public void UpdateDebugInput(Matrix worldMatrix, Keys toggleKey = Keys.L)
{
//if (!Input.GameIsActive) return;
//if (Input.KeyPressed(toggleKey))
// EnableDebugLight = !EnableDebugLight;
if (EnableDebugLight)
{
if (debugLight == null)
{
debugLight = new Light2D();
}
if (!Lights.Contains(debugLight))
{
Lights.Add(debugLight);
}
debugLight.Position = Q19.Q19Game.Instance.MousePosition;// Vector2.Transform(Game.Frames.Main.TransformScreenToViewport(Input.MousePos), Matrix.Invert(worldMatrix)); //TODO: Should use the current frame
}
else
{
if (Lights.Contains(debugLight))
{
Lights.Remove(debugLight);
}
return;
}
//Ward.Watch("Lighting2D.lights", Lights.Count);
//Ward.Watch("Lighting2D.objs", VertexObjs.Count);
//Ward.Watch("Lighting2D.debuglight", debugLight.ToString());
//var scrollDelta = Input.States.MouseScrollDelta;
//if (scrollDelta != 0)
//{
//var hsl = new Color(debugLight.Color);
//hsl.SetBrightness(0.5f);
//if (Input.KeyDown(Keys.LeftAlt))
// hsl.SetSaturation(hsl.GetSaturation() + scrollDelta * 0.025f);
//else if (Input.KeyDown(Keys.LeftShift))
// hsl.SetHue(hsl.GetHue() + scrollDelta * 0.025f);
//else if (Input.KeyDown(Keys.LeftControl))
// debugLight.Falloff = debugLight.Falloff * (1 + scrollDelta * 0.1f);
//else if (Input.KeyDown(Keys.Z))
// debugLight.AngleOuter += scrollDelta * 2f;
//else if (Input.KeyDown(Keys.X))
// debugLight.AngleInner += scrollDelta * 2f;
//else if (Input.KeyDown(Keys.C))
// debugLight.Direction += scrollDelta * 0.05f;
//else
// debugLight.Size = debugLight.Size * (1 + scrollDelta * 0.1f);
// debugLight.Color = hsl.ToVector4();
//}
//if (Input.KeyPressed(Keys.K))
//{
// if (Input.KeyPressed(Keys.D1)) debugLight.Type = Light2D.LightType.Omni;
// if (Input.KeyPressed(Keys.D2)) debugLight.Type = Light2D.LightType.Cone;
// if (Input.KeyPressed(Keys.D3)) debugLight.Type = Light2D.LightType.Directional;
//}
//if (Input.KeyPressed(MouseKeys.Left))
// Lights.Insert(0, debugLight.Clone());
//if (lights.Count > 0)
// lights[0].Position = (Point2)Input.MousePos;
}
private void drawLight(Light2D light, ref AABB lightQuad)
{
//TODO: Move vertex calculation to seperate update and draw when using for split screen
if (!light.Enabled)
{
return;
}
var gd = Graphics;
// Light parameters
lightPos.SetValue(light.Position);
lightColor.SetValue(light.Color);
lightFalloff.SetValue(light.Falloff);
lightFalloff2.SetValue(light.Falloff2);
lightSize.SetValue(light.Size);
lightDirection.SetValue(light.Direction.ToDirectionVector());
lightAngle.SetValue(light.AngleOuter / 360f);
lightAngleInner.SetValue(light.AngleInner / 360f);
if (light.CastShadows)
{
// Calculate shadows from vertices and draw to stencil
gd.DepthStencilState = stencilOnly;
gd.BlendState = blendStencil;
effect.Techniques[0].Passes[0].Apply(); // Stencil only simple pixelshader
foreach (var obj in VertexObjs)
{
shadowcasts++;
Vector2[] vertices = obj.GetVertices();
for (int v = 0; v < vertices.Length; v++)
{
Vector2 currentVertex = vertices[v];
Vector2 nextVertex = vertices[(v + 1) % vertices.Length];
/// Doubles the amount of vertices draw, but below code doesnt work to remove backfaced vertices
/// Maybe its cheaper to skip all these checks and just send double count of vertices?
/// Should probably find proper solution to cull backsides (test by placing light within object)
//Vector2 edge = Vector2.Subtract(nextVertex, currentVertex);
//Vector2 normal = new Vector2(edge.Y, -edge.X);
//Vector2 normal = Vector2.Normalize(edge);
//Vector2 lightToCurrent = Vector2.Subtract(currentVertex, light.Position);
//if (Vector2.Dot(normal, lightToCurrent) > 0)
DrawQuad(Vector2.Add(currentVertex, Vector2.Subtract(currentVertex, light.Position) * Width * 10),
currentVertex,
Vector2.Add(nextVertex, Vector2.Subtract(nextVertex, light.Position) * Width * 10),
nextVertex);
}
}
}
// Disable stencil buffer and draw to color
gd.DepthStencilState = stencilNormal;
gd.BlendState = blendNormal;
// Draw light on quad where stencil is empty
effect.Techniques[0].Passes[(int)light.Type + 1].Apply(); // Choose light pixel shader (based on light type)
DrawQuad(new Vector2(lightQuad.Left, lightQuad.Top), new Vector2(lightQuad.Left, lightQuad.Bottom), new Vector2(lightQuad.Right, lightQuad.Top), new Vector2(lightQuad.Right, lightQuad.Bottom));
// Clear stencil for next light
gd.Clear(ClearOptions.Stencil, Color.Transparent, 0, 0);
}