Initial commit

core/rect2d.go

@@ -0,0 +1,14 @@
+package core
+
+import "fmt"
+
+type Rect2D struct {
+	X float64
+	Y float64
+	W float64
+	H float64
+}
+
+func (rect Rect2D) String() string {
+	return fmt.Sprintf("X: %v, Y: %v, W: %v, H: %v", rect.X, rect.Y, rect.W, rect.H)
+}