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# frozen_string_literal: true
module Camera
# Wraps existing variables as well as adding new methods
# so that it can be handled by the Camera Module
module CircleWrapped
# Recalculates real coordiantes
# Use after changing variables
def redraw
angle = Camera.angle * (Math::PI / 180)
half_width = Window.width * 0.5
half_height = Window.height * 0.5
@radius = radius * Camera.zoom
@x = (((x - Camera.x + radius) * Math.cos(angle)) - ((y - Camera.y + radius) * Math.sin(angle))) * Camera.zoom + half_width
@y = (((x - Camera.x + radius) * Math.sin(angle)) + ((y - Camera.y + radius) * Math.cos(angle))) * Camera.zoom + half_height
end
# Methods for moving the shape as well as
# wrappers for the coordinates so that
# they are handled by the Camera instead
# and for ease of programming
def x
@virtual_x ||= @x
end
def x=(x)
@virtual_x = x
end
def y
@virtual_y ||= @y
end
def y=(y)
@virtual_y = y
end
def radius
@virtual_radius ||= @radius
end
def radius=(radius)
@virtual_radius = radius
end
end
end
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