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index.js
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index.js
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(function () {
var _ground = document.getElementsByClassName("ground")[0];
var _camera = document.getElementsByClassName("camera")[0];
var _step = document.getElementsByClassName("step")[0];
var _perstep = document.getElementsByClassName("per-step")[0];
var _tip = document.getElementsByClassName("tip")[0];
/** 鼠标上次位置 */
var lastX = 0, lastY = 0;
/** 步数 */
var stepCount = 0;
/** 控制一次滑动 */
var isDown = false;
/** 当前位置 */
var position = { x: 0, y: 0 };
/** 上次变换值 */
var lastTransform = {
translateX: '0px',
translateY: '0px',
translateZ: '25px',
rotateX: '0deg',
rotateY: '0deg',
rotateZ: '0deg'
};
/** 下一步转向 */
var nextRotateDir = ["X", "Y"];
/** 所有的转向 */
var allRotateDir = ["X", "Y", "Z"];
/** 障碍物 */
var blockArr = [];
/** 全部路径 */
var stack = [];
/** 监听鼠标按下 */
document.addEventListener("mousedown", (e) => {
lastX = e.clientX;
lastY = e.clientY;
isDown = true;
});
/** 监听鼠标移动 */
document.addEventListener("mousemove", (e) => {
if (!isDown) return;
let _offsetX = e.clientX - lastX;
let _offsetY = e.clientY - lastY;
lastX = e.clientX;
lastY = e.clientY;
// _ground.style.transform = "translateX(-50%) translateY(-50%) rotateX(117deg) rotateZ(160deg)";
var matrix4 = new Matrix4();
var bg_style = document.defaultView.getComputedStyle(_ground, null).transform;
var camera_style = document.defaultView.getComputedStyle(_camera, null).perspectiveOrigin;
var _cy = +camera_style.split(' ')[1].split('px')[0];
console.log("矩阵变换---->>>",bg_style);
var str = bg_style.split("matrix3d(")[1].split(")")[0].split(",");
var oldMartrix4 = str.map((item) => +item);
// console.log("old", oldMartrix4);
var dirH = 1, dirV = 1;
if (_offsetX < 0) {
dirH = -1;
}
if (_offsetY > 0) {
dirV = -1;
}
var angleZ = 2 * dirH;
var newMartri4 = matrix4.set(Math.cos(angleZ * Math.PI / 180), -Math.sin(angleZ * Math.PI / 180), 0, 0, Math.sin(angleZ * Math.PI / 180), Math.cos(angleZ * Math.PI / 180), 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
// var newMartri4_1 = matrix4.set(1, 0, 0, 0, 0, Math.cos(angleX * Math.PI / 180), Math.sin(angleX * Math.PI / 180), 0, 0, -Math.sin(angleX * Math.PI / 180), Math.cos(angleX * Math.PI / 180), 0, 0, 0, 0, 1);
// var newMartri4_1 = matrix4.set(Math.cos(angleX * Math.PI / 180), 0, -Math.sin(angleX * Math.PI / 180), 0, 0, 1, 0, 0, Math.sin(angleX * Math.PI / 180), 0, Math.cos(angleX * Math.PI / 180), 0, 0, 0, 0, 1);
// console.log("new", newMartri4)
var new_mar = null;
if (Math.abs(_offsetX) > Math.abs(_offsetY)) {
new_mar = matrix4.multiplyMatrices(oldMartrix4, newMartri4);
} else {
_camera.style.perspectiveOrigin = `500px ${_cy + 10 * dirV}px`;
}
// console.log(new_mar);
// console.log(`matrix3d(${new_mar.join(',')});`);
new_mar && (_ground.style.transform = `matrix3d(${new_mar.join(',')})`);
});
document.addEventListener("mouseup", (e) => {
isDown = false;
});
//监听键盘
document.onkeydown = function (e) {
/** 移动物体 */
move(e.key);
}
//监听滚轮
// document.addEventListener('mousewheel', (e) => {
// var per = document.defaultView.getComputedStyle(_camera, null).perspective;
// let newper = (+per.split("px")[0] + Math.floor(e.deltaY / 10)) + "px";
// _camera.style.perspective = newper
// }, false);
/** 移动盒子 */
function move(key) {
if (isBlock(key)) return;
const v = getNoneV2Arr(nextRotateDir, allRotateDir);
if (key == "w" || key == "s") {
nextRotateDir[1] = v;
} else {
nextRotateDir[0] = v;
}
var target = document.getElementsByClassName("box-con")[0];
// var target_style = document.defaultView.getComputedStyle(target, null).transform;
// var str = target_style.split("matrix3d(")[1].split(")")[0].split(",");
let lastRotateX = +lastTransform.rotateX.split('deg')[0];
let lastRotateY = +lastTransform.rotateY.split('deg')[0];
let lastRotateZ = +lastTransform.rotateZ.split('deg')[0];
let lastTranslateX = +lastTransform.translateX.split('px')[0];
let lastTranslateY = +lastTransform.translateY.split('px')[0];
let lastTranslateZ = +lastTransform.translateZ.split('px')[0];
let lastRotate = {
lastRotateX, lastRotateY, lastRotateZ, lastTranslateX, lastTranslateY, lastTranslateZ
}
let dir = 1;
console.log("8888-----", nextRotateDir)
let strTransfrom = ""
switch (key) {
case 'w':
position.y++;
lastTransform.translateY = position.y * 50 + 'px';
if (nextRotateDir[0] == "X") {
if (Math.floor(Math.abs(lastRotate.lastRotateZ) / 90) % 2 == 1) {
dir = calRotateDir(lastRotateX, lastRotateZ);
lastTransform[`rotateY`] = (lastRotate[`lastRotateY`] + 90 * dir) + 'deg';
} else {
// dir = calRotateDir(lastRotateY, lastRotateZ);
console.log("dir---88", dir)
lastTransform[`rotateX`] = (lastRotate[`lastRotateX`] - 90 * dir) + 'deg';
}
}
if (nextRotateDir[0] == "Y") {
if (Math.floor(Math.abs(Math.abs(lastRotate.lastRotateZ)) / 90) % 2 == 1) {
dir = calRotateDir(lastRotateY, lastRotateZ);
lastTransform[`rotateX`] = (lastRotate[`lastRotateX`] + 90 * dir) + 'deg';
} else {
dir = calRotateDir(lastRotateX, lastRotateY);
lastTransform[`rotateZ`] = (lastRotate[`lastRotateZ`] + 90 * dir) + 'deg';
}
}
if (nextRotateDir[0] == "Z") {
dir = calRotateDir(lastRotateX, lastRotateY);
lastTransform[`rotate${nextRotateDir[0]}`] = (lastRotate[`lastRotate${nextRotateDir[0]}`] - 90 * dir) + 'deg';
}
break;
case 's':
position.y--;
lastTransform.translateY = position.y * 50 + 'px';
if (nextRotateDir[0] == "X") {
if (Math.floor(Math.abs(lastRotate.lastRotateZ) / 90) % 2 == 1) {
dir = calRotateDir(lastRotateX, lastRotateZ);
lastTransform[`rotateY`] = (lastRotate[`lastRotateY`] - 90 * dir) + 'deg';
} else {
// dir = calRotateDir(lastRotateZ, lastRotateY);
lastTransform[`rotateX`] = (lastRotate[`lastRotateX`] + 90 * dir) + 'deg';
}
}
if (nextRotateDir[0] == "Y") {
if (Math.floor(Math.abs(lastRotate.lastRotateZ) / 90) % 2 == 1) {
dir = calRotateDir(lastRotateZ, lastRotateY);
lastTransform[`rotateX`] = (lastRotate[`lastRotateX`] - 90 * dir) + 'deg';
} else {
// dir = calRotateDir(lastRotateX, lastRotateY);
lastTransform[`rotateZ`] = (lastRotate[`lastRotateZ`] - 90 * dir) + 'deg';
}
}
if (nextRotateDir[0] == "Z") {
dir = calRotateDir(lastRotateX, lastRotateY);
lastTransform[`rotate${nextRotateDir[0]}`] = (lastRotate[`lastRotate${nextRotateDir[0]}`] + 90 * dir) + 'deg';
}
// target.style.transform = `translateX(${position.x * 50}px) translateY(${position.y * 50}px) translateZ(25px) rotateX(${position.y * -90}deg)`;
break;
case 'a':
position.x++;
lastTransform.translateX = position.x * 50 + 'px';
if (nextRotateDir[1] == "X") {
if (Math.floor(Math.abs(lastRotate.lastRotateZ) / 90) % 2 == 1) {
dir = calRotateDir(lastRotateX, lastRotateZ);
lastTransform[`rotateY`] = (lastRotate[`lastRotateY`] + 90 * dir) + 'deg';
} else {
// dir = calRotateDir(lastRotateZ, lastRotateY);
lastTransform[`rotateX`] = (lastRotate[`lastRotateX`] - 90 * dir) + 'deg';
}
}
if (nextRotateDir[1] == "Y") {
if (Math.floor(Math.abs(lastRotate.lastRotateZ) / 90) % 2 == 1) {
dir = calRotateDir(lastRotateZ, lastRotateY);
lastTransform[`rotateX`] = (lastRotate[`lastRotateX`] - 90 * dir) + 'deg';
} else {
// dir = calRotateDir(lastRotateX, lastRotateZ);
console.log("dir---", dir)
lastTransform[`rotateY`] = (lastRotate[`lastRotateY`] + dir * 90) + 'deg';
}
}
if (nextRotateDir[1] == "Z") {
dir = calRotateDir(lastRotateX, lastRotateY);
console.log("dir====", dir)
lastTransform[`rotate${nextRotateDir[1]}`] = (lastRotate[`lastRotate${nextRotateDir[1]}`] - 90 * dir) + 'deg';
}
break;
case 'd':
position.x--;
lastTransform.translateX = position.x * 50 + 'px';
if (nextRotateDir[1] == "X") {
if (Math.floor(Math.abs(lastRotate.lastRotateZ) / 90) % 2 == 1) {
dir = calRotateDir(lastRotateX, lastRotateZ);
lastTransform[`rotateY`] = (lastRotate[`lastRotateY`] + 90 * dir) + 'deg';
} else {
// dir = calRotateDir(lastRotateZ, lastRotateY);
lastTransform[`rotateX`] = (lastRotate[`lastRotateX`] - 90 * dir) + 'deg';
}
}
if (nextRotateDir[1] == "Y") {
if (Math.floor(Math.abs(lastRotate.lastRotateZ) / 90) % 2 == 1) {
dir = calRotateDir(lastRotateZ, lastRotateY);
lastTransform[`rotateX`] = (lastRotate[`lastRotateX`] + 90 * dir) + 'deg';
} else {
// dir = calRotateDir(lastRotateX, lastRotateZ);
lastTransform[`rotateY`] = (lastRotate[`lastRotateY`] - 90 * dir) + 'deg';
}
}
if (nextRotateDir[1] == "Z") {
dir = calRotateDir(lastRotateX, lastRotateY);
lastTransform[`rotate${nextRotateDir[1]}`] = (lastRotate[`lastRotate${nextRotateDir[1]}`] + 90 * dir) + 'deg';
}
// target.style.transform = `translateX(${position.x * 50}px) translateY(${position.y * 50}px) translateZ(25px) rotateY(${position.x * 90}deg)`;
break;
}
//赋值样式
for (let item in lastTransform) {
strTransfrom += item + '(' + lastTransform[item] + ') ';
}
console.log("str--", strTransfrom);
target.style.transform = strTransfrom;
stepCount++;
_step.innerHTML = `${stepCount}步`;
}
/** 棋盘 */
function pan() {
var grid = [
0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0,
0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0,
1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1,
0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1,
0, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0,
0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0,
0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0,
1, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0,
1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0,
0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1,
0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0,
1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0,
1, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0,
0, 0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0
];
console.log(grid.length);
const con = document.getElementsByClassName("pan")[0];
const block = document.getElementsByClassName("block")[0];
let elArr = [];
grid.forEach((item, index) => {
let r = Math.floor(index / 15);
let c = index % 15;
const gezi = document.createElement("div");
gezi.classList = "pan-item"
// gezi.innerHTML = `${r},${c}`
con.appendChild(gezi);
var newBlock = block.cloneNode(true);
// console.log(panArr[r][c])
if (item == 1) {
gezi.appendChild(newBlock);
blockArr.push(c + "-" + r);
}
elArr.push(gezi);
});
const panArr = arrTrans(15, grid);
return { elArr, panArr };
}
const panData = pan();
const { elArr, panArr } = panData;
// console.log(elArr)
var step = getShortPath(panArr, { x: 0, y: 0 }, { x: 14, y: 14 }, 0);
console.log("最短距离----", step);
_perstep.innerHTML = `请在<span>${step}</span>步内走到终点`;
var path = recall({ x: 14, y: 14 });
console.log("路径---", path);
/** 提示 */
var tipCount = 0;
_tip.addEventListener("click", () => {
console.log("9999", tipCount)
elArr.forEach((item, index) => {
let r = Math.floor(index / 15);
let c = index % 15;
path.forEach((_item, i) => {
if (_item.x == r && _item.y == c) {
// console.log("ooo",_item)
if (tipCount % 2 == 0)
item.classList = "pan-item pan-path";
else
item.classList = "pan-item";
}
})
});
tipCount++;
})
/**
* BFS 实现寻路
* @param {*} grid
* @param {*} start {x: 0,y: 0}
* @param {*} end {x: 3,y: 3}
*/
function getShortPath(grid, start, end, a) {
let maxL_x = grid.length;
let maxL_y = grid[0].length;
let queue = new Queue();
let step = 0;
//上左下右
let dx = [1, 0, -1, 0];
let dy = [0, 1, 0, -1];
//加入第一个元素
queue.enqueue(start);
//存储一个一样的用来排查是否遍历过
let mem = new Array(maxL_x);
for (let n = 0; n < maxL_x; n++) {
mem[n] = new Array(maxL_y);
mem[n].fill(10000);
}
while (!queue.isEmpty()) {
// console.log(queue)
// stack.push(queue);
let p = [];
for (let i = queue.size(); i > 0; i--) {
// console.log(0)
let preTraget = queue.dequeue();
p.push(preTraget);
//找到目标
if (preTraget.x == end.x && preTraget.y == end.y) {
stack.push(p);
return step;
}
for (let j = 0; j < 4; j++) {
let nextX = preTraget.x + dx[j];
let nextY = preTraget.y + dy[j];
if (nextX < maxL_x && nextX >= 0 && nextY < maxL_y && nextY >= 0) {
let nextTraget = { x: nextX, y: nextY };
// console.log("坐标", nextX, nextY, grid[1][0])
if (grid[nextX][nextY] == a && a < mem[nextX][nextY]) {
queue.enqueue({ ...nextTraget, f: { x: preTraget.x, y: preTraget.y } });
mem[nextX][nextY] = a;
}
}
}
}
stack.push(p);
step++;
}
}
/** 寻找到路径 */
function recall(end) {
let path = [];
let front = { x: end.x, y: end.y };
while (stack.length) {
let item = stack.pop();
for (let i = 0; i < item.length; i++) {
if (!item[i].f) break;
if (item[i].x == front.x && item[i].y == front.y) {
path.push({ x: item[i].x, y: item[i].y });
front.x = item[i].f.x;
front.y = item[i].f.y;
break;
}
}
}
return path;
}
/** 是否是障碍 */
function isBlock(dir) {
let str;
if (dir == "w") {
if (position.y + 1 > 14) {
return true;
}
str = position.x + "-" + (position.y + 1);
}
if (dir == "s") {
if (position.y - 1 < 0) {
return true;
}
str = position.x + "-" + (position.y - 1);
}
if (dir == "a") {
if (position.x + 1 > 14) {
return true;
}
str = (position.x + 1) + "-" + position.y;
}
if (dir == "d") {
if (position.x - 1 < 0) {
return true;
}
str = (position.x - 1) + "-" + position.y;
}
if (blockArr.indexOf(str) > -1) {
return true;
}
return false;
}
})();
//确认旋转轴
function calRotateDir(angle1, angle2) {
console.log("两个角度----", angle1, angle2)
if (angle2 + angle1 >= 0) return -1;
if (angle2 + angle1 < 0) return 1;
if (angle1 < 0 || angle2 < 0) return -1;
let a = Math.floor(angle1 / 180);
let b = Math.floor(angle2 / 180);
console.log(a, b)
return Math.abs(a + b) % 2 == 0 ? 1 : -1;
}
//获取数组中没有的v
function getNoneV2Arr(arr1, arr2) {
var v = "";
for (let i = 0; i < arr2.length; i++) {
if (arr1.indexOf(arr2[i]) == -1) {
v = arr2[i];
break;
}
}
return v;
}
/** 对列 */
function Queue() {
this.items = [];
//1. 将元素加到元素中
Queue.prototype.enqueue = function (el) {
this.items.push(el);
}
//2.从队列中删除元素
Queue.prototype.dequeue = function () {
return this.items.shift();
}
//3.查看元素
Queue.prototype.front = function () {
return this.items[0];
}
//4.是否为空
Queue.prototype.isEmpty = function () {
return this.items.length == 0;
}
//5.长度
Queue.prototype.size = function () {
return this.items.length;
}
}
/** 一维数组转二维数组 */
function arrTrans(num, arr) {
const newArr = [];
while (arr.length > 0) {
newArr.push(arr.splice(0, num));
}
return newArr;
}