From 344080e14d3da278f779dcf87755b34edf3fd48b Mon Sep 17 00:00:00 2001
From: a dinosaur <dino@a-dinosaur.com>
Date: Sat, 19 Aug 2023 01:38:20 +1000
Subject: [PATCH] krazy lites

---
 src/main/kotlin/Game.kt | 29 +++++++++++++++++++++++++----
 1 file changed, 25 insertions(+), 4 deletions(-)

diff --git a/src/main/kotlin/Game.kt b/src/main/kotlin/Game.kt
index 84ba94d..eecbb81 100644
--- a/src/main/kotlin/Game.kt
+++ b/src/main/kotlin/Game.kt
@@ -6,10 +6,7 @@ import com.badlogic.gdx.graphics.*
 import com.badlogic.gdx.graphics.g2d.BitmapFont
 import com.badlogic.gdx.graphics.g2d.SpriteBatch
 import com.badlogic.gdx.graphics.g3d.*
-import com.badlogic.gdx.graphics.g3d.attributes.ColorAttribute
-import com.badlogic.gdx.graphics.g3d.attributes.FloatAttribute
-import com.badlogic.gdx.graphics.g3d.attributes.IntAttribute
-import com.badlogic.gdx.graphics.g3d.attributes.TextureAttribute
+import com.badlogic.gdx.graphics.g3d.attributes.*
 import com.badlogic.gdx.graphics.g3d.environment.DirectionalLight
 import com.badlogic.gdx.graphics.g3d.environment.PointLight
 import com.badlogic.gdx.graphics.g3d.model.data.*
@@ -35,6 +32,7 @@ class Game: ApplicationAdapter()
 
 	private lateinit var colin: Colin
 	private var jolkRot = 0.0f
+	private var lightTheta = 0.0f
 
 	private lateinit var cubeInstance: ModelInstance
 	private lateinit var floorInstance: ModelInstance
@@ -205,6 +203,7 @@ class Game: ApplicationAdapter()
 	{
 		colin.update(deltaTime)
 
+		lightTheta += deltaTime
 		jolkRot += 15.0f * deltaTime
 	}
 
@@ -215,6 +214,28 @@ class Game: ApplicationAdapter()
 
 		ScreenUtils.clear(XnaColor.CornflowerBlue, true)
 
+		env.get(PointLightsAttribute.Type)?.let { it as PointLightsAttribute
+			var thetaa = lightTheta * 6.0f * 0.12f
+			var thetab = lightTheta * 6.0f * 0.011f
+			var thetac = lightTheta * 6.0f * 0.056f
+
+			for (light in it.lights)
+			{
+				val x =  4.0f  + 6.0f  * MathUtils.cos(thetaa)
+				val z = -6.0f  + 3.0f  * MathUtils.sin(thetaa * 2.0f)
+				val y =  0.33f + 0.33f * MathUtils.sin(thetab)
+				val i =  3.1f  + 1.53f * MathUtils.cos(thetac)
+
+				val spacing = 0.5f * MathUtils.PI * (2.0f / 3.0f)
+				thetaa += spacing
+				thetab += spacing * 0.98f
+				thetac += spacing * 0.5566f
+
+				light.setPosition(x, y, z)
+				light.setIntensity(i)
+			}
+		}
+
 		val jolkPos = Vector3(0.0f, 1.0f + MathUtils.sin(jolkRot * 0.25f) * 0.25f, -4.0f)
 		val world = Matrix4()
 			.setTranslation(jolkPos)