基于openGL开发的射击小游戏

#include <windows.h> #include <math.h> #include <gl\gl.h> #include "Class.h" #include "fmod.h" #include "texture.h" //各变量定义: extern TextureTga playertex[3]; // 纹理数组，保存纹理名字 extern TextureTga computertex[3]; extern TextureTga ammunitiontex[4]; extern TextureTga awardtex[3]; extern TextureTga othertex[4]; extern PlayerPlane myPlane; // 我方飞机 extern ComputerPlane computers[MAX_COMPUTER]; // 电脑飞机数组 extern Ammunition ammunitions[MAX_AMMUNITION]; // 子弹数组 extern Award awards[MAX_AWARD]; // 物品数组 int ammunitionIndex=0; int awardIndex=0; extern FSOUND_SAMPLE *sound_1; // 发射子弹的声音指针 extern FSOUND_SAMPLE *sound_2; // 射击中的声音指针 extern FSOUND_SAMPLE *sound_3; // 遇到物品的声音指针 extern FSOUND_SAMPLE *sound_4; // 游戏的背影音乐指针 extern int myPlaneNum; // 我方目前余下的飞机数目 extern bool end; // 控制游戏结束的布尔值 extern DWORD endtime; // 结束动画的起始时间 extern int timer; // 这一帧的运行时间 // 计算点(x1,y1)与点(x2,y2)的距离 float distance(float x1,float y1,float x2,float y2) { return (float)sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2)); } // 玩家飞机类定义 // 玩家飞机初始化 void PlayerPlane::initPlane(float a,float b,int l,float s) { x=a; y=b; life=l; speed=s; blastNum=0; blastTime=0; bombNum=START_BOMB_NUMBER; planeTexture=0; fireTime=0; ammunitionKind=0; score=0; } PlayerPlane::PlayerPlane(float a,float b,int l,float s) { initPlane(a,b,l,s); } // 更新飞机 void PlayerPlane::update() { if (life<=0&&blastNum==8){ // 玩家飞机爆炸完毕 myPlaneNum--; if (myPlaneNum!=0){ // 玩家还有剩余飞机 int temp=score; initPlane(0,-230,100,2); score=temp; }else{ // 游戏结束(失败) endtime=GetTickCount(); end=true; } }else if(score>=WIN_SCORE){ // 游戏结束(胜利) endtime=GetTickCount(); end=true; } } // 发射子弹 void PlayerPlane::fire() { if(life>0){ fireTime+=timer; if(fireTime>100){ Ammunition t1(x-12,y+1,90,4,100.0f,ammunitionKind); Ammunition t2(x+12,y+1,90,4,100.0f,ammunitionKind); t1.setOwner(1); t2.setOwner(1); ammunitions[ammunitionIndex++]=t1; if(ammunitionIndex==MAX_AMMUNITION) ammunitionIndex=0; ammunitions[ammunitionIndex++]=t2; if(ammunitionIndex==MAX_AMMUNITION) ammunitionIndex=0; fireTime-=100; } } } // 发射炸弹 void PlayerPlane::fireBomb() { if(life>0 && bombNum>0){ Ammunition t1(x,y+30,90,4,100.0f,3); t1.setOwner(1); ammunitions[ammunitionIndex++]=t1; if(ammunitionIndex==MAX_AMMUNITION) ammunitionIndex=0; bombNum--; } } // 检测并绘制飞机爆炸 void PlayerPlane::blast() { if(life<=0){ blastTime+=timer; if(blastNum<8){ // 绘制爆炸图像 glPushMatrix(); glTranslatef(x, y, 0.0f); glEnable(GL_TEXTURE_2D); glBindTexture(GL_TEXTURE_2D, othertex[2].texID); glBegin(GL_QUADS); glTexCoord2d(blastNum*0.125f,0); glVertex2f(-50.0f,-50.0f); glTexCoord2d((blastNum+1)*0.125f,0);glVertex2f( 50.0f,-50.0f); glTexCoord2d((blastNum+1)*0.125f,1);glVertex2f( 50.0f, 50.0f); glTexCoord2d(blastNum*0.125f,1); glVertex2f(-50.0f, 50.0f); glEnd(); glDisable(GL_TEXTURE_2D); glPopMatrix(); // 更新爆炸相关参数 if(blastTime>30){ if(blastNum==0) FSOUND_PlaySound(FSOUND_FREE,sound_2); blastNum++; blastTime=0; } } } } // 检测飞机是否相撞 void PlayerPlane::hitcomPlane() { if(life>0){ for(int i=0; i<MAX_COMPUTER; i++){ if(distance(x,y,computers[i].getX(),computers[i].getY())<30 && computers[i].getLife()>0){ life-=100; // 飞机相撞,生命值减少100 computers[i].setLife(0); // 对方飞机爆炸 computers[i].setExplosible(true); return ; } } } } // 飞机向上移动 void PlayerPlane::moveUp() { if(y<280 && life>0){ y+=speed*timer/20; planeTexture=0; } } // 飞机向下移动 void PlayerPlane::moveDown() { if(y>-230 && life>0){ y-=speed*timer/20; planeTexture=0; } } // 飞机向右移动 void PlayerPlane::moveRight() { if(life>0){ planeTexture=2; if(x<230.0){ x+=speed*timer/20; } } } // 飞机向左移动 void PlayerPlane::moveLeft() { if(life>0){ planeTexture=1; if(x>-230.0){ x-=speed*timer/20; } } } // 飞机原地不动 void PlayerPlane::stay() { if(life>0) planeTexture=0; } // 绘制飞机 void PlayerPlane::draw() { if(life>0){ glPushMatrix(); glTranslatef(x, y, 0.0f); glEnable(GL_TEXTURE_2D); glBindTexture(GL_TEXTURE_2D, playertex[planeTexture].texID); // 设置飞机颜色 if(life>50) glColor3f(1.0f, 1.0f, 1.0f); else glColor3f(0.7f, 0.7f, 0.7f); glBegin(GL_QUADS); glTexCoord2i(0.0f, 0.0f);glVertex2i(-20,-20); glTexCoord2i(1.0f, 0.0f);glVertex2i( 20,-20); glTexCoord2i(1.0f, 1.0f);glVertex2i( 20, 20); glTexCoord2i(0.0f, 1.0f);glVertex2i(-20, 20); glEnd(); glColor3f(1.0f, 1.0f, 1.0f); glDisable(GL_TEXTURE_2D); glPopMatrix(); } } // 电脑飞机类成员定义 ComputerPlane::ComputerPlane(float a,float b,int l,float d,float s,int k):BaseObject(a,b,l,s,d,k) { fireTime=0; } // 电脑飞机的种类分为0，1，2三种，对于不同的种类，将会有不同的生命值和子弹属性等。 void ComputerPlane::setKind(int k) { if(k==0){ kind=0; speed=2; life=150; rewardScore=100; }else if(k==1){ kind=1; speed=3; life=100; rewardScore=200; }else if(k==2){ kind=2; speed=1; life=200; rewardScore=500; } } // 电脑飞机初始化 void ComputerPlane::compinit() { x=(float)(rand()%500-250); y=(float)(rand()%100+300); direction=(float)(rand()%90-135); blastNum=0; explosible=false; // 初始化电脑飞机种类kind int temp=rand()%8; if(temp<=4) setKind(0); else if(temp==5 || temp==6) setKind(1); else if(temp==7) setKind(2); } // 更新电脑飞机 void ComputerPlane::update() { if(life<=0 && blastNum==8 && explosible || life<=0 && !explosible){ compinit(); blastNum=0; } } // 绘制电脑飞机 void ComputerPlane::draw() { if(life>0){ glPushMatrix(); glTranslatef(x, y, 0.0f); glEnable(GL_TEXTURE_2D); glBindTexture(GL_TEXTURE_2D, computertex[kind].texID); glBegin(GL_QUADS); glTexCoord2i(0, 0);glVertex2i(-25,-25); glTexCoord2i(1, 0);glVertex2i( 25,-25); glTexCoord2i(1, 1);glVertex2i( 25, 25); glTexCoord2i(0, 1);glVertex2i(-25, 25); glEnd(); glDisable(GL_TEXTURE_2D); glPopMatrix(); } } // 电脑飞机移动 void ComputerPlane::move() { if(x>-275 && x<275 && y>-325){ x=x+speed*cos(direction/180*PI)*timer/20; y=y+speed*sin(direction/180*PI)*timer/20; }else{ life=0; explosible=false; } } // 电脑飞机移动以及子弹发射 void ComputerPlane::fire() { if(life>0){ fireTime+=timer; // 射击速度随机 if((fireTime>1000+rand()%5000) && y>-100){ if(kind==0){ Ammunition t1(x,y-25,-90,3,100.0f,0); t1.setOwner(3); ammunitions[ammunitionIndex++]=t1; if(ammunitionIndex==MAX_AMMUNITION) ammunitionIndex=0; fireTime=0; }else if(kind==1){ int temp=atan((myPlane.getY()-(y-25))/(myPlane.getX()-x))/PI*180; if(myPlane.getX()<x) // 若飞机在子弹的左边，则加180度 temp+=180; Ammunition t1(x,y-25,temp,3,100.0f,0); t1.setOwner(3); ammunitions[ammunitionIndex++]=t1; if(ammunitionIndex==MAX_AMMUNITION) ammunitionIndex=0; fireTime=0; }else if(kind==2){ Ammunition t1(x,y-25,-90,3,100.0f,2); t1.setOwner(3); ammunitions[ammunitionIndex++]=t1; if(ammunitionIndex==MAX_AMMUNITION) ammunitionIndex=0; fireTime=0; } } } } // 电脑飞机爆炸 void ComputerPlane::blast() { if(life<=0 && explosible && blastNum<8){ glPushMatrix(); glTranslatef(x, y, 0.0f); glEnable(GL_TEXTURE_2D); glBindTexture(GL_TEXTURE_2D,othertex[2].texID); glBegin(GL_QUADS); glTexCoord2f(blastNum*0.125f, 0.0f); glVertex2f(-50.0f,-50.0f); gl