Added basic movement in an arena

README.md

@@ -1,3 +1,3 @@
 # Ouroboros
 
-Game jam made for the GMTK 2025 Game Jam
+Game jam made for the GMTK 2025 Game Jam

Scenes/level.tscn

@@ -0,0 +1,27 @@
+[gd_scene load_steps=5 format=3 uid="uid://gkqku38yb2ng"]
+
+[sub_resource type="RectangleShape2D" id="RectangleShape2D_51e2h"]
+
+[sub_resource type="QuadMesh" id="QuadMesh_tumq0"]
+size = Vector2(21.5, 21.5)
+
+[sub_resource type="Gradient" id="Gradient_k5f4k"]
+interpolation_mode = 2
+offsets = PackedFloat32Array(0, 0.928571, 0.961039, 1)
+colors = PackedColorArray(0, 0, 0, 0, 0.819608, 0.819608, 0.819608, 0, 1, 1, 1, 1, 0.650865, 0.650865, 0.650865, 0)
+
+[sub_resource type="GradientTexture2D" id="GradientTexture2D_6phgx"]
+gradient = SubResource("Gradient_k5f4k")
+fill = 2
+fill_from = Vector2(0.5, 0.495413)
+fill_to = Vector2(0, 0)
+
+[node name="Level" type="Area2D"]
+monitorable = false
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
+shape = SubResource("RectangleShape2D_51e2h")
+
+[node name="MeshInstance2D" type="MeshInstance2D" parent="CollisionShape2D"]
+mesh = SubResource("QuadMesh_tumq0")
+texture = SubResource("GradientTexture2D_6phgx")

Scenes/main.tscn

@@ -0,0 +1,20 @@
+[gd_scene load_steps=3 format=3 uid="uid://bs6an72avch86"]
+
+[ext_resource type="PackedScene" uid="uid://gkqku38yb2ng" path="res://Scenes/level.tscn" id="1_bo1nx"]
+[ext_resource type="PackedScene" uid="uid://d0okbjqyaoe0w" path="res://Scenes/snake_part.tscn" id="2_8gbba"]
+
+[node name="Main" type="Node2D"]
+
+[node name="Level" parent="." instance=ExtResource("1_bo1nx")]
+position = Vector2(620, 320)
+scale = Vector2(50, 30)
+
+[node name="Timer" type="Timer" parent="."]
+wait_time = 0.3
+autostart = true
+
+[node name="SnakePart" parent="." instance=ExtResource("2_8gbba")]
+position = Vector2(420, 240)
+
+[connection signal="area_exited" from="Level" to="SnakePart" method="_on_level_area_exited"]
+[connection signal="timeout" from="Timer" to="SnakePart" method="process_movement" binds= [Vector2(0, 0)]]

Scenes/snake_part.tscn

@@ -0,0 +1,34 @@
+[gd_scene load_steps=4 format=3 uid="uid://d0okbjqyaoe0w"]
+
+[ext_resource type="Script" uid="uid://cn4hlmm4qa8fg" path="res://Scripts/snake_part.gd" id="1_iuiyg"]
+
+[sub_resource type="RectangleShape2D" id="RectangleShape2D_hf2pu"]
+size = Vector2(18, 18)
+
+[sub_resource type="PlaceholderTexture2D" id="PlaceholderTexture2D_kum7e"]
+size = Vector2(20, 20)
+
+[node name="SnakePart" type="Area2D"]
+script = ExtResource("1_iuiyg")
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
+shape = SubResource("RectangleShape2D_hf2pu")
+
+[node name="Sprite2D" type="Sprite2D" parent="."]
+texture = SubResource("PlaceholderTexture2D_kum7e")
+
+[node name="DownRayCast2D" type="RayCast2D" parent="."]
+target_position = Vector2(0, 30)
+collide_with_areas = true
+
+[node name="LeftRayCast2D" type="RayCast2D" parent="."]
+target_position = Vector2(-30, 0)
+collide_with_areas = true
+
+[node name="UpRayCast2D" type="RayCast2D" parent="."]
+target_position = Vector2(0, -30)
+collide_with_areas = true
+
+[node name="RightRayCast2D" type="RayCast2D" parent="."]
+target_position = Vector2(30, 0)
+collide_with_areas = true

Scripts/snake_part.gd

@@ -0,0 +1,129 @@
+extends Area2D
+class_name SnakePart
+
+const TILE_SIZE = 20
+enum PartTypes {HEAD, BODY, TAIL, DEAD}
+
+var part_type : PartTypes = PartTypes.HEAD
+var current_direction : Vector2 = Vector2.RIGHT
+
+var inputs : Dictionary[String, Vector2] = {"right": Vector2.RIGHT,
+											"left": Vector2.LEFT,
+											"up": Vector2.UP,
+											"down": Vector2.DOWN}
+
+
+@onready
+var raycast_right = $RightRayCast2D
+@onready
+var raycast_left = $LeftRayCast2D
+@onready
+var raycast_up = $UpRayCast2D
+@onready
+var raycast_down = $DownRayCast2D
+
+
+var snake_part_obj = preload("res://Scenes/snake_part.tscn")
+
+@onready
+var timer_ref = $"../Timer"
+
+signal do_movement(new_dir)
+
+func _ready() -> void:
+	if part_type == PartTypes.HEAD:
+		
+		# Add to group for easy access from other nodes
+		add_to_group("Head")
+		
+		# Set up a body part
+		var body = snake_part_obj.instantiate()
+		body.part_type = PartTypes.BODY
+		body.position = (position - current_direction * TILE_SIZE).snapped(Vector2.ONE * TILE_SIZE)
+		get_parent().add_child.call_deferred(body)
+		do_movement.connect(body.process_movement)
+		
+		# Set up a tail part
+		var tail = snake_part_obj.instantiate()
+		tail.part_type = PartTypes.TAIL
+		tail.position = (position - current_direction * TILE_SIZE * 2).snapped(Vector2.ONE * TILE_SIZE)
+		get_parent().add_child.call_deferred(tail)
+		body.do_movement.connect(tail.process_movement)
+	else:
+		raycast_down.queue_free()
+		raycast_up.queue_free()
+		raycast_left.queue_free()
+		raycast_right.queue_free()
+	#elif part_type == PartTypes.BODY:
+		#area_entered.connect(_on_part_area_entered)
+	#elif part_type == PartTypes.TAIL:
+		#area_entered.connect(_on_part_area_entered)
+
+
+
+func process_movement(new_direction : Vector2) -> void:
+	if part_type == PartTypes.HEAD:
+		check_movement()
+	position = (position + current_direction * TILE_SIZE).snapped(Vector2.ONE * TILE_SIZE)
+	#process_collisions();
+	do_movement.emit(current_direction)
+	if new_direction != Vector2.ZERO:
+		current_direction = new_direction
+
+func check_movement() -> void:
+	# Get the correct raycast for the direction we are moving
+	var raycast_to_use : RayCast2D
+	if current_direction == Vector2.RIGHT:
+		raycast_to_use = raycast_right
+	elif current_direction == Vector2.LEFT:
+		raycast_to_use = raycast_left
+	elif current_direction == Vector2.UP:
+		raycast_to_use = raycast_up
+	elif current_direction == Vector2.DOWN:
+		raycast_to_use = raycast_down
+	
+	# Look using the raycast for anything to collide with
+	var object_in_path : Object = raycast_to_use.get_collider()
+	if object_in_path == null:
+		return
+	if object_in_path is SnakePart:
+		match object_in_path.part_type:
+			PartTypes.BODY:
+				lose_game()
+			PartTypes.TAIL:
+				ouroboros()
+
+#func process_collisions() -> void:
+	#var colliding_areas = get_overlapping_areas()
+	#for area in colliding_areas:
+		#if area is SnakePart:
+			#match area.part_type:
+				#PartTypes.BODY:
+					#lose_game()
+				#PartTypes.TAIL:
+					#ouroboros()
+
+func lose_game() -> void:
+	# You lose!
+	print("Game lost")
+	timer_ref.stop()
+
+func ouroboros() -> void:
+	print("You have achieved the ouroboros!")
+
+func _unhandled_input(event: InputEvent) -> void:
+	if event is InputEventKey and part_type == PartTypes.HEAD:
+		for dir in inputs.keys():
+			if event.is_action_pressed(dir):
+				current_direction = inputs[dir]
+
+#func _on_part_area_entered(area: Area2D) -> void:
+	#if area.get("part_type") != PartTypes.HEAD:
+		#return
+	#if part_type == PartTypes.BODY or part_type == PartTypes.DEAD:
+		#lose_game()
+	#elif part_type == PartTypes.TAIL:
+		#ouroboros()
+
+func _on_level_area_exited(area: Area2D) -> void:
+	lose_game()

Scripts/snake_part.gd.uid

@@ -0,0 +1 @@
+uid://cn4hlmm4qa8fg

project.godot

@@ -14,6 +14,33 @@ config/name="Ouroboros"
 config/features=PackedStringArray("4.4", "GL Compatibility")
 config/icon="res://icon.svg"
 
+[input]
+
+right={
+"deadzone": 0.2,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":68,"key_label":0,"unicode":100,"location":0,"echo":false,"script":null)
+, Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":4194321,"key_label":0,"unicode":0,"location":0,"echo":false,"script":null)
+]
+}
+left={
+"deadzone": 0.2,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":65,"key_label":0,"unicode":97,"location":0,"echo":false,"script":null)
+, Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":4194319,"key_label":0,"unicode":0,"location":0,"echo":false,"script":null)
+]
+}
+down={
+"deadzone": 0.2,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":83,"key_label":0,"unicode":115,"location":0,"echo":false,"script":null)
+, Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":4194322,"key_label":0,"unicode":0,"location":0,"echo":false,"script":null)
+]
+}
+up={
+"deadzone": 0.2,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":87,"key_label":0,"unicode":119,"location":0,"echo":false,"script":null)
+, Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":4194320,"key_label":0,"unicode":0,"location":0,"echo":false,"script":null)
+]
+}
+
 [rendering]
 
 renderer/rendering_method="gl_compatibility"