Enemies & very basic enemy AI
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ToasterPanic
parent
020b995c94
commit
6bc0e995db
4 changed files with 206 additions and 2 deletions
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@ -1,4 +1,4 @@
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[gd_scene load_steps=11 format=3 uid="uid://bauklhpieuivd"]
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[gd_scene load_steps=12 format=3 uid="uid://bauklhpieuivd"]
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[ext_resource type="Script" uid="uid://d0qswyhwbhdua" path="res://scripts/game.gd" id="1_u5sy4"]
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[ext_resource type="Texture2D" uid="uid://dtwo7g0ipc4k" path="res://textures/ship_1.png" id="1_uwrxv"]
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@ -8,6 +8,7 @@
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[ext_resource type="AudioStream" uid="uid://5tr30e1tmdp6" path="res://sounds/collision.mp3" id="2_lbhrr"]
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[ext_resource type="AudioStream" uid="uid://b6tyof2j3ytbv" path="res://sounds/concrete_halls.mp3" id="3_0tnpc"]
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[ext_resource type="AudioStream" uid="uid://b1ung55xg31l3" path="res://sounds/boost_finish.mp3" id="3_p57ef"]
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[ext_resource type="Script" uid="uid://8d4jhy3fo32b" path="res://scripts/enemy.gd" id="9_0tnpc"]
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[sub_resource type="CircleShape2D" id="CircleShape2D_uwrxv"]
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radius = 16.0
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@ -59,6 +60,36 @@ rotation_smoothing_speed = 15.0
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shape = SubResource("CircleShape2D_lnu2h")
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debug_color = Color(0.9686392, 0, 0.4696517, 0.41960785)
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[node name="Enemy" type="RigidBody2D" parent="."]
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position = Vector2(0, -418)
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linear_damp = 6.247
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script = ExtResource("9_0tnpc")
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[node name="Boost" type="AudioStreamPlayer" parent="Enemy"]
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stream = ExtResource("2_iywne")
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[node name="BoostFinish" type="AudioStreamPlayer" parent="Enemy"]
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stream = ExtResource("3_p57ef")
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volume_db = -8.0
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[node name="Collision" type="AudioStreamPlayer" parent="Enemy"]
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stream = ExtResource("2_lbhrr")
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[node name="Sprite" type="Sprite2D" parent="Enemy"]
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texture = ExtResource("1_uwrxv")
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[node name="CollisionShape" type="CollisionShape2D" parent="Enemy"]
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shape = SubResource("CircleShape2D_uwrxv")
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[node name="Hitbox" type="Area2D" parent="Enemy"]
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[node name="CollisionShape" type="CollisionShape2D" parent="Enemy/Hitbox"]
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shape = SubResource("CircleShape2D_lnu2h")
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debug_color = Color(0.9686392, 0, 0.4696517, 0.41960785)
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[node name="SightCast" type="RayCast2D" parent="Enemy"]
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target_position = Vector2(0, -256)
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[node name="Unloadables" type="Node2D" parent="."]
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[node name="UI" type="CanvasLayer" parent="."]
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@ -89,3 +120,4 @@ grow_vertical = 2
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text = "DIST: 2048"
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[connection signal="body_shape_entered" from="Player/Hitbox" to="Player" method="_on_hitbox_body_shape_entered"]
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[connection signal="body_shape_entered" from="Enemy/Hitbox" to="Enemy" method="_on_hitbox_body_shape_entered"]
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171
scripts/enemy.gd
Normal file
171
scripts/enemy.gd
Normal file
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@ -0,0 +1,171 @@
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extends RigidBody2D
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var health = 1000
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var boost = 100
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var speed = 480
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var time_since_last_collision = 1
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var boosting = false
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var axis = 0
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var movement_axis = -1
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var AI_MODE_ATTACK = 1
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var ai_mode = AI_MODE_ATTACK
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var AI_STATE_EVADE_OBJECT = 1
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var AI_STATE_TRACK_ENEMY = 2
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var AI_STATE_STATIONARY_ENEMY = 3
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var object_to_evade = null
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var last_ai_state_before_evasion = AI_STATE_TRACK_ENEMY
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var ai_state = AI_STATE_TRACK_ENEMY
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var target_rotation = 0
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var target_rotation_speed = 1
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var ai_tick = 0.1
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@onready var player = get_parent().get_node("Player")
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func cast(angle):
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$SightCast.rotation_degrees = angle
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$SightCast.force_raycast_update()
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return $SightCast.get_collider()
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func check_front():
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var front_cast = cast(0)
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if !front_cast:
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$SightCast.position.x = -20
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front_cast = cast(0)
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if !front_cast:
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$SightCast.position.x = 20
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front_cast = cast(0)
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$SightCast.position.x = 0
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if front_cast:
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$SightCast.position.x = -20
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$SightCast.force_raycast_update()
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var cast_left = $SightCast.get_collision_point()
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$SightCast.position.x = 20
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$SightCast.force_raycast_update()
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var cast_right = $SightCast.get_collision_point()
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$SightCast.position.x = 0
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if (cast_left - $SightCast.position).length() > (cast_right - $SightCast.position).length(): return -1
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else: return 1
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return 1
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func _process(delta: float) -> void:
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ai_tick -= delta
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if boosting:
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if Input.is_action_pressed("boost"):
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boost -= delta * 40
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if boost <= 0:
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boost = 0
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boosting = false
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$BoostFinish.play()
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else:
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boosting = false
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$BoostFinish.play()
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else:
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boost += delta * 25
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if boost > 100: boost = 100
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$Boost.stop()
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if Input.is_action_just_pressed("boost") and (boost > 33):
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boosting = true
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$Boost.play()
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if time_since_last_collision <= 1:
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time_since_last_collision += delta
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if ai_tick < 0:
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ai_tick = 0.1
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movement_axis = -1
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if ai_state == AI_STATE_TRACK_ENEMY:
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target_rotation = global_position.direction_to(player.position).angle() + deg_to_rad(270)
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if ai_state == AI_STATE_STATIONARY_ENEMY:
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target_rotation = global_position.direction_to(player.position).angle() + deg_to_rad(270)
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movement_axis = 0
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var front_cast = cast(0)
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if !front_cast:
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$SightCast.position.x = -20
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front_cast = cast(0)
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if !front_cast:
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$SightCast.position.x = 20
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front_cast = cast(0)
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$SightCast.position.x = 0
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if front_cast:
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var front_cast_distance = ($SightCast.get_collision_point() - position).length()
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if (front_cast_distance < 160 * (speed / 300)) and (front_cast_distance < (player.position - position).length()):
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if ai_state != AI_STATE_EVADE_OBJECT: last_ai_state_before_evasion = ai_state
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ai_state = AI_STATE_EVADE_OBJECT
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target_rotation += deg_to_rad(45) * check_front()
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object_to_evade = front_cast
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target_rotation_speed = 1
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if ai_state == AI_STATE_EVADE_OBJECT:
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if not front_cast:
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ai_state = last_ai_state_before_evasion
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else:
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var front_cast_distance = ($SightCast.get_collision_point() - position).length()
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if front_cast_distance > 160 * (speed / 300):
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ai_state = last_ai_state_before_evasion
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print(ai_state)
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func _physics_process(delta: float) -> void:
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axis = 0
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var difference = fmod(target_rotation, deg_to_rad(360)) - fmod(rotation, deg_to_rad(360))
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var normalized_difference = fmod(difference + deg_to_rad(180), deg_to_rad(360)) - deg_to_rad(180)
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var target_distance = normalized_difference
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if target_distance < 0:
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axis = target_rotation_speed
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if target_distance > 0:
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axis = -target_rotation_speed
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angular_velocity = deg_to_rad(180 * axis)
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var final_speed = speed
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if boosting:
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movement_axis = -1
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final_speed = 1024
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# Slow down on collision and gradually speed up
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if time_since_last_collision < 0.85: final_speed *= (time_since_last_collision + 0.15)
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var new_velocity = transform.y * movement_axis * final_speed
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if (new_velocity.length() > linear_velocity.length() - 12):
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linear_velocity = new_velocity
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func _on_hitbox_body_shape_entered(body_rid: RID, body: Node2D, body_shape_index: int, local_shape_index: int) -> void:
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if body.linear_velocity.length() + linear_velocity.length() > 256:
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health -= 100
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$Collision.play()
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time_since_last_collision = 0
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1
scripts/enemy.gd.uid
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1
scripts/enemy.gd.uid
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@ -0,0 +1 @@
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uid://8d4jhy3fo32b
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@ -27,7 +27,7 @@ func _process(delta: float) -> void:
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if time_since_last_atmospheric_track > 60:
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var tracks = [$BalladOfTheCats, $ConcreteHalls]
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current_atmospheric_track = tracks[randi_range(0, tracks.size())]
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current_atmospheric_track = tracks[randi_range(0, tracks.size() - 1)]
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current_atmospheric_track.play()
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chunk_tick_timer -= delta
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