added text

1 files changed, 49 insertions, 0 deletions

diff --git a/lib/ruby2d/camera/text.rb b/lib/ruby2d/camera/text.rb
new file mode 100644
index 0000000..21c9e1b
--- /dev/null
+++ b/lib/ruby2d/camera/text.rb
@@ -0,0 +1,49 @@
+# 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
+    # TODO: note that text could not be resized at the current iteration
+    # of Ruby2D so the math needs to be changed compensate for this.
+    # When Ruby2D gets updated to allow text resizing the math will need
+    # to be corrected again(see image_wrapper.rb for reference, that has
+    # math that allows for resizing)
+    class Text < Ruby2D::Text
+      @center = false
+
+      # 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
+        if center
+          offset_y = y + (Camera.zoom / 2)
+          offset_x = x + (Camera.zoom / 2)
+        else
+          offset_x = x + (width / Camera.zoom / 2)
+          offset_y = y + (height / Camera.zoom / 2)
+        end
+        temp_x = (((offset_x - Camera.x) * Math.cos(angle)) - ((offset_y - Camera.y) * Math.sin(angle))) \
+          * Camera.zoom + half_width - (width / 2)
+        temp_y = (((offset_x - Camera.x) * Math.sin(angle)) + ((offset_y - Camera.y) * Math.cos(angle))) \
+          * Camera.zoom + half_height - (height / 2)
+        temp_rotate = rotate + Camera.angle
+        # Workaround for resizing text
+        temp_size = size# * Camera.zoom
+        self.size *= Camera.zoom
+        self.draw(x: temp_x, y: temp_y,
+                  rotate: temp_rotate,
+                  color: self.color)
+        self.size = temp_size
+      end
+
+      def initialize(opts = {})
+        super(opts)
+        Ruby2D::Camera << self
+        self.remove
+      end
+    end
+  end
+end