Added generic item_generator scene. using it as the ore conveyor in dev_akshay for testing

scenes/dev-akshay.tscn

@@ -1,13 +1,12 @@
-[gd_scene load_steps=10 format=2]
+[gd_scene load_steps=9 format=2]
 
 [ext_resource path="res://scenes/player.tscn" type="PackedScene" id=1]
 [ext_resource path="res://assets/moonbase_whitebox/Moonbase_Whitebox.tscn" type="PackedScene" id=2]
 [ext_resource path="res://scenes/power_station.tscn" type="PackedScene" id=3]
 [ext_resource path="res://scenes/crafting_machine.tscn" type="PackedScene" id=4]
-[ext_resource path="res://scenes/item_holder.tscn" type="PackedScene" id=5]
+[ext_resource path="res://scenes/item_generator.tscn" type="PackedScene" id=5]
 [ext_resource path="res://item_types/ore.tres" type="Resource" id=6]
 [ext_resource path="res://recipes/all_recipes.tres" type="Resource" id=7]
-[ext_resource path="res://item_types/raw_yam.tres" type="Resource" id=8]
 [ext_resource path="res://scripts/main_camera.gd" type="Script" id=9]
 
 [node name="dev_akshay" type="Spatial"]
@@ -28,13 +27,9 @@ transform = Transform( 2, 0, 0, 0, 2, 0, 0, 0, 2, 0, 1, 0 )
 time_to_generate = 5.0
 
 [node name="crafting_machine" parent="." instance=ExtResource( 4 )]
-transform = Transform( -4.37114e-08, 0, -1, 0, 1, 0, 1, 0, -4.37114e-08, 0.974658, 0.0662553, -4.70336 )
+transform = Transform( -4.37114e-08, 0, -1, 0, 1, 0, 1, 0, -4.37114e-08, 2.40238, 0.0662553, -5.76668 )
 recipes = ExtResource( 7 )
 
-[node name="item_holder" parent="." instance=ExtResource( 5 )]
-transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, -4.01389, 0, -8.61939 )
-start_with_item = ExtResource( 6 )
-
-[node name="item_holder2" parent="." instance=ExtResource( 5 )]
-transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, -1.14543, 0, -8.61939 )
-start_with_item = ExtResource( 8 )
+[node name="item_generator" parent="." instance=ExtResource( 5 )]
+transform = Transform( -4.37114e-08, 0, 1, 0, 1, 0, -1, 0, -4.37114e-08, -6.07693, 0, 0.312646 )
+gen_item = ExtResource( 6 )

scenes/item_generator.tscn

@@ -0,0 +1,35 @@
+[gd_scene load_steps=5 format=2]
+
+[ext_resource path="res://scenes/coin_machine.tscn" type="PackedScene" id=1]
+[ext_resource path="res://scenes/item_holder.tscn" type="PackedScene" id=2]
+[ext_resource path="res://scripts/item_generator.gd" type="Script" id=3]
+
+[sub_resource type="CylinderMesh" id=1]
+
+[node name="item_generator" type="Spatial"]
+script = ExtResource( 3 )
+
+[node name="MeshInstance" type="MeshInstance" parent="."]
+mesh = SubResource( 1 )
+
+[node name="progress_text" type="Label3D" parent="MeshInstance"]
+unique_name_in_owner = true
+transform = Transform( 2, 0, 0, 0, 2, 0, 0, 0, 2, 0, 2.11515, 0 )
+modulate = Color( 0, 0, 0, 1 )
+text = "Progress: 20%"
+
+[node name="item_slot_1" parent="." groups=["item_slots"] instance=ExtResource( 2 )]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 2.5, 0, 0 )
+
+[node name="item_slot_2" parent="." groups=["item_slots"] instance=ExtResource( 2 )]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 5, 0, 0 )
+
+[node name="coin_machine" parent="." instance=ExtResource( 1 )]
+unique_name_in_owner = true
+
+[node name="gen_timer" type="Timer" parent="."]
+unique_name_in_owner = true
+one_shot = true
+
+[connection signal="coin_requirement_met" from="coin_machine" to="." method="_on_coin_machine_coin_requirement_met"]
+[connection signal="timeout" from="gen_timer" to="." method="_on_gen_timer_timeout"]

scenes/item_holder.tscn

@@ -4,7 +4,6 @@
 [ext_resource path="res://scripts/item_holder.gd" type="Script" id=2]
 
 [sub_resource type="SphereShape" id=4]
-radius = 1.4
 
 [node name="item_holder" type="Area"]
 script = ExtResource( 2 )

scripts/item_generator.gd

@@ -0,0 +1,66 @@
+extends Spatial
+
+export var gen_item : Resource
+export var gen_time : float = 5.0
+export var gen_count : int = 2
+
+var item_slots
+
+func _ready():
+	assert(gen_item != null)
+	item_slots = get_tree().get_nodes_in_group("item_slots")
+	assert(item_slots != null)
+	for item_slot in item_slots:
+		item_slot.connect("item_changed", self, "_on_item_slot_item_changed")
+	update_coin_machine_status()
+	$"%gen_timer".one_shot = true
+	$"%progress_text".visible = false
+	
+func update_progress_viz():
+	if not $"%progress_text".visible:
+		return
+	var time_left : float = $"%gen_timer".time_left
+	var time_passed : float = gen_time - time_left
+	var percent_complete : float = (time_passed / gen_time) * 100.0
+	$"%progress_text".text = "Progress: %.2f " % percent_complete
+	
+func _process(delta):
+	update_progress_viz()
+	
+func is_generating() -> bool:
+	return $"%gen_timer".time_left > 0
+
+func start_generation():
+	$"%progress_text".visible = true
+	$"%gen_timer".start(gen_time)
+	update_coin_machine_status()
+	for item_slot in item_slots:
+		item_slot.add_enabled = false
+
+func _on_coin_machine_coin_requirement_met(player):
+	assert(is_generator_ready())
+	start_generation()
+	
+func is_generator_ready():
+	for item_slot in item_slots:
+		if item_slot.has_item():
+			return false
+	return not is_generating()
+
+func update_coin_machine_status():
+	$"%coin_machine".enabled = is_generator_ready()
+
+#Note(asr): dynamically connect item_changed signal 
+#on all nodes in the "item_slots" group. See _ready()
+func _on_item_slot_item_changed(item):
+	update_coin_machine_status()
+
+func _on_gen_timer_timeout():
+	var count : int = 0
+	for item_slot in item_slots:
+		if count < gen_count:
+			item_slot.spawn_item(gen_item)
+			count += 1
+		item_slot.add_enabled = true
+	update_coin_machine_status()
+	$"%progress_text".visible = false