Rewriting ships: Movement system

scenes/Ships/Modules/Engines/engine.tscn

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+[gd_scene load_steps=2 format=3 uid="uid://mw4kwxoeqch3"]
+
+[ext_resource type="Script" path="res://scripts/Ship/engine.gd" id="1_e4bt7"]
+
+[node name="Engine" type="Node2D"]
+script = ExtResource("1_e4bt7")

scenes/Ships/Modules/Hulls/hull.tscn

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+[gd_scene load_steps=3 format=3 uid="uid://bsu4eqwdfewwi"]
+
+[ext_resource type="Script" path="res://scripts/Ship/hull.gd" id="1_7nfg8"]
+[ext_resource type="Texture2D" uid="uid://beb76cssb3knp" path="res://sprites/ship.png" id="2_vhl4r"]
+
+[node name="Hull" type="RigidBody2D"]
+position = Vector2(0.5, 0)
+gravity_scale = 0.0
+angular_damp = 1.0
+script = ExtResource("1_7nfg8")
+
+[node name="Sprite" type="Sprite2D" parent="."]
+texture = ExtResource("2_vhl4r")
+
+[node name="Collision" type="CollisionPolygon2D" parent="."]
+polygon = PackedVector2Array(-45.5, 14, -45.5, 64, -44.5, 64, 81.5, 1, 81.5, -1, -44.5, -64, -45.5, -64, -45.5, -14, -67.5, -14, -81.5, -28, -82.5, -28, -82.5, 28, -81.5, 28, -67.5, 14)

scenes/Ships/player_ship.tscn

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+[gd_scene load_steps=5 format=3 uid="uid://dok3i8u5t1ka4"]
+
+[ext_resource type="PackedScene" uid="uid://bjkshql8ut6hk" path="res://scenes/Ships/ship.tscn" id="1_6x7bu"]
+[ext_resource type="Shader" path="res://shaders/ship.gdshader" id="2_dbojl"]
+[ext_resource type="Script" path="res://scripts/Ship/player_input_controller.gd" id="3_0e84a"]
+
+[sub_resource type="ShaderMaterial" id="ShaderMaterial_u1mh3"]
+resource_local_to_scene = true
+resource_name = "Shield Material"
+shader = ExtResource("2_dbojl")
+shader_parameter/wave_centers = PackedVector2Array()
+shader_parameter/wave_distances = PackedFloat32Array(-1)
+shader_parameter/color = Color(1, 0, 0, 1)
+shader_parameter/max_distance = 20.0
+shader_parameter/bublic_size = 20.0
+
+[node name="PlayerShip" instance=ExtResource("1_6x7bu")]
+material = SubResource("ShaderMaterial_u1mh3")
+
+[node name="InputController" type="Node2D" parent="." index="2"]
+script = ExtResource("3_0e84a")

scenes/Ships/ship.tscn

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+[gd_scene load_steps=5 format=3 uid="uid://bjkshql8ut6hk"]
+
+[ext_resource type="Material" uid="uid://cw0827vwv7pc1" path="res://shaders/materials/ship_material.tres" id="1_ibfis"]
+[ext_resource type="Script" path="res://scripts/Ship/ship.gd" id="2_n14ml"]
+[ext_resource type="PackedScene" uid="uid://bsu4eqwdfewwi" path="res://scenes/Ships/Modules/Hulls/hull.tscn" id="3_upgeg"]
+[ext_resource type="PackedScene" uid="uid://mw4kwxoeqch3" path="res://scenes/Ships/Modules/Engines/engine.tscn" id="4_adr14"]
+
+[node name="Ship" type="Node2D"]
+material = ExtResource("1_ibfis")
+script = ExtResource("2_n14ml")
+
+[node name="Hull" parent="." instance=ExtResource("3_upgeg")]
+
+[node name="Engine" parent="." instance=ExtResource("4_adr14")]

scripts/Ship/engine.gd

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+extends Node2D
+
+class_name ShipEngine
+
+# TODO: implement dashes
+# TODO: make particles and turbo
+
+## Engine ID to use with Game.get_module
+@export var id: String = "engine"
+## Acceleration speed of the engine
+@export var acceleration_speed: float = 50.0
+## Rotation speed of the engine
+@export var rotation_speed: float = 5000.0
+
+## Shortcut to get_parent()
+@onready var ship: Ship = get_parent()
+
+## Acceleration control variable
+var acceleration_axis: float = 0.0
+## Rotation control variable
+var rotation_axis: float = 0.0
+
+func _physics_process(_delta):
+	# apply movement and rotation
+	ship.hull.apply_central_force(Vector2.from_angle(ship.hull.rotation) * acceleration_speed * acceleration_axis)
+	ship.hull.apply_torque(rotation_speed * rotation_axis)

scripts/Ship/hull.gd

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+extends RigidBody2D
+
+class_name Hull
+
+## Shortcut to get_parent()
+@onready var ship: Ship = get_parent()
+
+## Hull ID to use with the Game.get_module func
+@export var id: String = "hull"
+
+## Max HP of the hull
+@export var max_hp: float = 30.0
+
+## Maximum amount of ammunition to be carried
+@export var max_ammunition: Dictionary = {
+	"n/a": 0, # don't change this k thx
+	"Laser Energy": 100,
+	"Rockets": 10,
+}
+
+## Current HP of the hull. If it reaches zero, it emits parent's destroyed signal
+var hp: float = max_hp:
+	set(new_hp):
+		if new_hp > 0:
+			hp = new_hp
+		else:
+			ship.destroyed.emit()

scripts/Ship/player_input_controller.gd

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+extends Node2D
+
+## Shortcut to get_parent()
+@onready var ship: Ship = get_parent()
+
+func _physics_process(_delta):
+	ship.engine.acceleration_axis = Input.get_axis("deccelerate", "accelerate")
+	ship.engine.rotation_axis = Input.get_axis("rotateleft", "rotateright")

scripts/Ship/ship.gd

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+extends Node2D
+
+class_name Ship
+
+# TODO: add weapons
+
+## Emits when hull hp reaches zero.
+signal destroyed
+
+## Reference to the engine module
+@onready var engine: ShipEngine = $Engine
+## Reference to the hull module
+@onready var hull: Hull = $Hull
+## Reference to the shield module
+@onready var shield: Shield = $Shield
+## Reference to primary weapon
+#@onready var primary_weapon: Weapon = $PrimaryWeapon
+## Reference to secondary weapon
+#@onready var secondary_weapon: Weapon = $SecondaryWeapon
+
+## Faction which this ship belongs to
+var faction : Game.Faction = Game.Faction.Player
+
+func _ready():
+	#shield.material = material
+	destroyed.connect(destroy)
+
+## Reset all required variables
+func destroy():
+	hull.hp = hull.max_hp
+	shield.capacity = shield.max_capacity
+
+## Swaps old hull with the new one
+func change_hull(new_hull_id: String):
+	var new_hull: Hull = Game.get_module(new_hull_id, 'hull').instantiate()
+	var old_hull: Hull = hull
+	add_child(new_hull)
+	hull = new_hull
+	hull.hp = old_hull.hp
+	get_tree().create_timer(0.05).timeout.connect(old_hull.queue_free)
+
+## Swaps old engine with the new one
+func change_engine(new_engine_id: String):
+	var new_engine: ShipEngine = Game.get_module(new_engine_id, 'engine').instantiate()
+	var old_engine: ShipEngine = engine
+	add_child(new_engine)
+	engine = new_engine
+	get_tree().create_timer(0.05).timeout.connect(old_engine.queue_free)
+
+## Swaps old shield with the new one
+func change_shield(new_shield_id: String):
+	var new_shield: Shield = Game.get_module(new_shield_id, 'shield').instantiate()
+	var old_shield: Shield = shield
+	add_child(new_shield)
+	shield = new_shield
+	get_tree().create_timer(0.05).timeout.connect(old_shield.queue_free)

sprites/ship.png.import

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+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://beb76cssb3knp"
+path="res://.godot/imported/ship.png-4d5e64b785005468aa74f7ca14df1341.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://sprites/ship.png"
+dest_files=["res://.godot/imported/ship.png-4d5e64b785005468aa74f7ca14df1341.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1