From d0944508591e18cce7872182aae4c4985ebdd442 Mon Sep 17 00:00:00 2001
From: any <git@anyary.de>
Date: Mon, 11 May 2026 23:15:36 +0200
Subject: [PATCH] Regenbogen balls und darkmode

---
 main.go | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/main.go b/main.go
index dca195d..838ed37 100644
--- a/main.go
+++ b/main.go
@@ -1,6 +1,7 @@
 package main
 
 import (
+	"image/color"
 	"sync"
 	"time"
 
@@ -81,10 +82,10 @@ func obstacleReflect(particlePos rl.Vector2, particleSpeed *rl.Vector2, obstacle
 	}
 }
 
-func physics(particleList *[MAXPOINTS]rl.Vector2, particleCount int, particleListKey *sync.Mutex, obstacles *([MAXOBSTACLES](*quad)), particleRadius *float32, obstacleCount *int) {
+func physics(particleList *[MAXPOINTS]rl.Vector2, particleCount int, particleListKey *sync.Mutex, obstacles *([MAXOBSTACLES](*quad)), particleRadius *float32, obstacleCount *int, particleColor *[MAXPOINTS]rl.Color) {
 	var particleSpeed = [MAXPOINTS]rl.Vector2{{0, -300}} //pixel pro Sekunde
 	var timeIncrement float64 = 0.03
-	var gravity rl.Vector2 = rl.Vector2{0, 0 * 300}
+	var gravity rl.Vector2 = rl.Vector2{0, 300}
 	var newParticleList [MAXPOINTS]rl.Vector2
 	var newParticleSpeed [MAXPOINTS]rl.Vector2
 	var particleFriction float32 = 0.65
@@ -92,6 +93,7 @@ func physics(particleList *[MAXPOINTS]rl.Vector2, particleCount int, particleLis
 	var masse float32 = 0.1
 	var electrostaticRange float32 = 50 //range wiie weit die kraftwirkung ist
 	var electroStrength float32 = 4000
+	var hue = [MAXPOINTS]float32{}
 
 	for j := float64(0); j < 50; {
 		var startTime time.Time = time.Now()
@@ -137,6 +139,9 @@ func physics(particleList *[MAXPOINTS]rl.Vector2, particleCount int, particleLis
 
 				}
 
+				hue[i]++
+				(*particleColor)[i] = rl.ColorFromHSV(hue[i], 1.0, 1.0)
+
 				obstacleReflect(currentPositions[i], &particleSpeed[i], obstacles, particleRadius, obstacleCount)
 
 				newParticleList[i] = rl.Vector2Add(
@@ -188,7 +193,8 @@ func main() {
 	var particleRowCount int = 40
 	var particleCount int = particleRowCount * particleColumnCount
 	var particleRadius float32 = 5
-	var particleColor rl.Color = rl.Black
+	var particleColorList [MAXPOINTS]rl.Color
+	particleColor := &particleColorList
 	var particleListKey sync.Mutex
 	var obstacleCount int = 0
 
@@ -212,16 +218,16 @@ func main() {
 	obstacles[3] = &ceiling
 	obstacleCount++
 
-	go physics(&particleList, particleCount, &particleListKey, &obstacles, &particleRadius, &obstacleCount)
+	go physics(&particleList, particleCount, &particleListKey, &obstacles, &particleRadius, &obstacleCount, particleColor)
 
 	for !rl.WindowShouldClose() {
-		rl.ClearBackground(rl.RayWhite)
+		rl.ClearBackground(color.RGBA{15, 16, 23, 1})
 
 		particleListKey.Lock()
 
 		rl.BeginDrawing()
 		for i := 0; i < particleCount; i++ {
-			rl.DrawCircleV(particleList[i], particleRadius, particleColor)
+			rl.DrawCircleV(particleList[i], particleRadius, (*particleColor)[i])
 		}
 
 		particleListKey.Unlock()