bullets, autoshooting and autoaiming

addons/on_screen_terminal/on_screen_terminal.gd

@@ -9,9 +9,9 @@ func _ready() -> void:
 	if not enabled:
 		hide()
 
-func log(message: String) -> void:
+func log(message: Variant) -> void:
 	if enabled:
-		$Terminal.text += "\n> " + message
+		$Terminal.text += "\n> " + str(message)
 		$Terminal.get_v_scroll_bar().value = $Terminal.get_v_scroll_bar().max_value
 
 

scenes/bullet.gd

@@ -0,0 +1,27 @@
+extends CharacterBody2D
+
+@export
+var is_player: bool = false
+@export
+var orientation: float = 0.0
+@export
+var bullet_speed: float = 1000
+@export
+var damage: float = 10.0
+
+func _ready() -> void:
+	collision_mask = 4
+	if is_player:
+		collision_mask += 2
+	else:
+		collision_mask += 1
+
+	velocity = Vector2.from_angle(orientation)*bullet_speed
+
+func _process(delta: float) -> void:
+	var collision = move_and_collide(velocity*delta)
+	if collision:
+		if collision.get_collider().has_method("hurt"):
+			collision.get_collider().hurt(damage)
+
+		queue_free()

scenes/bullet.tscn

@@ -0,0 +1,20 @@
+[gd_scene load_steps=4 format=3 uid="uid://cv036x8hk0xcn"]
+
+[ext_resource type="Texture2D" uid="uid://bd5pw0yjs0ft3" path="res://resources/ui/empty_v_bar.png" id="1_aqltn"]
+[ext_resource type="Script" path="res://scenes/bullet.gd" id="1_r0642"]
+
+[sub_resource type="RectangleShape2D" id="RectangleShape2D_ysppi"]
+size = Vector2(20, 14)
+
+[node name="Bullet" type="CharacterBody2D"]
+collision_layer = 0
+collision_mask = 0
+script = ExtResource("1_r0642")
+
+[node name="Sprite2D" type="Sprite2D" parent="."]
+rotation = 1.5708
+scale = Vector2(1, 0.2)
+texture = ExtResource("1_aqltn")
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
+shape = SubResource("RectangleShape2D_ysppi")

scenes/enermy.gd

@@ -28,6 +28,7 @@ func _process(delta: float) -> void:
 
 func hurt(damage: float):
 	life_points -= damage
+	OnScreenTerminal.log(life_points)
 	if life_points <= 0:
 		die()
 

scenes/enermy.tscn

@@ -9,7 +9,7 @@ size = Vector2(128, 126)
 [sub_resource type="CircleShape2D" id="CircleShape2D_3yv4y"]
 radius = 55.0364
 
-[node name="Enermy" type="CharacterBody2D"]
+[node name="Enermy" type="CharacterBody2D" groups=["enemies"]]
 collision_layer = 2
 collision_mask = 4
 script = ExtResource("1_i2q4i")

scenes/game.gd

@@ -0,0 +1,15 @@
+extends Node2D
+
+const BULLET_SCENE = preload("res://scenes/bullet.tscn")
+
+
+func spawn_bullet(starting_position: Vector2, orientation: float, is_player: bool):
+	var bullet = BULLET_SCENE.instantiate()
+	bullet.global_position = starting_position
+	bullet.orientation = orientation
+	bullet.is_player = is_player
+	$Bullets.add_child(bullet)
+
+
+func _on_hero_shot(spawn_position: Vector2, orientation: float) -> void:
+	spawn_bullet(spawn_position, orientation, true)

scenes/game.tscn

@@ -1,13 +1,15 @@
-[gd_scene load_steps=5 format=3 uid="uid://dwl37y77358r2"]
+[gd_scene load_steps=6 format=3 uid="uid://dwl37y77358r2"]
 
 [ext_resource type="PackedScene" uid="uid://f31q7ameb6hm" path="res://scenes/hero.tscn" id="1_2n3he"]
+[ext_resource type="Script" path="res://scenes/game.gd" id="1_17qkh"]
 [ext_resource type="Texture2D" uid="uid://5rou5wm7frds" path="res://resources/icon.svg" id="1_hu7ex"]
 [ext_resource type="PackedScene" uid="uid://csfarad5ilhw6" path="res://scenes/enermy.tscn" id="3_i8n50"]
 
 [sub_resource type="RectangleShape2D" id="RectangleShape2D_y7e0y"]
 size = Vector2(127.778, 128)
 
 [node name="Game" type="Node2D"]
+script = ExtResource("1_17qkh")
 
 [node name="Enermies" type="Node2D" parent="."]
 
@@ -29,3 +31,7 @@ texture = ExtResource("1_hu7ex")
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="StaticBody2D"]
 shape = SubResource("RectangleShape2D_y7e0y")
+
+[node name="Bullets" type="Node2D" parent="."]
+
+[connection signal="shot" from="Hero" to="." method="_on_hero_shot"]

scenes/hero.gd

@@ -7,9 +7,13 @@ const MAX_JUMP_IMPULSE_TIME: float = 0.3
 var player_speed: int = 200
 @export
 var life_points: float = 100
+@export
+var arm_rotation_speed: float = 2*PI
 
 var jump_impulse_time: float = 0.0
 
+signal shot(spawn_position: Vector2, orientation: float)
+
 func _ready() -> void:
 	velocity.x = player_speed
 	$UI.sync_life(life_points)
@@ -29,6 +33,12 @@ func _process(delta: float) -> void:
 
 	if global_position.y > GameConstants.DEATH_GLOBAL_Y_POSITION:
 		hurt(1000)
+
+	var lock_on_target = select_target()
+	aim_to(lock_on_target.global_position, delta)
+
+	if Input.is_action_just_pressed("ui_accept"): # To be removed
+		shoot()
 
 func hurt(damage: float):
 	life_points -= damage
@@ -38,3 +48,21 @@ func hurt(damage: float):
 
 func die():
 	get_tree().quit()
+
+func shoot():
+	var orientation = $ShoulderPivot.rotation
+	shot.emit($ShoulderPivot.global_position + Vector2.from_angle(orientation)*120, orientation)
+
+func select_target() -> Node2D:
+	var target = self
+	var current_min_distance = 10000
+	for enemy: Node2D in get_tree().get_nodes_in_group("enemies"):
+		if (enemy.global_position - global_position).length() < current_min_distance:
+			target = enemy
+	return target
+
+func aim_to(location: Vector2, delta: float):
+	var target_orientation = $ShoulderPivot.global_position.angle_to_point(location)
+	var rotation_strength = fposmod(target_orientation-$ShoulderPivot.rotation, 2*PI)/PI - 1
+	$ShoulderPivot.rotation -= rotation_strength*arm_rotation_speed*delta
+

scenes/hero.tscn

@@ -45,3 +45,16 @@ stretch_margin_bottom = 3
 texture_under = ExtResource("3_kjtew")
 texture_over = ExtResource("4_r372t")
 texture_progress = ExtResource("4_5m4m8")
+
+[node name="ShoulderPivot" type="Node2D" parent="."]
+
+[node name="Sprite2D" type="Sprite2D" parent="ShoulderPivot"]
+rotation = -1.5708
+texture = ExtResource("4_5m4m8")
+offset = Vector2(0, 50)
+
+[node name="ShootingCooldown" type="Timer" parent="."]
+wait_time = 0.3
+autostart = true
+
+[connection signal="timeout" from="ShootingCooldown" to="." method="shoot"]