more checking rooms

ui/mainwindow/viewport.go

@@ -14,7 +14,7 @@ import (
 var NotInViewError = errors.New("not in ViewPort")
 
 type ViewPort struct {
-	*types.Rect
+	types.Rect
 	cameraCoords types.Coords
 	layer        *Layer
 	Fov          fov.Fov
@@ -27,7 +27,7 @@ func NewViewPort(x, y, w, h int, layer *Layer) *ViewPort {
 	computedFov := precomputed_shade.NewPrecomputedShade(15)
 	computedFov.Init()
 	vp := ViewPort{
-		Rect:  &types.Rect{x, y, w, h},
+		Rect:  types.Rect{x, y, w, h},
 		layer: layer,
 		Fov:   computedFov,
 	}