init

1 files changed, 73 insertions, 0 deletions

diff --git a/lib/camera/wrappers/image_wrapper.rb b/lib/camera/wrappers/image_wrapper.rb
new file mode 100644
index 0000000..9e4b163
--- /dev/null
+++ b/lib/camera/wrappers/image_wrapper.rb
@@ -0,0 +1,73 @@
+# 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 ImageWrapped
+    # 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
+      offset_x = x + (width / 2)
+      offset_y = y + (height / 2)
+      @x = (((offset_x - Camera.x) * Math.cos(angle)) - ((offset_y - Camera.y) * Math.sin(angle))) \
+        * Camera.zoom + half_width - (width * Camera.zoom / 2)
+      @y = (((offset_x - Camera.x) * Math.sin(angle)) + ((offset_y - Camera.y) * Math.cos(angle))) \
+        * Camera.zoom + half_height - (height * Camera.zoom / 2)
+      @rotate = rotate + Camera.angle
+      @width = width * Camera.zoom
+      @height = height * Camera.zoom
+    end
+
+    #Methods for moving the shape
+
+    # 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 x
+      @virtual_x ||= @x
+    end
+
+    def rotate
+      @virtual_rotate ||= @rotate
+    end
+
+    def rotate=(rotate)
+      @virtual_rotate = rotate
+    end
+
+    def width
+      @virtual_width ||= @width
+    end
+
+    def width=(width)
+      @virtual_width = width
+    end
+
+    def height
+      @virtual_height ||= @height
+    end
+
+    def height=(height)
+      @virtual_height = height
+    end
+  end
+end