holy shit components are rendering whaaaaaaaaaaaaaaaat

common/elements/v1/stacks/options.go

@@ -0,0 +1,11 @@
+package stacks
+
+import "git.vezzani.net/ben/games/common/elements/v1/blocks"
+
+type Option func(*Stack)
+
+func BlockOpt(o blocks.Option) Option {
+	return func(s *Stack) {
+		o(&s.Block)
+	}
+}

common/elements/v1/stacks/stack.go

@@ -0,0 +1,48 @@
+package stacks
+
+import (
+	"git.vezzani.net/ben/games/common/elements/v1"
+	"git.vezzani.net/ben/games/common/elements/v1/blocks"
+	"git.vezzani.net/ben/games/common/elements/v1/mouse"
+
+	"github.com/hajimehoshi/ebiten/v2"
+)
+
+func New(ops ...Option) elements.ElementFunc {
+	return func(parentDimensions elements.Dimensions) elements.Element {
+		s := Stack{}
+		for op := range ops {
+			ops[op](&s)
+		}
+		return &s
+	}
+}
+
+type Stack struct {
+	blocks.Block
+	mouse.NopHandler
+	horizontal bool
+	children   []elements.ElementFunc
+}
+
+func (s *Stack) Draw(image *ebiten.Image, anchorX, anchorY float64) (w, h float64) {
+	s.Block.Draw(image, anchorX, anchorY)
+	var offsetX, offsetY float64
+	originalX, originalY := anchorX, anchorY
+
+	d := elements.Dimensions{
+		ZX: originalX,
+		ZY: originalY,
+	}
+
+	d.WX, d.WY = s.Block.Size()
+	for i := range s.children {
+		offsetX, offsetY = s.children[i](d).Draw(image, anchorX, anchorY)
+		if s.horizontal {
+			anchorX += offsetX
+		} else {
+			anchorY += offsetY
+		}
+	}
+	return anchorX - originalX, anchorY - originalY
+}