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extends StaticBody2D
@onready var sprite_node = $Sprite2D
@onready var util = preload("res://scripts/util.gd")
@onready var game_stats_config = preload("res://resources/game_stats_config.tres")
@onready var _collision_shape = $Tower/CollisionShape2D
@onready var _visual_shape = $Tower/Line2D
var tower_data : Dictionary
var tower_key : String
var target : CharacterBody2D
var _idle_texture : Texture
var _attack_texture : Texture
func set_tower_stats(tower_index : int):
_collision_shape.shape = CircleShape2D.new()
tower_data = game_stats_config.defenders[tower_index].duplicate(true)
tower_key = tower_data["desc"]
_visual_shape.width = 1.0
_visual_shape.closed = true
_visual_shape.set_default_color(Color("#0f6b8a"))
reset_tower_range()
func reset_tower_range():
$Tower/CollisionShape2D.shape.radius = tower_data["range"]
_update_visual_circle()
func reset_tower_sprite():
_idle_texture = util.get_tile_texture(tower_data["sprite_idle"])
_attack_texture = util.get_tile_texture(tower_data["sprite_attacking"])
_idle_state()
func select_target() -> void:
var targets : Array = _find_targets()
# this is all to select the furthest target on the track
var curr : PathFollow2D = null
for i in targets:
if curr == null:
curr = i.get_node("../")
else:
if i.get_parent().get_progress() > curr.get_progress():
curr = i.get_node("../")
_update_state_machine(curr)
func _find_targets() -> Array:
var targets : Array = get_node("Tower").get_overlapping_bodies()
var tmp : Array = []
for i in targets:
if "Crawler" in i.name:
tmp.append(i)
return tmp
func _update_state_machine(curr : PathFollow2D) -> void:
if (curr == null):
target = null
_idle_state()
else:
target = curr.get_child(0)
_attack_state()
func _on_tower_body_entered(body: Node2D) -> void:
if target == null && "Crawler" in body.name:
select_target()
$FireTimer.start()
func _attack_state():
sprite_node.texture = _attack_texture
func _idle_state():
sprite_node.texture = _idle_texture
func apply_upgrade(effects: Dictionary):
for key in effects.keys():
if key in tower_data:
tower_data[key] = effects[key]
reset_tower_range()
reset_tower_sprite()
func _update_visual_circle() -> void:
var radius = _collision_shape.shape.radius
var points = []
var segments = 36 # Number of segments to approximate the circle
for i in range(segments):
var angle = (i / float(segments)) * 2 * PI
var x = radius * cos(angle)
var y = radius * sin(angle)
points.append(Vector2(x, y))
_visual_shape.points = points
func hide_collision() -> void:
_visual_shape.hide()
func show_collision() -> void:
_visual_shape.show()
# extending classes should override below
func _on_fire_timer_timeout() -> void:
pass
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