automated snapshot

sketch.go

@@ -4,7 +4,19 @@ import (
 	"github.com/gen2brain/raylib-go/raylib"
 )
 
-type Sketch interface {
+type Sketch struct {
+	layers []Layer
+}
+
+func (s *Sketch) Draw(ctx *RenderCtx) {
+	for _, layer := range s.layers {
+		layer.Draw(ctx)
+	}
+}
+
+
+
+type Layer interface {
 	Draw(ctx *RenderCtx)
 }