200, -100,-100,-100,-100,-100,-100,-1

34、00, -50,-50,-50,-50,-50,-50,-50, 0,0,0,0,0,0,0; float hy=0,0,0,0,0,0,0, 0,20,20,0,-20,-20,0, 0,50,50,0,-50,-50,0, 0,60,60,0,-60,-60,0, 0,110,110,0,-60,-60,0, 0,110,110,0,-60,-60,0, 0,100,100,0,-60,-60,0; float hz=0,0,0,0,0,0,0, -20,-20,20,20,20,-20,-20, -50,-50,50,50,50,-50,-50, -60,-60,60,60,60,-60

35、,-60, -60,-60,60,60,60,-60,-60, -60,-60,60,60,60,-60,-60, -60,-60,60,60,60,-60,-60; float HU=0,0,0,0.25,0.5,0.5,0.75,1,1,1; /飞机机身尾部数据float lx=0,0,0,0,0,0,0, 150,150,150,150,150,150,150, 200,200,200,200,200,200,200, 250,250,250,250,250,250,250, 300,300,300,300,300,300,300, 350,350,350,350,350,350,350

36、, 400,400,400,400,400,400,400; float ly=0,100,100,0,-60,-60,0, 0,80,80,0,-60,-60,0, 0,80,80,0,-60,-60,0, 0,70,70,0,-60,-60,0, 0,60,60,0,-60,-60,0, 0,60,60,0,-60,-60,0, 0,40,40,0,-40,-40,0; float lz=-60,-60,60,60,60,-60,-60, -60,-60,60,60,60,-60,-60, -60,-60,60,60,60,-60,-60, -60,-60,60,60,60,-60,-60

37、, -60,-60,60,60,60,-60,-60, -60,-60,60,60,60,-60,-60, -40,-40,40,40,40,-40,-40; float LU=0,0,0,0.25,0.5,0.5,0.75,1,1,1; float w=1,0.5,0.5,1,0.5,0.5,1, 1,0.5,0.5,1,0.5,0.5,1, 1,0.5,0.5,1,0.5,0.5,1, 1,0.5,0.5,1,0.5,0.5,1,1,0.5,0.5,1,0.5,0.5,1,1,0.5,0.5,1,0.5,0.5,1,1,0.5,0.5,1,0.5,0.5,1;/前机翼数据float rx=

38、25,-50,-50,100,100,25, 40,-30,-30,110,110,40, 55,-10,-10,120,120,55, 60,10,10,120,120,60, 80,30,30,130,130,80, 95,95,95,95,95,95; float ry=10,10,-10,-10,10,10, 10,10,-10,-10,10,10, 10,10,-10,-10,10,10, 10,10,-10,-10,10,10, 10,10,-10,-10,10,10, 0,0,0,0,0,0; float rz=60,60,60,60,60,60, 120,120,120,120

39、,120,120, 180,180,180,180,180,180, 240,240,240,240,240,240, 310,310,310,310,310,310, 310,310,310,310,310,310; float rx1=25,100,100,-50,-50,25, 40,110,110,-30,-30,40, 55,120,120,-10,-10,55, 60,120,120,10,10,60, 80,130,130,30,30,80, 95,95,95,95,95,95; float rz1=-60,-60,-60,-60,-60,-60, -120,-120,-120,

40、-120,-120,-120, -180,-180,-180,-180,-180,-180, -240,-240,-240,-240,-240,-240, -310,-310,-310,-310,-310,-310, -310,-310,-310,-310,-310,-310; float RU=0,0,0,0.25,0.50,0.75,1,1,1; /后机翼数据float ex=275,200,200,350,350,275, 290,220,220,360,360,290, 305,240,240,370,370,305, 320,260,260,380,380,320, 335,280,

41、280,390,390,335, 350,350,350,350,350,350;float ey=10,10,-10,-10,10,10, 10,10,-10,-10,10,10, 10,10,-10,-10,10,10, 10,10,-10,-10,10,10, 10,10,-10,-10,10,10, 0,0,0,0,0,0; float ez=60,60,60,50,50,60, 90,90,90,90,90,90, 120,120,120,120,120,120, 150,150,150,150,150,150, 180,180,180,180,180,180, 190,190,19

42、0,190,190,190; float ex1=275,350,350,200,200,275, 290,360,360,220,220,290, 305,370,370,240,240,305, 320,380,380,260,260,320, 335,390,390,280,280,335, 350,350,350,350,350,350;float ez1=-60,-50,-50,-60,-60,-60, -90,-90,-90,-90,-90,-90, -120,-120,-120,-120,-120,-120, -150,-150,-150,-150,-150,-150, -180

43、,-180,-180,-180,-180,-180, -190,-190,-190,-190,-190,-190;float EU=0,0,0,0.25,0.50,0.75,1,1,1; /后上机翼数据float tx=265,120,120,350,350,265, 280,150,150,360,360,280, 295,180,180,370,370,295, 310,210,210,380,380,310, 325,240,240,390,390,325, 340,340,340,340,340,340; float ty=60,60,60,50,50,60, 85,85,85,85,

44、85,85, 110,110,110,110,110,110, 135,135,135,135,135,135, 160,160,160,160,160,160, 170,170,170,170,170,170; float tz=-10,-10,10,10,-10,-10, -10,-10,10,10,-10,-10, -10,-10,10,10,-10,-10, -10,-10,10,10,-10,-10, -10,-10,10,10,-10,-10, 0,0,0,0,0,0; float TU=0,0,0,0.25,0.50,0.75,1,1,1; float bst1611613; f

45、loat bst11611613; float bst21611613; float bst31611613; float bst41611613; float bst51611613; float bst61611613; LRESULT WINAPI WndProc(HWND,UINT,WPARAM,LPARAM);BOOL setpixelformat(HDC hdc);void initviewport(int width,int height);void drawscreen();void messageloop();void lightm()GLfloat lamb4=0.5f,0

46、.5f,0.5f,1.0f;GLfloat ldif4=0.35f,0.35f,0.35f,1.0f;GLfloat lspe4=0.55f,0.55f,0.55f,1.0f;GLfloat lpos4=350.0f,500.0f,1000.0f,1.0f;GLfloat mamb4=0.3f,0.3f,0.3f,1.0f;GLfloat mdif4=0.3f,0.3f,0.3f,1.0f;GLfloat mspe4=0.75f,0.75f,0.75f,1.0f;GLfloat memi4=0.0f,0.0f,0.0f,1.0f;GLfloat mshininess=128.0f;glLigh

47、tfv(GL_LIGHT1,GL_AMBIENT,lamb);glLightfv(GL_LIGHT1,GL_DIFFUSE,ldif);glLightfv(GL_LIGHT1,GL_SPECULAR,lspe);glLightfv(GL_LIGHT1,GL_POSITION,lpos);glMaterialfv(GL_FRONT_AND_BACK,GL_AMBIENT,mamb);glMaterialfv(GL_FRONT_AND_BACK,GL_DIFFUSE,mdif);glMaterialfv(GL_FRONT_AND_BACK,GL_SPECULAR,mspe);glMaterialf

48、v(GL_FRONT_AND_BACK,GL_EMISSION,memi);glMaterialf(GL_FRONT_AND_BACK,GL_SHININESS,mshininess);int presskey(int vk)if(mKeystate=vk)return 1;return 0;void circle(float x,float y,float r)int i;float p;glBegin(GL_TRIANGLE_FAN);for(i=0;i370;i+=10)p=(float)(i*3.1415926)/180;glVertex3f(float)cos(p)*r+x,(flo

49、at)sin(p)*r+y,0.0f);glEnd();void drawsolidsphere(float x,float y,float r)glPushMatrix();glTranslatef(x,y,-100);glRotatef(-30,1.0,0.0,0.0); glRotatef(90,0.0,1.0,0.0); auxSolidSphere(r);glPopMatrix();unsigned int gettexture24b(char *bitn)FILE *fp;fp=fopen(bitn,rb);if(fp=NULL) return 0;int w,h,i,k;fsee

50、k(fp,18,SEEK_SET);fread(&w,4,1,fp);fread(&h,4,1,fp);unsigned char *t,ti;k=(w)*3;while(k%4) k+;t=new unsigned char k*h;fseek(fp,54,SEEK_SET);fread(t,k*h,1,fp);fclose(fp);for(i=0;ik*h;i+=3)ti=ti;ti=ti+2;ti+2=ti;unsigned int tr;glGenTextures(1,&tr);glBindTexture(GL_TEXTURE_2D,tr);gluBuild2DMipmaps(GL_T

51、EXTURE_2D,4,w,h,GL_RGB,GL_UNSIGNED_BYTE,t);delete t;return tr;int WINAPI WinMain(HINSTANCE hinstance,HINSTANCE lprevinstance,LPSTR lpcmdline,int nshowcmd)WNDCLASS wc;int sx,sy,wx,he,mk,k;wc.cbClsExtra=0;wc.cbWndExtra=0;wc.hbrBackground=(HBRUSH)(COLOR_WINDOW+1);wc.hCursor=LoadCursor(NULL,IDC_ARROW);w

52、c.hIcon=LoadIcon(NULL,IDI_WINLOGO);wc.hInstance=hinstance;wc.lpfnWndProc=(WNDPROC)WndProc;wc.lpszClassName=mWindowClassName;wc.lpszMenuName=NULL;wc.style=CS_HREDRAW|CS_VREDRAW;RegisterClass(&wc);wx=GetSystemMetrics(SM_CXSCREEN);he=GetSystemMetrics(SM_CYSCREEN);sx=(wx-mWidth)/2;sy=(he-mHeight)/2;hwnd

53、=CreateWindow(mWindowClassName,mWindowName,WS_OVERLAPPEDWINDOW,sx,sy,mWidth,mHeight,HWND_DESKTOP,NULL,hinstance,NULL);ShowWindow(hwnd,nshowcmd);UpdateWindow(hwnd);lightm(); glEnable(GL_DEPTH_TEST); glEnable(GL_LIGHTING); glLightModelf(GL_LIGHT_MODEL_LOCAL_VIEWER,1.0); glEnable(GL_LIGHT1); glEnable(G

54、L_COLOR_MATERIAL); mk=20;k=12;NurbsFace(9,HU,mk,9,HU,mk,hx,hy,hz,w,bst); NurbsFace(9,LU,mk,9,LU,mk,lx,ly,lz,w,bst1); BSplineFace2P(8,RU,k,8,RU,k,rx,ry,rz,bst2); BSplineFace2P(8,RU,k,8,RU,k,rx1,ry,rz1,bst3); BSplineFace2P(8,EU,k,8,EU,k,ex,ey,ez,bst4); BSplineFace2P(8,EU,k,8,EU,k,ex1,ey,ez1,bst5); BSp

55、lineFace2P(8,TU,k,8,TU,k,tx,ty,tz,bst6); M_FJ.x=float(mWidth/2);M_FJ.y=60;M_FJ.f_s=1;dzindex=-1;trx=gettexture24b(bkm.bmp);messageloop();return 0;LRESULT WINAPI WndProc(HWND hwnd,UINT message,WPARAM wparam,LPARAM lparam)switch(message)case WM_CREATE: hdc=GetDC(hwnd);setpixelformat(hdc);break;case WM

56、_SIZE:mWidth=LOWORD(lparam);mHeight=HIWORD(lparam);if(mHeight=0)mHeight=1;initviewport(mWidth,mHeight);break;case WM_DESTROY:PostQuitMessage(0);break;case WM_KEYDOWN:mKeystate=wparam;break;case WM_KEYUP:mKeystate=0;break;return DefWindowProc(hwnd,message,wparam,lparam);BOOL setpixelformat(HDC hdc)PI

57、XELFORMATDESCRIPTOR pdf=sizeof(PIXELFORMATDESCRIPTOR),1,PFD_DRAW_TO_WINDOW|PFD_SUPPORT_OPENGL|PFD_DOUBLEBUFFER,PFD_TYPE_RGBA,32,0,0,0,0,0,0,0,0,0,0,0,0,0,32,0,0,PFD_MAIN_PLANE,0,0,0,0;int pix=ChoosePixelFormat(hdc,&pdf);if(pix=0)return FALSE;SetPixelFormat(hdc,pix,&pdf);hrc=wglCreateContext(hdc);wgl

58、MakeCurrent(hdc,hrc);return TRUE;void initviewport(int width,int height)glViewport(0,0,width,height);glMatrixMode(GL_PROJECTION);glLoadIdentity();glOrtho(0,width,0,height,1000,-1000);glMatrixMode(GL_MODELVIEW);glLoadIdentity();void puttexture(int x,int y,int width,int height,unsigned int tr)glPushMa

59、trix();glEnable(GL_TEXTURE_2D);glBindTexture(GL_TEXTURE_2D,tr);glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_CLAMP);glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_CLAMP);glColor3f(1.0f,1.0f,1.0f);glBegin(GL_QUADS);glTexCoord2i(0,0); glVertex2i(x,y);glTexCoord2i(1,0); glVertex2i(x+width,y);g

60、lTexCoord2i(1,1); glVertex2i(x+width,y+height);glTexCoord2i(0,1); glVertex2i(x,y+height);glEnd();glDisable(GL_TEXTURE_2D);glPopMatrix();void getdz(float x,float y)if(dzindex100)dzindex+;GZD_bfdzindex.x=x;GZD_bfdzindex.y=y;GZD_bfdzindex.f_s=1;elsedzindex=-1;void dispdz()int i;for(i=0;imHeight)GZD_bfi