Week 2: bullet factory, raycast, shove attack, unique names

bullet.gd

@@ -0,0 +1,16 @@
+class_name Bullet extends Area2D
+var speed = 700
+
+signal bulletHit(body, bullet)
+
+func _physics_process(delta: float) -> void:
+	position += transform.x * speed * delta
+
+func setSpeed(value):
+	speed = value
+
+
+func _on_body_entered(body: Node2D) -> void:	
+	if not body is Player:
+		print("bullet hit!")
+		bulletHit.emit(body, self)

bullet.gd.uid

@@ -0,0 +1 @@
+uid://wmy17yj81te8

gamecontroller.gd

@@ -33,3 +33,11 @@ func _on_trigger_trigger_fired(effect: Variant, body: Variant) -> void:
 		if totalCrates == 0:
 			print("YOU WIN!")
 			get_tree().reload_current_scene()
+
+func numberOfCrates(value:int)->void:
+	totalCrates = value
+
+func bulletDamage(body, bullet):
+	print("Game controller knows about bullet")
+	body.queue_free()
+	#bullet.queue_free()

project.godot

@@ -20,3 +20,16 @@ config/icon="res://icon.svg"
 folder_colors={
 "res://scripts/": "red"
 }
+
+[input]
+
+shove={
+"deadzone": 0.2,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":90,"key_label":0,"unicode":122,"location":0,"echo":false,"script":null)
+]
+}
+shoot={
+"deadzone": 0.2,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":88,"key_label":0,"unicode":120,"location":0,"echo":false,"script":null)
+]
+}

scenes/bullet.tscn

@@ -0,0 +1,15 @@
+[gd_scene load_steps=3 format=3 uid="uid://cy02yf4v8q5v6"]
+
+[ext_resource type="Script" uid="uid://wmy17yj81te8" path="res://bullet.gd" id="1_mkf8s"]
+
+[sub_resource type="RectangleShape2D" id="RectangleShape2D_y25gk"]
+size = Vector2(34, 8)
+
+[node name="Area2D" type="Area2D"]
+script = ExtResource("1_mkf8s")
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
+shape = SubResource("RectangleShape2D_y25gk")
+debug_color = Color(0.931576, 2.76271e-05, 0.652218, 0.42)
+
+[connection signal="body_entered" from="." to="." method="_on_body_entered"]

scenes/crate.tscn

@@ -0,0 +1,15 @@
+[gd_scene load_steps=3 format=3 uid="uid://ch3ncwkrhv38n"]
+
+[ext_resource type="Script" uid="uid://d2pjirchmmx8w" path="res://scripts/crate.gd" id="1_b66cd"]
+
+[sub_resource type="RectangleShape2D" id="RectangleShape2D_uwrxv"]
+size = Vector2(144, 44)
+
+[node name="Crate" type="RigidBody2D" groups=["pushables"]]
+rotation = 1.08962
+script = ExtResource("1_b66cd")
+metadata/_edit_group_ = true
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
+shape = SubResource("RectangleShape2D_uwrxv")
+debug_color = Color(0.82094, 0.38733, 0.296015, 0.42)

scenes/game.tscn

@@ -1,31 +1,26 @@
-[gd_scene load_steps=8 format=3 uid="uid://bvs868ncmeoj5"]
+[gd_scene load_steps=9 format=3 uid="uid://bvs868ncmeoj5"]
 
 [ext_resource type="Script" uid="uid://dtod1rsvbxyti" path="res://gamecontroller.gd" id="1_lnu2h"]
-[ext_resource type="Script" uid="uid://c3vqmu6nc4gb0" path="res://scripts/player.gd" id="1_uwrxv"]
+[ext_resource type="Script" uid="uid://bijvpac45v6s1" path="res://scripts/scene_manager.gd" id="2_lbhrr"]
+[ext_resource type="PackedScene" uid="uid://c5a5u2c250g6" path="res://scenes/player.tscn" id="2_lnu2h"]
 [ext_resource type="PackedScene" uid="uid://dgbqoys4mm8j" path="res://scenes/trigger.tscn" id="3_lnu2h"]
-
-[sub_resource type="CircleShape2D" id="CircleShape2D_8cj0n"]
-radius = 21.2132
+[ext_resource type="PackedScene" uid="uid://ch3ncwkrhv38n" path="res://scenes/crate.tscn" id="4_iywne"]
+[ext_resource type="PackedScene" uid="uid://cy02yf4v8q5v6" path="res://scenes/bullet.tscn" id="6_p57ef"]
 
 [sub_resource type="RectangleShape2D" id="RectangleShape2D_8cj0n"]
 size = Vector2(160, 48)
 
 [sub_resource type="WorldBoundaryShape2D" id="WorldBoundaryShape2D_uwrxv"]
 
-[sub_resource type="RectangleShape2D" id="RectangleShape2D_uwrxv"]
-size = Vector2(144, 44)
-
 [node name="Game" type="Node2D"]
 script = ExtResource("1_lnu2h")
 
-[node name="CharacterBody2D" type="CharacterBody2D" parent="."]
-position = Vector2(489, 45)
-script = ExtResource("1_uwrxv")
-metadata/_edit_group_ = true
+[node name="SceneManager" type="Node" parent="."]
+unique_name_in_owner = true
+script = ExtResource("2_lbhrr")
 
-[node name="CollisionShape2D" type="CollisionShape2D" parent="CharacterBody2D"]
-shape = SubResource("CircleShape2D_8cj0n")
-debug_color = Color(0.332985, 0.606108, 0.412422, 0.42)
+[node name="CharacterBody2D" parent="." instance=ExtResource("2_lnu2h")]
+position = Vector2(489, 45)
 
 [node name="Level" type="Node2D" parent="."]
 
@@ -52,44 +47,33 @@ shape = SubResource("WorldBoundaryShape2D_uwrxv")
 
 [node name="Crates" type="Node2D" parent="."]
 
-[node name="Crate 0" type="RigidBody2D" parent="Crates"]
+[node name="Crate 0" parent="Crates" instance=ExtResource("4_iywne")]
 position = Vector2(580, 158)
-rotation = 1.08962
-metadata/_edit_group_ = true
 
-[node name="CollisionShape2D" type="CollisionShape2D" parent="Crates/Crate 0"]
-shape = SubResource("RectangleShape2D_uwrxv")
-debug_color = Color(0.82094, 0.38733, 0.296015, 0.42)
+[node name="Crate 1" parent="Crates" instance=ExtResource("4_iywne")]
+position = Vector2(256, 226)
+rotation = -0.544367
 
-[node name="Crate 1" type="RigidBody2D" parent="Crates"]
-position = Vector2(758, 131)
-rotation = 2.21149
-metadata/_edit_group_ = true
+[node name="Crate 2" parent="Crates" instance=ExtResource("4_iywne")]
+position = Vector2(792, 60)
+rotation = -0.536401
 
-[node name="CollisionShape2D" type="CollisionShape2D" parent="Crates/Crate 1"]
-shape = SubResource("RectangleShape2D_uwrxv")
-debug_color = Color(0.82094, 0.38733, 0.296015, 0.42)
+[node name="Triggers" type="Node2D" parent="."]
 
-[node name="Crate 2" type="RigidBody2D" parent="Crates"]
-position = Vector2(390, 129)
-rotation = 2.24474
-metadata/_edit_group_ = true
-
-[node name="CollisionShape2D" type="CollisionShape2D" parent="Crates/Crate 2"]
-shape = SubResource("RectangleShape2D_uwrxv")
-debug_color = Color(0.82094, 0.38733, 0.296015, 0.42)
-
-[node name="Trigger" parent="." instance=ExtResource("3_lnu2h")]
+[node name="Trigger" parent="Triggers" instance=ExtResource("3_lnu2h")]
 position = Vector2(254, 406)
 
-[node name="Trigger2" parent="." instance=ExtResource("3_lnu2h")]
+[node name="Trigger2" parent="Triggers" instance=ExtResource("3_lnu2h")]
 position = Vector2(860, 415)
 effect = "destroy"
 
-[node name="Trigger3" parent="." instance=ExtResource("3_lnu2h")]
+[node name="Trigger3" parent="Triggers" instance=ExtResource("3_lnu2h")]
 position = Vector2(582, 414)
 effect = "elaborate"
 
-[connection signal="triggerFired" from="Trigger" to="." method="_on_trigger_trigger_fired"]
-[connection signal="triggerFired" from="Trigger2" to="." method="_on_trigger_trigger_fired"]
-[connection signal="triggerFired" from="Trigger3" to="." method="_on_trigger_trigger_fired"]
+[node name="Area2D" parent="." instance=ExtResource("6_p57ef")]
+position = Vector2(887.175, 161.841)
+
+[connection signal="triggerFired" from="Triggers/Trigger" to="." method="_on_trigger_trigger_fired"]
+[connection signal="triggerFired" from="Triggers/Trigger2" to="." method="_on_trigger_trigger_fired"]
+[connection signal="triggerFired" from="Triggers/Trigger3" to="." method="_on_trigger_trigger_fired"]

scenes/player.tscn

@@ -0,0 +1,27 @@
+[gd_scene load_steps=3 format=3 uid="uid://c5a5u2c250g6"]
+
+[ext_resource type="Script" uid="uid://c3vqmu6nc4gb0" path="res://scripts/player.gd" id="1_3vyb7"]
+
+[sub_resource type="CircleShape2D" id="CircleShape2D_8cj0n"]
+radius = 21.2132
+
+[node name="CharacterBody2D" type="CharacterBody2D"]
+script = ExtResource("1_3vyb7")
+metadata/_edit_group_ = true
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
+position = Vector2(-2, 0)
+shape = SubResource("CircleShape2D_8cj0n")
+debug_color = Color(0.368579, 0.61578, 3.85046e-07, 0.42)
+
+[node name="RightCast" type="RayCast2D" parent="."]
+target_position = Vector2(25, 0)
+
+[node name="LeftCast" type="RayCast2D" parent="."]
+target_position = Vector2(-29, 0)
+
+[node name="RightSpawn" type="Node2D" parent="."]
+position = Vector2(22, -9)
+
+[node name="LeftSpawn" type="Node2D" parent="."]
+position = Vector2(-30, -10)

scripts/crate.gd

@@ -0,0 +1 @@
+class_name Crate extends RigidBody2D

scripts/crate.gd.uid

@@ -0,0 +1 @@
+uid://d2pjirchmmx8w

scripts/player.gd

@@ -1,30 +1,92 @@
-extends CharacterBody2D
+class_name Player extends CharacterBody2D
 
+@onready var right_cast: RayCast2D = $RightCast
+@onready var left_cast: RayCast2D = $LeftCast
+@onready var right_spawn: Node2D = $RightSpawn
+@onready var left_spawn: Node2D = $LeftSpawn
 
 const SPEED = 300.0
 const JUMP_VELOCITY = -400.0
 
-@export var pushpower = 80.0
+@export var bump_power = 60.0
+@export var shove_power = 600.0
+
+enum FaceDirection {LEFT, RIGHT}
+var facing: FaceDirection = FaceDirection.LEFT
+
+var pushTarget: RigidBody2D
+var pushEnable: bool = false
 
 func _physics_process(delta: float) -> void:
 	# Add the gravity.
 	if not is_on_floor():
 		velocity += get_gravity() * delta
+	
+	# Handle input
+	handle_input()
+	
+	# Move and handle player collisions
+	move_and_slide()
+	handle_collisions()
 
+func handle_input() -> void:
+	if Input.is_action_just_pressed("shoot"):
+		print("Shoot")
+		if facing == FaceDirection.LEFT:
+			%SceneManager.makeBullet(left_spawn.global_transform, -700)
+		if facing == FaceDirection.RIGHT:
+			%SceneManager.makeBullet(right_spawn.global_transform, 700)
+	
+	if Input.is_action_just_pressed("shove") and pushEnable:
+		if facing == FaceDirection.LEFT:
+			print("Shove attack LEFT!!!")
+			pushTarget.apply_central_impulse(Vector2(-1,0) * shove_power)
+			pushEnable = false
+		if facing == FaceDirection.RIGHT:
+			print("Shove attack RIGHT!!!")
+			pushTarget.apply_central_impulse(Vector2(1,0) * shove_power)
+			pushEnable = false
+	
 	# Handle jump.
 	if Input.is_action_just_pressed("ui_accept") and is_on_floor():
 		velocity.y = JUMP_VELOCITY
 
 	# Get the input direction and handle the movement/deceleration.
 	# As good practice, you should replace UI actions with custom gameplay actions.
-	var direction := Input.get_axis("ui_left", "ui_right")
+	var direction := Input.get_axis("ui_left", "ui_right")	
 	if direction:
 		velocity.x = direction * SPEED
+		facing = FaceDirection.LEFT if direction < 0 else FaceDirection.RIGHT
 	else:
 		velocity.x = move_toward(velocity.x, 0, SPEED)
 
-	move_and_slide()
+func update_movement() -> void:
+	pass
+
+func update_states() -> void:
+	pass
+
+func handle_collisions() -> void:
 	for i in get_slide_collision_count():
 		var c = get_slide_collision(i)
 		if c.get_collider() is RigidBody2D:
-			c.get_collider().apply_central_impulse(-c.get_normal() * pushpower)
+			c.get_collider().apply_central_impulse(-c.get_normal() * bump_power)	
+	
+	if right_cast.is_colliding() and facing == FaceDirection.RIGHT:
+		print("Right raycast hitting something")
+		var collider = right_cast.get_collider()
+		if collider is Node and collider is RigidBody2D:
+			print("I think it's a crate")
+			pushTarget = collider
+			pushEnable = true
+		
+	if left_cast.is_colliding() and facing == FaceDirection.LEFT:
+		print("Left raycast hitting something")
+		var collider = left_cast.get_collider()
+		if collider is Node and collider is RigidBody2D:
+			print("I think it's a crate")
+			pushTarget = collider
+			pushEnable = true
+	
+	if not right_cast.is_colliding() and not left_cast.is_colliding():
+		pushEnable = false

scripts/scene_manager.gd

@@ -0,0 +1,48 @@
+extends Node
+
+@onready var game: GameController = $".."
+@onready var crates: Node2D = $"../Crates"
+
+var bullet = preload("res://scenes/bullet.tscn")
+var bulletArray = []
+var totalAllowedBullets = 7
+
+# Called when the node enters the scene tree for the first time.
+func _ready() -> void:
+	buildLevel()
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta: float) -> void:
+	pass
+
+
+func buildLevel() -> void:
+	# count crates
+	var totalCrates = 0
+	for obj in crates.get_children():
+		if obj is Crate:
+			totalCrates += 1
+	# tell the game controller
+	game.numberOfCrates(totalCrates)
+
+
+func bulletFactory():
+	var mybullet
+	if bulletArray.size() < totalAllowedBullets:
+		#new bullet
+		mybullet = bullet.instantiate()
+		mybullet.connect("bulletHit", game.bulletDamage)
+		owner.add_child(mybullet)
+	else:
+		#recycled bullet
+		mybullet = bulletArray.pop_back()	
+	
+	bulletArray.push_front(mybullet)
+	return mybullet
+
+func makeBullet(position, speed):
+	print("Scene manager make bullet")
+	var mybullet = bulletFactory()
+	mybullet.setSpeed(speed)
+	mybullet.transform = position

scripts/scene_manager.gd.uid

@@ -0,0 +1 @@
+uid://bijvpac45v6s1