Add interactions for hydroponics

scripts/Player.gd

@@ -1,5 +1,6 @@
 extends KinematicBody
 
+const EPSILON = 0.0001
 const SPEED = 3.0
 
 export var inventory = { "ore" : 0 }
@@ -11,7 +12,8 @@ func _ready():
 func _physics_process(delta):
 	var input = Vector3(Input.get_axis("left", "right"), 0.0, Input.get_axis("up", "down"))
 	var motion = Plane.PLANE_XZ.project(get_viewport().get_camera().global_transform.basis.xform(input)).normalized() * SPEED
-	$DungMan.look_at(global_transform.origin - motion, Vector3.UP)
+	if motion.length_squared() > EPSILON:
+		$DungMan.look_at(global_transform.origin - motion, Vector3.UP)
 	move_and_slide(motion)
 
 func can_afford(item_name, item_amount):
@@ -46,7 +48,7 @@ func modify_inventory(item_name, item_amount):
 
 func _unhandled_input(event):
 	if event.is_action_pressed("action"):
-		for area in $TriggerVolume.get_overlapping_areas():
+		for area in $"%TriggerVolume".get_overlapping_areas():
 			if try_trigger_interact(area):
 				break
 		
@@ -58,6 +60,10 @@ func try_trigger_interact(area):
 	if not owner.has_method("on_player_interact"):
 		return false
 		
-	owner.on_player_interact(self)
+	var result = owner.on_player_interact(self)
+	if not result:
+		print("player failed to interacted with ", owner)
+		return
+
 	print("player interacted with ", owner)
 	return true

scripts/coin_machine.gd

@@ -1,16 +1,20 @@
 extends Area
 
 export var coins_required : int = 1
+export var enabled: bool = true
 
-signal coin_requirement_met;
+signal coin_requirement_met(player)
 
 func _ready():
 	assert(coins_required >= 0)
 	set_meta("owner", self)
 
-func on_player_interact(player):
+func on_player_interact(player) -> bool:
 	assert(player.has_method("modify_inventory"))
+	if not enabled: 
+		return false
 	if not player.modify_inventory("coins", -coins_required):
-		return
+		return false
 		
 	emit_signal("coin_requirement_met", player)
+	return true

scripts/hydroponics_station.gd

@@ -0,0 +1,26 @@
+extends Spatial
+
+export var grow_time: float = 2.0
+
+func _ready():
+	$grow_timer.wait_time = grow_time
+
+func _on_coin_machine_coin_requirement_met(player):
+	if $grow_timer.is_stopped():
+		$coin_machine.enabled = false
+		$grow_timer.start()
+
+func _on_Timer_timeout():
+	var yam = preload("res://scenes/item_pickup.tscn").instance()
+	yam.item_name = "yam"
+	yam.item_amount = 1
+	yam.connect("tree_exited", self, "_on_yam_item_tree_exited")
+	$MeshInstance/Yam.visible = true
+	add_child(yam)
+
+func _on_yam_item_tree_exited():
+	$coin_machine.enabled = true
+	$MeshInstance/Yam.visible = false
+
+func _process(delta):
+	$"%status_label".text = "%f" % $grow_timer.time_left

scripts/item_pickup.gd

@@ -0,0 +1,18 @@
+extends Area
+
+signal picked_up
+
+export var item_name: String
+export var item_amount: int = 1
+var player: Node
+
+func on_player_interact(p_player) -> bool:
+	monitorable = false
+	emit_signal("picked_up")
+	player = p_player
+	$AudioStreamPlayer.play()
+	return true
+
+func _on_AudioStreamPlayer_finished():
+	player.modify_inventory(item_name, item_amount)
+	queue_free()