finish squig behavior

objects/enemy/squig.gd

@@ -1,13 +1,104 @@
 extends "res://objects/enemy/enemy.gd"
 
+enum State {SWIMMING, FALLING, TRANSITION}
+
+# whether the squid should start in falling state
+export var start_falling: bool = false
 export var speed: float = 50.0
 export var damping: float = 0.9
+export var delay: float = 1.0
+# margin of screen hitbox is disabled in
+export var hitbox_clip: Rect2 = Rect2(0.0, 0.0, 7.0, 7.0)
+export var full_clip: Rect2 = Rect2(-4.0, -4.0, 16.0, 16.0)
+
 
 var velocity: Vector2 = Vector2.ZERO
+# start of the sector it is trapped in
+var home_sector: Vector2 = Vector2.ZERO
+var _can_transition: bool = true
+
+
+onready var current_state: int = State.SWIMMING
+onready var hitbox_shape: CollisionShape2D = $"%HitboxShape"
+onready var animation_player: AnimationPlayer = $AnimationPlayer
+
+
+func _ready() -> void:
+	if start_falling:
+		_start_falling()
+	else:
+		_start_swimming()
+	home_sector = Game.get_sector(global_position)
 
 func _physics_process(delta: float) -> void:
+	if Game.current_sector != home_sector:
+		hitbox_shape.disabled = true
+		return
+	# process movement and apply damping
 	velocity.y *= pow(damping, delta)
+	if current_state == State.FALLING:
+		velocity.y = speed
 	global_position += velocity * delta
+	
+	var sector_rect = Rect2(home_sector * Game.resolution, Game.resolution)
+	
+	# disable hitbox at edge of screen
+	var global_hitbox_clip = hitbox_clip
+	global_hitbox_clip.position += global_position
+	if sector_rect.encloses(global_hitbox_clip):
+		hitbox_shape.disabled = false
+	else:
+		hitbox_shape.disabled = true
+	
+	# check if out of sector
+	var global_full_clip = full_clip
+	global_full_clip.position += global_position
+	if not sector_rect.intersects(global_full_clip) and _can_transition:
+		match current_state:
+			State.SWIMMING:
+				current_state = State.TRANSITION
+				_can_transition = false
+				velocity = Vector2.ZERO
+				var tween = create_tween()
+				tween.tween_interval(delay)
+				tween.tween_callback(self, "_start_falling")
+			State.FALLING:
+				current_state = State.TRANSITION
+				_can_transition = false
+				velocity = Vector2.ZERO
+				var tween = create_tween()
+				tween.tween_interval(delay)
+				tween.tween_callback(self, "_start_swimming")
+			State.TRANSITION:
+				pass
+	
+	# clip to inside of home sector
+	var rid = get_canvas_item()
+	var rect = Rect2(to_local(home_sector * Game.resolution), Game.resolution)
+	VisualServer.canvas_item_set_custom_rect(rid, true, rect)
+	VisualServer.canvas_item_set_clip(rid, true)
 
+
+# give a burst of speed
 func _propel() -> void:
 	velocity.y = -speed
+
+func _start_falling() -> void:
+	if not _can_transition:
+		var player = get_tree().get_nodes_in_group("player").pop_back()
+		if player != null:
+			global_position.x = player.global_position.x
+	animation_player.play("falling")
+	current_state = State.FALLING
+	yield(create_tween().tween_interval(1.0), "finished")
+	_can_transition = true
+
+func _start_swimming() -> void:
+	if not _can_transition:
+		var player = get_tree().get_nodes_in_group("player").pop_back()
+		if player != null:
+			global_position.x = player.global_position.x
+	animation_player.play("swimming")
+	current_state = State.SWIMMING
+	yield(create_tween().tween_interval(1.0), "finished")
+	_can_transition = true

objects/enemy/squig.tscn

@@ -1,11 +1,11 @@
-[gd_scene load_steps=7 format=2]
+[gd_scene load_steps=8 format=2]
 
 [ext_resource path="res://objects/enemy/squig.gd" type="Script" id=1]
 [ext_resource path="res://graphics/enemy/squig.png" type="Texture" id=2]
 [ext_resource path="res://graphics/particles/dust.png" type="Texture" id=3]
 
 [sub_resource type="RectangleShape2D" id=1]
-extents = Vector2( 3.5, 3.5 )
+extents = Vector2( 2.5, 2.5 )
 
 [sub_resource type="Animation" id=2]
 length = 0.001
@@ -33,6 +33,58 @@ tracks/1/keys = {
 "update": 0,
 "values": [ false ]
 }
+tracks/2/type = "value"
+tracks/2/path = NodePath("Sprite:scale")
+tracks/2/interp = 1
+tracks/2/loop_wrap = true
+tracks/2/imported = false
+tracks/2/enabled = true
+tracks/2/keys = {
+"times": PoolRealArray( 0 ),
+"transitions": PoolRealArray( 1 ),
+"update": 0,
+"values": [ Vector2( 1, 1 ) ]
+}
+
+[sub_resource type="Animation" id=5]
+resource_name = "falling"
+length = 0.001
+tracks/0/type = "value"
+tracks/0/path = NodePath("Sprite:frame")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/keys = {
+"times": PoolRealArray( 0 ),
+"transitions": PoolRealArray( 1 ),
+"update": 1,
+"values": [ 1 ]
+}
+tracks/1/type = "value"
+tracks/1/path = NodePath("Sprite:scale")
+tracks/1/interp = 1
+tracks/1/loop_wrap = true
+tracks/1/imported = false
+tracks/1/enabled = true
+tracks/1/keys = {
+"times": PoolRealArray( 0 ),
+"transitions": PoolRealArray( 1 ),
+"update": 0,
+"values": [ Vector2( 1, -1 ) ]
+}
+tracks/2/type = "value"
+tracks/2/path = NodePath("InkParticles:emitting")
+tracks/2/interp = 1
+tracks/2/loop_wrap = true
+tracks/2/imported = false
+tracks/2/enabled = true
+tracks/2/keys = {
+"times": PoolRealArray( 0 ),
+"transitions": PoolRealArray( 1 ),
+"update": 1,
+"values": [ true ]
+}
 
 [sub_resource type="Animation" id=4]
 resource_name = "swimming"
@@ -76,8 +128,21 @@ tracks/2/keys = {
 "method": "_propel"
 } ]
 }
+tracks/3/type = "value"
+tracks/3/path = NodePath("Sprite:scale")
+tracks/3/interp = 1
+tracks/3/loop_wrap = true
+tracks/3/imported = false
+tracks/3/enabled = true
+tracks/3/keys = {
+"times": PoolRealArray( 0 ),
+"transitions": PoolRealArray( 1 ),
+"update": 0,
+"values": [ Vector2( 1, 1 ) ]
+}
 
 [node name="Squig" type="Node2D" groups=["enemy"]]
+light_mask = 8
 script = ExtResource( 1 )
 damping = 0.5
 
@@ -96,6 +161,7 @@ damping = 4.0
 color = Color( 0, 0, 0, 1 )
 
 [node name="Sprite" type="Sprite" parent="."]
+light_mask = 8
 position = Vector2( 4, 4 )
 texture = ExtResource( 2 )
 hframes = 2
@@ -103,13 +169,15 @@ hframes = 2
 [node name="Hitbox" type="Area2D" parent="." groups=["enemy_hitbox"]]
 position = Vector2( 4, 4 )
 
-[node name="CollisionShape2D" type="CollisionShape2D" parent="Hitbox"]
+[node name="HitboxShape" type="CollisionShape2D" parent="Hitbox"]
+unique_name_in_owner = true
 position = Vector2( -0.5, -0.5 )
 shape = SubResource( 1 )
 
 [node name="AnimationPlayer" type="AnimationPlayer" parent="."]
 autoplay = "swimming"
 anims/RESET = SubResource( 2 )
+anims/falling = SubResource( 5 )
 anims/swimming = SubResource( 4 )
 
 [connection signal="area_entered" from="Hitbox" to="." method="_on_Hitbox_area_entered"]