GameFramework

Introduction

The game Framework is a set of foundation components scripts and classes that provide basic structure and functions to a game. It is a core library aimed to help the dev of a game for its paticular needs.

Goal

Hide as much as possible low-level details of the game engine. Help solve tricky problems in game dev (entity movement, user/ai input, etc.) Reduce boilerplate code.

Concepts

Here is a list of general concepts in the game framework

Entity

Entities represent any game object in a game world. Ranging from Characters to triggers to logical units. They are made up of components.

Characteristics:

• Entity in a game level
• Uniquely identified with an Id
• Not a precise object (not an instance of class Entity in memory)
• Supports network replication for multiplayer games
• Can be constructed from prefab, custom designed definitions.
• can be destroyed (destory(entityId) ) or spawned ( spawn(entityId) )

Components

• Reusable functionality that can be added to an Entity
• Example: Engine Components: - TransformComponent: Adds a position to an entity - PhysicsComponent: Adds physics collisions (Colliders and physics body) - Sprite Component : Adds a sprite to visually represent the entity GameFramework Components: - HealthComponent : Health Points - DirectionComponent: Direction the entity is facing - ScriptComponent: Adds a series of script to give reusable entity specific behaviours. - Mostly used for behaviours and input control

Events

Represents events that can happen during the game.

• CollisionEvent: collision between two entities
• InputEvents: An Input has been triggered.

Character

• Special Kind of entity behaving as an agent in the world altering the state of the world.
• Handles movement and input
• can usually walk

Controller

• A brain that lets the entity behave

• PlayerController: Brain controlled by a human player

• AIController: Brain controlled by AI behaviours

• is A component attached to a single entity at a time.

PlayerController

• Interface for players to agents
• Handles user Input (click, keyboard, gamepad)