#include "hud.h" 
#include "cl_util.h"
#include "parsemsg.h" 
#include "hud_servers.h" 
#include "triangleapi.h" 
#include "r_studioint.h" 
#include "com_model.h"

#include <string.h> 
#include <stdio.h>

extern engine_studio_api_t IEngineStudio;

void DrawQuad(float xmin, float ymin, float xmax, float ymax) 
{ 
gEngfuncs.pTriAPI->TexCoord2f(0,0); 
gEngfuncs.pTriAPI->Vertex3f(xmin, ymin, 0); 
gEngfuncs.pTriAPI->TexCoord2f(0,1); 
gEngfuncs.pTriAPI->Vertex3f(xmin, ymax, 0); 
gEngfuncs.pTriAPI->TexCoord2f(1,1); 
gEngfuncs.pTriAPI->Vertex3f(xmax, ymax, 0); 
gEngfuncs.pTriAPI->TexCoord2f(1,0); 
gEngfuncs.pTriAPI->Vertex3f(xmax, ymin, 0); 
}

DECLARE_MESSAGE(m_Zoom, ZoomHUD)

int CHudZoom::Init() 
{ 
m_iHudMode = 0; HOOK_MESSAGE(ZoomHUD);

m_iFlags |= HUD_ACTIVE;

gHUD.AddHudElem(this); 
return 1; 
}

int CHudZoom::VidInit() 
{ 
m_hBottom_Left = SPR_Load("sprites/snipars.spr"); 
m_hBottom_Right = SPR_Load("sprites/snipars.spr"); 
m_hTop_Left = SPR_Load("sprites/snipars.spr"); 
m_hTop_Right = SPR_Load("sprites/snipars.spr"); 
m_hBlack = SPR_Load("sprites/snipars.spr"); 
m_iHudMode = 0; 
return 1; 
}

int CHudZoom::MsgFunc_ZoomHUD (const char *pszName, int iSize, void *pbuf ) 
{ 
BEGIN_READ( pbuf, iSize ); 
m_iHudMode = READ_BYTE(); 
return 1; 
}

int CHudZoom::Draw(float flTime) 
{
if(!IEngineStudio.IsHardware() || !m_hBottom_Left || !m_hBottom_Right || !m_hTop_Left || !m_hTop_Right ) 
return 0;

if(!m_iHudMode)
return 0;

gEngfuncs.pTriAPI->RenderMode(kRenderTransColor); 
gEngfuncs.pTriAPI->Brightness(1.0); 
gEngfuncs.pTriAPI->Color4ub(255, 255, 255, 255); 
gEngfuncs.pTriAPI->CullFace(TRI_NONE); 
float left = (ScreenWidth - ScreenHeight)/2; 
float right = left + ScreenHeight; 
float centerx = ScreenWidth/2; 
float centery = ScreenHeight/2;

gEngfuncs.pTriAPI->SpriteTexture((struct model_s *)gEngfuncs.GetSpritePointer( m_hTop_Left ), 0); 
gEngfuncs.pTriAPI->Begin(TRI_QUADS); 
DrawQuad(left, 0, centerx, centery); 
gEngfuncs.pTriAPI->End();

gEngfuncs.pTriAPI->SpriteTexture((struct model_s *)gEngfuncs.GetSpritePointer( m_hTop_Right ), 0); 
gEngfuncs.pTriAPI->Begin(TRI_QUADS); DrawQuad(centerx, 0, right, centery); 
gEngfuncs.pTriAPI->End();

gEngfuncs.pTriAPI->SpriteTexture((struct model_s *)gEngfuncs.GetSpritePointer( m_hBottom_Right ), 0); 
gEngfuncs.pTriAPI->Begin(TRI_QUADS); 
DrawQuad(centerx, centery, right, ScreenHeight); 
gEngfuncs.pTriAPI->End();

gEngfuncs.pTriAPI->SpriteTexture((struct model_s *)gEngfuncs.GetSpritePointer( m_hBottom_Left ), 0); 
gEngfuncs.pTriAPI->Begin(TRI_QUADS); 
DrawQuad(left, centery, centerx, ScreenHeight); 
gEngfuncs.pTriAPI->End();

gEngfuncs.pTriAPI->SpriteTexture((struct model_s *)gEngfuncs.GetSpritePointer( m_hBlack ), 0); 
gEngfuncs.pTriAPI->Begin(TRI_QUADS); 
DrawQuad(0, 0, (left + 1), ScreenHeight); 
gEngfuncs.pTriAPI->End();

gEngfuncs.pTriAPI->SpriteTexture((struct model_s *)gEngfuncs.GetSpritePointer( m_hBlack ), 0); 
gEngfuncs.pTriAPI->Begin(TRI_QUADS); 
DrawQuad((right - 1), 0, ScreenWidth, ScreenHeight); 
gEngfuncs.pTriAPI->End();

return 1; 
}