more work on the ui theme and changing the hud

UI/EnemyHealthBar/health_bar.gd

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+class_name HealthBar
+extends TextureProgressBar
+
+@export var health_bar_gradient: Gradient
+
+@onready var prev_bar: TextureProgressBar = $PreviousHealthBar
+
+
+func setup(health: float) -> void:
+	max_value = health
+	value = health
+	prev_bar.max_value = health
+	prev_bar.value = health
+
+
+func on_health_changed(health: float) -> void:
+	set_visible(true)
+	var health_went_down: bool = true if health < value else false
+	value = health
+	tint_progress = health_bar_gradient.sample(value / max_value)
+	if health_went_down:
+		var tween: Tween = create_tween()
+		tween.set_ease(Tween.EASE_OUT)
+		tween.set_trans(Tween.TRANS_QUINT)
+		tween.tween_interval(0.3)
+		tween.tween_property(prev_bar, "value", value, 0.7)
+	else:
+		prev_bar.value = value

UI/EnemyHealthBar/health_bar.gd.uid

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+uid://bf06es50d0flv

UI/EnemyHealthBar/health_bar.tscn

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+[gd_scene load_steps=4 format=3 uid="uid://hjq3nrnumklp"]
+
+[ext_resource type="Texture2D" uid="uid://r202vo47jw1q" path="res://Assets/Textures/enemyhealth.png" id="1_x8m88"]
+[ext_resource type="Script" uid="uid://bf06es50d0flv" path="res://UI/EnemyHealthBar/health_bar.gd" id="2_m8c1f"]
+[ext_resource type="Gradient" uid="uid://dx7auy3oqw82t" path="res://UI/EnemyHealthBar/health_bar_gradient.tres" id="3_dpmma"]
+
+[node name="HealthBar" type="TextureProgressBar"]
+offset_right = 200.0
+offset_bottom = 200.0
+grow_horizontal = 2
+grow_vertical = 2
+step = 0.0
+value = 100.0
+fill_mode = 6
+texture_progress = ExtResource("1_x8m88")
+tint_progress = Color(0, 1, 0, 1)
+script = ExtResource("2_m8c1f")
+health_bar_gradient = ExtResource("3_dpmma")
+
+[node name="PreviousHealthBar" type="TextureProgressBar" parent="."]
+z_index = -1
+layout_mode = 0
+offset_right = 200.0
+offset_bottom = 200.0
+grow_horizontal = 2
+grow_vertical = 2
+step = 0.0
+value = 100.0
+fill_mode = 6
+texture_progress = ExtResource("1_x8m88")

UI/EnemyHealthBar/health_bar_gradient.tres

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+[gd_resource type="Gradient" format=3 uid="uid://dx7auy3oqw82t"]
+
+[resource]
+interpolation_color_space = 2
+offsets = PackedFloat32Array(0, 0.131148, 0.357143, 0.758242, 1)
+colors = PackedColorArray(0.788235, 0, 0, 1, 0.818896, 0.282651, 0.000353087, 1, 0.945098, 1, 0, 1, 0.259747, 0.912524, 6.85382e-05, 1, 0, 0.917647, 0, 1)