added enemy state machine with idle, stunned, and dead states

project.godot

@@ -12,7 +12,7 @@ config_version=5
 
 config/name="First Person Test"
 config/tags=PackedStringArray("fps")
-run/main_scene="uid://f7e0v1r6ra6c"
+run/main_scene="uid://bk4pn4k7n51ux"
 config/features=PackedStringArray("4.4", "Forward Plus")
 config/icon="uid://6svuq1l83al5"
 

scenes/enemy_working_scene.tscn

@@ -28,7 +28,7 @@ script = ExtResource("1_8cuhv")
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -31.749, 0, 44.3496)
 script = ExtResource("5_ngmqi")
 room_lockdown = true
-number_of_enemies = 25
+number_of_enemies = 100
 number_of_drops = 30
 
 [node name="EnemySpawner" parent="Level" instance=ExtResource("3_q77vb")]

scripts/EnemyIdle.gd

@@ -0,0 +1,50 @@
+extends EnemyState
+class_name EnemyIdle
+
+
+var move_direction : Vector3
+var scan_direction : float
+
+var wander_time : float
+var scan_time : float
+
+const WANDER_AMT = 50
+const TURRET_TURN_AMT : float = 180.0
+
+func randomize_wander():
+	var x = randf_range(-WANDER_AMT,WANDER_AMT)
+	var z = randf_range(-WANDER_AMT,WANDER_AMT)
+	move_direction = enemy.global_position + Vector3(x,0,z)
+	enemy.nav_agent.set_target_position(move_direction)
+	wander_time = randf_range(1,3)
+
+func randomize_turret_scan():
+	scan_direction = randf_range(-TURRET_TURN_AMT,TURRET_TURN_AMT)
+	scan_time = randf_range(1,3)
+
+func _Enter():
+	randomize_wander()
+
+func Update(delta: float):
+	if wander_time > 0:
+		wander_time -= delta
+	else:
+		randomize_wander()
+	
+	if scan_time > 0:
+		scan_time -= delta
+	else:
+		randomize_turret_scan()
+
+func Physics_Update(delta : float):
+	if enemy:
+		var destination = enemy.nav_agent.get_next_path_position()
+		var local_destination = destination - enemy.global_position
+		var direction = local_destination.normalized()
+		if enemy.global_position.distance_to(local_destination) > 1:
+			enemy.velocity = direction * move_speed
+			enemy.spider_look_next.look_at(destination)
+			var look_target = enemy.spider_look_next.global_rotation.y
+			enemy.global_rotation.y = lerp(enemy.global_rotation.y,look_target,delta * 3)
+		
+		enemy.turret.rotation.y = lerp(enemy.turret.rotation.y,deg_to_rad(scan_direction),delta)

scripts/EnemyIdle.gd.uid

@@ -0,0 +1 @@
+uid://eiw16yqbsj2s

scripts/EnemyStates.gd

@@ -0,0 +1,24 @@
+extends State
+class_name EnemyState
+
+@export var enemy : CharacterBody3D
+@export var enemy_targets : Array[Area3D]
+@export var move_speed : float = 3
+
+func Enter():
+	if enemy_targets != null:
+		for target in enemy_targets:
+			target.body_part_hit.connect(take_damage)
+
+func take_damage(dam,bullet_damage):
+	SignalBus.emit_signal("enemy_hit")
+	enemy.health -= dam * bullet_damage
+	enemy.health_bar_sprite.visible = true
+	enemy.health_bar_sprite.health_update()
+	var number_spawn = enemy.damage_number.instantiate()
+	number_spawn.damage_amt = bullet_damage * dam
+	number_spawn.position = enemy.global_position + Vector3(0,2,0)
+	get_tree().get_root().add_child(number_spawn)
+	
+	if enemy.health <= 0:
+		Transitioned.emit(self,"die")

scripts/EnemyStates.gd.uid

@@ -0,0 +1 @@
+uid://dhxolagi0b5s1

scripts/EnemyTarget.gd

@@ -2,28 +2,10 @@ extends Area3D
 
 @export var damage : float = 1
 
-var damage_number = preload("res://assets/damage_number.tscn")
-
 signal body_part_hit(dam,bullet_damage)
 
-# Called when the node enters the scene tree for the first time.
-func _ready():
-	pass # Replace with function body.
-
-
-# Called every frame. 'delta' is the elapsed time since the previous frame.
-func _process(delta):
-	pass
-
 func hit(bullet_damage):
 	emit_signal("body_part_hit", damage, bullet_damage)
-	SignalBus.emit_signal("enemy_hit")
-	
-	var number_spawn = damage_number.instantiate()
-	number_spawn.damage_amt = bullet_damage * damage
-	number_spawn.position = global_position + Vector3(0,2,0)
-	get_tree().get_root().add_child(number_spawn)
 
 func _on_body_entered(body: Node3D) -> void:
 	hit(body.bullet_damage)
-	SignalBus.emit_signal("enemy_hit")

scripts/State.gd

@@ -0,0 +1,16 @@
+extends Node
+class_name State
+
+signal Transitioned
+
+func Enter():
+	pass
+
+func Exit():
+	pass
+
+func Update(_delta : float):
+	pass
+
+func Physics_Update(_delta : float):
+	pass

scripts/State.gd.uid

@@ -0,0 +1 @@
+uid://bftaqmh54r3ib

scripts/StateMachine.gd

@@ -0,0 +1,39 @@
+extends Node
+
+@export var initial_state : State
+
+var current_state : State
+var states : Dictionary = {}
+
+func _ready() -> void:
+	for child in get_children():
+		if child is State:
+			states[child.name.to_lower()] = child
+			child.Transitioned.connect(on_child_transition)
+	
+	if initial_state:
+		initial_state.Enter()
+		current_state = initial_state
+
+func _process(delta: float) -> void:
+	if current_state:
+		current_state.Update(delta)
+
+func _physics_process(delta: float) -> void:
+	if current_state:
+		current_state.Physics_Update(delta)
+
+func on_child_transition(state,new_state_name):
+	if state != current_state:
+		return
+		
+	var new_state = states.get(new_state_name.to_lower())
+	if !new_state:
+		return
+	
+	if current_state:
+		current_state.Exit()
+		
+	new_state.Enter()
+	
+	current_state = new_state

scripts/StateMachine.gd.uid

@@ -0,0 +1 @@
+uid://csju024nerln6

scripts/enemy_die.gd

@@ -0,0 +1,60 @@
+extends EnemyState
+
+const MAX_LV = 10
+const MAX_AV = 10
+
+func Enter():
+	drop_loot()
+
+func die():
+	#remove from parent array
+	var particlespawn = enemy.die_particles.instantiate()
+	particlespawn.position = enemy.global_position
+	particlespawn.transform.basis = enemy.global_transform.basis
+	for particle in particlespawn.get_children():
+		if particle is RigidBody3D:
+			particle.linear_velocity += random_av_lv()["linear_velocity"]
+			particle.angular_velocity += random_av_lv()["angular_velocity"]
+	get_tree().get_root().add_child(particlespawn)
+	
+	if GameGlobals.last_hit_path == str(get_path()):
+		GameGlobals.last_hit_path = null
+		
+	SignalBus.emit_signal("enemy_killed")
+	enemy.queue_free()
+	
+func drop_loot():
+	var number_of_drops = enemy.loot_amount
+	#pickup drop
+	while number_of_drops > 0:
+		
+		var pickup_spawn = enemy.level_control.ITEM_PICKUP.instantiate()
+		var item_stats = enemy.level_control.pickup_spawn(false)
+		
+		##SET VARIABLES
+		pickup_spawn.pickup_type = item_stats["pickup_type"]
+		pickup_spawn.ammo_type = item_stats["ammo_type"]
+		pickup_spawn.value = item_stats["value"]
+		
+		
+		# Random Item Drop
+		pickup_spawn.position = enemy.global_position + Vector3(0,2,0) #added height to spawn location since origin is on the ground
+		pickup_spawn.transform.basis = enemy.global_transform.basis
+		pickup_spawn.linear_velocity += enemy.global_transform.basis * random_av_lv()["linear_velocity"]
+		pickup_spawn.angular_velocity += enemy.global_transform.basis * random_av_lv()["angular_velocity"]
+		await get_tree().create_timer(.05).timeout
+		get_tree().get_root().add_child(pickup_spawn)
+		number_of_drops -= 1
+
+	await number_of_drops <= 0
+	die()
+	
+func random_av_lv():
+	var lv_x = randf_range(-MAX_LV,MAX_LV)
+	var lv_y = randf_range(-MAX_LV,MAX_LV)
+	var lv_z = randf_range(-MAX_LV,MAX_LV)
+	var av_x = randf_range(-MAX_AV,MAX_AV)
+	var av_y = randf_range(-MAX_AV,MAX_AV)
+	var av_z = randf_range(-MAX_AV,MAX_AV)
+	
+	return {"linear_velocity":Vector3(lv_x,lv_y,lv_z),"angular_velocity":Vector3(av_x,av_y,av_z)}

scripts/enemy_die.gd.uid

@@ -0,0 +1 @@
+uid://bgxdpmc0ra6ic

scripts/enemy_stunned.gd

@@ -0,0 +1,12 @@
+extends EnemyState
+class_name EnemyStunned
+
+@export var stunned_stars : Node
+
+func _Enter():
+	if stunned_stars:
+		stunned_stars.visible = true
+
+func _Exit():
+	if stunned_stars:
+		stunned_stars.visible = false

scripts/enemy_stunned.gd.uid

@@ -0,0 +1 @@
+uid://cldu3lpegcuie

scripts/player.gd

@@ -270,7 +270,7 @@ func _physics_process(delta):
 					crouch_audio.play()
 					velocity += direction * 20
 				else:
-					velocity.y -= 15
+					velocity.y -= 25
 		
 		#walking
 		if is_on_floor() and !is_climbing:

scripts/room_manager.gd

@@ -26,39 +26,7 @@ func _ready():
 
 # Called every frame. 'delta' is the elapsed time since the previous frame.
 func _process(delta):
-	if GameGlobals.game_loaded:
+	pass
-		if enemies.size() > 0:
-			#calculate move position for each child
-			for i in enemies:
-				if i.player_in_view == true:
-					#by number of minions determine the amount they should rotate around the player to be evenly distributed
-					number_enemies = enemies.size()
-					
-					#return current array index
-					var enemy_rot_amount = enemies.find(i) * deg_to_rad(360 / number_enemies)
-					var player_pos = i.player.global_transform.origin
-					var enemy_pos = player_pos + Vector3(4,0,0)
-					var nav_pos : Vector3
-					
-					nav_pos.x = player_pos.x + (enemy_pos.x-player_pos.x)*cos(enemy_rot_amount) - (enemy_pos.z-player_pos.z)*sin(enemy_rot_amount)
-					nav_pos.z = player_pos.z + (enemy_pos.x-player_pos.x)*sin(enemy_rot_amount) - (enemy_pos.z-player_pos.z)*cos(enemy_rot_amount)
-					
-					i.nav_agent.set_target_position(nav_pos)
-					var next_nav_point = i.nav_agent.get_next_path_position()
-					
-					i.hive_velocity = (next_nav_point - i.global_transform.origin).normalized() * i.SPEED
-				elif i.player_in_view != true and i.player_last_seen != null:
-					i.nav_agent.set_target_position(i.player_last_seen)
-					var next_nav_point = i.nav_agent.get_next_path_position()
-					i.hive_velocity = (next_nav_point - i.global_transform.origin).normalized() * i.SPEED
-			
-			# loot on last enemy
-			if enemies.size() == 1:
-				for i in enemies:
-					i.loot_amount = number_of_drops #assign loot to the last enemy drop from this section
-					i.last_enemy = true
-		else:
-			enemy_in_room_killed()
 
 func assign_elements():
 	for i in self.get_children():

scripts/spider.gd

@@ -5,12 +5,10 @@ signal last_enemy_dead()
 
 var player
 var last_enemy : bool = false
-
 @export var start_health = 3
 @export var SPEED = 3.0
 @export var loot_amount = 2
-const MAX_LV = 10
+@export var nav_agent : NavigationAgent3D
-const MAX_AV = 10
 
 @export_enum("Enemy", "Trap") var enemy_type: int
 @export var bullet : Resource
@@ -20,17 +18,13 @@ const MAX_AV = 10
 @export var random_spread_amt = .01
 @export var bullet_damage = 1
 @export var turret_look_speed = 6
-@export var stamina : Resource
-@export var ammo : Resource
-@export var money : Resource
-@export var health_pickup : Resource
 @export var die_particles : Resource
 @export var damage_number : Resource
 @export_group("Taunts")
 @export var taunts : Array[String] = []
 
+
 @onready var level_control = get_tree().current_scene
-@onready var nav_agent = $NavigationAgent3D
 @onready var movement_shape = $MovementShape
 @onready var barrel_1 = $TurretLook/Turret/Barrel1
 @onready var barrel_2 = $TurretLook/Turret/Barrel2
@@ -90,52 +84,7 @@ func _ready():
 	
 	
 func _process(delta):
-	
-	# Navigation
-	if !knocked:
-		if hive_velocity:
-			velocity = hive_velocity
-	
-	if !stunned:
-		stunned_stars.visible = false
-		#Sightline
-		if turret_look_next.get_collider() != null:
-			if turret_look_next.get_collider().is_in_group("player"):
-				player_in_view = true
-				player_last_seen = turret_look_next.get_collider().global_position
-		if player != null:
-			spider_look_next.look_at(Vector3(player.global_position.x, 0, player.global_position.z), Vector3.UP)
-			body.rotation.y = lerp(body.rotation.y, spider_look_next.rotation.y, delta * 1)
-			turret_look_next.look_at(player.global_position,Vector3.UP)
-			turret_look.rotation = lerp(turret_look.rotation,turret_look_next.rotation,delta * turret_look_speed)
-	else:
-		body.rotation.y = lerp(body.rotation.y, body.rotation.y + 10, delta * .1)
-		turret_look.rotation.y = lerp(turret_look.rotation.y,turret_look.rotation.y - 10,delta * .5)
-		stunned_stars.visible = true
-	
-	#apply gravity
-	if !is_on_floor():
-		velocity.y -= gravity * delta
-		
 	move_and_slide()
-	
-	if dying:
-		turret.global_rotation.y += 200 * delta
-		#fire(barrel_1)
-		#fire(barrel_2)
-	
-	if can_die:
-		die()
-
-
-func _on_area_3d_body_part_hit(dam,bullet_damage):
-	health_bar_sprite.visible = true
-	health_bar_sprite.health_update()
-	if !dying:
-		health -= dam * bullet_damage
-		if health <= 0:
-			dying_throws()
-
 
 func _on_prefire_timer_timeout():
 	fire(barrel_1)
@@ -187,58 +136,6 @@ func spawn_casing():
 	instance_casing.player_velocity = velocity * transform.basis
 	get_tree().get_root().add_child(instance_casing)
 
-func dying_throws():
-	dying = true
-	drop_loot(loot_amount)
-
-func die():
-	#remove from parent array
-	get_parent().enemies.erase(self)
-	level_control.enemy_count()
-	particlespawn = die_particles.instantiate()
-	particlespawn.position = self.global_position
-	particlespawn.transform.basis = self.global_transform.basis
-	get_tree().get_root().add_child(particlespawn)
-	
-	drop_loot(loot_amount)
-	if GameGlobals.last_hit_path == str(get_path()):
-		GameGlobals.last_hit_path = null
-		
-	SignalBus.emit_signal("enemy_killed")
-	queue_free()
-
-func drop_loot(number_of_drops):
-	#pickup drop
-	while number_of_drops > 0:
-		
-		var pickup_spawn = level_control.ITEM_PICKUP.instantiate()
-		var item_stats = level_control.pickup_spawn(false)
-		
-		##SET VARIABLES
-		pickup_spawn.pickup_type = item_stats["pickup_type"]
-		pickup_spawn.ammo_type = item_stats["ammo_type"]
-		pickup_spawn.value = item_stats["value"]
-		
-		var lv_x = randf_range(-MAX_LV,MAX_LV)
-		var lv_y = randf_range(0,MAX_LV)
-		var lv_z = randf_range(-MAX_LV,MAX_LV)
-		var av_x = randf_range(-MAX_AV,MAX_AV)
-		var av_y = randf_range(-MAX_AV,MAX_AV)
-		var av_z = randf_range(-MAX_AV,MAX_AV)
-		
-		# Random Item Drop
-		pickup_spawn.position = self.global_position + Vector3(0,2,0) #added height to spawn location since origin is on the ground
-		pickup_spawn.transform.basis = self.global_transform.basis
-		pickup_spawn.linear_velocity += self.global_transform.basis * Vector3(lv_x,lv_y,lv_z)
-		pickup_spawn.angular_velocity += self.global_transform.basis * Vector3(av_x,av_y,av_z)
-		await get_tree().create_timer(.05).timeout
-		get_tree().get_root().add_child(pickup_spawn)
-		number_of_drops -= 1
-	
-	if number_of_drops <= 0:
-		can_die = true
-
-
 
 func save():
 	var save_dict = {