class ECS::Filter

• ECS::Filter
• Reference
• Object

Overview

Allows to iterate over entities with specified conditions. Created by call world.new_filter or just by adding any conditions to world. Following conditions are possible:

• entity must have ALL listed components: filter.all_of([Comp1, Comp2]), filter.of(Comp1)
• entity must have AT LEAST ONE of listed components: filter.any_of([Comp1, Comp2])
• entity must have NONE of listed components: filter.exclude([Comp1, Comp2]), filter.exclude(Comp1)
• specified Proc must return true when called on entity: filter.select { |ent| ent.getComp1.size > 1 } conditions can be specified in any order, multiple conditions of same type are allowed

Included Modules

• ECS::AbstractFilter

Defined in:

myecs.cr

Instance Method Summary

• #all_of(list)

  Adds a condition that entity must have ALL listed components.

• #any_of(list)

  Adds a condition that entity must have AT LEAST ONE of specified components.

• #each_entity(& : Entity -> )

  Calls a block once for each entity that match the filter.

• #exclude(item : ComponentType)

  Adds a condition that entity must not have specified component.

• #exclude(list)

  Adds a condition that entity must have NONE of listed components.

• #of(item : ComponentType)

  Adds a condition that entity must have specified component.

• #satisfy(entity : Entity) : Bool

  Returns true if entity satisfy the filter

• #select(&block : Entity -> Bool)

  Adds a condition that specified Proc must return true when called on entity.

Instance Method Detail