113 lines
3.7 KiB
GDScript
113 lines
3.7 KiB
GDScript
extends CharacterBody2D
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class_name EnemyBase
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# ---------------------------------------------------------------------------
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# Stats — override in derived enemy types
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# ---------------------------------------------------------------------------
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var max_health: float = 10.0
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var current_health: float = 10.0
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var speed: float = 60.0
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var contact_damage: float = 1.0
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var contact_cooldown: float = 0.8
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# ---------------------------------------------------------------------------
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# Internal state — shared across all enemies
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# ---------------------------------------------------------------------------
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const SPAWN_DELAY: float = 0.5
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var _contact_timer: float = 0.0
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var _flash_timer: float = 0.0
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var _slow_effects: Array[Dictionary] = [] # [{factor, timer}] - stacking slows
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var _spawn_timer: float = SPAWN_DELAY
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var _player: Node2D = null
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@onready var visual: Node2D = $Visual
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func _ready() -> void:
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add_to_group("enemies")
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$ContactArea.body_entered.connect(_on_contact_entered)
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func is_active() -> bool:
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return _spawn_timer <= 0.0
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func _tick_spawn_delay(delta: float) -> void:
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if _spawn_timer > 0.0:
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_spawn_timer -= delta
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# ---------------------------------------------------------------------------
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# Shared helpers — call from derived _physics_process as needed
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# ---------------------------------------------------------------------------
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func _find_player() -> void:
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if _player == null or not is_instance_valid(_player):
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_player = get_tree().get_first_node_in_group("player")
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func _tick_contact(delta: float) -> void:
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if _contact_timer > 0.0:
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_contact_timer -= delta
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if _contact_timer <= 0.0:
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_contact_timer = 0.0
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# Re-apply damage if player is still overlapping after cooldown
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for body in $ContactArea.get_overlapping_bodies():
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if body.is_in_group("player"):
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body.take_damage(contact_damage)
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_contact_timer = contact_cooldown
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break
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func _tick_flash(delta: float) -> void:
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if _flash_timer > 0.0:
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_flash_timer -= delta
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visual.modulate = Color(2.5, 2.5, 2.5)
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else:
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visual.modulate = Color(1.0, 1.0, 1.0)
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func apply_slow(duration: float, factor: float) -> void:
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# Stack slows by adding new effect - factors multiply together
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_slow_effects.append({"factor": factor, "timer": duration})
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func _tick_slow(delta: float) -> void:
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# Tick down all slow effects and remove expired ones
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var i := _slow_effects.size() - 1
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while i >= 0:
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_slow_effects[i]["timer"] -= delta
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if _slow_effects[i]["timer"] <= 0.0:
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_slow_effects.remove_at(i)
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i -= 1
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func get_slow_factor() -> float:
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# Multiply all active slow factors together
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var combined := 1.0
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for effect in _slow_effects:
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combined *= effect["factor"]
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return combined
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# ---------------------------------------------------------------------------
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# Damage / death
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# ---------------------------------------------------------------------------
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func take_damage(amount: float) -> void:
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current_health -= amount
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_flash_timer = 0.1
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AudioManager.play("enemy_hit")
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if current_health <= 0.0:
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_die()
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func _die() -> void:
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AudioManager.play("enemy_death")
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_spawn_drop()
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queue_free()
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func _spawn_drop() -> void:
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if not RunManager.run_active:
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return # No drops in practice/hub
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var orb = preload("res://scenes/enemies/currency_orb.tscn").instantiate()
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orb.position = (get_parent() as Node2D).to_local(global_position)
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get_parent().call_deferred("add_child", orb)
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# ---------------------------------------------------------------------------
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# Contact damage
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# ---------------------------------------------------------------------------
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func _on_contact_entered(body: Node) -> void:
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if not is_active():
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return
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if body.is_in_group("player") and _contact_timer == 0.0:
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body.take_damage(contact_damage)
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_contact_timer = contact_cooldown |