added sprites

1 files changed, 48 insertions, 0 deletions

diff --git a/lib/ruby2d/camera/sprite.rb b/lib/ruby2d/camera/sprite.rb
new file mode 100644
index 0000000..4ad5bca
--- /dev/null
+++ b/lib/ruby2d/camera/sprite.rb
@@ -0,0 +1,48 @@
+# 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
+    class Sprite < Ruby2D::Sprite
+      # Recalculates real coordiantes
+      # Use after changing variables
+      def _draw
+        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)
+        temp_x = @flip_x = (((offset_x - Camera.x) * Math.cos(angle)) - ((offset_y - Camera.y) * Math.sin(angle))) \
+          * Camera.zoom + half_width - (width * Camera.zoom / 2)
+        temp_y = @flip_y = (((offset_x - Camera.x) * Math.sin(angle)) + ((offset_y - Camera.y) * Math.cos(angle))) \
+          * Camera.zoom + half_height - (height * Camera.zoom / 2)
+        temp_rotate = rotate + Camera.angle
+        temp_width = @flip_width = width * Camera.zoom
+        temp_height = @flip_height = height * Camera.zoom
+        case @flip
+        when :both
+          @flip_x = @x + @height
+          @flip_width = -@width
+          @flip_y = @y + @width
+          @flip_height = -@height
+        when :horizontal
+          @flip_y = @y + @width
+          @flip_height = -@height
+        when :vertical
+          @flip_x = @x + @height
+          @flip_width = -@width
+        end
+        self.draw(x: temp_x, y: temp_x,
+                  width: temp_width,
+                  height: temp_height,
+                  rotate: temp_rotate)
+      end
+
+      def initialize(path, opts= {})
+        super(path, opts)
+        Ruby2D::Camera << self
+        self.remove
+      end
+    end
+  end
+end