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)
+}

core/vector2.go

@@ -0,0 +1,19 @@
+package core
+
+import "fmt"
+
+type Vector2 struct {
+	X float64
+	Y float64
+}
+
+func (p Vector2) String() string {
+	return fmt.Sprintf("X: %v, Y: %v", p.X, p.Y)
+}
+
+func (vector Vector2) Add(other Vector2) Vector2 {
+	return Vector2{
+		X: vector.X + other.X,
+		Y: vector.Y + other.Y,
+	}
+}