playground header skeleton, playground screen into separated files

konstructor/engines/easy_ebitengine/screen.playground.item.go

@@ -0,0 +1,10 @@
+package easy_ebitengine
+
+import "github.com/hajimehoshi/ebiten"
+
+func (e *Engine) PlaygroundItemsDraw(screen *ebiten.Image) {
+	playground := e.GetPlayground()
+	for _, item := range playground.Items {
+		e.PlaygroundAssetDraw(screen, item.Type.Render, item.Position)
+	}
+}