refactor level, getting to tiles

ui/mainwindow/mainwindow.go

@@ -9,16 +9,32 @@ import (
 
 type MainWindow struct {
 	ctx    util.ClientCtx
-	layers []types.Renderable
+	layers map[string]types.Renderable
 }
 
 func Init(ctx util.ClientCtx) *MainWindow {
 	ctx.Logger().Info().Msgf("Opening main window...")
-	mw := MainWindow{ctx: ctx}
+	mw := MainWindow{ctx: ctx, layers: make(map[string]types.Renderable, 0)}
 	mw.Open()
 	return &mw
 }
 
+
+
+func (mw *MainWindow) AddLayer(name string, idx int, colorName string) *MainWindow {
+	c := blt.ColorFromName(colorName)
+	mw.layers[name] = &Layer{idx: idx, defaultColor: c}
+	return mw
+}
+
+func (mw *MainWindow) GetLayer(name string) *Layer {
+	if layer, ok := mw.layers[name]; ok {
+		return layer.(*Layer)
+	}
+	mw.ctx.Logger().Fatal().Msgf("No layer with such name %s", name)
+	return nil
+}
+
 func (mw *MainWindow) Open() {
 	config := mw.ctx.Config()
 	blt.Open()
@@ -46,8 +62,4 @@ func (mw *MainWindow) Render() {
 	for _, l := range mw.layers {
 		l.Render()
 	}
-}
-
-func (mw *MainWindow) AddLayer(li types.Renderable) {
-	mw.layers = append(mw.layers, li)
-}
+}