90 lines
2.0 KiB
Go
90 lines
2.0 KiB
Go
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package light
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import (
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"zworld/engine/object"
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"zworld/engine/render/uniform"
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"zworld/engine/renderapi/color"
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"zworld/plugins/math/vec4"
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)
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type PointArgs struct {
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Color color.T
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Range float32
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Intensity float32
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}
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type Point struct {
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object.Component
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Color object.Property[color.T]
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Range object.Property[float32]
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Intensity object.Property[float32]
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Falloff object.Property[float32]
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}
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var _ T = &Point{}
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func init() {
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object.Register[*Point](DeserializePoint)
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}
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func NewPoint(args PointArgs) *Point {
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return object.NewComponent(&Point{
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Color: object.NewProperty(args.Color),
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Range: object.NewProperty(args.Range),
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Intensity: object.NewProperty(args.Intensity),
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Falloff: object.NewProperty(float32(2)),
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})
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}
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func (lit *Point) Name() string { return "PointLight" }
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func (lit *Point) Type() Type { return TypePoint }
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func (lit *Point) CastShadows() bool { return false }
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func (lit *Point) LightData(shadowmaps ShadowmapStore) uniform.Light {
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return uniform.Light{
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Type: uint32(TypePoint),
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Position: vec4.Extend(lit.Transform().WorldPosition(), 0),
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Color: lit.Color.Get(),
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Intensity: lit.Intensity.Get(),
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Range: lit.Range.Get(),
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Falloff: lit.Falloff.Get(),
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}
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}
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func (lit *Point) Shadowmaps() int {
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return 0
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}
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func (lit *Point) ShadowProjection(mapIndex int) uniform.Camera {
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panic("todo")
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}
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type PointState struct {
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object.ComponentState
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PointArgs
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}
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func (lit *Point) Serialize(enc object.Encoder) error {
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return enc.Encode(PointState{
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// send help
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ComponentState: object.NewComponentState(lit.Component),
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PointArgs: PointArgs{
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Color: lit.Color.Get(),
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Intensity: lit.Intensity.Get(),
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Range: lit.Range.Get(),
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},
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})
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}
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func DeserializePoint(dec object.Decoder) (object.Component, error) {
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var state PointState
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if err := dec.Decode(&state); err != nil {
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return nil, err
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}
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obj := NewPoint(state.PointArgs)
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obj.Component = state.ComponentState.New()
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return obj, nil
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}
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