okay new ux idea

common/elements/v1/element.go

@@ -1,60 +1,36 @@
 package elements
 
 import (
-	"context"
-
 	"github.com/hajimehoshi/ebiten/v2"
 )
 
+type ElementFunc func(Dimensions) Element
+
 type MouseState struct {
 	X, Y                      int32
 	LeftDown, RightDown       bool
 	LeftChanged, RightChanged bool
 }
 
-const (
-	ContainerSizeKey = "container_size"
-	ZeroKey          = "zero"
-)
-
 type Clickable interface {
-	Element
-	HandleClick(ctx context.Context, s MouseState) error
+	HandleClick(s MouseState) error
 }
 
 type Mouseable interface {
-	Element
-	HandleMouseEnter(ctx context.Context, s MouseState) error
-	HandleMouseLeave(ctx context.Context, s MouseState) error
-	HandleMouseMove(ctx context.Context, s MouseState) error
-	HandleMouseDown(ctx context.Context, s MouseState) error
-	HandleMouseUp(ctx context.Context, s MouseState) error
+	HandleMouseEnter(s MouseState) error
+	HandleMouseLeave(s MouseState) error
+	HandleMouseMove(s MouseState) error
+	HandleMouseDown(s MouseState) error
+	HandleMouseUp(s MouseState) error
 }
 
 type Element interface {
-	Draw(ctx context.Context, image *ebiten.Image) error
+	Draw(image *ebiten.Image, anchorX, anchorY float64) (w, h float64)
 }
 
-func SetZero(ctx context.Context, x, y float32) context.Context {
-	return context.WithValue(ctx, ZeroKey, [2]float32{x, y})
-}
-
-func SetContainerSize(ctx context.Context, w, h float32) context.Context {
-	return context.WithValue(ctx, ContainerSizeKey, [2]float32{w, h})
-}
-
-func GetZero(ctx context.Context) (x, y float32) {
-	if v, ok := ctx.Value(ZeroKey).([2]float32); ok {
-		return v[0], v[1]
-	}
-	return 0, 0
-}
-
-func GetContainerSize(ctx context.Context) (w, h float32) {
-	if s, ok := ctx.Value(ContainerSizeKey).([2]float32); ok {
-		return s[0], s[1]
-	}
-	return 0, 0
+type Dimensions struct {
+	zx, zy float64
+	wx, wy float64
 }
 
 type mouseHandler struct {