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

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