Very simple particle system.

src/particle_manager.odin

@@ -0,0 +1,40 @@
+package game
+
+import rl "vendor:raylib"
+
+Particle :: struct {
+	pos:   rl.Vector2,
+	vel:   rl.Vector2,
+	color: rl.Color,
+	life:  f32,
+	max_life: f32,
+	size:  f32
+}
+
+update_particles :: proc(particles: ^[dynamic]Particle, dt: f32) {
+	#reverse for &p, i in particles {
+		p.life -= dt	
+		if p.life <= 0 {
+			unordered_remove(particles, i)
+			continue
+		}
+
+		// update live particles
+		p.pos += p.vel * dt
+
+		// times the velocitt so we can slow it down over time
+		p.vel *= 0.92 
+	}	
+}
+
+render_particles :: proc(particles: [dynamic]Particle) {
+	rl.BeginBlendMode(.ADDITIVE)
+
+	for p in particles {
+		alpha := u8(255 * (p.life / p.max_life))
+		col := rl.Color{p.color.r, p.color.g, p.color.b, alpha}
+		rl.DrawRectangleV(p.pos, {p.size, p.size}, col)
+	}
+
+	rl.EndBlendMode()
+}