Added jump buffer, controller input

scripts/player.gd

@@ -10,6 +10,7 @@ enum FaceDirection{LEFT, RIGHT}
 
 var facing : FaceDirection = FaceDirection.RIGHT
 var direction : float = 0.0
+var jump_buffer_timer : Timer
 var push_target : RigidBody2D
 var push_enabled : bool = false
 
@@ -18,6 +19,10 @@ var push_enabled : bool = false
 @onready var right_spawn: Marker2D = $RightSpawn
 @onready var left_spawn: Marker2D = $LeftSpawn
 
+func _ready() -> void:
+	jump_buffer_timer = Timer.new()
+	add_child(jump_buffer_timer)
+
 func _physics_process(delta: float) -> void:
 	handle_input()
 	handle_movement(delta)
@@ -27,8 +32,14 @@ func _physics_process(delta: float) -> void:
 func handle_input() -> void:
 	
 	# Handle jumping.
-	if Input.is_action_just_pressed("jump") and is_on_floor():
+	if Input.is_action_just_pressed("jump"):
+		jump_buffer_timer.start(0.1)
+		
+	if is_on_floor() and jump_buffer_timer.time_left > 0:
 		velocity.y = JUMP_VELOCITY
+		jump_buffer_timer.stop()
+		
+	# Set direction.
 	direction = Input.get_axis("move_left", "move_right")
 	if direction < 0:
 		facing = FaceDirection.LEFT