52 lines
1021 B
Go
52 lines
1021 B
Go
package stacks
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import (
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"git.vezzani.net/ben/games/common/elements/v1"
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"git.vezzani.net/ben/games/common/elements/v1/blocks"
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"git.vezzani.net/ben/games/common/elements/v1/mouse"
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"github.com/hajimehoshi/ebiten/v2"
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)
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func New(ops ...Option) elements.ElementFunc {
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return func(d elements.Dimensions) elements.Element {
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s := Stack{
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Block: blocks.Block{InheritedDimensions: d},
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}
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for op := range ops {
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ops[op](&s)
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}
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return &s
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}
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}
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type Stack struct {
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blocks.Block
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mouse.NopHandler
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horizontal bool
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children []elements.ElementFunc
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}
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func (s *Stack) Draw(image *ebiten.Image) (w, h float64) {
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s.Block.Draw(image)
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d := s.InheritedDimensions
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d.WX, d.WY = s.Block.Size()
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if s.horizontal {
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d.WX = d.WX / float64(len(s.children))
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} else {
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d.WY = d.WY / float64(len(s.children))
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}
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var offsetX, offsetY float64
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for i := range s.children {
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offsetX, offsetY = s.children[i](d).Draw(image)
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if s.horizontal {
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d.ZX += offsetX
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} else {
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d.ZY += offsetY
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}
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}
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return s.Block.Size()
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}
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