game: animate hp bars

scenes/managers/ui/debug_ui.gd

@@ -47,9 +47,9 @@ func update_debug_stats() -> void:
 	for stat in debug_stats:
 		# Create margin container
 		var mc: MarginContainer = MarginContainer.new()
-		mc.add_theme_constant_override("margin_top", 10)
+		mc.add_theme_constant_override("margin_top", 2)
 		mc.add_theme_constant_override("margin_left", 20)
-		mc.add_theme_constant_override("margin_bottom", 10)
+		mc.add_theme_constant_override("margin_bottom", 2)
 		mc.add_theme_constant_override("margin_right", 20)
 		stats_container_vbox.add_child(mc)
 

scenes/managers/ui/player_ui.gd

@@ -4,9 +4,42 @@ extends Control
 @onready var hp_bar: ProgressBar = $CenterContainer/VBoxContainer/ProgressBar
 @onready var elapsed_label: Label = $CenterContainer/VBoxContainer/ElapsedLabel
 
+const ANIM_SPEED = 4.0
+const TRESHOLD = 1
 
-func set_hp(value: float):
+var wanted_hp_value: float
-	hp_bar.value = value
+var wanted_hp_max: float
+
+var player: Player
+
+
+func _ready() -> void:
+	player = get_tree().get_first_node_in_group("player")
+	if player:
+		hp_bar.value = player.player_stats.current_health
+		hp_bar.max_value = player.player_stats.max_health
+
+
+func update_hp():
+	if not player:
+		push_error("cant update hp, no player found")
+	var current_hp = player.player_stats.get_final("current_health", player.modifiers)
+	var max_hp = player.player_stats.get_final("max_health", player.modifiers)
+	wanted_hp_value = current_hp
+	wanted_hp_max = max_hp
+
+
+func _process(delta: float) -> void:
+	if wanted_hp_max != hp_bar.max_value:
+		print_debug("wanted: %f-%f" % [wanted_hp_max, hp_bar.max_value])
+		hp_bar.max_value = lerpf(hp_bar.max_value, wanted_hp_max, ANIM_SPEED * delta)
+		if abs(hp_bar.max_value - wanted_hp_max) < TRESHOLD:
+			hp_bar.max_value = wanted_hp_max
+	if wanted_hp_value != hp_bar.value:
+		print_debug("current: %f-%f" % [wanted_hp_value, hp_bar.value])
+		hp_bar.value = lerpf(hp_bar.value, wanted_hp_value, ANIM_SPEED * delta)
+		if abs(hp_bar.value - wanted_hp_value) < TRESHOLD:
+			hp_bar.value = wanted_hp_value
 
 
 func set_elapsed_time(value: float):

scenes/player.gd

@@ -15,7 +15,7 @@ var god_mode: bool = false
 
 func _ready() -> void:
 	camera.position = global_position
-	main_ui.player_ui.set_hp(100)
+	main_ui.player_ui.update_hp()
 	GlobalConst.sig_debug_god_mode.connect(toggle_god_mode)
 
 
@@ -42,13 +42,16 @@ func take_damage(value: float) -> void:
 	player_stats.current_health = clampf(
 		player_stats.current_health, -1.0, player_stats.get_final("max_health", modifiers)
 	)
+	var current_hp = player_stats.get_final("current_health", modifiers)
+	var max_hp = player_stats.get_final("max_health", modifiers)
+	GlobalConst.sig_debug_stats_set.emit("current_health", "%f" % current_hp)
+	GlobalConst.sig_debug_stats_set.emit("max_hp", "%f" % max_hp)
+
 	var dm = preload("res://scenes/damage_numbers.tscn").instantiate()
 	dm.damage_taken = value
 	dm.player_damage = false
 	add_child(dm)
-	main_ui.player_ui.set_hp(
+	main_ui.player_ui.update_hp()
-		(player_stats.current_health / player_stats.get_final("max_health", modifiers)) * 100
-	)
 	if player_stats.current_health <= 0:
 		die()