diff options
Diffstat (limited to 'lib/felecs')
| -rw-r--r-- | lib/felecs/entity_manager.rb | 33 | ||||
| -rw-r--r-- | lib/felecs/version.rb | 2 |
2 files changed, 34 insertions, 1 deletions
diff --git a/lib/felecs/entity_manager.rb b/lib/felecs/entity_manager.rb index a457ed2..c1f8cd8 100644 --- a/lib/felecs/entity_manager.rb +++ b/lib/felecs/entity_manager.rb @@ -100,6 +100,39 @@ module FelECS # def to_json() end class << self + # Selects every entity that has components of they type passed into + # this function and then executes the code block for those components + # and entities. + # @return [Nil] + def group(*component_managers, &block) + return nil if component_managers.empty? + if component_managers.length == 1 + component_managers.first.each do |cmp| + block.call(cmp, cmp.entity) + end + else + arry = component_managers.first.select do |cmp| + ent = cmp.entity + keep = true + component_managers.drop(1).each do |mgr| + next unless ent.components[mgr].nil? + keep = false + break + end + keep + end + arry.each do |cmp| + ent = cmp.entity + cmp_arry = [cmp] + component_managers.drop(1).each do |cmp_mgr| + cmp_arry.push ent.component[cmp_mgr] + end + block.call(*cmp_arry, ent) + end + end + nil + end + # Makes component managers behave like arrays with additional # methods for managing the array # @!visibility private diff --git a/lib/felecs/version.rb b/lib/felecs/version.rb index 295b905..507e0f1 100644 --- a/lib/felecs/version.rb +++ b/lib/felecs/version.rb @@ -4,6 +4,6 @@ # Keeps the version of the Gem module FelECS # The version of the Gem - VERSION = '5.0.0' + VERSION = '5.0.1' end # :nocov: |