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1 files changed, 91 insertions, 0 deletions

diff --git a/lib/camera/wrappers/line_wrapper.rb b/lib/camera/wrappers/line_wrapper.rb
new file mode 100644
index 0000000..4024d1f
--- /dev/null
+++ b/lib/camera/wrappers/line_wrapper.rb
@@ -0,0 +1,91 @@
+# 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 LineWrapped
+    # 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
+      @x1 = (((x + x1 - Camera.x) * Math.cos(angle)) - ((y + y1 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
+      @y1 = (((x + x1 - Camera.x) * Math.sin(angle)) + ((y + y1 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
+      @x2 = (((x + x2 - Camera.x) * Math.cos(angle)) - ((y + y2 - Camera.y) * Math.sin(angle))) * Camera.zoom + half_width
+      @y2 = (((x + x2 - Camera.x) * Math.sin(angle)) + ((y + y2 - Camera.y) * Math.cos(angle))) * Camera.zoom + half_height
+      @width = width * Camera.zoom
+    end
+
+    #Methods for moving the shape
+    def x
+      @x ||= x1
+    end
+
+    def x=(x)
+      @x = x
+    end
+
+    def y
+      @y ||= y1
+    end
+
+    def y=(y)
+      @y = y
+    end
+
+    # Wrappers for the coordinates so that
+    # they are handled by the Camera instead
+    # and for ease of programming
+    def x1
+      @virtual_x1 ||= @x1
+    end
+
+    def x1=(x1)
+      @virtual_x1 = x1
+    end
+
+    def y1
+      @virtual_y1 ||= @y1
+    end
+
+    def y1=(y1)
+      @virtual_y1 = y1
+    end
+
+    def x2
+      @virtual_x2 ||= @x2
+    end
+
+    def x2=(x2)
+      @virtual_x2 = x2
+    end
+
+    def y2
+      @virtual_y2 ||= @y2
+    end
+
+    def y2=(y2)
+      @virtual_y2 = y2
+    end
+
+    def width
+      @virtual_width ||= @width
+    end
+
+    def width=(width)
+      @virtual_width = width
+    end
+
+    def length
+      points_distance(x1, y1, x2, y2)
+    end
+
+    def contains?(x, y)
+      points_distance(x1, y1, x, y) <= length &&
+        points_distance(x2, y2, x, y) <= length &&
+        (((y2 - y1) * x - (x2 - x1) * y + x2 * y1 - y2 * x1).abs / length) <= 0.5 * width
+    end
+  end
+end
+