port revo's ballsnake, when the sanke he balll he balls

scripts/ball_snake.gd

@@ -0,0 +1,45 @@
+@tool
+class_name BallSnake
+extends Node2D
+
+
+@export var texture: Texture2D
+@export var target: Node2D
+@export var segments: int = 1
+@export var head_segment: bool = true
+@export var tail_segment: bool = true
+@export var auto_density: bool = false:
+	set(value):
+		auto_density = value
+		if auto_density:
+			pixels_per_segment = pixels_per_segment
+@export_range(1,2,1,"or_greater") var pixels_per_segment: float = 1.0:
+	set(value):
+		pixels_per_segment = value
+		if auto_density and target:
+			segments = int(global_position.distance_to(target.global_position) / pixels_per_segment) - 1
+
+
+func _process(delta: float) -> void:
+	if auto_density:
+		pixels_per_segment = pixels_per_segment
+	queue_redraw()
+
+
+func _draw() -> void:
+	if not target:
+		return
+	
+	if tail_segment:
+		draw_texture(texture, -texture.get_size() * 0.5)
+	
+	var end_pos = to_local(target.global_position)
+	for i in segments:
+		var weight = 1.0 / float(segments + 1) * float(i + 1)
+		draw_texture(
+			texture,
+			lerp(Vector2.ZERO, end_pos, weight) - texture.get_size() * 0.5
+		)
+	
+	if head_segment:
+		draw_texture(texture, end_pos - texture.get_size() * 0.5)