118 lines
2.9 KiB
GDScript
118 lines
2.9 KiB
GDScript
extends Node2D
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class_name Taquin
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tool
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var Piece = preload("res://src/Piece.tscn")
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export var rows: int = 4
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export var columns: int = 4
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export var width: int = 512
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export var height: int = 512
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var interpiece: int = 5
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var padding = 10
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var pieces: Array = []
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var missing_piece: Vector2
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var rng = RandomNumberGenerator.new()
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func _draw() -> void:
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draw_rect(Rect2(0, 0, width, height), Color.blue)
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func position_for_index(index: Vector2, size: int) -> Vector2:
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var padding_w = (width - (size * columns)) / (columns + 1)
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var padding_h = (height - (size * rows)) / (rows + 1)
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return Vector2(padding_w + index.x * (size + padding_w), padding_h + index.y * (size + padding_h))
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func _ready() -> void:
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rng.randomize()
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var piece_size: int = compute_piece_size()
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for c in range(columns):
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var pieces_row: Array = []
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for r in range(rows):
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var piece = Piece.instance()
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piece.size = piece_size
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piece.position = position_for_index(Vector2(c, r), piece.size)
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piece.set_number(1 + c + r * columns)
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if r == rows - 1 && c == columns - 1:
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piece.visible = false
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missing_piece.x = c
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missing_piece.y = r
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add_child(piece)
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pieces_row.append(piece)
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pieces.append(pieces_row)
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shuffle(10)
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func compute_piece_size() -> int:
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var w_size: int = (width - (2 * padding) - ((columns - 1) * interpiece)) / columns
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var h_size: int = (height - (2 * padding) - ((rows - 1) * interpiece)) / rows
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return int(min(w_size, h_size))
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func _input(event):
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if event.is_action_pressed("ui_up"):
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move_piece(Direction.DOWN)
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if event.is_action_pressed("ui_down"):
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move_piece(Direction.UP)
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if event.is_action_pressed("ui_left"):
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move_piece(Direction.RIGHT)
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if event.is_action_pressed("ui_right"):
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move_piece(Direction.LEFT)
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enum Direction { UP, DOWN, LEFT, RIGHT }
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func move_piece(direction) -> bool:
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var destination: Vector2 = missing_piece
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match direction:
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Direction.UP:
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print("up")
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destination.y -= 1
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Direction.DOWN:
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destination.y += 1
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print("down")
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Direction.LEFT:
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destination.x -= 1
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print("left")
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Direction.RIGHT:
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destination.x += 1
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print("right")
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print(destination)
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if (destination.x < 0 || destination.x >= columns
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|| destination.y < 0 || destination.y >= rows):
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print("impossible move")
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return false
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swap(missing_piece, destination)
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missing_piece = destination
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update()
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if check_solved():
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print("solved")
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return true
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func swap(src: Vector2, dst: Vector2) -> void:
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var tmp: Piece = pieces[src.x][src.y]
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pieces[src.x][src.y] = pieces[dst.x][dst.y]
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pieces[dst.x][dst.y] = tmp
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pieces[src.x][src.y].position = position_for_index(src, tmp.size)
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pieces[dst.x][dst.y].position = position_for_index(dst, tmp.size)
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func shuffle(count: int) -> void:
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while count > 0:
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count -= 1
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var direction = rng.randi_range(Direction.UP, Direction.RIGHT)
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move_piece(direction)
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func check_solved() -> bool:
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for c in range(columns):
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for r in range(rows):
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if pieces[c][r].number != 1 + c + r * columns:
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return false
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return true |