grenades, dynamic instantiation, state machine

Scripts/grenade.gd

@@ -0,0 +1,24 @@
+class_name Grenade extends RigidBody2D
+
+var timer = Timer.new()
+
+func _ready() -> void:
+	add_child(timer)
+	#how long
+	timer.wait_time = 2
+	#one time only
+	timer.one_shot = true
+	timer.connect("timeout", explode)
+	timer.start()
+	
+func explode()->void:
+	print("ima splode")
+	self.queue_free()
+	
+
+
+func _on_body_entered(body: Node) -> void:
+	print("Collision w Grenade!!")
+	if body.is_in_group("destructible"):
+		body.queue_free()
+		explode()

Scripts/grenade.gd.uid

@@ -0,0 +1 @@
+uid://bd8br3emm1nhb

Scripts/player.gd

@@ -1,6 +1,9 @@
 class_name Player extends CharacterBody2D
 @onready var right_cast: RayCast2D = $RightCast
 @onready var left_cast: RayCast2D = $LeftCast
+@onready var right_spawn: Marker2D = $RightSpawn
+@onready var left_spawn: Marker2D = $LeftSpawn
+@onready var player_graphic: AnimatedSprite2D = $PlayerGraphic
 
 
 const SPEED = 300.0
@@ -8,6 +11,8 @@ const JUMP_VELOCITY = -400.0
 var direction
 enum FaceDirection{LEFT,RIGHT}
 var facing:FaceDirection = FaceDirection.RIGHT
+enum PlayerState{IDLE,RUNNING}
+var current_player_state:PlayerState = PlayerState.IDLE
 
 var pushTarget:RigidBody2D
 var pushEnabled:bool = false
@@ -15,10 +20,16 @@ var pushEnabled:bool = false
 func _physics_process(delta: float) -> void:
 	handle_input()
 	handle_movement(delta)
+	handle_state()
+	handle_animation()
 	move_and_slide()
 	handle_collisions()
 			
 func handle_input()->void:
+	if Input.is_action_just_pressed("chuck"):
+		print("Chuck a grenade")
+		%SceneManager.makeGrenade(right_spawn.global_transform, 1)
+		
 	if Input.is_action_just_pressed("shove") and pushEnabled:
 		print("Shove somethin")
 		# determine what direction to shove the thing
@@ -38,8 +49,10 @@ func handle_input()->void:
 	direction = Input.get_axis("left", "right")
 	if direction<0:
 		facing = FaceDirection.LEFT
+		player_graphic.flip_h = true
 	if direction>0:
 		facing = FaceDirection.RIGHT
+		player_graphic.flip_h = false
 	
 func handle_movement(delta)->void:
 	# Add the gravity.
@@ -72,4 +85,21 @@ func handle_collisions()->void:
 		var c = get_slide_collision(i)
 		if c.get_collider() is RigidBody2D:
 			#deliver the impact
-			c.get_collider().apply_central_impulse(-c.get_normal() * 100)
+			if not c.get_collider() is Grenade:
+				c.get_collider().apply_central_impulse(-c.get_normal() * 100)
+
+func handle_state()->void:
+	match current_player_state:
+		PlayerState.IDLE when velocity.x !=0:
+			#change to running
+			current_player_state = PlayerState.RUNNING
+		PlayerState.RUNNING when velocity.x ==0:
+			current_player_state = PlayerState.IDLE
+			
+func handle_animation()->void:
+	match current_player_state:
+		PlayerState.IDLE:
+			player_graphic.play("idle")
+		PlayerState.RUNNING:
+			player_graphic.play("run")
+		

Scripts/scene_manager.gd

@@ -1,6 +1,7 @@
 class_name SceneManager extends Node2D
 @onready var game: Node2D = $".."
 @onready var crates: Node2D = $"../Crates"
+var grenade = preload("res://Scenes/grenade.tscn")
 
 func _ready() -> void:
 	print("Scene manager is ready!")
@@ -25,3 +26,11 @@ func updateCrates()->void:
 				_crateTotal +=1
 	print("Number of crates: "+str(_crateTotal))
 	game.totalCrates(_crateTotal)
+
+func makeGrenade(_grenadePosition, _grenadeDirection)->void:
+	print("SM wants to make a grenade")
+	var myGrenade:Grenade = grenade.instantiate()
+	owner.add_child(myGrenade)
+	myGrenade.transform = _grenadePosition
+	myGrenade.apply_central_impulse(Vector2(_grenadeDirection,-1)*200)
+