added rectangles

1 files changed, 57 insertions, 0 deletions

diff --git a/lib/ruby2d/camera/rectangle.rb b/lib/ruby2d/camera/rectangle.rb
new file mode 100644
index 0000000..cbedefc
--- /dev/null
+++ b/lib/ruby2d/camera/rectangle.rb
@@ -0,0 +1,57 @@
+# 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
+    module Rectange < Ruby2D::Rectangle
+      # Rectangles are part of the exception where
+      # their x and y variables need to be reset
+      # when wrapped
+      #def self.extended(obj)
+      #  obj.instance_exec do
+      #    @x = 0
+      #    @y = 0
+      #  end
+      #end
+      # 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
+        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
+      end
+
+      def initialize(opts= {})
+        super(otps)
+        Ruby2D::Camera << self
+        self.remove
+      end
+      #Methods for moving the shape
+      def x
+        @x ||= 0
+      end
+
+      def x=(x)
+        @x = x
+      end
+
+      def y
+        @y ||= 0
+      end
+
+      def y=(y)
+        @y = y
+      end
+
+    end
+  end
+end