#include <acknex.h>

VECTOR vtemp;

MATERIAL *MAT_Camera =
{
	effect = "mixer.fx";
}

function main ()
{
	video_mode = 10;
	
	wait(2);
	level_load ( "level.wmb" );
	wait(3);
	
	BMAP *IMG_Model = bmap_createblack ( screen_size.x, screen_size.y, 32 );
	VIEW *CAM_Model = view_create ( -1 );
	CAM_Model.bmap = IMG_Model;
	set ( CAM_Model, SHOW | NOWORLD );
	
	BMAP *IMG_World = bmap_createblack ( screen_size.x, screen_size.y, 32 );
	VIEW *CAM_World = view_create ( -1 );
	CAM_World.bmap = IMG_World;
	set ( CAM_World, SHOW | NOENT );

	camera.flags |= PROCESS_TARGET;
	camera.material = MAT_Camera;
	MAT_Camera.skin1 = IMG_Model;
	MAT_Camera.skin2 = IMG_World;
	
	while ( !key_esc )
	{
		camera.pan += mouse_force.x;
		camera.tilt = clamp ( camera.tilt + mouse_force.y, -60, 5 );
		vec_set ( vtemp, vector ( -40, 0, 0 ) );
		vec_rotate ( vtemp, camera.pan );
		vec_set ( camera.x, vtemp );
		
		vec_set ( CAM_Model.x, camera.x );
		vec_set ( CAM_Model.pan, camera.pan );
		vec_set ( CAM_World.x, camera.x );
		vec_set ( CAM_World.pan, camera.pan );
		
		wait(1);
	}
	
	sys_exit ( NULL );
}

texture mtlSkin1;
texture mtlSkin2;

sampler2D ModelSampler = sampler_state
{
   Texture = <mtlSkin1>;
   MipFilter = Linear;   
   AddressU  = clamp;
   AddressV  = clamp;
};
	
sampler2D WorldSampler = sampler_state
{
   Texture = <mtlSkin2>;
   MipFilter = Linear;   
   AddressU  = clamp;
   AddressV  = clamp;
};
	
float4 PS ( in float2 ScreenCoor: TEXCOORD0 ) : COLOR0
{
	float3 GlowColor = float3 ( 1.0f, 0.5f, 0.5f );
	float CoorYInv = 1.0f - ScreenCoor.y;
	float CoorXMid = ScreenCoor.x - 0.5f;
	float2 Coor = ScreenCoor;
	
	float4 BG = tex2D ( WorldSampler, Coor );
	float4 Model = tex2D ( ModelSampler, Coor );
	
	Coor.x = ( CoorXMid * ( 1.0f - ( 0.1 * CoorYInv ) ) ) + 0.5f;
	Coor.y += 0.01 * CoorYInv;
	float4 Glow1 = tex2D ( ModelSampler, Coor );
	
	Coor.x = ( CoorXMid * ( 1.0f - ( 0.2 * CoorYInv ) ) ) + 0.5f;
	Coor.y += 0.015 * CoorYInv;
	float4 Glow2 = tex2D ( ModelSampler, Coor );
	
	Coor.x = ( CoorXMid * ( 1.0f - ( 0.4 * CoorYInv ) ) ) + 0.5f;
	Coor.y += 0.02 * CoorYInv;
	float4 Glow3 = tex2D ( ModelSampler, Coor );
	
	float4 FinalColor;
	FinalColor.a = max ( (Glow1.a+Glow2.a+Glow3.a)*0.2, Model.a );
	FinalColor.rgb = ( ( Model.rgb * Model.a ) + ( CoorYInv * ( 1.0f - Model.a ) ) ) * FinalColor.a;
	FinalColor.rgb += BG.rgb * ( 1.0f - FinalColor.a ); 
	return FinalColor;
}

technique PostProcess
{
	pass p0
	{
		VertexShader = NULL;
		PixelShader  = compile ps_2_0 PS();
	}
}