From bd197168c39551c3456099ed2a39375a8442483f Mon Sep 17 00:00:00 2001
From: David Luevano Alvarado <david@luevano.xyz>
Date: Tue, 31 May 2022 03:49:28 -0600
Subject: working snake generation and path following, minor refactor

---
 src/entities/actors/snake/scripts/snake.gd | 42 ++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 src/entities/actors/snake/scripts/snake.gd

(limited to 'src/entities/actors/snake/scripts/snake.gd')

diff --git a/src/entities/actors/snake/scripts/snake.gd b/src/entities/actors/snake/scripts/snake.gd
new file mode 100644
index 0000000..e604011
--- /dev/null
+++ b/src/entities/actors/snake/scripts/snake.gd
@@ -0,0 +1,42 @@
+class_name Snake
+extends Node2D
+
+export(PackedScene) var BODY_SEGMENT_NP: PackedScene
+export(PackedScene) var TAIL_SEGMENT_NP: PackedScene
+
+onready var path: Path2D = $Path
+
+var current_body_segments: int = 0
+var max_body_segments: int = 1
+var body_segment_size: float = 16.0
+
+
+func _ready():
+	Event.connect("new_curve_point", self, "_on_Head_new_curve_point")
+
+
+func _draw() -> void:
+	if path.curve.get_baked_points().size() >= 2:
+		draw_polyline(path.curve.get_baked_points(), Color.aquamarine, 1, true)
+
+
+func add_point_to_curve(coordinates: Vector2) -> void:
+	path.curve.add_point(coordinates)
+	# update call is to draw curve as there are new points
+	update()
+
+	if current_body_segments < max_body_segments:
+		add_snake_segment(BODY_SEGMENT_NP)
+	elif current_body_segments == max_body_segments:
+		add_snake_segment(TAIL_SEGMENT_NP)
+
+
+func add_snake_segment(type: PackedScene) -> void:
+	if path.curve.get_baked_length() >= (current_body_segments + 1.0) * body_segment_size:
+		var _temp_body_segment: PathFollow2D = type.instance()
+		path.add_child(_temp_body_segment)
+		current_body_segments += 1
+
+
+func _on_Head_new_curve_point(coordinates: Vector2) -> void:
+	add_point_to_curve(coordinates)
-- 
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