week3 prep includes bullet pool, finite state machine, sprites and animation

scripts/player.gd

@@ -4,6 +4,7 @@ class_name Player extends CharacterBody2D
 @onready var left_cast: RayCast2D = $LeftCast
 @onready var right_spawn: Marker2D = $RightSpawn
 @onready var left_spawn: Marker2D = $LeftSpawn
+@onready var player_graphic: AnimatedSprite2D = $PlayerGraphic
 
 @export var shove_power:= 800
 @export var bump_power:=100
@@ -19,8 +20,15 @@ var pushTarget:Crate
 const SPEED = 300.0
 const JUMP_VELOCITY = -400.0
 
+signal shootSignal(markerPosition, speed)
+
+enum PlayerStates {IDLE,RUNNING,JUMPING,FALLING}
+var current_player_state:PlayerStates = PlayerStates.IDLE
+var upJump:bool = false
+
 
 func _physics_process(delta: float) -> void:
+	handle_input();
 	# Add the gravity.
 	if not is_on_floor():
 		velocity += get_gravity() * delta
@@ -48,11 +56,14 @@ func _physics_process(delta: float) -> void:
 		# set player direction
 		if direction < 0:
 			facing = FaceDirection.LEFT
+			player_graphic.flip_h = true
 		if direction > 0:
 			facing = FaceDirection.RIGHT
+			player_graphic.flip_h = false
 	else:
 		velocity.x = move_toward(velocity.x, 0, SPEED)
-
+	handle_states()
+	handle_animation()
 	move_and_slide()
 	# find all things my player collided with
 	for i in get_slide_collision_count():
@@ -64,7 +75,7 @@ func _physics_process(delta: float) -> void:
 		print("Something on my right")
 		#get the thing I can shove
 		var collider = right_cast.get_collider()
-		if collider is Node:
+		if collider is RigidBody2D:
 			pushRightEnabled = true
 			pushTarget = collider
 	else:
@@ -73,8 +84,63 @@ func _physics_process(delta: float) -> void:
 	if left_cast.is_colliding():
 		print("Something on my left")
 		var collider = left_cast.get_collider()
-		if collider is Node:
+		if collider is RigidBody2D:
 			pushLeftEnabled = true
 			pushTarget = collider
 	else:
 		pushLeftEnabled = false
+
+func handle_input()->void:
+	# Handle jump.
+	if Input.is_action_just_pressed("ui_accept") and is_on_floor():
+		velocity.y = JUMP_VELOCITY
+		current_player_state=PlayerStates.JUMPING
+		upJump = true
+		
+	#Handle Shoot Bullet
+	if Input.is_action_just_pressed("shoot"):
+
+		#marker postion, speed
+		match facing:
+			FaceDirection.RIGHT:
+				shootSignal.emit(right_spawn.global_transform, 800)
+			FaceDirection.LEFT:
+				shootSignal.emit(left_spawn.global_transform, -800)
+
+func handle_states()->void:
+	match current_player_state:
+		PlayerStates.IDLE when velocity.x !=0:
+			#player idle, when x velocity change
+			current_player_state = PlayerStates.RUNNING
+		PlayerStates.RUNNING when velocity.x ==0:
+			#player stops running
+			current_player_state = PlayerStates.IDLE
+		PlayerStates.JUMPING when velocity.y>0:
+			#player reaches top of jump, determined by velocity vs. gravity
+			current_player_state = PlayerStates.FALLING
+		PlayerStates.FALLING when is_on_floor():
+			#player was falling, when suddenly on floor - run or idle
+			if velocity.x ==0:
+				current_player_state = PlayerStates.IDLE
+			else:
+				current_player_state = PlayerStates.RUNNING
+func handle_animation()->void:
+	match current_player_state:
+		PlayerStates.RUNNING:
+			player_graphic.play("running")
+		PlayerStates.IDLE:
+			player_graphic.play("idle")
+		PlayerStates.JUMPING:
+			#don't keep playing the jump animation!
+			if upJump:
+				player_graphic.play("jumping")
+		PlayerStates.FALLING:
+			player_graphic.play("falling")
+	
+	
+
+
+func _on_animation_finished() -> void:
+	match current_player_state:
+		PlayerStates.JUMPING:
+			upJump = false