324 wiersze
9.0 KiB
TypeScript
324 wiersze
9.0 KiB
TypeScript
import React, { useRef, useState } from "react";
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import { AutoSizingSvg } from "../auto-sizing-svg";
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import { ExportWidget } from "../export-svg";
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import { HoverDebugHelper } from "../hover-debug-helper";
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import { NumericSlider } from "../numeric-slider";
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import {
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noFillIfShowingSpecs,
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SvgSymbolContext,
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swapColors,
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} from "../svg-symbol";
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import { VocabularyWidget } from "../vocabulary-widget";
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import { svgRotate, svgScale, SvgTransform } from "../svg-transform";
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import { SvgVocabulary } from "../svg-vocabulary";
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import { isEvenNumber, NumericRange } from "../util";
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import { Random } from "../random";
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import { Checkbox } from "../checkbox";
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import {
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CompositionContextWidget,
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createSvgCompositionContext,
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} from "../svg-composition-context";
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import { Page } from "../page";
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import { MandalaCircle, MandalaCircleParams } from "../mandala-circle";
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import { useAnimationPct } from "../animation";
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type ExtendedMandalaCircleParams = MandalaCircleParams & {
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scaling: number;
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rotation: number;
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symbolScaling: number;
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symbolRotation: number;
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animateSymbolRotation: boolean;
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};
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const CIRCLE_1_DEFAULTS: ExtendedMandalaCircleParams = {
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data: SvgVocabulary.get("eye"),
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radius: 300,
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numSymbols: 5,
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scaling: 1,
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rotation: 0,
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symbolScaling: 1,
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symbolRotation: 0,
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invertEveryOtherSymbol: false,
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animateSymbolRotation: false,
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};
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const CIRCLE_2_DEFAULTS: ExtendedMandalaCircleParams = {
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data: SvgVocabulary.get("leg"),
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radius: 0,
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numSymbols: 3,
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scaling: 0.5,
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rotation: 0,
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symbolScaling: 1,
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symbolRotation: 0,
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invertEveryOtherSymbol: false,
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animateSymbolRotation: false,
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};
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const RADIUS: NumericRange = {
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min: -500,
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max: 500,
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step: 1,
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};
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const NUM_SYMBOLS: NumericRange = {
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min: 1,
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max: 20,
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step: 1,
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};
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const SCALING: NumericRange = {
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min: 0.1,
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max: 1,
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step: 0.05,
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};
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const ROTATION: NumericRange = {
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min: 0,
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max: 359,
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step: 1,
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};
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const DURATION_SECS: NumericRange = {
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min: 0.5,
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max: 10,
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step: 0.1,
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};
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const DEFAULT_DURATION_SECS = 3;
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const ExtendedMandalaCircle: React.FC<
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ExtendedMandalaCircleParams & SvgSymbolContext
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> = ({ scaling, rotation, symbolScaling, symbolRotation, ...props }) => {
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props = {
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...props,
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symbolTransforms: [svgScale(symbolScaling), svgRotate(symbolRotation)],
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};
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return (
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<SvgTransform transform={[svgScale(scaling), svgRotate(rotation)]}>
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<MandalaCircle {...props} />
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</SvgTransform>
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);
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};
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function animateMandalaCircleParams(
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value: ExtendedMandalaCircleParams,
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animPct: number
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): ExtendedMandalaCircleParams {
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if (value.animateSymbolRotation) {
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value = {
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...value,
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symbolRotation: animPct * ROTATION.max,
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};
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}
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return value;
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}
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function isAnyMandalaCircleAnimated(
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values: ExtendedMandalaCircleParams[]
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): boolean {
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return values.some((value) => value.animateSymbolRotation);
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}
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const ExtendedMandalaCircleParamsWidget: React.FC<{
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idPrefix: string;
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value: ExtendedMandalaCircleParams;
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onChange: (value: ExtendedMandalaCircleParams) => void;
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}> = ({ idPrefix, value, onChange }) => {
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return (
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<div className="thingy">
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<VocabularyWidget
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id={`${idPrefix}symbol`}
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label="Symbol"
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value={value.data}
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onChange={(data) => onChange({ ...value, data })}
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choices={SvgVocabulary}
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/>
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<NumericSlider
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id={`${idPrefix}radius`}
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label="Radius"
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value={value.radius}
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onChange={(radius) => onChange({ ...value, radius })}
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{...RADIUS}
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/>
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<NumericSlider
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id={`${idPrefix}numSymbols`}
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label="Number of symbols"
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value={value.numSymbols}
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onChange={(numSymbols) => onChange({ ...value, numSymbols })}
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{...NUM_SYMBOLS}
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/>
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<NumericSlider
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id={`${idPrefix}scaling`}
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label="Scaling"
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value={value.scaling}
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onChange={(scaling) => onChange({ ...value, scaling })}
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{...SCALING}
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/>
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<NumericSlider
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id={`${idPrefix}rotation`}
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label="Rotation"
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value={value.rotation}
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onChange={(rotation) => onChange({ ...value, rotation })}
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{...ROTATION}
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/>
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<NumericSlider
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id={`${idPrefix}symbolScaling`}
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label="Symbol scaling"
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value={value.symbolScaling}
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onChange={(symbolScaling) => onChange({ ...value, symbolScaling })}
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{...SCALING}
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/>
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<NumericSlider
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id={`${idPrefix}symbolRotation`}
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label="Symbol rotation"
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disabled={value.animateSymbolRotation}
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value={value.symbolRotation}
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onChange={(symbolRotation) => onChange({ ...value, symbolRotation })}
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{...ROTATION}
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/>
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<Checkbox
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label="Animate symbol rotation"
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value={value.animateSymbolRotation}
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onChange={(animateSymbolRotation) =>
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onChange({ ...value, animateSymbolRotation })
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}
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/>
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<Checkbox
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label="Invert every other symbol (applies only to circles with an even number of symbols)"
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disabled={!isEvenNumber(value.numSymbols)}
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value={value.invertEveryOtherSymbol}
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onChange={(invertEveryOtherSymbol) =>
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onChange({ ...value, invertEveryOtherSymbol })
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}
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/>
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</div>
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);
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};
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function getRandomCircleParams(rng: Random): MandalaCircleParams {
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return {
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data: rng.choice(SvgVocabulary.items),
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radius: rng.inRange(RADIUS),
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numSymbols: rng.inRange(NUM_SYMBOLS),
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invertEveryOtherSymbol: rng.bool(),
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};
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}
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export const MandalaPage: React.FC<{}> = () => {
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const svgRef = useRef<SVGSVGElement>(null);
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const canvasRef = useRef<HTMLDivElement>(null);
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const [circle1, setCircle1] = useState(CIRCLE_1_DEFAULTS);
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const [circle2, setCircle2] = useState(CIRCLE_2_DEFAULTS);
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const [durationSecs, setDurationSecs] = useState(DEFAULT_DURATION_SECS);
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const [baseCompCtx, setBaseCompCtx] = useState(createSvgCompositionContext());
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const [useTwoCircles, setUseTwoCircles] = useState(false);
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const [invertCircle2, setInvertCircle2] = useState(true);
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const [firstBehindSecond, setFirstBehindSecond] = useState(false);
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const randomize = () => {
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const rng = new Random(Date.now());
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setCircle1({ ...circle1, ...getRandomCircleParams(rng) });
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setCircle2({ ...circle2, ...getRandomCircleParams(rng) });
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};
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const isAnimated = isAnyMandalaCircleAnimated([circle1, circle2]);
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const animPct = useAnimationPct(isAnimated ? durationSecs * 1000 : 0);
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const symbolCtx = noFillIfShowingSpecs(baseCompCtx);
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const circle2SymbolCtx = invertCircle2 ? swapColors(symbolCtx) : symbolCtx;
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const circles = [
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<ExtendedMandalaCircle
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key="first"
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{...animateMandalaCircleParams(circle1, animPct)}
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{...symbolCtx}
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/>,
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];
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if (useTwoCircles) {
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circles.push(
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<ExtendedMandalaCircle
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key="second"
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{...animateMandalaCircleParams(circle2, animPct)}
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{...circle2SymbolCtx}
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/>
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);
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if (firstBehindSecond) {
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circles.reverse();
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}
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}
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return (
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<Page title="Mandala!">
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<div className="sidebar">
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<CompositionContextWidget ctx={baseCompCtx} onChange={setBaseCompCtx} />
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<fieldset>
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<legend>First circle</legend>
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<ExtendedMandalaCircleParamsWidget
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idPrefix="c1"
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value={circle1}
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onChange={setCircle1}
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/>
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</fieldset>
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<div className="thingy">
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<Checkbox
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label="Add a second circle"
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value={useTwoCircles}
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onChange={setUseTwoCircles}
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/>
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</div>
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{useTwoCircles && (
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<fieldset>
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<legend>Second circle</legend>
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<ExtendedMandalaCircleParamsWidget
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idPrefix="c2"
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value={circle2}
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onChange={setCircle2}
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/>
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<Checkbox
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label="Invert colors"
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value={invertCircle2}
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onChange={setInvertCircle2}
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/>{" "}
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<Checkbox
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label="Place behind first circle"
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value={firstBehindSecond}
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onChange={setFirstBehindSecond}
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/>
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</fieldset>
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)}
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{isAnimated && (
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<NumericSlider
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label="Animation loop duration"
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valueSuffix="s"
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value={durationSecs}
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onChange={(duration) => setDurationSecs(duration)}
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{...DURATION_SECS}
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/>
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)}
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<div className="thingy">
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<button accessKey="r" onClick={randomize}>
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<u>R</u>andomize!
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</button>{" "}
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<ExportWidget basename="mandala" svgRef={svgRef} />
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</div>
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</div>
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<div
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className="canvas"
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style={{ backgroundColor: baseCompCtx.background }}
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ref={canvasRef}
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>
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<HoverDebugHelper>
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<AutoSizingSvg
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padding={20}
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ref={svgRef}
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bgColor={baseCompCtx.background}
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sizeToElement={canvasRef}
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>
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<SvgTransform transform={svgScale(0.5)}>{circles}</SvgTransform>
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</AutoSizingSvg>
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</HoverDebugHelper>
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</div>
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</Page>
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);
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};
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