more work on the ui theme and changing the hud

UI/EnergyPipUI/energy_pips.gd

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+class_name EnergyPips
+extends Control
+
+@export var tex: TextureRect
+
+var energy: int :
+	get():
+		return energy
+	set(value):
+		energy = value
+		if energy == max_energy:
+			tex.texture.region.position.x = 0.0
+		elif energy > 0:
+			tex.texture.region.position.x = 21.0 * floori(lerp(11, 1, float(energy) / max_energy))
+		else:
+			tex.texture.region.position.x = 21.0 * 12
+
+
+var max_energy: int :
+	get():
+		return max_energy
+	set(value):
+		max_energy = value
+		energy = max_energy