50 lines
962 B
Go
50 lines
962 B
Go
package system
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import (
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"code.rocketnine.space/tslocum/citylimits/component"
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"code.rocketnine.space/tslocum/citylimits/world"
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"code.rocketnine.space/tslocum/gohan"
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"github.com/hajimehoshi/ebiten/v2"
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)
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type TickSystem struct {
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}
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func NewTickSystem() *TickSystem {
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s := &TickSystem{}
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return s
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}
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func (s *TickSystem) Needs() []gohan.ComponentID {
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return []gohan.ComponentID{
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component.PositionComponentID,
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component.VelocityComponentID,
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component.WeaponComponentID,
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}
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}
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func (s *TickSystem) Uses() []gohan.ComponentID {
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return nil
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}
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func (s *TickSystem) Update(_ *gohan.Context) error {
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if world.World.Paused {
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return nil
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}
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world.World.Ticks++
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// Update date display.
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if world.World.Ticks%world.MonthTicks == 0 {
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world.World.HUDUpdated = true
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}
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if world.World.Ticks%144 == 0 {
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world.TickMessages()
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}
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return nil
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}
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func (s *TickSystem) Draw(ctx *gohan.Context, screen *ebiten.Image) error {
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return gohan.ErrSystemWithoutDraw
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}
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