Method: MiniGL::Map#get_map_pos

Defined in:
lib/minigl/map.rb

#get_map_pos(scr_x, scr_y) ⇒ Object

Returns the tile in the map that corresponds to the given position in the screen, as a Vector, where x is the horizontal index and y the vertical index.

Parameters:

scr_x

The x-coordinate in the screen.

scr_y

The y-coordinate in the screen.



92
93
94
95
96
97
98
99
100
 
# File 'lib/minigl/map.rb', line 92

def get_map_pos(scr_x, scr_y)
  return Vector.new((scr_x + @cam.x) / @tile_size.x, (scr_y + @cam.y) / @tile_size.y) unless @isometric

  # Gets the position transformed to isometric coordinates
  v = get_isometric_position scr_x, scr_y

  # divides by the square size to find the position in the matrix
  Vector.new((v.x * @inverse_square_size).to_i, (v.y * @inverse_square_size).to_i)
end