game: add bleed

scenes/weapons/weapon_base.gd

@@ -4,6 +4,8 @@ extends Node2D
 enum WeaponTag {
 	CAN_RETURN,
 	CAN_BLEED,
+	CAN_CHAIN,
+	CAN_FORK,
 }
 
 @export var attack_cd: float
@@ -12,11 +14,19 @@ enum WeaponTag {
 @export var attack_duration: float
 @export var attack_range: float
 @export var attack_crit_chance: float = 0.05
+@export var return_chance: float = 0.0
+@export var bleed_chance: float = 0.0
+@export var bleed_duration: float = 5.0
+@export var chain_chance: float = 0.0
 @export var tags: Array[String] = []
 @export var modifiers: Array[WeaponModBase] = []
 
 @onready var active_cd_timer: Timer = $ActiveCDTimer
 
+var _player: Player
+
+func _ready() -> void:
+	_player = get_tree().get_first_node_in_group(GlobalConst.GROUP_PLAYER)
 
 func _on_attack_cd_timer_timeout() -> void:
 	do_attack()
@@ -76,3 +86,19 @@ func has_property(key: String) -> bool:
 		if prop.name == key:
 			return true
 	return false
+
+func did_crit() -> bool:
+	var weapon_crit = get_calculated("attack_crit_chance")
+	var player_crit = _player.player_stats.get_final("crit_chance", _player.modifiers)
+
+	return randf() >= 1 - weapon_crit + player_crit
+
+func did_bleed() -> bool:
+	return randf() >= 1 - bleed_chance
+
+func base_damage() -> Array[Variant]:
+	var damage = get_calculated("attack_damage")
+	var is_crit := did_crit()
+	if is_crit:
+		damage *= _player.player_stats.get_final("crit_multiplier", _player.modifiers)
+	return [damage, is_crit]