.

1 files changed, 47 insertions, 0 deletions

diff --git a/lib/camera/wrappers/circle_wrapper.rb b/lib/camera/wrappers/circle_wrapper.rb
new file mode 100644
index 0000000..bd4f54a
--- /dev/null
+++ b/lib/camera/wrappers/circle_wrapper.rb
@@ -0,0 +1,47 @@
+# 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 update
+      angle = Camera.angle * (Math::PI / 180)
+      half_width = Window.width * 0.5
+      half_height = Window.height * 0.5
+      @x = (((x - Camera.x) * Math.cos(angle)) - ((y - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
+      @y = (((x - Camera.x) * Math.sin(angle)) + ((y - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
+      @radius = radius * Camera.zoom
+    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
+