/// <summary>
/// Checks which lights are visible on screen and sends them to the shader.
/// </summary>
/// <param name="windowwidth"></param>
/// <param name="windowheight"></param>
/// <param name="cam"></param>
/// <param name="progid"></param>
public static void SendVisibleLightsToShader(int windowwidth, int windowheight, Camera cam)
{
int screenx = ((int)cam.Position.X - (windowwidth / 2)), screeny = ((int)cam.Position.Y - (windowheight / 2));
//int screenright = (screenx + windowwidth), screentop = (screeny + windowheight);
//int right = (int)(posV3.X + dimV2.X), top = (int)(posV3.Y + dimV2.Y);
//System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();
//sw.Start();
for(int i = 0; i < numLights_I; ++i) { //Lägg till alla för tillfället
//Array.Copy(lights_ArLig[i].PositionMinRadFAR, 0, posMinRad_ArF, (i * 4), 4);
//Array.Copy(lights_ArLig[i].ColorExtraSizeFAR, 0, colExtraSize_ArF, (i * 4), 4);
//Buffer.BlockCopy(lights_ArLig[i].PositionMinRadFAR, 0, posMinRad_ArF, ((i * 4) * sizeof(float)), (4 * sizeof(float)));
//Buffer.BlockCopy(lights_ArLig[i].ColorExtraSizeFAR, 0, colExtraSize_ArF, ((i * 4) * sizeof(float)), (4 * sizeof(float)));
posMinRad_ArF[(i * 4)] = lights_ArLig[i].PositionMinRad.X;
posMinRad_ArF[(i * 4) + 1] = lights_ArLig[i].PositionMinRad.Y;
posMinRad_ArF[(i * 4) + 2] = lights_ArLig[i].PositionMinRad.Z;
posMinRad_ArF[(i * 4) + 3] = lights_ArLig[i].PositionMinRad.W;
colExtraSize_ArF[(i * 4)] = lights_ArLig[i].ColorExtraSize.X;
colExtraSize_ArF[(i * 4) + 1] = lights_ArLig[i].ColorExtraSize.Y;
colExtraSize_ArF[(i * 4) + 2] = lights_ArLig[i].ColorExtraSize.Z;
colExtraSize_ArF[(i * 4) + 3] = lights_ArLig[i].ColorExtraSize.W;
}
//sw.Stop();
//Console.WriteLine("Time: " + sw.ElapsedMilliseconds.ToString() + "ms.");
/*GL.Uniform1(uniformNumLights_I, numLights_I);
GL.Uniform4(uniformLightsPosMinRad_I, (10 * 4), posMinRad_ArF);
GL.Uniform4(uniformLightColExtraSize_I, (10 * 4), colExtraSize_ArF);*/
//test = { GetLight(0).X, GetLight(0).Y };
if(numLights_I > 0) {
//test[0] = GetLight(0).X; test[1] = GetLight(0).Y;
//GL.Uniform2(ulightpos_I, (2 * 4), test);
Vector2 test = new Vector2(GetLight(0).X, GetLight(0).Y);
GL.Uniform2(ulightpos_I, test);
}
}
/// <summary>
/// This draw method checks if the Quad is inside the window and calls the normal Draw() if it is.
///
/// Denna draw metod kollar om Quad:en har nån del innuti fönstret
/// Om den har det så kallas vanliga Draw(), annars så gör ingenting
/// Simulerar VFC - eftersom vi bara är i 2D (och OGL context:et bör täcka hela fönstret här) så är denna koll nog billigare än att göra riktig VFC (blev dock mer uträkningar än väntat pga. kameran...)
/// OBS: Fungerar bara i Ortho (och om OpenGL context:en är lika stor som fönstret?)
/// </summary>
/// <param name="windowwidth"></param>
/// <param name="windowheight"></param>
/// <param name="cam"></param>
/// <param name="ScaleFactor"></param>
/// <param name="rotz"></param>
/// <param name="StaticPos"></param>
/// <param name="FromBatcher"></param>
public void Draw(int windowwidth, int windowheight, Camera cam, float ScaleFactor = 1f, float rotz = 0.0f/*, bool ShadowPass = false*/, bool StaticPos = false, bool FromBatcher = false)
{
//UPPDATERA SÅ DEN KOLLAR MED SKALNINGEN OCKSÅ????
int screenx, screeny, screenright, screentop;
int right, top;
//if(ShadowPass && !shadowCaster_B) { return; } //If doing a shadowpass and this drawable is not a shadowcaster - abort/skip!
screenx = ((int)cam.Position.X - (windowwidth / 2));
screeny = ((int)cam.Position.Y - (windowheight / 2));
screenright = (screenx + windowwidth);
screentop = (screeny + windowheight);
right = (int)(pos_V3.X + dim_V2.X);
top = (int)(pos_V3.Y + dim_V2.Y);
//http://stackoverflow.com/questions/306316/determine-if-two-rectangles-overlap-each-other
//http://silentmatt.com/rectangle-intersection/
//if(A.x1 < B.x2 && A.x1 > B.x1 && A.y1 < B.y2 && A.y2 > B.y1)
if(((dim_V2.X > windowwidth) || (dim_V2.Y > windowheight)) //If bigger than the window
|| ((screenx < right) && (screenright > pos_V3.X) && (screeny < top) && (screentop > pos_V3.Y))) { //If (partly) inside the window
Draw(ScaleFactor, 0.0f, 0.0f, rotz, StaticPos, FromBatcher);
}
}
