Orb effects

Assets/Scripts/Obstacles/TilemapActivation.cs

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+using System;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.Tilemaps;
+
+public class TilemapActivation : MonoBehaviour {
+
+	Tilemap _tilemap;
+	Collider2D _tilemapColliders;
+
+	[SerializeField] float disabledTransparency;
+	[SerializeField] float transitionDuration;
+
+	void Awake() {
+		_tilemap = GetComponent<Tilemap>();
+		_tilemapColliders = GetComponent<Collider2D>();
+		
+		_tilemapColliders.enabled = false;
+	}
+
+	public void ChangeTilemapState(bool enabled) {
+		_tilemapColliders.enabled = _enabled = enabled;
+	}
+
+	bool _enabled;
+	float _start;
+	void Update() {
+		float alpha = _enabled
+			? Mathf.Lerp(disabledTransparency, 1, (Time.time - _start) / transitionDuration)
+			: Mathf.Lerp(1, disabledTransparency, (Time.time - _start) / transitionDuration);
+
+		alpha = Mathf.Round(alpha * 5);
+		alpha /= 5f;
+
+		Color color = _tilemap.color;
+		color = new Color(color.r, color.g, color.b, alpha);
+		_tilemap.color = color;
+	}
+}

Assets/Scripts/Obstacles/TilemapActivation.cs.meta

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