Object-Oriented Programming in My Game

What is Object-Oriented Programming?

Object-Oriented Programming (OOP) is a programming style that organizes code into classes and objects.

A class acts like a blueprint, while objects are created from that blueprint.

My game uses OOP to organize:

• the player
• enemies
• NPCs
• scoring systems
• game environments

This makes the code easier to reuse, update, and expand.

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Example 1: Creating a Class

In my game, I created a class called GameScorer.

```javascript class GameScorer { constructor(gameEnv) { this.gameEnv = gameEnv; this.score = 0; this.coinsCollected = 0; } }

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Example 2: Creating Objects (Instantiation)

Objects are created using the new keyword.

gameEnv.gameScorer = new GameScorer(gameEnv);

This creates a new GameScorer object that the game can use during gameplay.

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Example 4: Reusable Enemy System

I used object-oriented design to create reusable enemy objects.

const baseEnemy = { src: sprite_src_enemy, SCALE_FACTOR: 5,

update: function () { const players = this.gameEnv.gameObjects.filter( obj => obj.constructor.name === “Player” ); } };

Explanation

This enemy system:

searches for players follows the nearest player updates enemy movement automatically

The same enemy logic can be reused for multiple enemies.

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