Init with basic generation of first level a primitive movement

.gitignore

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+.DS_Store
+node_modules
+package-lock.json
+public/bundle*

LICENSE

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+Copyright (c) 2017 [these people](https://github.com/rollup/rollup-starter-app/graphs/contributors)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

package.json

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+{
+  "name": "rollup-starter-app",
+  "devDependencies": {
+    "@rollup/plugin-commonjs": "^17.0.0",
+    "@rollup/plugin-node-resolve": "^11.1.0",
+    "npm-run-all": "^4.1.5",
+    "rollup": "^2.36.2",
+    "rollup-plugin-terser": "^7.0.2",
+    "serve": "^11.3.2"
+  },
+  "dependencies": {
+    "date-fns": "^2.16.1"
+  },
+  "scripts": {
+    "build": "rollup -c",
+    "watch": "rollup -c -w",
+    "dev": "npm-run-all --parallel start watch",
+    "start": "serve public"
+  }
+}

public/index.html

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+<!doctype html>
+<html>
+<head lang='en'>
+	<meta charset='utf-8'>
+	<meta name='viewport' content='width=device-width'>
+	<title>BattleCity.js</title>
+	<script src='bundle.js'></script>
+</head>
+<body>
+	<canvas id="canvas" height="1000" width="1000"></canvas>
+</body>
+</html>

rollup.config.js

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+import resolve from '@rollup/plugin-node-resolve';
+import commonjs from '@rollup/plugin-commonjs';
+import { terser } from 'rollup-plugin-terser';
+
+// `npm run build` -> `production` is true
+// `npm run dev` -> `production` is false
+const production = !process.env.ROLLUP_WATCH;
+
+export default {
+	input: 'src/main.js',
+	output: {
+		file: 'public/bundle.js',
+		format: 'iife', // immediately-invoked function expression — suitable for <script> tags
+		sourcemap: true
+	},
+	plugins: [
+		resolve(), // tells Rollup how to find date-fns in node_modules
+		commonjs(), // converts date-fns to ES modules
+		production && terser() // minify, but only in production
+	]
+};

src/Graphics/Tileset/tile.js

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+export class Tile {
+    constructor(x, y, width, height, id){
+        this.x = x;
+        this.y = y;
+        this.width = width;
+        this.height = height;
+        this.id = id;
+
+        this.isTransperent = false;
+        this.img = null;
+    }
+
+    addImage(img){
+        this.img = img;
+    }
+}

src/Graphics/Tileset/tileset.js

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+import {Tile} from "./tile"
+
+export class Tileset {
+    tiles = [];
+
+    constructor(imageName) { 
+        this.image = new Image();
+        this.image.src = `./${imageName}`;
+    }
+
+    addTile(x, y, width, height, id){
+        this.tiles.push(new Tile(x, y, width, height, id));
+    }
+
+    loadAll() {
+        return new Promise(resolve => { 
+            this.image.onload = (() => {
+                for (let i = 0; i < this.tiles.length; i++) {
+                    let tile = this.tiles[i];
+                    tile.addImage(this.generateImg(tile.x, tile.y, tile.width, tile.height));
+                }
+                resolve("Resolved");
+            })
+        });
+    }
+
+    generateImg(x, y, width, height) {
+        var canvas = document.createElement('canvas');
+        canvas.width = width;
+        canvas.height = height;
+
+        var context = canvas.getContext('2d');
+        context.drawImage(this.image, x, y, width, height, 0, 0, width, height);
+        return canvas;   
+    }
+
+    getImageOf(id){
+        for (let i = 0; i < this.tiles.length; i++){
+            if (this.tiles[i].id == id){
+                return this.tiles[i].img;
+            }
+        }
+        return null;
+    }
+
+    
+}

src/Graphics/map.js

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+export class Map {
+    //0 - empty
+
+    //1 - brick
+    //2 - brick right
+    //3 - brick down
+    //4 - brick left
+    //5 - brick up
+    
+    //6 - steel
+    //7 - steel right
+    //8 - steel down
+    //9 - steel left
+    //10 - steel up
+
+
+    tiles = [
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
+        0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
+        0, 1, 0, 1, 0, 1, 6, 1, 0, 1, 0, 1, 0,
+        0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
+        0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0,
+        3, 0, 3, 3, 0, 0, 0, 0, 0, 3, 3, 0, 3,
+        10, 0, 5, 5, 0, 3, 0, 3, 0, 5, 5, 0, 10,
+        0, 3, 0, 3, 0, 1, 1, 1, 0, 3, 0, 3, 0,
+        0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
+        0, 1, 0, 1, 0, 5, 0, 5, 0, 1, 0, 1, 0,
+        0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0,
+        0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 2, 0, 4, 0, 0, 0, 0, 0
+    ];
+
+
+    constructor() {
+
+    }
+}

src/KeyAdapters/gameKeyAdapterInterface.js

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+export class GameKeyAdapterInterface {
+    handleEvent(ev){}
+}

src/KeyAdapters/tankKeyAdapter.js

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+import { GameKeyAdapterInterface } from "./gameKeyAdapterInterface";
+import Direction from "./../directionEnum";
+
+export class TankKeyAdapter extends GameKeyAdapterInterface{
+
+    constructor(tank){
+        super();
+        this.tank = tank;
+    }
+
+    handleEvent(event){
+        switch(event.key){
+            case "ArrowLeft":
+                this.tank.move(Direction().left);
+                break;
+            case "ArrowRight":
+                this.tank.move(Direction().right);
+                break;
+            case "ArrowUp":
+                this.tank.move(Direction().up);
+                break;
+            case "ArrowDown":
+                this.tank.move(Direction().down);
+                break;
+        }
+
+        console.log(event.key);
+    }
+}

src/canvas.js

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+import {Game} from "./game";
+
+export function init(){
+    const canvas = document.getElementById("canvas");
+    const ctx = canvas.getContext("2d");
+    if (ctx) {
+        const game = new Game(500, 500, ctx, canvas);
+        game.start();
+    }
+}

src/directionEnum.js

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+const DirectionEnum = {"up":1, "left":2, "down": 3, "right": 4};
+Object.freeze(DirectionEnum);
+
+export default function Direction(){
+    return DirectionEnum;
+}

src/game.js

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+import { GameField } from "./gameField";
+import { TankKeyAdapter } from "./KeyAdapters/tankKeyAdapter";
+
+export class Game {
+    constructor(width = 500, height = 500, ctx){
+        this.gameField = new GameField(width, height, ctx, canvas);
+        this.gameKeyAdapter = new TankKeyAdapter(this.gameField.tank);
+    }
+
+    start() {
+        addEventListener("keydown", (ev) => this.gameKeyAdapter.handleEvent(ev));
+        requestAnimationFrame(() => this.gameField.drawField());
+    }
+}

src/gameField.js

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+import {Tileset} from "./Graphics/Tileset/tileset"
+import {Map} from "./Graphics/map";
+import { PlayerTank } from "./playerTank";
+
+export class GameField {
+    TILE_SIZE = 32;
+    GAME_WIDTH = 13;
+    GAME_HEIGHT = 13;
+
+    constructor(width = 512, height = 512, ctx, canvas){
+        this.height = height;
+        this.width = width;
+        this.ctx = ctx;
+        this.canvas = canvas
+        this.tank = new PlayerTank(0,0,0);
+        this.tileset = null;
+    }
+
+    //add all tiles here!
+    async setupTileset(){
+        this.tileset = new Tileset("nesBattle.png");
+
+        //Bricks
+        this.tileset.addTile(512, 0, 32, 31, 1);
+        this.tileset.addTile(545, 0, 30, 31, 2);
+        this.tileset.addTile(577, 0, 30, 31, 3);
+        this.tileset.addTile(607, 0, 30, 31, 4);
+        this.tileset.addTile(640, 0, 32, 31, 5);
+
+        //Metal
+        this.tileset.addTile(512, 32, 32, 31, 6);
+        this.tileset.addTile(544, 32, 32, 31, 7);
+        this.tileset.addTile(576, 32, 32, 31, 8);
+        this.tileset.addTile(608, 32, 32, 31, 9);
+        this.tileset.addTile(640, 32, 32, 31, 10);
+
+        //Tank
+        this.tileset.addTile(0, 0, 32, 32, 101);
+        this.tileset.addTile(64, 0, 32, 32, 102);
+        this.tileset.addTile(128, 0, 32, 32, 103);
+        this.tileset.addTile(192, 0, 32, 32, 104);
+
+        await this.tileset.loadAll();
+    }
+
+    async drawField() {
+        if (!this.tileset){
+            await this.setupTileset();
+            this.canvas.height = this.height;
+            this.canvas.width = this.width;
+        }
+        
+        let map = new Map().tiles;
+
+        for (let x = 0; x < this.GAME_WIDTH; x += 1){
+            for (let y = 0; y <= this.GAME_HEIGHT; y += 1) {
+                let id = map[x + y*this.GAME_WIDTH]; 
+
+                if (id != 0) {
+                    this.ctx.drawImage(this.tileset.getImageOf(id), x*this.TILE_SIZE, y*this.TILE_SIZE, this.TILE_SIZE, this.TILE_SIZE); 
+
+                } else {
+                    this.ctx.fillStyle = "black";
+                    this.ctx.fillRect(x*this.TILE_SIZE, y*this.TILE_SIZE, this.TILE_SIZE, this.TILE_SIZE);
+                }
+            }
+        }
+
+        this.tank.draw(this.tileset, this.ctx, this.TILE_SIZE);
+
+
+        requestAnimationFrame(() => this.drawField());
+    }
+
+}

src/main.js

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+import * as canvas from "./canvas";
+
+addEventListener("load", () => canvas.init());

src/playerTank.js

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+import Direction from "./directionEnum";
+
+export class PlayerTank {
+    
+    constructor(x, y){
+        this.x = x;
+        this.y = y;
+        this.speed = 2.0;
+        this.direction = Direction().up;
+    }
+
+    move(direction){
+        switch(direction){
+            case Direction().up:
+                this.y -= this.speed;
+                this.direction = Direction().up;
+                break;
+
+            case Direction().left:
+                this.x -= this.speed;
+                this.direction = Direction().left;
+                break;
+
+            case Direction().right:
+                this.x += this.speed;
+                this.direction = Direction().right;
+                break;
+
+            case Direction().down:
+                this.y += this.speed;
+                this.direction = Direction().down;
+                break;
+        }
+
+        console.log(this.x + " " + this.y);
+    }
+
+    draw(tileset, ctx, tilesize){
+        ctx.drawImage(tileset.getImageOf(100 + this.direction), this.x, this.y, tilesize, tilesize);
+    }
+    
+}