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import UniformNode from '../core/UniformNode.js';
import { NodeUpdateType } from '../core/constants.js';
import { nodeObject, nodeImmutable } from '../shadernode/ShaderNode.js';
import { addNodeClass } from '../core/Node.js';
class TimerNode extends UniformNode {
constructor( scope = TimerNode.LOCAL, scale = 1, value = 0 ) {
super( value );
this.scope = scope;
this.scale = scale;
this.updateType = NodeUpdateType.FRAME;
}
/*
@TODO:
getNodeType( builder ) {
const scope = this.scope;
if ( scope === TimerNode.FRAME ) {
return 'uint';
}
return 'float';
}
*/
update( frame ) {
const scope = this.scope;
const scale = this.scale;
if ( scope === TimerNode.LOCAL ) {
this.value += frame.deltaTime * scale;
} else if ( scope === TimerNode.DELTA ) {
this.value = frame.deltaTime * scale;
} else if ( scope === TimerNode.FRAME ) {
this.value = frame.frameId;
} else {
// global
this.value = frame.time * scale;
}
}
serialize( data ) {
super.serialize( data );
data.scope = this.scope;
data.scale = this.scale;
}
deserialize( data ) {
super.deserialize( data );
this.scope = data.scope;
this.scale = data.scale;
}
}
TimerNode.LOCAL = 'local';
TimerNode.GLOBAL = 'global';
TimerNode.DELTA = 'delta';
TimerNode.FRAME = 'frame';
export default TimerNode;
// @TODO: add support to use node in timeScale
export const timerLocal = ( timeScale, value = 0 ) => nodeObject( new TimerNode( TimerNode.LOCAL, timeScale, value ) );
export const timerGlobal = ( timeScale, value = 0 ) => nodeObject( new TimerNode( TimerNode.GLOBAL, timeScale, value ) );
export const timerDelta = ( timeScale, value = 0 ) => nodeObject( new TimerNode( TimerNode.DELTA, timeScale, value ) );
export const frameId = nodeImmutable( TimerNode, TimerNode.FRAME ).uint();
addNodeClass( 'TimerNode', TimerNode );