✨ Allows the player to swim form 10 seconds !

nodes/npc/npc.gd

@@ -6,6 +6,7 @@ const SPEED = 100
 const MINIMUM_STATE_DURATION = 3
 
 const STATES = ['panic', 'dead']
+const QUEUE_FREE_DELAY = 30
 
 var gravity = ProjectSettings.get_setting("physics/2d/default_gravity")
 var direction = 0
@@ -19,9 +20,10 @@ func panic_state(delta):
 	if is_on_wall():
 		direction *= -1
 
+	var state_duration_in_seconds = ceili($fsm.state_duration)
 	var should_update = (
 		$fsm.state_duration >= MINIMUM_STATE_DURATION
-		&& ceil($fsm.state_duration) % 2 == (randi() %2)
+		&& state_duration_in_seconds % 2 == (randi() %2)
 		)
 
 	if should_update:
@@ -36,7 +38,7 @@ func on_enter_dead_state():
 	$shape.queue_free()
 
 func dead_state(_delta):
-	velocity = Vector2(0, -rising_speed * (randf_range(0.9,1)))
+	velocity = Vector2(0, -rising_speed)
 	move_and_slide()
 
 
@@ -44,5 +46,8 @@ func die(level_speed):
 	$fsm.set_next_state('dead')
 	rising_speed = level_speed
 
+	if $fsm.state_duration > QUEUE_FREE_DELAY:
+		queue_free()
+
 func pick_new_direction():
 	direction = [1,-1][randi_range(0,1)] * SPEED

nodes/player/player.gd

@@ -4,6 +4,7 @@ class_name Player
 
 const SPEED = 100.0
 const JUMP_VELOCITY = 200.0
+const APNEA_DURATION = 10
 
 const STATES= [
 	"climb",
@@ -11,7 +12,8 @@ const STATES= [
 	"idle",
 	"jump",
 	"spawn",
-	"walk"
+	"walk",
+	"swim"
 	]
 
 var use_gravity = {
@@ -20,7 +22,8 @@ var use_gravity = {
 	"idle": true,
 	"jump": true,
 	"spawn": true,
-	"walk": true
+	"walk": true,
+	"swim": true
 }
 
 var can_grab_obstacles = {
@@ -29,7 +32,8 @@ var can_grab_obstacles = {
 	"idle": true,
 	"jump": false,
 	"spawn": false,
-	"walk": true
+	"walk": true,
+	"swim": true
 }
 
 
@@ -37,7 +41,8 @@ var can_grab_obstacles = {
 @onready var sprite = get_node('oriented_container/sprite')
 
 # Get the gravity from the project settings to be synced with RigidBody nodes.
-var gravity = ProjectSettings.get_setting("physics/2d/default_gravity")
+var WORLD_GRAVITY = ProjectSettings.get_setting("physics/2d/default_gravity")
+var gravity = WORLD_GRAVITY
 
 var grabbed_obstacle = null
 
@@ -184,6 +189,30 @@ func handle_sprite_orientation():
 			$oriented_container.rotation = 0 if (velocity.x > 0) else PI
 			sprite.flip_v = velocity.x < 0
 
+func on_enter_swim_state():
+	gravity = WORLD_GRAVITY / 2
+
+func swim_state(_delta):
+	var direction_x = Input.get_axis("player_left", "player_right")
+	var direction_y = Input.get_axis("player_up", "player_down")
+	velocity = Vector2(direction_x, direction_y).normalized() * SPEED
+
+	var progress_to_black = 1 - clamp($fsm.state_duration / APNEA_DURATION, 0, 1)
+	sprite.modulate = Color(progress_to_black, progress_to_black, progress_to_black )
+
+	if $fsm.state_duration >= APNEA_DURATION:
+		die()
+
+func on_exit_swim_state():
+	gravity = WORLD_GRAVITY
+	sprite.modulate = Color(1,1,1)
+
+func swim():
+	$fsm.set_next_state("swim")
+
+func unswim():
+	$fsm.set_next_state("idle")
+
 func die():
 	$fsm.set_next_state("die")
 

scripts/gameplay/rising_level.gd

@@ -5,6 +5,7 @@ class_name RisingLevel
 
 func _ready():
 	body_entered.connect(_body_entered)
+	body_exited.connect(_body_exited)
 
 func _physics_process(delta):
 	$shape.position.y -= RISING_SPEED * delta
@@ -13,7 +14,11 @@ func _physics_process(delta):
 
 func _body_entered(body):
 	if body.is_in_group("player"):
-		body.die()
+		body.swim()
 
 	if body.is_in_group("npc"):
 		body.die(RISING_SPEED)
+
+func _body_exited(body):
+	if body.is_in_group("player"):
+		body.unswim()

scripts/ia/fsm.gd

@@ -32,8 +32,10 @@ func _physics_process(delta):
 	if "after_state" in root:
 		root.call("after_state", delta)
 
+	state_duration += delta
 	_transition()
 
+
 func _transition():
 	if next_state != null:
 		previous_state = current_state