48 lines
1.5 KiB
C#
48 lines
1.5 KiB
C#
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using Microsoft.Xna.Framework;
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using Microsoft.Xna.Framework.Graphics;
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namespace Kav
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{
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public class DirectionalLightCollection
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{
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private readonly Vector3[] directions = new Vector3[4];
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private readonly Vector3[] colors = new Vector3[4];
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private readonly float[] intensities = new float[4];
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readonly EffectParameter lightDirectionsParam;
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readonly EffectParameter lightColorsParam;
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public DirectionalLightCollection(EffectParameter lightDirectionsParam, EffectParameter lightColorsParam)
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{
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this.lightDirectionsParam = lightDirectionsParam;
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this.lightColorsParam = lightColorsParam;
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}
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public DirectionalLight this[int i]
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{
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get
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{
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var color = colors[i] / intensities[i];
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return new DirectionalLight(
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directions[i],
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new Color(
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color.X,
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color.Y,
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color.Z,
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1f
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),
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intensities[i]
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);
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}
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set
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{
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directions[i] = value.Direction;
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colors[i] = value.Color.ToVector3() * value.Intensity;
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intensities[i] = value.Intensity;
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lightDirectionsParam.SetValue(directions);
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lightColorsParam.SetValue(colors);
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}
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}
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}
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}
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