Polishing the sprites

Assets/Scripts/Blocks/BlockIce.cs

@@ -39,7 +39,9 @@ public class BlockIce : MonoBehaviour {
 				bomb.GetComponent<Bomb> ().timer = bombTimer;
 				bomb.GetComponent<Bomb> ().respawner = respawner;
 			}
-			respawner.enabled = true;
+			if (respawner != null) {
+				respawner.enabled = true;
+			}
 			Destroy (gameObject);
 		}
 

Assets/Scripts/Bomb.cs

@@ -3,19 +3,27 @@ using System.Collections.Generic;
 using UnityEngine;
 
 public class Bomb : MonoBehaviour {
+	Animator animator;
 	Rigidbody2D rigidBody;
 
 	public float timer;
 
 	GameObject explosion;
 	public GameObject iceBlockPrefab;
+	public Sprite deadBomb;
 
 	public Respawner respawner; //this can be respawned
 
 	float birthTime;
 
 	void Awake() {
+		animator = GetComponent<Animator> ();
 		rigidBody = GetComponent<Rigidbody2D> ();
+
+		if (timer < 0) {
+			animator.enabled = false;
+
+		}
 	}
 
 	void Start() {
@@ -53,7 +61,9 @@ public class Bomb : MonoBehaviour {
 			yield return new WaitForSeconds (delay);
 			explosion.SetActive (true);
 			transform.DetachChildren ();
-			respawner.enabled = true;
+			if (respawner != null) {
+				respawner.enabled = true;
+			}
 			Destroy (gameObject);
 		}
 	}

Assets/Scripts/Cannon.cs

@@ -0,0 +1,47 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class Cannon : MonoBehaviour {
+	SpriteRenderer spriteRenderer;
+	public enum Direction {
+		NORTH, EAST, SOUTH, WEST
+	};
+
+	public Direction direction;
+	public GameObject pelletPrefab;
+	public float delay;
+	float speed = 3f;
+
+	public Sprite sprite; //TMP, hopefully
+
+	void Awake() {
+		spriteRenderer = GetComponent<SpriteRenderer> ();
+		spriteRenderer.sprite = sprite;
+
+		StartCoroutine (FireOnTimer (delay));
+	}
+
+	IEnumerator FireOnTimer(float seconds) {
+		while(true) {
+			yield return new WaitForSeconds (seconds);
+			GameObject go = Instantiate (pelletPrefab);
+			go.transform.position = transform.position;
+
+			switch (direction) {
+			case Direction.NORTH:
+				go.GetComponent<Rigidbody2D> ().AddForce (new Vector2 (0, speed), ForceMode2D.Impulse);
+				break;
+			case Direction.EAST:
+				go.GetComponent<Rigidbody2D> ().AddForce (new Vector2 (speed, 0), ForceMode2D.Impulse);
+				break;
+			case Direction.SOUTH:
+				go.GetComponent<Rigidbody2D> ().AddForce (new Vector2 (0, -speed), ForceMode2D.Impulse);
+				break;
+			case Direction.WEST:
+				go.GetComponent<Rigidbody2D> ().AddForce (new Vector2 (-speed, 0), ForceMode2D.Impulse);
+				break;
+			}
+		}
+	}
+}

Assets/Scripts/Cannon.cs.meta

@@ -0,0 +1,13 @@
+fileFormatVersion: 2
+guid: 2156f7523fec09c4da77aaf24c77aabd
+timeCreated: 1524401895
+licenseType: Free
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: