timers

src/signals.odin

@@ -0,0 +1,25 @@
+package shoal
+
+@(private)
+signal_buffer_b: [dynamic]string
+@(private)
+signal_buffer_a: [dynamic]string
+
+write :: proc(name: string) {
+	append(&signal_buffer_b, name)
+}
+
+read :: proc(name: string) -> bool {
+	for s in signal_buffer_a {
+		if s == name {return true}
+	}
+	for s in signal_buffer_b {
+		if s == name {return true}
+	}
+	return false
+}
+
+signal_system :: proc() {
+	signal_buffer_a = signal_buffer_b
+	clear(&signal_buffer_b)
+}

src/systems.odin

@@ -3,9 +3,9 @@ package shoal
 import rl "vendor:raylib"
 
 DefaultPlugin :: proc(app: ^App) {
-	app.systems = make(map[int][dynamic]proc())
-
 	add_system(app, DRAW, draw_sprite)
+	add_system(app, UPDATE, signal_system)
+	add_system(app, UPDATE, run_timers)
 
 	display := spawn_entity(app)
 	add_component(

src/timer.odin

@@ -0,0 +1,38 @@
+package shoal
+
+import "core:fmt"
+import rl "vendor:raylib"
+
+Timer :: struct {
+	lifetime: f32,
+	signal:   string,
+}
+
+@(private)
+timers: [dynamic]Timer
+
+start_timer :: proc(time: f32, signal: string = "") -> int {
+	new_timer: Timer
+	new_timer.lifetime = time
+	append(&timers, new_timer)
+	return len(timers)
+}
+
+get_timer :: proc(index: int) -> Timer {
+	if index <= len(timers) - 1 {
+		return timers[index]
+	}
+	return Timer{}
+}
+
+run_timers :: proc() {
+	for &t, i in timers {
+		t.lifetime -= rl.GetFrameTime()
+		if t.lifetime <= 0 {
+			unordered_remove(&timers, i)
+			if t.signal != "" {
+				write(t.signal)
+			}
+		}
+	}
+}