Всех тех противников в игре заменить на одного противника-игрока

#include <hge.h>
#include <hgesprite.h>
#include <hgevector.h>
#include <list>
 
#include "c_player.h"
#include "c_bullet.h"
#include "c_enemy.h"
 
HGE*    hge = NULL;
 
#define BACKGROUND_SCROLLING_SPEED  0.105f
#define BACKGROUND_ALPHA_MIN        50
#define BACKGROUND_ALPHA_MAX        255
 
//Enemies
std::list<c_enemy*> Enemies;
 
HTEXTURE    g_tEColors[5]       = { 0 };
 
//Player
c_player*   Player1             = NULL;
c_player*  Player2 = NULL; 
std::list<c_bullet*> Bullets;
HTEXTURE    g_tBullet           = 0;
HTEXTURE    g_tEColors      =  0 ;
//Background
HTEXTURE    g_tBackground       = 0;
HTEXTURE    g_tBGGapFix         = 0;
HTEXTURE    g_tStars            = 0;
 
hgeSprite*  g_sBackground       = NULL;
hgeSprite*  g_sBGGapFix         = NULL;
hgeSprite*  g_sStars            = NULL;
 
hgeVector   g_vBGPosition       = hgeVector(0,0);
 
bool        g_bBGFadeIn         = false;
bool        g_bBGFadeOut        = true;
short       g_nBGAlpha          = 255;
 
//Explosion
HTEXTURE    g_tExplosion        = 0;
 
struct explosion
{
    hgeAnimation*   Animation;
    hgeVector       Position;
};
std::list<explosion> Explosions;
 
void        CreateExplosion(hgeVector Position);
 
//Sound
HEFFECT     g_eBGMusic          = 0;
HEFFECT     g_eBGMusic2         = 0;
HEFFECT     g_eBGMusic3         = 0;
HEFFECT     g_eGunshot          = 0;
HEFFECT     g_eExplosion        = 0;
 
 
bool FrameFunc()
{
    float delta = hge->Timer_GetDelta();
    
    //Background
    if(g_vBGPosition.x < 800) g_vBGPosition.x += BACKGROUND_SCROLLING_SPEED;
    else g_vBGPosition  = hgeVector(-982,0);
 
    if(g_bBGFadeOut)
    {
        g_nBGAlpha -= 2;
 
        if(g_nBGAlpha <= BACKGROUND_ALPHA_MIN)
        {
            g_bBGFadeOut = false;
            g_bBGFadeIn  = true;
        }
    }
    else if(g_bBGFadeIn)
    {
        g_nBGAlpha += 2;
 
        if(g_nBGAlpha >= BACKGROUND_ALPHA_MAX)
        {
            g_bBGFadeOut = true;
            g_bBGFadeIn  = false;
        }
    }
    g_sStars->SetColor(ARGB(g_nBGAlpha,255,255,255));
    
    //Explosions
    for(auto i = Explosions.begin(); i != Explosions.end(); /**/)
    {
        if((*i).Animation->GetFrame() == 4)
        {
            delete (*i).Animation;
            i = Explosions.erase(i);
        }
        else
        {
            (*i).Animation->Update(delta);
            i++;
        }
    }
 
    //Enemies
    Player2->Update(delta);
 
    if(hge->Input_KeyDown(HGEK_SPACE))
    {
        //Single shot
        c_bullet* Bullet = new c_bullet(Player2->GetPosition() + hgeVector(16,0), hgeVector(15,0), g_tBullet, 10);
                        
        Bullets.push_back(Bullet);
 
        hge->Effect_PlayEx(g_eGunshot,35,0,hge->Random_Float(1,1.5));
    }
 
    for(auto i = Bullets.begin(); i != Bullets.end(); /**/)
    {
        (*i)->Update();
 
        if((*i)->GetPosition().x > 800 || (*i)->GetPosition().x < 0 || (*i)->GetPosition().y < 0 || (*i)->GetPosition().y > 600) i = Bullets.erase(i);
        else i++;
    }
 
 
 
    
    //Player
    Player1->Update(delta);
 
    if(hge->Input_KeyDown(HGEK_SPACE))
    {
        //Single shot
        c_bullet* Bullet = new c_bullet(Player1->GetPosition() + hgeVector(16,0), hgeVector(15,0), g_tBullet, 10);
                        
        Bullets.push_back(Bullet);
 
        hge->Effect_PlayEx(g_eGunshot,35,0,hge->Random_Float(1,1.5));
    }
 
    for(auto i = Bullets.begin(); i != Bullets.end(); /**/)
    {
        (*i)->Update();
 
        if((*i)->GetPosition().x > 800 || (*i)->GetPosition().x < 0 || (*i)->GetPosition().y < 0 || (*i)->GetPosition().y > 600) i = Bullets.erase(i);
        else i++;
    }
 
    //Collision Bullet vs Enemy
    if(!Bullets.empty() && !Enemies.empty())
    {
        for(auto i = Bullets.begin(); i != Bullets.end(); /**/)
        {
            bool bHit = false;
 
            for(auto x = Enemies.begin(); x != Enemies.end(); x++)
            {
                if((*x)->GetBoundingBox().Intersect(&(*i)->GetBoundingBox()))
                {
                    (*x)->SetHealth((*x)->GetHealth() - (*i)->GetDamage());
 
                    delete (*i);
                    i    = Bullets.erase(i);
                    bHit = true;
 
                    break;
                }
            }
            if(!bHit) i++;
        }
    }
 
    //Check Enemy's health
    for(auto i = Enemies.begin(); i != Enemies.end(); /**/)
    {
        if((*i)->GetHealth() <= 0)
        {
            CreateExplosion((*i)->GetPosition());
 
            delete (*i);
            i = Enemies.erase(i);
        }
        else i++;
    }
 
    //Enemy vs Player
    for(auto i = Enemies.begin(); i != Enemies.end(); /**/)
    {
        if((*i)->GetBoundingBox().Intersect(&Player1->GetBoundingBox()))
        {
            CreateExplosion((*i)->GetPosition());
 
            delete (*i);
            i = Enemies.erase(i);
 
            Player1->SetPosition(hgeVector(10,268));
            Player1->SetVelocity(hgeVector(0,0));
        }
        else i++;
    }
 
    if (hge->Input_GetKeyState(HGEK_ESCAPE)) return true;
    return false;
}
 
bool RenderFunc()
{
    hge->Gfx_BeginScene();
    hge->Gfx_Clear(0);
 
    //Background
    g_sBackground->Render(g_vBGPosition.x,g_vBGPosition.y);
    if(g_vBGPosition.x > -1)    g_sBackground->Render(g_vBGPosition.x - 982 - 800, 0);
    g_sBGGapFix->Render(g_vBGPosition.x - 28, 0);
 
    g_sStars->Render(0,0);
 
    //Player
    Player1->Render();
 
    for(auto i = Bullets.begin(); i!= Bullets.end(); i++)
    {
        (*i)->Render();
    }
 
    //Enemies
    for(auto i = Enemies.begin(); i != Enemies.end(); i++)
    {
        (*i)->Render();
    }
 
    //Explosions
    for(auto i = Explosions.begin(); i != Explosions.end(); i++)
    {
        (*i).Animation->Render((*i).Position.x, (*i).Position.y);
    }
 
 
    hge->Gfx_EndScene();
    return false;
}
 
int WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, int)
{
    hge = hgeCreate(HGE_VERSION);
    hge->System_SetState(HGE_FRAMEFUNC, FrameFunc);
    hge->System_SetState(HGE_RENDERFUNC, RenderFunc);
    hge->System_SetState(HGE_WINDOWED, true);
    hge->System_SetState(HGE_USESOUND, true);
    hge->System_SetState(HGE_FPS, HGEFPS_VSYNC);
    hge->System_SetState(HGE_TITLE, "Spaceshooter");
 
    if(hge->System_Initiate())
    {
        Bullets.clear();
 
        //Background
        g_tBackground   = hge->Texture_Load("images/farback.jpg");
        g_tBGGapFix     = hge->Texture_Load("images/bg_gapfix.jpg");
        g_tStars        = hge->Texture_Load("images/starfield.png");
 
        g_sBackground   = new hgeSprite(g_tBackground, 0, 0, 1782, 600);
        g_sBGGapFix     = new hgeSprite(g_tBGGapFix, 0, 0, 64, 600);
        g_sStars        = new hgeSprite(g_tStars, 0, 0, 800, 600);
 
        g_vBGPosition   = hgeVector(-982, 0);
 
        //Player
        Player1         = new c_player(hgeVector(10, 268), hgeVector(5,0));
 
        g_tBullet       = hge->Texture_Load("images/bullet.png");
 
        //Enemies
        g_tEColors= hge->Texture_Load("images/Spritesheet_64x29.png");
        //g_tEColors[1] = hge->Texture_Load("images/eSpritesheet_40x30_hue1.png");
    //  g_tEColors[2]   = hge->Texture_Load("images/eSpritesheet_40x30_hue2.png");
    //  g_tEColors[3]   = hge->Texture_Load("images/eSpritesheet_40x30_hue3.png");
    //  g_tEColors[4]   = hge->Texture_Load("images/eSpritesheet_40x30_hue4.png");
 
        //Explosion
        g_tExplosion    = hge->Texture_Load("images/Explosion-Sprite-Sheet.png");
 
        //Sounds
        g_eBGMusic      = hge->Effect_Load("sounds/134707__atanasiu__deepspace-sonification.ogg");
        g_eBGMusic2     = hge->Effect_Load("sounds/158733__panzertank15__spaceambient.ogg");
        g_eBGMusic3     = hge->Effect_Load("sounds/108929__soulman-90__ambience-space.ogg");
        g_eGunshot      = hge->Effect_Load("sounds/111047__cyberkineticfilms__gunshot-2-laser.ogg");
        g_eExplosion    = hge->Effect_Load("sounds/21410__heigh-hoo__blow.aif");
 
 
        hge->Effect_PlayEx(g_eBGMusic, 40, 0, 0, true);
        hge->Effect_PlayEx(g_eBGMusic2, 100, 0, 0, true);
        hge->Effect_PlayEx(g_eBGMusic3, 10, 0, 0, true);
 
        hge->System_Start();
 
        //Cleanup..
        hge->Texture_Free(g_tBackground);
        hge->Texture_Free(g_tExplosion);
        hge->Texture_Free(g_tBGGapFix);
        hge->Texture_Free(g_tBullet);
        hge->Texture_Free(g_tStars);
        
        hge->Effect_Free(g_eExplosion);
        hge->Effect_Free(g_eBGMusic);
        hge->Effect_Free(g_eBGMusic2);
        hge->Effect_Free(g_eBGMusic3);
        hge->Effect_Free(g_eGunshot);
 
        delete g_sBackground;
        delete g_sBGGapFix;
        delete g_sStars;
        delete Player1;
        
        for(auto i = Bullets.begin(); i != Bullets.end(); /**/)
        {
            delete (*i);
            i = Bullets.erase(i);
        }
 
        for(auto i = Enemies.begin(); i != Enemies.end(); /**/)
        {
            delete (*i);
            i = Enemies.erase(i);
        }
 
        for(short i = 0; i < 5; i++) hge->Texture_Free(g_tEColors[i]);
 
        for(auto i = Explosions.begin(); i != Explosions.end(); /**/)
        {
            delete (*i).Animation;
            i = Explosions.erase(i);
        }
 
    }
    else
    {
      MessageBox(NULL, hge->System_GetErrorMessage(), "Error", MB_OK | MB_ICONERROR | MB_APPLMODAL);
    }
    
    hge->System_Shutdown();
    hge->Release();
 
    return 0;
}
 
void CreateExplosion(hgeVector Position)
{
    explosion exp;
    exp.Animation = new hgeAnimation(g_tExplosion,5,10,0,0,118,118);
    exp.Animation->SetHotSpot(59,59);
    exp.Animation->Play();
    exp.Position = Position;
    Explosions.push_back(exp);
 
    hge->Effect_PlayEx(g_eExplosion,100,0,hge->Random_Float(1,3));
}

#include "c_enemy.h"
 
HGE* c_enemy::hge = 0;
 
c_enemy::c_enemy(hgeVector position, hgeVector velocity, short health, HTEXTURE &Texture) : Position(position), Velocity(velocity), Health(health)
{
    hge = hgeCreate(HGE_VERSION);
 
    Sprite  = new hgeAnimation(Texture,6,6,0,0,40,30);
    Sprite->SetHotSpot(20,15);
    Sprite->Play();
 
    Speed       = 0.030;
 
    CenterY     = 0;
    Radius      = hge->Random_Float(50.0f,80.0f);
    Angle       = 0.0f;
    bCenterYSet = false;
    bOscillate  = false;
}
 
c_enemy::~c_enemy()
{
    delete Sprite;
 
    hge->Release();
}
 
bool c_enemy::Update(float delta)
{
    Velocity.x *= ENEMY_FRICTION;
    Velocity.y *= ENEMY_FRICTION;
 
    Position.x += Velocity.x;
    if(!bOscillate) Position.y += Velocity.y;
    else
    {
        if(!bCenterYSet)
        {
            if(Velocity.y > -0.000001f && Velocity.y < 0.000001f)
            {
                CenterY = Position.y;
                bCenterYSet = true;
            }
        }
 
        Position.y = CenterY + sin(Angle) * Radius;
        Angle += 2 * delta;
    }
 
    Sprite->Update(delta);
    
    Velocity.x -= Speed;
    
    Sprite->GetBoundingBox(Position.x, Position.y, &BoundingBox);
    return false;
}
 
void c_enemy::Render()
{
    Sprite->Render(Position.x, Position.y);
}