refactor

systems/xp_system.gd

@@ -1,19 +1,48 @@
 extends Node
 
-const XP_PER_ENEMY: int = 3
-const XP_PER_BOSS: int = 30
-
 func _ready() -> void:
-  EventBus.entity_died.connect(_on_entity_died)
+  EventBus.boss_defeated.connect(_on_boss)
 
-func _on_entity_died(entity: Node) -> void:
-  if not entity or not is_instance_valid(entity):
+func _on_boss(boss: Node) -> void:
+  if not (multiplayer.is_server() or multiplayer.multiplayer_peer == null):
     return
-  if not entity.is_in_group("enemies"):
+  var amount: float = float(Stats.get_stat(boss, "xp_value", 100.0))
+  if GameState.dungeon_red:
+    amount *= 5.0
+  for player in get_tree().get_nodes_in_group("player"):
+    award(player, amount)
+
+func award_for_enemy(enemy: Node) -> void:
+  if not (multiplayer.is_server() or multiplayer.multiplayer_peer == null):
     return
-  var is_boss: bool = entity.is_in_group("boss")
-  var data_source: Node = BossData if is_boss else EnemyData
-  var scale_val: Variant = data_source.get_stat(entity, "scale")
-  var scale: float = scale_val if scale_val != null else 1.0
-  var base_xp: int = XP_PER_BOSS if is_boss else XP_PER_ENEMY
-  PlayerData.add_xp(int(base_xp * scale))
+  var amount: float = float(Stats.get_stat(enemy, "xp_value", 5.0))
+  for player in get_tree().get_nodes_in_group("player"):
+    var d: float = (player as Node3D).global_position.distance_to((enemy as Node3D).global_position)
+    if d <= 50.0:
+      award(player, amount)
+
+func award(player: Node, amount: float) -> void:
+  if not Stats.has(player):
+    return
+  var xp: float = float(Stats.get_stat(player, "xp", 0.0)) + amount
+  var to_next: float = float(Stats.get_stat(player, "xp_to_next", 50.0))
+  var level: int = int(Stats.get_stat(player, "level", 1))
+  while xp >= to_next:
+    xp -= to_next
+    level += 1
+    to_next = round(to_next * 1.6)
+    _level_up(player, level)
+  Stats.set_stat(player, "xp", xp)
+  Stats.set_stat(player, "xp_to_next", to_next)
+  Stats.set_stat(player, "level", level)
+  EventBus.xp_gained.emit(player, amount)
+
+func _level_up(player: Node, new_level: int) -> void:
+  for stat in [&"max_health", &"max_shield", &"speed"]:
+    var cur: float = float(Stats.get_stat(player, stat, 0.0))
+    Stats.set_stat(player, stat, cur * 1.4)
+  Stats.set_stat(player, "health", Stats.get_stat(player, "max_health"))
+  Stats.set_stat(player, "shield", Stats.get_stat(player, "max_shield"))
+  EventBus.level_up.emit(player, new_level)
+  EventBus.health_changed.emit(player, Stats.get_stat(player, "health"), Stats.get_stat(player, "max_health"))
+  EventBus.shield_changed.emit(player, Stats.get_stat(player, "shield"), Stats.get_stat(player, "max_shield"))