luboslenco
92 lines
1.8 KiB
TypeScript
92 lines
1.8 KiB
TypeScript
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class RandomNode extends LogicNode {
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constructor() {
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super();
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}
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override get = (from: i32, done: (a: any)=>void) => {
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this.inputs[0].get((min: f32) => {
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this.inputs[1].get((max: f32) => {
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done(min + RandomNode.getFloat() * (max - min));
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});
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});
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}
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// Courtesy of https://github.com/Kode/Kha/blob/main/Sources/kha/math/Random.hx
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static getInt = (): i32 => {
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let t = (RandomNode.a + RandomNode.b | 0) + RandomNode.d | 0;
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RandomNode.d = RandomNode.d + 1 | 0;
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RandomNode.a = RandomNode.b ^ RandomNode.b >>> 9;
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RandomNode.b = RandomNode.c + (RandomNode.c << 3) | 0;
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RandomNode.c = RandomNode.c << 21 | RandomNode.c >>> 11;
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RandomNode.c = RandomNode.c + t | 0;
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return t & 0x7fffffff;
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}
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static setSeed = (seed: i32): i32 => {
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RandomNode.d = seed;
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RandomNode.a = 0x36aef51a;
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RandomNode.b = 0x21d4b3eb;
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RandomNode.c = 0xf2517abf;
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// Immediately skip a few possibly poor results the easy way
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for (let i = 0; i < 15; ++i) {
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RandomNode.getInt();
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}
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return RandomNode.d;
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}
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static getSeed = (): i32 => {
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return RandomNode.d;
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}
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static a: i32;
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static b: i32;
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static c: i32;
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static d = RandomNode.setSeed(352124);
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static getFloat = (): f32 => {
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return RandomNode.getInt() / 0x7fffffff;
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}
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static def: zui_node_t = {
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id: 0,
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name: _tr("Random"),
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type: "RandomNode",
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x: 0,
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y: 0,
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color: 0xffb34f5a,
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inputs: [
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{
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id: 0,
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node_id: 0,
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name: _tr("Min"),
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type: "VALUE",
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color: 0xffa1a1a1,
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default_value: 0.0
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},
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{
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id: 0,
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node_id: 0,
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name: _tr("Max"),
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type: "VALUE",
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color: 0xffa1a1a1,
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default_value: 1.0
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}
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],
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outputs: [
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{
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id: 0,
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node_id: 0,
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name: _tr("Value"),
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type: "VALUE",
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color: 0xffa1a1a1,
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default_value: 0.5
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}
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],
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buttons: []
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};
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}
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