package system

import (
    "github.com/yohamta/donburi"
    "github.com/yohamta/donburi/filter"

    gameComponent "<module>/component"
    engineComponent "github.com/TheLazyLemur/engine/engine/component"
    engineScene "github.com/TheLazyLemur/engine/engine/scene"
    sys "github.com/TheLazyLemur/engine/engine/system"
)

type <Name>System struct{}

func (s *<Name>System) Update(world donburi.World, scene *engineScene.Scene, dt float32) {
    query := donburi.NewQuery(filter.Contains(
        engineComponent.Transform,
        gameComponent.<Required>,
    ))

    for entry := range query.Iter(world) {
        transform := engineComponent.Transform.Get(entry)
        data := gameComponent.<Required>.Get(entry)

        // Logic here...

        transform.MarkDirty() // If position changed
    }
}

func (s *<Name>System) Mode() sys.SystemMode { return sys.SystemModeRuntime }
func (s *<Name>System) Name() string { return "<Name>" }

e.RegisterSystem(&gameSystem.<Name>System{})