// 参考 // https://p5js.org/examples/simulate-game-of-life.html let width; let height; let depth; let cellSize; let columns; let rows; let aisles; let boardState; let nextState; let elArray; let onColor = "#333333"; let middleColor = "#9e9e9e"; let offColor = "white"; let caContainer = null; let aScene = null; const initDefinition = () => { width = 15; height = 15; depth = 15; cellSize = 1; columns = Math.floor(width / cellSize); rows = Math.floor(height / cellSize); aisles = Math.floor(depth / cellSize); currentState = new Array(columns); for (let i = 0; i < columns; i++) { currentState[i] = new Array(rows); for (let j = 0; j < rows; j++) { currentState[i][j] = new Array(aisles); } } nextState = new Array(columns); for (i = 0; i < columns; i++) { nextState[i] = new Array(rows); for (let j = 0; j < rows; j++) { nextState[i][j] = new Array(aisles); } } elArray = new Array(columns); for (i = 0; i < columns; i++) { elArray[i] = new Array(rows); for (let j = 0; j < rows; j++) { elArray[i][j] = new Array(aisles); } } }; const initContainerPosition = () => { caContainer = document.getElementById("ca-container"); caContainer.setAttribute("position", `0 1 ${-height * 1.3}`); }; const initAddGrid = () => { for (let x = 0; x < columns; x++) { for (let y = 0; y < rows; y++) { for (let z = 0; z < aisles; z++) { const newEl = document.createElement("a-box"); newEl.setAttribute("color", offColor); newEl.setAttribute( "scale", `${cellSize} ${cellSize} ${cellSize}` ); newEl.setAttribute( "position", `${y - width / 2} ${z - height / 2} ${x - depth / 2}` ); newEl.setAttribute("opacity", 1.0); caContainer.appendChild(newEl); elArray[x][y][z] = newEl; } } } }; const initRandomSet = () => { for (let i = 0; i < columns; i++) { for (let j = 0; j < rows; j++) { for (let k = 0; k < aisles; k++) { if ( i == 0 || j == 0 || k == 0 || i == columns - 1 || j == rows - 1 || k == aisles - 1 ) currentState[i][j][k] = 0; else currentState[i][j][k] = Math.round(Math.random(2)); } } } }; const drawCa = () => { generate(); for (let i = 0; i < columns; i++) { for (let j = 0; j < rows; j++) { for (let k = 0; k < aisles; k++) { if (currentState[i][j][k] == 1) onAttribute(i, j, k); else offAttribute(i, j, k); if (currentState[i][j][k] == 1 && nextState[i][j][k] == 0) middleAttribute(i, j, k); } } } }; const onAttribute = (i, j, k) => { elArray[i][j][k].setAttribute("color", onColor); elArray[i][j][k].setAttribute("opacity", 1); elArray[i][j][k].setAttribute("visible", true); }; const offAttribute = (i, j, k) => { elArray[i][j][k].setAttribute("visible", false); }; const middleAttribute = (i, j, k) => { elArray[i][j][k].setAttribute("color", middleColor); elArray[i][j][k].setAttribute("visible", true); }; function generate() { for (let x = 1; x < columns - 1; x++) { for (let y = 1; y < rows - 1; y++) { for (let z = 1; z < aisles - 1; z++) { let neighbors = 0; for (let i = -1; i <= 1; i++) { for (let j = -1; j <= 1; j++) { for (let k = -1; k <= 1; k++) { neighbors += currentState[x + i][y + j][z + k]; } } } neighbors -= currentState[x][y][z]; // loneliness if (currentState[x][y][z] == 1 && neighbors < 2) nextState[x][y][z] = 0; // overpopulation else if (currentState[x][y][z] == 1 && neighbors > 5) nextState[x][y][z] = 0; // reqroduction else if (currentState[x][y][z] == 0 && neighbors == 5) nextState[x][y][z] = 1; //stasis else nextState[x][y][z] = currentState[x][y][z]; } } } let temp = currentState; currentState = nextState; nextState = temp; } window.onload = () => { initDefinition(); initContainerPosition(); initAddGrid(); initRandomSet(); drawCa(); setInterval(() => { drawCa(); }, 300); };

3d cellular automaton