abstract class Scar::System

• Scar::System
• Reference
• Object

Overview

Base class for Systems

Systems define behaviours in the application e. g. player movement, ai updates, ..

Example usage:

class MySystem < Scar::System
  def init(app, space)
    puts "MySystem initialized!"
  end

  def update(app, space, dt)
    # Move the player entity
    space["player"].move(Vec.new(10, 0) * dt)
  end

  def render(app, space, dt)
    puts "Executing custom rendering logic..."
  end
end

Direct Known Subclasses

• Scar::Systems::AnimateSprites

Defined in:

scar/system.cr

Instance Method Summary

• #init(app : App, space : Space)

  Override this for one-time initialization

• #initialized : Bool

  This property keeps track of wether #init has been called

• #initialized=(initialized : Bool)

  This property keeps track of wether #init has been called

• #render(app : App, space : Space, dt)

  Override this for custom rendering logic

• #update(app : App, space : Space, dt)

  Override this for any behaviour you want in you application

Instance Method Detail