#include "hge.h"
#include "hgesprite.h"
#include "hgefont.h"
#include "hgeparticle.h"

HGE *hge=0;

hgeSprite* spr;
hgeSprite* spt;
hgeSprite* tar;
hgeFont* fnt;
hgeParticleSystem* par;

HTEXTURE tex;
HEFFECT snd;

HTARGET target;

float x=100.0f, y=100.0f;
float dx=0.0f, dy=0.0f;

const float speed=90;
const float friction=0.98f;

void boom() {
int pan=int((x-256)/2.56f);
float pitch=(dx*dx+dy*dy)*0.0005f+0.2f;
hge->Effect_PlayEx(snd,100,pan,pitch);
}

bool GfxRestoreFunc()
{
if(tar && target) tar->SetTexture(hge->Target_GetTexture(target));
return false;
}

bool FrameFunc()
{
float dt=hge->Timer_GetDelta();

if (hge->Input_GetKeyState(HGEK_ESCAPE)) return true;
if (hge->Input_GetKeyState(HGEK_LEFT)) dx-=speed*dt;
if (hge->Input_GetKeyState(HGEK_RIGHT)) dx+=speed*dt;
if (hge->Input_GetKeyState(HGEK_UP)) dy-=speed*dt;
if (hge->Input_GetKeyState(HGEK_DOWN)) dy+=speed*dt;

dx*=friction; dy*=friction; x+=dx; y+=dy;
if(x>496) {x=496-(x-496);dx=-dx;boom();}
if(x<16) {x=16+16-x;dx=-dx;boom();}
if(y>496) {y=496-(y-496);dy=-dy;boom();}
if(y<16) {y=16+16-y;dy=-dy;boom();}

par->info.nEmission=(int)(dx*dx+dy*dy);
par->MoveTo(x,y);
par->Update(dt);

return false;
}

bool RenderFunc()
{
int i;

hge->Gfx_BeginScene(target);
hge->Gfx_Clear(0);
par->Render();
spr->Render(x, y);
hge->Gfx_EndScene();

hge->Gfx_BeginScene();
hge->Gfx_Clear(0);
for(i=0;i<6;i++)
{
tar->SetColor(0xFFFFFF | (((5-i)*40+55)<<24));
tar->RenderEx(i*100.0f, i*50.0f, i*M_PI/8, 1.0f-i*0.1f);
}
fnt->printf(5, 5, HGETEXT_LEFT, "dt:%.3f\nFPS:%d (constant)", hge->Timer_GetDelta(), hge->Timer_GetFPS());
hge->Gfx_EndScene();

return false;
}

int WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, int)
{
hge = hgeCreate(HGE_VERSION);

hge->System_SetState(HGE_LOGFILE, "hge_tut04.log");
hge->System_SetState(HGE_FRAMEFUNC, FrameFunc);
hge->System_SetState(HGE_RENDERFUNC, RenderFunc);
hge->System_SetState(HGE_GFXRESTOREFUNC, GfxRestoreFunc);
hge->System_SetState(HGE_TITLE, "HGE Tutorial 04 - Using render targets");
hge->System_SetState(HGE_FPS, 100);
hge->System_SetState(HGE_WINDOWED, true);
hge->System_SetState(HGE_SCREENWIDTH, 800);
hge->System_SetState(HGE_SCREENHEIGHT, 600);
hge->System_SetState(HGE_SCREENBPP, 32);

tar=0;
target=0;

if(hge->System_Initiate()) {
snd=hge->Effect_Load("menu.wav");
tex=hge->Texture_Load("particles.png");
if(!snd || !tex)
{
MessageBox(NULL, "Can't load one of the following files:\nMENU.WAV, PARTICLES.PNG, FONT1.FNT, FONT1.PNG, TRAIL.PSI", "Error", MB_OK | MB_ICONERROR | MB_APPLMODAL);
hge->System_Shutdown();
hge->Release();
return 0;
}

spr=new hgeSprite(tex, 96, 64, 32, 32);
spr->SetColor(0xFFFFA000);
spr->SetHotSpot(16,16);

fnt=new hgeFont("font1.fnt");

spt=new hgeSprite(tex, 32, 32, 32, 32);
spt->SetBlendMode(BLEND_COLORMUL | BLEND_ALPHAADD | BLEND_NOZWRITE);
spt->SetHotSpot(16,16);
par=new hgeParticleSystem("trail.psi",spt);
par->Fire();

target=hge->Target_Create(512,512,false);
tar=new hgeSprite(hge->Target_GetTexture(target),0,0,512,512);
tar->SetBlendMode(BLEND_COLORMUL | BLEND_ALPHAADD | BLEND_NOZWRITE);

hge->System_Start();

delete par;
delete fnt;
delete spt;
delete spr;
delete tar;
hge->Target_Free(target);
hge->Texture_Free(tex);
hge->Effect_Free(snd);
}

// Clean up and shutdown
hge->System_Shutdown();
hge->Release();
return 0;
}

1>lk.obj : error LNK2001: unresolved external symbol "public: void __cdecl hgeFont::printf(float,float,int,char const *,...)" (?printf@hgeFont@@QAAXMMHPBDZZ)
1>lk.obj : error LNK2001: unresolved external symbol "public: __thiscall hgeFont::~hgeFont(void)" (??1hgeFont@@QAE@XZ)
1>lk.obj : error LNK2001: unresolved external symbol "public: __thiscall hgeFont::hgeFont(char const *,bool)" (??0hgeFont@@QAE@PBD_N@Z)
1>lk.obj : error LNK2001: unresolved external symbol "public: void __thiscall hgeParticleSystem::MoveTo(float,float,bool)" (?MoveTo@hgeParticleSystem@@QAEXMM_N@Z)
1>lk.obj : error LNK2001: unresolved external symbol "public: void __thiscall hgeParticleSystem::Update(float)" (?Update@hgeParticleSystem@@QAEXM@Z)
1>lk.obj : error LNK2001: unresolved external symbol "public: void __thiscall hgeParticleSystem::Fire(void)" (?Fire@hgeParticleSystem@@QAEXXZ)
1>lk.obj : error LNK2001: unresolved external symbol "public: void __thiscall hgeParticleSystem::Render(void)" (?Render@hgeParticleSystem@@QAEXXZ)
1>lk.obj : error LNK2001: unresolved external symbol "public: __thiscall hgeParticleSystem::hgeParticleSystem(char const *,class hgeSprite *)" (??0hgeParticleSystem@@QAE@PBDPAVhgeSprite@@@Z)
1>lk.obj : error LNK2001: unresolved external symbol "public: void __thiscall hgeSprite::SetColor(unsigned long,int)" (?SetColor@hgeSprite@@QAEXKH@Z)
1>lk.obj : error LNK2001: unresolved external symbol "public: void __thiscall hgeSprite::Render(float,float)" (?Render@hgeSprite@@QAEXMM@Z)
1>lk.obj : error LNK2001: unresolved external symbol "public: __thiscall hgeSprite::hgeSprite(unsigned long,float,float,float,float)" (??0hgeSprite@@QAE@KMMMM@Z)
1>lk.obj : error LNK2001: unresolved external symbol "private: static class HGE * hgeParticleSystem::hge" (?hge@hgeParticleSystem@@0PAVHGE@@A)
1>lk.obj : error LNK2001: unresolved external symbol "protected: static class HGE * hgeSprite::hge" (?hge@hgeSprite@@1PAVHGE@@A)
1>C:\Users\Дмитрий\Documents\Visual Studio 2010\Projects\llll\Release\llll.exe : fatal error LNK1120: 13 unresolved externals
1>
1>Build FAILED.