Basic level bus

project.godot

@@ -17,20 +17,27 @@ warnings/check_angle_interpolation_type_conflicting=false
 
 config/name="Liberation of the Neighbourville"
 config/version="0.3.0"
-run/main_scene="uid://bfstrli64u23y"
+config/features=PackedStringArray("4.4", "Forward Plus")
-config/features=PackedStringArray("4.4", "C#", "Forward Plus")
 config/icon="res://icon.png"
 config/windows_native_icon="res://icon.ico"
 
+[autoload]
+
+LevelEventBus="*res://scripts/level_event_bus.gd"
+
 [display]
 
 window/size/viewport_width=600
 window/size/viewport_height=400
 window/stretch/mode="canvas_items"
 
+[dotnet]
+
+project/assembly_name="Liberation of the Neighbourville"
+
 [editor_plugins]
 
-enabled=PackedStringArray("res://addons/floatmodifiers/plugin.cfg", "res://addons/pvzadventure/plugin.cfg")
+enabled=PackedStringArray()
 
 [filesystem]
 

scripts/entities/entity.gd

@@ -0,0 +1,89 @@
+extends Node
+
+## Base class for all hp-based objects
+class_name Entity
+
+## Maximum health points of an entity. Any heal cannot exceed this value
+@export var max_hp : float
+## Current amount of health points of an entity. Cannot be below 0 or [code]max_hp[/code]
+var hp : float = max_hp
+
+
+signal damaged
+## Emitted when damage is taken
+signal damage_taken(context : DamageTakenContext)
+## Emitted when entity is healed
+signal healed(context : HealedContext)
+## Emitted on every health points change
+signal hp_changed(context : HPChangedContext)
+## Emitted when kill is requested
+signal killed(context : KilledContext)
+
+## Properly deal damage to entity
+func deal_damage(amount : float, source : Entity):
+	var context = DamageTakenContext.new()
+	context.source = source
+	context.target = self
+	context.amount = amount
+	damage_taken.emit(context)
+	
+	var delta_context = HPChangedContext.new()
+	delta_context.source = source
+	delta_context.target = self
+	delta_context.delta = -amount
+	hp_changed.emit(delta_context)
+	
+	hp -= amount
+	if hp <= 0:
+		hp = 0
+		kill(source)
+
+
+## Properly heal entity
+func heal(amount : float, source : Entity):
+	var context = HealedContext.new()
+	context.source = source
+	context.target = self
+	context.amount = amount
+	healed.emit(context)
+	
+	var delta_context = HPChangedContext.new()
+	delta_context.source = source
+	delta_context.target = self
+	delta_context.delta = amount
+	hp_changed.emit(delta_context)
+	
+	hp += amount
+	if hp > max_hp:
+		hp = max_hp
+
+
+## Invoked when an entity is killed by damage. 
+func kill(source : Entity):
+	var context = KilledContext.new()
+	context.source = source
+	context.target = self
+	killed.emit(context)
+	
+	deconstruct()
+
+
+## Method used to properly deconstruct entity
+func deconstruct():
+	queue_free()
+
+class DamageTakenContext:
+	var target : Entity
+	var source : Entity
+	var amount : float
+class HealedContext:
+	var target : Entity
+	var source : Entity
+	var amount : float
+class KilledContext:
+	var target : Entity
+	var source : Entity
+class HPChangedContext:
+	var target : Entity
+	var source : Entity
+	var delta : float

scripts/entities/entity.gd.uid

@@ -0,0 +1 @@
+uid://bwdvaov8sse4k

scripts/level_event_bus.gd

@@ -0,0 +1,64 @@
+extends Node
+
+## Event bus for levels in Liberation Of Neighborville
+
+class_name LevelSignals
+
+#region Entity
+
+## Called for every entity that enters game
+signal entity_created(entity : Entity)
+## Called for every entity that exits game
+signal entity_killed(context : Entity.KilledContext)
+## Called for every entity that gets damage
+signal entity_hp_changed(context : Entity.HPChangedContext)
+
+#endregion
+
+#region Seedpacket manipulation
+
+## Called when player selects EntityResource
+signal packet_selected(packet : EntityResource)
+
+## Called when player selects EntityResource during game phase
+signal packet_selected_during_game(packet : EntityResource)
+
+## Called when something requests EntityResource to be added to hotbar collection
+signal requested_packet_add
+
+## Called when something requests EntityResource to be deleted from hotbar collection
+signal requested_packet_remove
+
+## Called when selected packets are updated
+signal hotbar_packets_update(selected : Array[EntityResource])
+#endregion
+
+#region Level Running
+## Called when huge wave is incoming, yet has not come
+signal huge_wave_coming
+
+## Called when huge wave has come
+signal huge_wave
+
+## Called when final wave has come
+signal final_wave 
+
+## Called when game is progressing through level stages
+signal state_changed(state : LevelStates)
+
+## Called when something requests state to advance
+signal state_advance_requested
+#endregion
+
+
+## Possible states of level 
+enum LevelStates {
+	## The game is during plant pick stage
+	PlantPick,
+	## The game is not yet started
+	Pregame,
+	## Game started
+	Game,
+	## Game ended
+	Postgame
+}

scripts/level_event_bus.gd.uid

@@ -0,0 +1 @@
+uid://dmc03tudqcqj0

scripts/resources/entity_resource.gd

@@ -0,0 +1,3 @@
+extends Resource
+
+class_name EntityResource

scripts/resources/entity_resource.gd.uid

@@ -0,0 +1 @@
+uid://dtjdfji87kybn