52 lines
719 B
Go
52 lines
719 B
Go
package gg
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import (
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)
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type PolygonTriangle struct {
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T, S int
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}
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// Grouped triangles type.
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type Polygon struct {
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Transform
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Triangles
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}
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// Polygon that can be drawn.
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type DrawablePolygon struct {
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Polygon
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ShaderOptions
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Visibility
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Colority
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}
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func (p *Polygon) MakeTriangles() Triangles {
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mv := p.Matrix()
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m := &mv
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ret := make(Triangles, len(p.Triangles))
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for i, t := range p.Triangles {
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ret[i] = Triangle{
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t[0].Apply(m),
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t[1].Apply(m),
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t[2].Apply(m),
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}
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}
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return ret
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}
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func (p *DrawablePolygon) Draw(
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e *Engine,
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i *Image,
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) {
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(&DrawableTriangles{
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Visibility: p.Visibility,
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Colority: p.Colority,
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ShaderOptions: p.ShaderOptions,
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Triangles: p.MakeTriangles(),
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}).Draw(e, i)
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}
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