added Timer, Particle Render Delay (via Particle.Show) +new sprites

components/components.go

@@ -11,6 +11,7 @@ type Renderable struct {
 }
 
 type Particle struct {
+	Show      bool
 	Index     int
 	Particles []*ebiten.Image
 }

components/timer.go

@@ -0,0 +1,41 @@
+package components
+
+import (
+	"time"
+
+	"github.com/hajimehoshi/ebiten/v2"
+)
+
+type Timer struct {
+	currentTicks int
+	targetTicks  int
+}
+
+func NewTimer(d time.Duration) *Timer {
+	return &Timer{}
+}
+
+func (timer *Timer) Start(d time.Duration) {
+	min := int(1000 / ebiten.TPS()) // 16.66ms == 1 tick
+	useD := d
+
+	if int(d.Milliseconds()) < min {
+		useD = time.Duration(1000/ebiten.TPS()) * time.Millisecond
+	}
+
+	timer.targetTicks = int(useD.Milliseconds()) / min // id d=50, then 50 / 16.6 =
+}
+
+func (t *Timer) Update() {
+	if t.currentTicks < t.targetTicks {
+		t.currentTicks++
+	}
+}
+
+func (t *Timer) IsReady() bool {
+	return t.currentTicks >= t.targetTicks
+}
+
+func (t *Timer) Reset() {
+	t.currentTicks = 0
+}