game: add magnet pickup

scenes/pickups/pickup_base.gd

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+class_name PickupBase
+extends Node2D
+
+@export var value: float
+@export var max_speed: float = 100.0
+@export var min_speed: float = 10.0
+
+var player: Player
+
+func _ready() -> void:
+	player = get_tree().get_first_node_in_group(GlobalConst.GROUP_PLAYER)
+
+func _physics_process(delta: float) -> void:
+	if not player:
+		return
+	
+	var to_player = player.global_position - global_position
+	var dist = to_player.length()
+	var attract_radius = player.player_stats.get_final("pickup_radius", player.modifiers)
+	if dist < 4:
+		return
+	if dist < attract_radius:
+		var dir = to_player.normalized()
+		var speed = lerp(min_speed, max_speed, (attract_radius - dist) / attract_radius)
+		global_position += dir * speed * delta
+
+func pickup() -> void:
+	push_error("%s did not implement pickup()" % self)

scenes/pickups/pickup_base.gd.uid

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+uid://bo2oowrbsp2k8

scenes/pickups/pickup_base.tscn

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+[gd_scene load_steps=4 format=3 uid="uid://dr80h4envloce"]
+
+[ext_resource type="Script" uid="uid://bo2oowrbsp2k8" path="res://scenes/pickups/pickup_base.gd" id="1_oto2a"]
+
+[sub_resource type="PlaceholderTexture2D" id="PlaceholderTexture2D_rs1tx"]
+size = Vector2(10, 10)
+
+[sub_resource type="CircleShape2D" id="CircleShape2D_oto2a"]
+radius = 3.16228
+
+[node name="PickupBase" type="Node2D" groups=["pickup"]]
+script = ExtResource("1_oto2a")
+
+[node name="Sprite2D" type="Sprite2D" parent="."]
+position = Vector2(-1, 1)
+texture = SubResource("PlaceholderTexture2D_rs1tx")
+
+[node name="Area2D" type="Area2D" parent="."]
+collision_layer = 16
+collision_mask = 0
+monitoring = false
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="Area2D"]
+shape = SubResource("CircleShape2D_oto2a")

scenes/pickups/pickup_magnet.gd

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+class_name PickupMagnet
+extends PickupBase
+
+@export var duration: float = 15.0
+
+@onready var collision_shape_2d: CollisionShape2D = $Area2D/CollisionShape2D
+
+func pickup() -> void:
+	if not player:
+		push_error("pickup called on %s without player set" % self)
+		return
+
+	var mod: PlayerStatsModifier = PlayerStatsModifier.new()
+	mod.description = "Magnet massively increases pickup range for a limited amout of time"
+	mod.title = "Magnet"
+	mod.tex = GlobalConst.placeholder_tex
+	mod.internal_name = "magnet"
+	mod.rarity = GlobalConst.ModRarity.RARE
+	mod.stat_name = "pickup_radius"
+	mod.value = 5000.0
+	mod.type = PlayerStatsModifier.ModifierType.ABSOLUTE
+	player.modifiers.append(mod)
+
+	# Hide, and stop processing until timeout
+	visible = false
+	set_process(false)
+	set_physics_process(false)
+	collision_shape_2d.disabled = true
+
+	await get_tree().create_timer(duration).timeout
+	if is_instance_valid(player):
+		for i in range(player.modifiers.size()):
+			if player.modifiers[i].internal_name == mod.internal_name:
+				player.modifiers.remove_at(i)
+				break
+	queue_free()

scenes/pickups/pickup_magnet.gd.uid

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+uid://54b8m2gk20ji

scenes/pickups/pickup_magnet.tscn

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+[gd_scene load_steps=4 format=3 uid="uid://bbev8m5g0p3a3"]
+
+[ext_resource type="PackedScene" uid="uid://dr80h4envloce" path="res://scenes/pickups/pickup_base.tscn" id="1_hm4ld"]
+[ext_resource type="Script" uid="uid://54b8m2gk20ji" path="res://scenes/pickups/pickup_magnet.gd" id="2_00la4"]
+[ext_resource type="Texture2D" uid="uid://c80xxb85fehng" path="res://assets/sprites/magnet.png" id="2_yx0vp"]
+
+[node name="PickupMagnet" instance=ExtResource("1_hm4ld")]
+script = ExtResource("2_00la4")
+duration = 15.0
+
+[node name="Sprite2D" parent="." index="0"]
+texture = ExtResource("2_yx0vp")