mirror of
https://github.com/lxsang/Diya-API.git
synced 2024-12-28 12:28:21 +01:00
2e4c73f8cf
- fix: TF update bug on scale - fix: Use local coordiate for Polygon points - Add timer node for basic animation - Dirty processing nodes are monitored by rootnode - refactory code
65 lines
1.2 KiB
Smalltalk
65 lines
1.2 KiB
Smalltalk
Class {
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#name : #DiyaPolygon,
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#superclass : #Diya2DPrimShape,
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#instVars : [
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'points'
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],
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#category : #'Diya-Graphics'
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}
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{ #category : #'as yet unclassified' }
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DiyaPolygon class >> points: points [
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^self new points: points; yourself
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]
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{ #category : #'as yet unclassified' }
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DiyaPolygon class >> points: points shader:s [
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^self new points: points; shader:s; yourself
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]
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{ #category : #accessing }
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DiyaPolygon >> calculateVertices [
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^self subclassResponsibility
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]
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{ #category : #initialization }
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DiyaPolygon >> initialize [
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super initialize.
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points := {}.
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vbuffer := nil.
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]
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{ #category : #accessing }
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DiyaPolygon >> points [
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^ points
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]
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{ #category : #accessing }
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DiyaPolygon >> points: anObject [
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points := anObject.
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self setDirty
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]
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{ #category : #accessing }
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DiyaPolygon >> process [
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bbox := self recFromPoints.
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self calculateVertices.
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^true
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]
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{ #category : #accessing }
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DiyaPolygon >> recFromPoints [
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|maxX maxY minX minY x y|
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maxX := minX := (points at: 1) x.
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maxY := minY := (points at: 1) y.
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points do: [ :p|
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x := p x.
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y := p y.
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maxX := maxX max: x.
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maxY := maxY max: y.
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minX := minX min: x.
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minY := minY min: y.
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].
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^ Rectangle origin: minX@minY corner: maxX @ maxY
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]
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