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# frozen_string_literal: true
module Ruby2D
module Camera
# Wraps existing variables as well as adding new methods
# so that it can be handled by the Camera Module
class Square < Ruby2D::Square
# Recalculates real coordiantes
# Use after changing variables
def _draw
return if @hide
angle = Camera.angle * (Math::PI / 180)
half_width = Window.width * 0.5
half_height = Window.height * 0.5
temp_x1 = (((x + x1 - Camera.x) * Math.cos(angle)) - ((y + y1 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
temp_y1 = (((x + x1 - Camera.x) * Math.sin(angle)) + ((y + y1 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
temp_x2 = (((x + x2 - Camera.x) * Math.cos(angle)) - ((y + y2 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
temp_y2 = (((x + x2 - Camera.x) * Math.sin(angle)) + ((y + y2 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
temp_x3 = (((x + x3 - Camera.x) * Math.cos(angle)) - ((y + y3 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
temp_y3 = (((x + x3 - Camera.x) * Math.sin(angle)) + ((y + y3 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
temp_x4 = (((x + x4 - Camera.x) * Math.cos(angle)) - ((y + y4 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
temp_y4 = (((x + x4 - Camera.x) * Math.sin(angle)) + ((y + y4 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
Ruby2D::Quad.draw(x1: temp_x1, y1: temp_y1,
x2: temp_x2, y2: temp_y2,
x3: temp_x3, y3: temp_y3,
x4: temp_x4, y4: temp_y4,
color: [
[c1.r, c1.g, c1.b, c1.a],
[c2.r, c2.g, c2.b, c2.a],
[c3.r, c3.g, c3.b, c3.a],
[c4.r, c4.g, c4.b, c4.a]
],
z: z)
end
def initialize(opts = {})
super(opts)
Camera << self
Window.remove(self)
@x1 -= @x
@x2 -= @x
@x3 -= @x
@x4 -= @x
@y1 -= @y
@y2 -= @y
@y3 -= @y
@y4 -= @y
end
def remove
@hide = true
end
def add
@hide = false
end
# Methods for moving the shape
attr_writer :x, :y
def x
@x ||= 0
end
def y
@y ||= 0
end
def z=(z)
super(z)
Camera._sort_by_z
end
end
end
end
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