66 lines
1.0 KiB
Go
66 lines
1.0 KiB
Go
package scene
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import (
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"aego/core/ids"
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"aego/core/mathx"
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"aego/core/strs"
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)
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type Transform2D struct {
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Position mathx.Vec2
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Rotation float32
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Scale mathx.Vec2
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}
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func IdentityTransform() Transform2D {
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return Transform2D{Scale: mathx.Vec2{X: 1, Y: 1}}
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}
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func (t Transform2D) Matrix() mathx.Mat3 {
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s := t.Scale
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if s.X == 0 && s.Y == 0 {
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s = mathx.Vec2{X: 1, Y: 1}
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}
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return mathx.Mat3TRS(t.Position, t.Rotation, s)
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}
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const (
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flagAlive uint8 = 1 << iota
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flagEnabled
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flagEffective
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flagWorldDirty
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flagPendingDestroy
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flagUnder3D
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)
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type nodeData struct {
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id ids.NodeID
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name strs.StringID
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parent NodeHandle
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firstChild NodeHandle
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lastChild NodeHandle
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nextSib NodeHandle
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prevSib NodeHandle
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local Transform2D
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world mathx.Mat3
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layers uint64
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flags uint8
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space Space
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childCount int32
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slot int32
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pres int32
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rslot int32
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}
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func (n *nodeData) has(f uint8) bool {
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return n.flags&f != 0
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}
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func (n *nodeData) set(f uint8, v bool) {
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if v {
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n.flags |= f
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return
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}
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n.flags &^= f
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}
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