citylimits/system/tax.go

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2022-01-23 06:04:12 +00:00
package system
import (
"code.rocketnine.space/tslocum/citylimits/component"
"code.rocketnine.space/tslocum/citylimits/world"
"code.rocketnine.space/tslocum/gohan"
"github.com/hajimehoshi/ebiten/v2"
)
type TaxSystem struct {
}
func NewTaxSystem() *TaxSystem {
s := &TaxSystem{}
return s
}
func (s *TaxSystem) Needs() []gohan.ComponentID {
return []gohan.ComponentID{
component.PositionComponentID,
component.VelocityComponentID,
component.WeaponComponentID,
}
}
func (s *TaxSystem) Uses() []gohan.ComponentID {
return nil
}
func (s *TaxSystem) Update(_ *gohan.Context) error {
if world.World.Paused {
return nil
}
if world.World.Ticks%world.YearTicks != 0 {
return nil
}
for _, zone := range world.World.Zones {
if !zone.Powered {
continue
}
_ = zone
}
return nil
}
func (s *TaxSystem) Draw(ctx *gohan.Context, screen *ebiten.Image) error {
return gohan.ErrSystemWithoutDraw
}