1 files changed, 132 insertions, 0 deletions
diff --git a/lib/ruby2d/camera.rb b/lib/ruby2d/camera.rb
new file mode 100644
index 0000000..c8f1667
--- /dev/null
+++ b/lib/ruby2d/camera.rb
@@ -0,0 +1,132 @@
+# frozen_string_literal: true
+
+require_relative "camera/version"
+require_relative "camera/triangle"
+
+#Dir[File.join(__dir__, 'camera', '*.rb')].sort.each { |file| require file }
+
+# Handles rendering objects relative
+# to a camera location
+module Ruby2D
+  module Camera
+    class <<self
+
+      private
+      # Contains all objects that are tracked
+      def objects
+        @objects ||= []
+      end
+    end
+
+    def self.debug_x
+      @debug_x ||= 0
+    end
+
+    def self.debug_x=(debug_x)
+      @debug_x = debug_x
+    end
+
+    def self.debug_y
+      @debug_y ||= 0
+    end
+
+    def self.debug_y=(debug_y)
+      @debug_y = debug_y
+    end
+
+    # Adding objects so they are
+    # tracked by the Camera
+    def self.<<(item)
+=begin
+      case item
+      when Triangle
+        item.extend Camera::TriangleWrapped
+      when Square
+        item.extend Camera::SquareWrapped
+      when Rectangle
+        item.extend Camera::RectangleWrapped
+      when Quad
+        item.extend Camera::QuadWrapped
+      when Line
+        item.extend Camera::LineWrapped
+      when Circle
+        item.extend Camera::CircleWrapped
+      when Image
+        item.extend Camera::ImageWrapped
+      when Sprite
+        item.extend Camera::SpriteWrapped
+      when Text
+        item.extend Camera::TextWrapped
+      else
+        puts 'Warning: Non-standard Object added to Camera'
+        puts '  Object may not behave as expected'
+      end
+=end
+      objects.push(item) unless objects.include?(item)
+    end
+
+    def self.remove(item)
+      objects.delete(item) if objects.include?(item)
+    end
+
+    # Redraw all objects that
+    # are tracked by the Camera
+    def self.redraw(auto_purge: false)
+      #if auto_purge
+      #  objects.each do |item|
+      #    if item.nil?
+      #      puts "Warning: Nil Object detected in Camera"
+      #      puts "  Nil Object removed"
+      #      objects.delete(obj)
+      #    else
+      #      item.redraw
+      #    end
+      #  end
+      #else
+        objects.each(&:_draw)
+      #end
+    end
+
+    # Variables changing Camera properties
+    def self._x(x)
+      @x += x
+    end
+
+    def self._y(y)
+      @y += y
+    end
+
+    def self.x
+      @x ||= 0
+    end
+
+    def self.x=(x)
+      @x = x
+    end
+
+    def self.y
+      @y ||= 0
+    end
+
+    def self.y=(y)
+      @y = y
+    end
+
+    def self.zoom
+      @zoom ||= 1.0
+    end
+
+    def self.zoom=(zoom)
+      @zoom = zoom
+    end
+
+    def self.angle
+      @angle ||= 0
+    end
+
+    def self.angle=(angle)
+      angle %= 360
+      @angle = angle
+    end
+  end
+end