pretty happy with basic AI behavior

2025-04-29 11:02:12 -05:00
parent ccb4781460
commit a287710a7b
10 changed files with 86 additions and 75 deletions
--- a/ai_test_scene.tscn
+++ b/ai_test_scene.tscn
@@ -1,4 +1,4 @@
-[gd_scene load_steps=12 format=3 uid="uid://cfaydhd6u5bmb"]
+[gd_scene load_steps=15 format=3 uid="uid://cfaydhd6u5bmb"]

 [ext_resource type="Script" uid="uid://bkii8jwf0k7tq" path="res://scripts/LevelManager.gd" id="1_wa46b"]
 [ext_resource type="PackedScene" uid="uid://24slv0pyxcd5" path="res://assets/level_bounds.tscn" id="2_a2a5u"]
@@ -9,13 +9,23 @@
 [ext_resource type="PackedScene" uid="uid://c7dhavrt11u55" path="res://enemy_spawner.tscn" id="6_5u3xe"]
 [ext_resource type="PackedScene" uid="uid://drwae3loscbw7" path="res://assets/player.tscn" id="7_540vx"]
 [ext_resource type="PackedScene" uid="uid://dvmqvjrnt4sgh" path="res://respawn_enemies_button.tscn" id="7_i7wgr"]
+[ext_resource type="Material" uid="uid://bb0beroi2p3gd" path="res://assets/materials/FrostedGlass.tres" id="7_t6ubg"]

 [sub_resource type="BoxShape3D" id="BoxShape3D_t6ubg"]
 size = Vector3(92.25, 82.386, 76.6396)

 [sub_resource type="NavigationMesh" id="NavigationMesh_wa46b"]
-vertices = PackedVector3Array(-19.5, 1, 0, -5, 1, 0, -4.75, 1, -1.5, -2.75, 1, -19.5, -19.5, 1, -19.5, -2.75, 1, -1.5, 2.75, 1, -1.5, 3, 1, -19.5, 5.75, 1, -1.25, 19.5, 1, -1.5, 19.5, 1, -19.5, 6.25, 1, 11.25, 4.5, 1, 11.5, 4.5, 1, 19.5, 19.5, 1, 19.5, 6.25, 1, -1, -4, 4.5, -0.5, -4, 4.5, 0.5, 3, 4.5, 0.5, 3, 4.5, -0.5, -3.75, 1, -0.25, -3.75, 1, 0.25, 3, 1, 0.25, 3, 1, -0.25, 4, 5, -0.25, 4, 5, 10.5, 5.25, 5, 10.5, 5.25, 5, -0.25, 3, 1, 11.25, 3, 1, 1.5, -4.75, 1, 1.5, -19.5, 1, 19.5, 4.25, 1, 1.5, 4.25, 1, 10.25, 5, 1, 10.25, 5, 1, 1.25)
-polygons = [PackedInt32Array(1, 0, 2), PackedInt32Array(2, 0, 4), PackedInt32Array(2, 4, 3), PackedInt32Array(3, 5, 2), PackedInt32Array(5, 3, 6), PackedInt32Array(6, 3, 7), PackedInt32Array(8, 6, 9), PackedInt32Array(9, 6, 7), PackedInt32Array(9, 7, 10), PackedInt32Array(12, 11, 13), PackedInt32Array(13, 11, 14), PackedInt32Array(15, 8, 9), PackedInt32Array(15, 9, 11), PackedInt32Array(11, 9, 14), PackedInt32Array(19, 18, 16), PackedInt32Array(16, 18, 17), PackedInt32Array(23, 22, 20), PackedInt32Array(20, 22, 21), PackedInt32Array(27, 26, 24), PackedInt32Array(24, 26, 25), PackedInt32Array(28, 12, 13), PackedInt32Array(30, 29, 28), PackedInt32Array(0, 1, 30), PackedInt32Array(28, 13, 30), PackedInt32Array(30, 13, 0), PackedInt32Array(0, 13, 31), PackedInt32Array(33, 32, 34), PackedInt32Array(34, 32, 35)]
+vertices = PackedVector3Array(-19.5, 1, 0, -5, 1, 0, -4.75, 1, -1.5, -2.75, 1, -19.5, -19.5, 1, -19.5, -2.75, 1, -1.5, 2.75, 1, -1.5, 3, 1, -19.5, 5.75, 1, -1.25, 19.5, 1, -1.5, 19.5, 1, -19.5, 6.25, 1, 11.25, 4.75, 1, 11.5, 4.75, 1, 19.5, 19.5, 1, 19.5, 6.25, 1, -1, -4, 4.5, -0.5, -4, 4.5, 0.5, 3, 4.5, 0.5, 3, 4.5, -0.5, -3.75, 1, -0.25, -3.75, 1, 0.25, 3, 1, 0.25, 3, 1, -0.25, 4, 5, -0.25, 4, 5, 10.5, 5.25, 5, 10.5, 5.25, 5, -0.25, -19.5, 1, 12, -8.75, 1, 12, -8.5, 1, 11.25, -5, 1, 1, -6, 1, 10.75, -4.5, 1, 1.5, 4.25, 1, 1.5, 4.25, 1, 10.25, 5, 1, 10.25, 5, 1, 1.25, 3, 1, 10.75, 3, 1, 1.5, -8.25, 1, 12.25, -8.5, 1, 18.25, -9.5, 1, 18.5, -9.5, 1, 19.5, 3.25, 1, 11.5, -10, 4, 13.25, -9.75, 4, 17.5, -9.25, 4, 13.5, -9.25, 4, 13, -19.5, 4, 13, -10.75, 1, 18.25, -19.5, 1, 19.5, -10.75, 1, 14.25, -19.5, 1, 14.25)
+polygons = [PackedInt32Array(1, 0, 2), PackedInt32Array(2, 0, 4), PackedInt32Array(2, 4, 3), PackedInt32Array(3, 5, 2), PackedInt32Array(5, 3, 6), PackedInt32Array(6, 3, 7), PackedInt32Array(8, 6, 9), PackedInt32Array(9, 6, 7), PackedInt32Array(9, 7, 10), PackedInt32Array(12, 11, 13), PackedInt32Array(13, 11, 14), PackedInt32Array(15, 8, 9), PackedInt32Array(15, 9, 11), PackedInt32Array(11, 9, 14), PackedInt32Array(19, 18, 16), PackedInt32Array(16, 18, 17), PackedInt32Array(23, 22, 20), PackedInt32Array(20, 22, 21), PackedInt32Array(27, 26, 24), PackedInt32Array(24, 26, 25), PackedInt32Array(30, 29, 28), PackedInt32Array(31, 30, 1), PackedInt32Array(1, 30, 28), PackedInt32Array(1, 28, 0), PackedInt32Array(33, 32, 31), PackedInt32Array(31, 32, 30), PackedInt32Array(35, 34, 36), PackedInt32Array(36, 34, 37), PackedInt32Array(39, 38, 33), PackedInt32Array(33, 38, 32), PackedInt32Array(29, 30, 40), PackedInt32Array(40, 30, 32), PackedInt32Array(42, 41, 43), PackedInt32Array(43, 41, 13), PackedInt32Array(44, 12, 13), PackedInt32Array(40, 32, 41), PackedInt32Array(41, 32, 38), PackedInt32Array(41, 38, 44), PackedInt32Array(41, 44, 13), PackedInt32Array(48, 47, 45), PackedInt32Array(45, 47, 46), PackedInt32Array(48, 45, 49), PackedInt32Array(42, 43, 50), PackedInt32Array(50, 43, 51), PackedInt32Array(52, 50, 53), PackedInt32Array(53, 50, 51)]
+
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_t6ubg"]
+transparency = 1
+albedo_color = Color(1, 1, 1, 0.14902)
+roughness = 0.1
+refraction_enabled = true
+
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_sdike"]
+albedo_color = Color(1, 1, 1, 0.211765)

 [node name="AI Test Scene" type="Node3D"]
 script = ExtResource("1_wa46b")
@@ -56,6 +66,19 @@ use_collision = true
 size = Vector3(2.18811, 5.13403, 11.5242)
 material = ExtResource("4_t6ubg")

+[node name="CSGBox3D4" type="CSGBox3D" parent="NavigationRegion3D"]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -14.3731, 1.5141, 13.0335)
+use_collision = true
+size = Vector3(11.0513, 4.0282, 1)
+material = SubResource("StandardMaterial3D_t6ubg")
+
+[node name="CSGBox3D5" type="CSGBox3D" parent="NavigationRegion3D"]
+transform = Transform3D(-4.37114e-08, 0, 1, 0, 1, 0, -1, 0, -4.37114e-08, -9.57032, 1.56372, 15.2494)
+material_override = ExtResource("7_t6ubg")
+use_collision = true
+size = Vector3(5.10229, 4.0282, 1)
+material = SubResource("StandardMaterial3D_sdike")
+
 [node name="Level" type="Node3D" parent="."]
 script = ExtResource("5_sdike")
 start_enemies = 1
--- a/assets/spider2.tscn
+++ b/assets/spider2.tscn
@@ -871,7 +871,6 @@ initial_state = NodePath("Idle")
 [node name="Idle" type="Node" parent="StateMachine" node_paths=PackedStringArray("enemy")]
 script = ExtResource("7_cwyr0")
 enemy = NodePath("../..")
-can_see = true

 [node name="Stunned" type="Node" parent="StateMachine" node_paths=PackedStringArray("stunned_stars", "enemy")]
 script = ExtResource("8_wpql0")
@@ -887,7 +886,6 @@ metadata/_custom_type_script = "uid://dhxolagi0b5s1"
 script = ExtResource("10_gicen")
 alarm_sound = NodePath("../../AUIDO/Alarm")
 enemy = NodePath("../..")
-can_see = true

 [node name="Reload" type="Node" parent="StateMachine" node_paths=PackedStringArray("reload_sound", "enemy")]
 script = ExtResource("11_ekglj")
@@ -983,11 +981,6 @@ top_level = true
 target_position = Vector3(0, 0, -50)
 collision_mask = 5

-[node name="SpiderLookNext" type="RayCast3D" parent="."]
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0.00161432, 1.62046, 0.00134204)
-target_position = Vector3(0, 0, -50)
-collision_mask = 5
-
 [node name="AnimationPlayer" type="AnimationPlayer" parent="."]
 root_node = NodePath("../Icosphere_002")
 libraries = {
--- a/scripts/EnemyAttack.gd
+++ b/scripts/EnemyAttack.gd
@@ -15,6 +15,7 @@ var visibility_timer

 func Enter():
 	super()
+	enemy.cache_player_pos()
 	visibility_timer = time_before_losing_visual
 	update_waypoint()
 	enemy.turret_material.emission_enabled = true
@@ -31,6 +32,8 @@ func current_target():
 		return enemy.point_of_interest

 func Update(delta):
+	enemy.cache_player_pos()
+	
 	if !enemy.is_player_visible():
 		if visibility_timer > 0:
 			visibility_timer -= delta
@@ -73,9 +76,7 @@ func Physics_Update(delta):
 	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.global_rotation.y = rotate_to_face2D(enemy,move_target(),delta,turret_speed)

 func attack():
 	fire(enemy.barrel_1)
--- a/scripts/EnemyIdle.gd
+++ b/scripts/EnemyIdle.gd
@@ -55,10 +55,4 @@ func Physics_Update(delta : float):
 		var direction = local_destination.normalized()
 		if enemy.global_position.distance_to(local_destination) > 1:
 			enemy.velocity = direction * idle_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)
-		
-		
-		if enemy.turret_look.is_colliding() and enemy.turret_look.get_collider() is Player:
-			Transitioned.emit(self,"attack")
+			enemy.global_rotation.y = rotate_to_face2D(enemy,destination,delta,turret_speed)
--- a/scripts/EnemyReload.gd
+++ b/scripts/EnemyReload.gd
@@ -21,8 +21,8 @@ func Exit():
 	enemy.servo_single.play()

 func update_waypoint():
-	var direction = (player.global_position - enemy.global_position).normalized()
-	enemy.nav_agent.set_target_position(direction * run_distance)
+	#var direction = (player.global_position - enemy.global_position).normalized()
+	enemy.nav_agent.set_target_position(move_target())

 func Update(delta):
 	if heartbeat > 0:
@@ -39,7 +39,7 @@ func Update(delta):
 	

 func Physics_Update(delta):
-	enemy.turret_look_next.look_at(player.global_position)
+	enemy.turret_look_next.look_at(move_target())
 	enemy.turret_look.rotation = lerp(enemy.turret_look.rotation,Vector3(deg_to_rad(90),0,0),delta * enemy.turret_look_speed)
 	
 	var destination = enemy.nav_agent.get_next_path_position()
@@ -47,15 +47,13 @@ func Physics_Update(delta):
 	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(player.global_position)
-		var look_target = enemy.spider_look_next.global_rotation.y
-		enemy.global_rotation.y = lerp(enemy.global_rotation.y,look_target,delta * body_turn_speed)
+		enemy.global_rotation.y = rotate_to_face2D(enemy,move_target(),delta,turret_speed)

 func finished_reload():
 	if enemy.turret_look_next.is_colliding():
 		if enemy.turret_look_next.get_collider() is Player:
 			Transitioned.emit(self,"attack")
 		else:
-			Transitioned.emit(self,"idle")
+			Transitioned.emit(self,"search")
 	else:
-		Transitioned.emit(self,"idle")
+		Transitioned.emit(self,"search")
--- a/scripts/EnemySearch.gd
+++ b/scripts/EnemySearch.gd
@@ -1,61 +1,41 @@
 extends EnemyState
 class_name EnemySearch

-@export var idle_speed : float = 1.5
+var search_timer

-var move_direction : Vector3
-var scan_direction : float
-
-var search_time : float
-var scan_time : float
-
-const WANDER_AMT = 50
-const TURRET_TURN_AMT : float = 90.0
-const TURRET_SCAN_SPEED : float = .5
+const SEARCH_TIME_MAX : float = 10.0

 func Enter():
 	super()
 	search_point()
-	scan_direction = deg_to_rad(TURRET_TURN_AMT)
+	search_timer = SEARCH_TIME_MAX

 func Update(delta: float):
 	super(delta)
 	
-	attack_on_sight()
-	
-	if search_time > 0:
-		search_time -= delta
+	if search_timer > 0:
+		search_timer -= delta
 	else:
 		Transitioned.emit(self,"idle")
 	
-	if scan_time > 0:
-		scan_time -= delta
-	else:
-		randomize_turret_scan()
+	attack_on_sight()
+	search_point()
+	
+	if enemy.global_position.distance_to(move_target_adj()) < 1:
+		Transitioned.emit(self,"idle")

 func Physics_Update(delta : float):
-	if enemy:
 	#turret transform
-		enemy.turret_look.rotation = lerp(enemy.turret_look.rotation,enemy.turret_look_next.rotation,delta * TURRET_SCAN_SPEED)
+	enemy.turret_look_next.look_at(move_target())
+	enemy.turret_look.rotation = lerp(enemy.turret_look.rotation,enemy.turret_look_next.rotation,delta * turret_speed)
 	
 	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 * idle_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.velocity = direction * move_speed
+	enemy.global_rotation.y = rotate_to_face2D(enemy,move_target(),delta,turret_speed)

-		if enemy.turret_look.is_colliding() and enemy.turret_look.get_collider() is Player:
-			Transitioned.emit(self,"attack")

 func search_point():
 	enemy.nav_agent.set_target_position(move_target())
-	search_time = randf_range(3,10)
-
-func randomize_turret_scan():
-	scan_direction = -scan_direction
-	enemy.turret_look_next.rotation = Vector3(0,scan_direction,0)
-	scan_time = randf_range(5,10)
--- a/scripts/EnemyStates.gd
+++ b/scripts/EnemyStates.gd
@@ -3,7 +3,8 @@ class_name EnemyState

@export var enemy : CharacterBody3D
@export var move_speed : float = 3
-@export var can_see : bool = false # indicates whether the enemy is able to see things in the state
+@export var turret_speed : float = 6.0
+@export var can_see : bool = true # indicates whether the enemy is able to see things in the state
@export var time_to_lose_target = 1.0

@onready var target_lost_timer = time_to_lose_target
@@ -14,7 +15,7 @@ func Update(delta):
 func move_target():
 	if enemy.player_last_seen != null:
 		return enemy.player_last_seen
-	elif enemy.points_of_interest.size() > 0:
+	elif enemy.points_of_interest != null:
 		var move_point = {"loudness" : 0.0,"point" : Vector3.ZERO}
 		for point in enemy.points_of_interest:
 			if point["loudness"] > move_point["loudness"]:
@@ -27,7 +28,29 @@ func attack_on_sight():
 	if can_see:
 		if enemy.is_player_in_area() and enemy.is_player_visible():
 			Transitioned.emit(self,"attack")
+		if enemy.turret_look.is_colliding():
+			if enemy.turret_look.get_collider() is Player:
+				Transitioned.emit(self,"attack")

 func search_on_lost_target(delta):
 	if !enemy.is_player_visible():
 		Transitioned.emit(self,"attack")
+
+func move_target_adj():
+	var position = move_target()
+	return Vector3(position.x,enemy.global_position.y,position.z)
+
+func rotate_to_face2D(object,target,delta,turn_speed):
+	#to allow both nodes and positions to be passed to this function, test the target and use Vector3 coords
+	var target_transformed
+	if target == null:
+		target_transformed = object.global_position
+	elif target is Vector3:
+		target_transformed = target
+	elif target is Node3D:
+		target_transformed = target.global_position
+	
+	var pos2d = Vector2(object.global_position.x,object.global_position.z)
+	var target_pos2d = Vector2(target_transformed.x,target_transformed.z)
+	var direction = (pos2d - target_pos2d)
+	return lerp_angle(object.rotation.y,atan2(direction.x,direction.y),delta * turn_speed)
--- a/scripts/dead_cam.gd
+++ b/scripts/dead_cam.gd
@@ -84,7 +84,7 @@ func _process(delta):
 			cam_target.global_position = lerp(cam_target.global_position,target_pos_adjusted,delta * MOVE_SPEED)
 			look_ray.global_position = target_pos_adjusted
 			look_ray.look_at(Vector3(target.global_position), Vector3.UP)
-			camera.rotation = lerp_angle(camera.rotation,look_ray.rotation,delta * CAMERA_LOOK_SPEED)
+			camera.rotation = lerp(camera.rotation,look_ray.rotation,delta * CAMERA_LOOK_SPEED)
 			camera.fov = lerp(camera.fov, 40.0, delta * 5)
 		1:
 			#aim at player from enemy
--- a/scripts/level_bounds.gd
+++ b/scripts/level_bounds.gd
@@ -17,7 +17,8 @@ func _on_body_exited(body: Node3D) -> void:
 		if level_control.gamemode.die_on_leaving_bounds == true:
 			get_tree().current_scene.die()
 		else:
-			body.global_position = body.last_ground_pos + Vector3(0,10,0)
+			body.velocity = Vector3.ZERO
+			body.global_position = body.last_ground_pos + Vector3(0,.1,0)

 func toggle_collision(collision_state):
 	check_collision = collision_state
--- a/scripts/spider.gd
+++ b/scripts/spider.gd
@@ -39,7 +39,6 @@ var last_enemy : bool = false
@onready var knocked_timer = $Timers/knocked_timer
@onready var stunned_timer = $Timers/stunned_timer
@onready var turret_look_next = $TurretLookNext
-@onready var spider_look_next = $SpiderLookNext
@onready var body = $body
@onready var audio_fire = $AUIDO/Fire
@onready var turret = $TurretLook/Turret
@@ -103,7 +102,6 @@ func _process(delta):
 	line_of_sight.global_position = global_position
 	move_and_slide()
 	look_at_player()
-	cache_player_pos()
 	
 	if debug_tools:
 		debug_marker()