Properly implement the Hammer item (#599)

* Properly implement the Hammer item

* Update Boo.gd

* Update LongFirebar.tscn

Scripts/Classes/Components/EnemyPlayerDetection.gd

@@ -8,18 +8,26 @@ extends Node
 signal player_hit(player: Player)
 signal player_stomped_on(player: Player)
 signal invincible_player_hit(player: Player)
+signal hammer_player_hit(player: Player)
 
 func _ready() -> void:
 	hitbox.area_entered.connect(area_entered)
 
 func area_entered(area: Area2D) -> void:
 	if area.owner is Player:
-		player_entered(area.owner)
+		if area.name == "HammerHitbox":
+			hammer_entered(area.owner)
+		else:
+			player_entered(area.owner)
 
 func player_entered(player: Player) -> void:
-	if player.is_invincible or player.has_hammer:
+	if player.is_invincible:
 		invincible_player_hit.emit(player)
 	elif (player.velocity.y >= 15 or (player.global_position.y + height < owner.global_position.y)) and player.in_water == false:
 		player_stomped_on.emit(player)
 	else:
 		player_hit.emit(player)
+
+func hammer_entered(player: Player) -> void:
+	if player.has_hammer:
+		hammer_player_hit.emit(player)

Scripts/Classes/Entities/Enemies/Barrel.gd

@@ -14,6 +14,10 @@ func die() -> void:
 
 func die_from_object(_node: Node2D) -> void:
 	destroy()
+	
+func die_from_hammer(_node: Node2D) -> void:
+	AudioManager.play_sfx("hammer_hit", global_position)
+	destroy()
 
 func summon_particle() -> void:
 	var node = BARREL_DESTRUCTION_PARTICLE.instantiate()

Scripts/Classes/Entities/Enemies/Boo.gd

@@ -33,7 +33,7 @@ func handle_movement(delta: float) -> void:
 
 func on_area_entered(area: Area2D) -> void:
 	if area.owner is Player:
-		if area.owner.is_invincible:
+		if area.owner.is_invincible or area.name == "HammerHitbox":
 			die()
 		else:
 			area.owner.damage()

Scripts/Classes/Entities/Enemies/BooBuddies.gd

@@ -11,7 +11,7 @@ func _physics_process(delta: float) -> void:
 		i.get_node("Sprite").scale.x = sign(get_tree().get_first_node_in_group("Players").global_position.x + 1 - i.global_position.x)
 	
 func on_area_entered(area: Area2D) -> void:
-	if area.owner is Player:
+	if area.owner is Player and area.name != "HammerHitbox":
 		area.owner.damage()
 
 func flag_die() -> void:

Scripts/Classes/Entities/Enemies/BowserFlame.gd

@@ -22,7 +22,7 @@ func flag_die() -> void:
 	queue_free()
 
 func on_area_entered(area: Area2D) -> void:
-	if area.owner is Player:
+	if area.owner is Player and area.name != "HammerHitbox":
 		area.owner.damage()
 
 func play_sfx() -> void:

Scripts/Classes/Entities/Enemies/Podoboo.gd

@@ -53,3 +53,8 @@ func flag_die() -> void:
 func die() -> void:
 	killed.emit()
 	queue_free()
+
+func die_from_hammer() -> void:
+	AudioManager.play_sfx("hammer_hit", global_position)
+	killed.emit()
+	queue_free()

Scripts/Classes/Entities/Enemy.gd

@@ -37,3 +37,12 @@ func flag_die() -> void:
 			Global.score += 500
 			if score_note_adder != null:
 				score_note_adder.spawn_note(500)
+
+func die_from_hammer(obj: Node2D) -> void:
+	var dir = sign(global_position.x - obj.global_position.x)
+	if dir == 0:
+		dir = [-1, 1].pick_random()
+	DiscoLevel.combo_amount += 1
+	AudioManager.play_sfx("hammer_hit", global_position)
+	killed.emit(dir)
+	queue_free()

Scripts/Classes/Entities/Items/Hammer.gd

@@ -21,5 +21,5 @@ func flag_die() -> void:
 	queue_free()
 
 func on_area_entered(area: Area2D) -> void:
-	if area.owner is Player:
+	if area.owner is Player and area.name != "HammerHitbox":
 		area.owner.damage()

Scripts/Classes/Entities/Objects/Explosion.gd

@@ -14,5 +14,5 @@ func on_body_entered(body: Node2D) -> void:
 
 
 func on_area_entered(area: Area2D) -> void:
-	if area.owner is Player:
+	if area.owner is Player and area.name != "HammerHitbox":
 		area.owner.damage()

Scripts/Classes/Entities/Objects/SpikeBall.gd

@@ -43,7 +43,7 @@ func on_area_entered(area: Area2D) -> void:
 		if area.owner.has_node("ShellDetection"):
 			area.owner.die_from_object(self)
 	elif area.owner is Player:
-		if area.owner.is_invincible:
+		if area.owner.is_invincible or area.name == "HammerHitbox":
 			destroy()
 		else:
 			area.owner.damage()

Scripts/Classes/Entities/Player.gd

@@ -330,6 +330,7 @@ func _process(delta: float) -> void:
 	if is_invincible:
 		DiscoLevel.combo_meter = 100
 	%Hammer.visible = has_hammer
+	%HammerHitbox.collision_layer = has_hammer
 
 func apply_gravity(delta: float) -> void:
 	if in_water or flight_meter > 0:
@@ -893,9 +894,6 @@ func hammer_get() -> void:
 	$HammerTimer.start()
 	AudioManager.set_music_override(AudioManager.MUSIC_OVERRIDES.HAMMER, 0, false)
 
-func on_hammer_area_entered(area: Area2D) -> void:
-	pass
-
 func wing_get() -> void:
 	AudioManager.set_music_override(AudioManager.MUSIC_OVERRIDES.WING, 0, false, false)
 	flight_meter = 10

Scripts/Classes/Singletons/AudioManager.gd

@@ -38,6 +38,7 @@ const DEFAULT_SFX_LIBRARY := {
 	"firework": "res://Assets/Audio/SFX/Firework.wav",
 	"timer_beep": "res://Assets/Audio/SFX/TimerBeep.wav",
 	"hachisuke": "res://Assets/Audio/SFX/Hachisuke.wav",
+	"hammer_hit": "res://Assets/Audio/SFX/HammerHit.wav",
 	"burner": "res://Assets/Audio/SFX/Burner.wav",
 	"rank_up_1": "res://Assets/Audio/SFX/RankUpCBA.wav",
 	"rank_up_2": "res://Assets/Audio/SFX/RankUpSP.wav",