200 lines
5.2 KiB
Vue
200 lines
5.2 KiB
Vue
<script setup>
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import { onMounted, watch } from "vue";
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import { globalStore } from "../stores/index.js";
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import {
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createBoard,
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conwayRules,
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overpopulationRules,
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lonelinessRules,
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threebornRules,
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highLifeRules,
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servietteRules,
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evolve2d,
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} from "../modules/core.js";
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import {
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create1dInitialState,
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create2dRandomGrid,
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} from "../modules/board.js";
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import { picToBoard } from "../modules/picture.js";
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const store = globalStore();
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const available2dRules = {
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conway: conwayRules,
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overpopulation: overpopulationRules,
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loneliness: lonelinessRules,
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threeborn: threebornRules,
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highlife: highLifeRules,
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serviette: servietteRules,
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};
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// used to determine the dimensions of the board
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// TODO: should be a Board method
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const max = () => {
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return Math.max(store.board.width, store.board.height);
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};
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const selectedRules = () => {
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return available2dRules[store.selected2dRules.id];
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};
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watch(
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() => store.draw1d,
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(value) => {
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if (value == true) draw1d();
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}
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);
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watch(
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() => store.draw2d,
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(value) => {
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if (value == true) draw2dNew();
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}
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);
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watch(
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() => store.draw2dLast,
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async (value) => {
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if (value == true) await draw2dLast();
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}
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);
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watch(
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() => store.draw2dpicture,
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(value) => {
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if (value == true) draw2dPicture();
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}
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);
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watch(
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() => store.reset,
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(value) => {
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if (value == true) reset();
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}
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);
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onMounted(() => {
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// TODO : butt ugly.
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const canvas = document.getElementById("board-canvas");
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store.renderer.width = canvas.parentElement.clientWidth;
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store.renderer.height = canvas.parentElement.clientHeight;
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store.renderer.canvas = canvas;
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store.renderer.ctx = store.renderer.canvas.getContext("2d", {
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willReadFrequently: true,
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});
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if (typeof OffscreenCanvas != "undefined") {
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store.renderer.workCanvas = new OffscreenCanvas(
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canvas.parentElement.clientWidth,
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canvas.parentElement.clientHeight
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);
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}
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// https://developer.mozilla.org/en-US/docs/Web/API/OffscreenCanvas/OffscreenCanvas#Browser_compatibility
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// Fallback for when offscreenCanvas is unsupported or disabled (Firefox < 44, default for Firefox?)
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else {
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store.renderer.workCanvas = document.createElement("canvas");
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store.renderer.workCanvas.width = canvas.parentElement.clientWidth;
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store.renderer.workCanvas.height = canvas.parentElement.clientHeight;
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}
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store.renderer.workCtx = store.renderer.workCanvas.getContext("2d", {
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willReadFrequently: true,
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});
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store.setBoardWidth();
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store.setBoardHeight();
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});
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// draws the board on the canvas
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const drawCanvas = async (board) => {
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store.renderer.render(board);
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};
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// draw elementary automaton on the canvas based on selected ruleset
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const draw1d = () => {
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const initialState = create1dInitialState(
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store.board,
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store.initial1dState
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);
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const board = createBoard(initialState, store.ruleset1d.rules, max());
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store.board.grid = Object.freeze(board);
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drawCanvas(store.board);
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store.toggleStop();
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};
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// draw 2D automaton on the canvas in a loop
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const draw2d = (board) => {
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drawCanvas(store.board);
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const newBoard = Object.freeze(evolve2d(board.grid, selectedRules()));
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if (store.board.grid == newBoard) store.toggleStop();
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store.board.grid = newBoard;
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};
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// draw 2d automaton in a loop, starting from passed state
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const draw2dNext = async (board) => {
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setTimeout(() => {
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if (!store.canDraw) return;
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draw2d(board);
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return draw2dNext(store.board);
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}, store.renderer.refreshRate);
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};
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// draw 2d automaton from a new state
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const draw2dNew = async () => {
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if (!store.canDraw) return;
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const initialGrid = create2dRandomGrid(
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store.board.width,
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store.board.height
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);
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store.board.grid = Object.freeze(evolve2d(initialGrid, selectedRules()));
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if (store.loop) return draw2dNext(store.board);
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else draw2d(store.board);
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store.toggleStop();
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};
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// draw 2d automaton from the last known generated board
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const draw2dLast = async () => {
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if (!store.canDraw) return;
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if (store.loop) return draw2dNext(store.board);
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else draw2d(store.board);
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store.toggleStop();
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};
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// draw 2d automaton from an uploaded picture.
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// use the picture representation as an initial state
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const draw2dPicture = async () => {
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store.renderer.renderImage(
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store.picture,
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store.renderer.ctx,
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store.renderer.width,
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store.renderer.height
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);
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const resized = store.renderer.renderImage(
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store.picture,
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store.renderer.workCtx,
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store.board.width,
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store.board.height
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);
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const newBoard = picToBoard(resized.data, store.board);
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store.board.grid = Object.freeze(newBoard);
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store.toggleStop();
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};
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const reset = () => {
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store.toggleStop();
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store.board.grid = null;
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store.renderer.reset();
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store.toggleReset();
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};
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</script>
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<template>
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<canvas
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id="board-canvas"
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ref="board-canvas"
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:width="store.renderer.width"
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:height="store.renderer.height"
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/>
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</template>
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<style>
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#canvas-board {
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flex: 1;
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margin: 0 auto;
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}
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</style>
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