diff --git a/main.go b/main.go
index 91e9ff4..c63c33f 100644
--- a/main.go
+++ b/main.go
@@ -58,27 +58,25 @@ func drawRec(rectangle *quad) {
 }
 
 func obstacleReflect(particlePos rl.Vector2, particleSpeed *rl.Vector2, obstacles *([MAXOBSTACLES](*quad)), particleRadius *float32, obstacleCount *int) {
+	var friction float32 = 0.9
+
 	for k := 0; k < *obstacleCount; k++ {
 		if rl.CheckCollisionCircleLine(particlePos, *particleRadius, (*((*obstacles)[k])).lu, (*((*obstacles)[k])).ru) {
 			var floorVector rl.Vector2 = rl.Vector2Subtract((*((*obstacles)[k])).ru, (*((*obstacles)[k])).lu)
 			var normalFloor rl.Vector2 = rl.Vector2Normalize(rl.Vector2Rotate(floorVector, -PI/2))
-			//var collisionAngle float32 = 2 * rl.Vector2Angle(rl.Vector2Negate(particleSpeed[i]), normalFloor)
-			*particleSpeed = rl.Vector2Reflect(*particleSpeed, normalFloor)
+			*particleSpeed = rl.Vector2Scale(rl.Vector2Reflect(*particleSpeed, normalFloor), friction)
 		} else if rl.CheckCollisionCircleLine(particlePos, *particleRadius, (*((*obstacles)[k])).ru, (*((*obstacles)[k])).rd) {
 			var floorVector rl.Vector2 = rl.Vector2Subtract((*((*obstacles)[k])).rd, (*((*obstacles)[k])).ru)
 			var normalFloor rl.Vector2 = rl.Vector2Normalize(rl.Vector2Rotate(floorVector, -PI/2))
-			//var collisionAngle float32 = 2 * rl.Vector2Angle(rl.Vector2Negate(particleSpeed[i]), normalFloor)
-			*particleSpeed = rl.Vector2Reflect(*particleSpeed, normalFloor)
+			*particleSpeed = rl.Vector2Scale(rl.Vector2Reflect(*particleSpeed, normalFloor), friction)
 		} else if rl.CheckCollisionCircleLine(particlePos, *particleRadius, (*((*obstacles)[k])).rd, (*((*obstacles)[k])).ld) {
 			var floorVector rl.Vector2 = rl.Vector2Subtract((*((*obstacles)[k])).ld, (*((*obstacles)[k])).rd)
 			var normalFloor rl.Vector2 = rl.Vector2Normalize(rl.Vector2Rotate(floorVector, -PI/2))
-			//var collisionAngle float32 = 2 * rl.Vector2Angle(rl.Vector2Negate(particleSpeed[i]), normalFloor)
-			*particleSpeed = rl.Vector2Reflect(*particleSpeed, normalFloor)
+			*particleSpeed = rl.Vector2Scale(rl.Vector2Reflect(*particleSpeed, normalFloor), friction)
 		} else if rl.CheckCollisionCircleLine(particlePos, *particleRadius, (*((*obstacles)[k])).ld, (*((*obstacles)[k])).lu) {
 			var floorVector rl.Vector2 = rl.Vector2Subtract((*((*obstacles)[k])).lu, (*((*obstacles)[k])).ld)
 			var normalFloor rl.Vector2 = rl.Vector2Normalize(rl.Vector2Rotate(floorVector, -PI/2))
-			//var collisionAngle float32 = 2 * rl.Vector2Angle(rl.Vector2Negate(particleSpeed[i]), normalFloor)
-			*particleSpeed = rl.Vector2Reflect(*particleSpeed, normalFloor)
+			*particleSpeed = rl.Vector2Scale(rl.Vector2Reflect(*particleSpeed, normalFloor), friction)
 		}
 	}
 }