Three kinds of bullets are firing, bomb breaks the wall

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+  m_Size: {x: 0.16, y: 0.16}
+  m_AdaptiveModeThreshold: 0.5
+  m_SpriteTileMode: 0
+  m_WasSpriteAssigned: 1
+  m_MaskInteraction: 0

Assets/Prefabs/Wind_Pellet.prefab.meta

@@ -0,0 +1,10 @@
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+licenseType: Free
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Assets/Scripts/BlockCracked.cs

@@ -0,0 +1,13 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class BlockCracked : MonoBehaviour {
+	void OnCollisionEnter2D(Collision2D collision) {
+		//TODO: use durability class?
+		ExplosionDamager exp = collision.gameObject.GetComponent<ExplosionDamager> ();
+		if (exp != null) {
+			Destroy (gameObject);
+		}
+	}
+}

Assets/Scripts/BlockCracked.cs.meta

@@ -0,0 +1,13 @@
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Assets/Scripts/Bomb.cs

@@ -0,0 +1,22 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class Bomb : MonoBehaviour {
+	public float timer;
+
+	GameObject explosion;
+
+	void Awake() {
+		StartCoroutine (ExplodeAfter (timer));
+
+		explosion = transform.GetChild (0).gameObject;
+	}
+
+	IEnumerator ExplodeAfter(float delay) {
+		yield return new WaitForSeconds (delay);
+		explosion.SetActive (true);
+		transform.DetachChildren ();
+		Destroy (gameObject);
+	}
+}

Assets/Scripts/Bomb.cs.meta

@@ -0,0 +1,13 @@
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Assets/Scripts/Damagers.meta

@@ -0,0 +1,10 @@
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Assets/Scripts/Damagers/DamagerBase.cs

@@ -0,0 +1,5 @@
+using UnityEngine;
+
+public class DamagerBase : MonoBehaviour {
+	public int value = 1;
+}

Assets/Scripts/Damagers/DamagerBase.cs.meta

@@ -0,0 +1,13 @@
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Assets/Scripts/Damagers/ExplosionDamager.cs

@@ -0,0 +1,15 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class ExplosionDamager : DamagerBase {
+	//simply causes damage and then disappears
+	void Awake() {
+		StartCoroutine (DestroyAfter (0.5f));
+	}
+
+	IEnumerator DestroyAfter(float delay) {
+		yield return new WaitForSeconds (delay);
+		Destroy (gameObject);
+	}
+}

Assets/Scripts/Damagers/ExplosionDamager.cs.meta

@@ -0,0 +1,13 @@
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Assets/Scripts/Damagers/FireDamager.cs

@@ -0,0 +1,12 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+//shootable
+public class FireDamager : DamagerBase {
+	void OnTriggerEnter2D(Collider2D collider) {
+		if (collider.gameObject.GetComponent<FireDamager> () == null) { //pass through other instances of self
+			Destroy (gameObject);
+		}
+	}
+}

Assets/Scripts/Damagers/FireDamager.cs.meta

@@ -0,0 +1,13 @@
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Assets/Scripts/Damagers/IceDamager.cs

@@ -0,0 +1,12 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+//shootable
+public class IceDamager : DamagerBase {
+	void OnTriggerEnter2D(Collider2D collider) {
+		if (collider.gameObject.GetComponent<IceDamager> () == null) { //pass through other instances of self
+			Destroy (gameObject);
+		}
+	}
+}

Assets/Scripts/Damagers/IceDamager.cs.meta

@@ -0,0 +1,13 @@
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Assets/Scripts/Damagers/WindDamager.cs

@@ -0,0 +1,12 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+//shootable
+public class WindDamager : DamagerBase {
+	void OnTriggerEnter2D(Collider2D collider) {
+		if (collider.gameObject.GetComponent<WindDamager> () == null) { //pass through other instances of self
+			Destroy (gameObject);
+		}
+	}
+}

Assets/Scripts/Damagers/WindDamager.cs.meta

@@ -0,0 +1,13 @@
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Assets/Scripts/Player.cs

@@ -3,13 +3,26 @@ using System.Collections.Generic;
 using UnityEngine;
 
 public class Player : MonoBehaviour {
+	public enum Mode {
+		FIRE, ICE, WIND
+	};
+
 	Animator animator;
 	Rigidbody2D rigidBody;
 
+	//movement
 	float speed;
 	Vector2 deltaForce;
-	Vector2 lastDirection;
+	Vector2 lastDirection = new Vector2(0, -1);
+
+	//attacking
 	bool isShooting;
+	float lastAttack = float.NegativeInfinity;
+	const float attackDelay = 0.5f;
+	Mode mode = Mode.FIRE;
+	public GameObject firePelletPrefab;
+	public GameObject icePelletPrefab;
+	public GameObject windPelletPrefab;
 
 	void Awake() {
 		animator = GetComponent<Animator> ();
@@ -21,6 +34,7 @@ public class Player : MonoBehaviour {
 	void Update() {
 		HandleInput ();
 		Move ();
+		Attack ();
 		SendAnimationInfo ();
 	}
 
@@ -38,6 +52,10 @@ public class Player : MonoBehaviour {
 
 		//calculate if shooting
 		isShooting = Input.GetButton ("Attack");
+
+		if (Input.GetButtonDown("Switch")) {
+			mode += 1;
+		}
 	}
 
 	void Move() {
@@ -47,9 +65,53 @@ public class Player : MonoBehaviour {
 		rigidBody.AddForce (impulse, ForceMode2D.Impulse);
 	}
 
+	void Attack() {
+		if (Time.time - lastAttack > attackDelay && isShooting) {
+			lastAttack = Time.time;
+			GameObject pellet = null;
+
+			switch (mode) {
+			case Mode.FIRE:
+				pellet = Instantiate (firePelletPrefab);
+				break;
+			case Mode.ICE:
+				pellet = Instantiate (icePelletPrefab);
+				break;
+			case Mode.WIND:
+				pellet = Instantiate (windPelletPrefab);
+				break;
+			}
+
+			//HACK-ish
+			Vector2 distance = GetShootingPoint();
+			pellet.transform.position = new Vector2(transform.position.x + distance.x, transform.position.y + distance.y);
+			pellet.GetComponent<Rigidbody2D> ().velocity = Vector2.zero;
+			pellet.GetComponent<Rigidbody2D> ().AddForce (lastDirection.normalized * 2, ForceMode2D.Impulse);
+		}
+
+		if (!isShooting) {
+			lastAttack = float.NegativeInfinity;
+		}
+	}
+
 	void SendAnimationInfo() {
 		animator.SetFloat ("xSpeed", lastDirection.x);
 		animator.SetFloat ("ySpeed", lastDirection.y);
 		animator.SetBool ("isShooting", isShooting);
 	}
+
+	//utilities
+	Vector2 GetShootingPoint() {
+		Vector2 point = lastDirection.normalized;
+
+		if (Mathf.Abs (point.x) == Mathf.Abs (point.y)) {
+			point *= 0.26f; //diagonal
+		} else if (Mathf.Abs (point.x) < Mathf.Abs (point.y)) {
+			point *= 0.23f; //vertical
+		} else {
+			point *= 0.2f; //horizontal
+		}
+
+		return point;
+	}
 }