Add different enemy types (Runner)

game/enemy.odin

@@ -12,8 +12,41 @@ Enemy :: struct {
 	path_index: int,
 	base_speed: f32,
 	slow_timer: f32,
+	kind:       Enemy_Kind,
 }
 
+Enemy_Kind :: enum {
+	Grunt,
+	Runner,
+}
+
+Enemy_Archetype :: struct {
+	kind:   Enemy_Kind,
+	health: int,
+	speed:  f32,
+	color:  rl.Color,
+}
+
+get_enemy_archetype :: proc(kind: Enemy_Kind, wave: int) -> Enemy_Archetype {
+	switch kind {
+	case .Grunt:
+		return {
+			kind = .Grunt,
+			health = 15 + wave * 5,
+			speed = 55 + f32(wave) * 5,
+			color = rl.MAROON,
+		}
+	case .Runner:
+		return {
+			kind = .Runner,
+			health = 10 + wave * 2,
+			speed = 95 + f32(wave) * 3,
+			color = rl.ORANGE,
+		}
+	}
+
+	return {}
+}
 acquire_enemy :: proc(world: ^World) -> ^Enemy {
 	// create an object pool with fixed slots to reuse instead of allocate/free every spawn
 	for i in 0 ..< MAX_ENEMIES {
@@ -25,29 +58,25 @@ acquire_enemy :: proc(world: ^World) -> ^Enemy {
 	return nil
 }
 
-spawn_enemy :: proc(world: ^World, health: int, speed: f32) {
+spawn_enemy :: proc(world: ^World, kind: Enemy_Kind) {
 	if len(world.path) == 0 do return // don't spawn enemies if no paths exist
 
 	e := acquire_enemy(world) // grab a free slot
 	if e == nil do return // if there are no slots, skil spawning
 
+	arch := get_enemy_archetype(kind, world.wave)
 	e^ = Enemy {
 		position   = world.path[0],
-		health     = health,
-		max_health = health,
-		base_speed = speed,
+		health     = arch.health,
+		max_health = arch.health,
+		base_speed = arch.speed,
 		slow_timer = 0,
 		path_index = 1,
+		kind       = kind,
 		active     = true,
 	}
 }
 
-spawn_group :: proc(world: ^World, count: int) {
-	for _ in 0 ..< count {
-		spawn_enemy(world, 20, 60)
-	}
-}
-
 update_enemies :: proc(world: ^World, dt: f32) {
 	for i in 0 ..< MAX_ENEMIES {
 		e := &world.enemies[i]
@@ -90,7 +119,14 @@ render_enemies :: proc(world: ^World) {
 	for i in 0 ..< MAX_ENEMIES {
 		e := world.enemies[i]
 		if !e.active do continue
-		rl.DrawCircle(i32(e.position.x), i32(e.position.y), 11, rl.MAROON)
+		color := rl.MAROON
+		switch e.kind {
+		case .Grunt:
+			color = rl.MAROON
+		case .Runner:
+			color = rl.ORANGE
+		}
+		rl.DrawCircle(i32(e.position.x), i32(e.position.y), 11, color)
 		if e.slow_timer > 0 {
 			rl.DrawCircleLines(i32(e.position.x), i32(e.position.y), 14, rl.SKYBLUE)
 		}

game/wave.odin

@@ -11,6 +11,7 @@ Wave_Spawner :: struct {
 	enemies_to_spawn: int,
 	spawn_timer:      f32,
 	spawn_interval:   f32,
+	spawn_count:      int,
 }
 
 start_wave :: proc(world: ^World) {
@@ -30,10 +31,13 @@ update_wave :: proc(world: ^World, dt: f32) {
 	if len(world.path) < 2 do return
 
 	world.spawner.spawn_timer -= dt
+	kind := Enemy_Kind.Grunt
+	if world.spawner.spawn_count % 3 == 2 do kind = .Runner
 	if world.spawner.spawn_timer <= 0 {
 		health := 15 + world.wave * 5
 		speed := 55 + f32(world.wave) * 5
-		spawn_enemy(world, health, speed)
+		spawn_enemy(world, kind)
+		world.spawner.spawn_count += 1
 		world.spawner.enemies_to_spawn -= 1
 		world.spawner.spawn_timer = world.spawner.spawn_interval
 	}