Class: MazeSolution

Inherits:
Object
  • Object
show all
Defined in:
lib/my_own_maze/generator/maze_solution.rb

Constant Summary collapse

DIRS = 
{
  'l' => [-1, 0],
  'r' => [1, 0],
  'u' => [0, -1],
  'd' => [0, 1]
}

Instance Method Summary collapse

Constructor Details

#initialize(maze) ⇒ MazeSolution

Returns a new instance of MazeSolution.


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# File 'lib/my_own_maze/generator/maze_solution.rb', line 9

def initialize(maze)
  @maze = maze
  @points = []
  init_dirs
end

Instance Method Details

#calculate(x, y) ⇒ Object 


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# File 'lib/my_own_maze/generator/maze_solution.rb', line 15

def calculate(x, y)
  @points = [@maze.find_point(x, y)]
  while !@maze.is_end?(@points.last.x, @points.last.y)
    start_point = @points.last
    result = false
    while !result && @dirs[start_point].size > 0
      next_step = @dirs[start_point].last
      @dirs[start_point].pop
      x, y = start_point.x + DIRS[next_step][0], start_point.y + DIRS[next_step][1]
      next_point = @maze.find_point(x, y)
      if next_point && !has_point?(x, y)
        @points << next_point
        result = true
      end
    end
    @points.pop unless result
  end
  @points[1...@points.size]
end