| private static IsInRange ( Vector2 offset, float dist ) : bool | ||
| offset | Vector2 | Offset |
| dist | float | Distance |
| return | bool | |
/// <summary>
/// Draws shadows from the light's position outward
/// </summary>
/// <param name="helper">A render helper for drawing shadows</param>
/// <param name="hulls">The shadow hulls used to draw shadows</param>
public void Draw(KryptonRenderHelper helper, List <ShadowHull> hulls)
{
// Draw the light only if it's on
if (!this.mIsOn)
{
return;
}
// Make sure we only render the following hulls
helper.ShadowHullVertices.Clear();
helper.ShadowHullIndicies.Clear();
// Loop through each hull
foreach (ShadowHull hull in hulls)
{
//if(hull.Bounds.Intersects(this.Bounds))
// Add the hulls to the buffer only if they are within the light's range
if (hull.Visible && Light2D.IsInRange(hull.Position - this.Position, hull.MaxRadius * Math.Max(hull.Scale.X, hull.Scale.Y) + this.Range))
{
helper.BufferAddShadowHull(hull);
}
}
var shadowEffect = helper.Effect.Techniques["PointLight_Shadow_Fast"];
helper.Effect.CurrentTechnique = shadowEffect;
// Set the effect parameters
helper.Effect.Parameters["LightPosition"].SetValue(this.mPosition);
helper.Effect.Parameters["Texture0"].SetValue(this.mTexture);
helper.Effect.Parameters["LightIntensityFactor"].SetValue(1 / (this.mIntensity * this.mIntensity));
shadowEffect.Passes["ShadowStencil"].Apply();
helper.BufferDraw();
shadowEffect.Passes["Light"].Apply();
helper.DrawClippedFov(this.mPosition, this.mAngle, this.mRange * 2, this.mColor, this.mFov);
}
/// <summary>
/// Draws shadows from the light's position outward
/// </summary>
/// <param name="helper">A render helper for drawing shadows</param>
/// <param name="hulls">The shadow hulls used to draw shadows</param>
public void Draw(KryptonRenderHelper helper, List <ShadowHull> hulls)
{
// Draw the light only if it's on
if (!this.mIsOn)
{
return;
}
// Make sure we only render the following hulls
helper.ShadowHullVertices.Clear();
helper.ShadowHullIndicies.Clear();
// Loop through each hull
foreach (ShadowHull hull in hulls)
{
//if(hull.Bounds.Intersects(this.Bounds))
// Add the hulls to the buffer only if they are within the light's range
if (hull.Visible && Light2D.IsInRange(hull.Position - this.Position, hull.MaxRadius * Math.Max(hull.Scale.X, hull.Scale.Y) + this.Range))
{
helper.BufferAddShadowHull(hull);
}
}
// Set the effect and parameters
helper.Effect.Parameters["LightPosition"].SetValue(this.mPosition);
helper.Effect.Parameters["Texture0"].SetValue(this.mTexture);
helper.Effect.Parameters["LightIntensityFactor"].SetValue(1 / (this.mIntensity * this.mIntensity));
switch (this.mShadowType)
{
case (ShadowType.Solid):
helper.Effect.CurrentTechnique = helper.Effect.Techniques["PointLight_Shadow_Solid"];
break;
case (ShadowType.Illuminated):
helper.Effect.CurrentTechnique = helper.Effect.Techniques["PointLight_Shadow_Illuminated"];
break;
case (ShadowType.Occluded):
helper.Effect.CurrentTechnique = helper.Effect.Techniques["PointLight_Shadow_Occluded"];
break;
default:
throw new NotImplementedException("Shadow Type does not exist: " + this.mShadowType);
}
foreach (var pass in helper.Effect.CurrentTechnique.Passes)
{
pass.Apply();
helper.BufferDraw();
}
helper.Effect.CurrentTechnique = helper.Effect.Techniques["PointLight_Light"];
foreach (var pass in helper.Effect.CurrentTechnique.Passes)
{
pass.Apply();
helper.DrawClippedFov(this.mPosition, this.mAngle, this.mRange * 2, this.mColor, this.mFov);
}
helper.Effect.CurrentTechnique = helper.Effect.Techniques["ClearTarget_Alpha"];
foreach (var pass in helper.Effect.CurrentTechnique.Passes)
{
pass.Apply();
helper.GraphicsDevice.DrawUserPrimitives <VertexPositionTexture>(PrimitiveType.TriangleStrip, KryptonRenderHelper.UnitQuad, 0, 2);
}
}