homework

2026-10-07 17:58:02 +08:00
commit 456aa52ede
409 changed files with 11297 additions and 0 deletions
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+extends CharacterBody2D
+@onready var bullet = preload("res://scene/entities/bullet.tscn")
+@onready var animated_sprite = $AnimatedSprite2D
+@onready var muzzle = $FIRE
+@onready var TimerFIRE = $TimerFIRE
+@onready var hurt_timer = $Timerinvincibility
+const SPEED = 140.0
+const JUMP_VELOCITY = -230.0
+const JUMP_MAX = 2
+var JUMP_COUNT = 0
+var HP = 3
+var invincibility = false
+var is_jump : bool = false
+var respawn_position
+
+@onready var hp_icons = [
+	$HP_Block,  # 对应第1滴血
+	$HP_Block2, # 对应第2滴血
+	$HP_Block3  # 对应第3滴血
+]
+const MAX_HP = 3 # 最大血量
+
+# 刷新 UI 的核心函数
+func _update_hp_ui():
+	# 遍历所有的生命图标
+	for i in range(hp_icons.size()):
+		# 如果索引小于当前HP，就显示，否则隐藏
+		# 比如 HP=2，那么 i=0(显示)、i=1(显示)、i=2(隐藏)
+		hp_icons[i].visible = i < HP
+
+func _ready() -> void:
+	animated_sprite.play("IDLE")
+	add_to_group("Player")
+	hurt_timer.timeout.connect(_on_hurt_timer_timeout)
+	
+	# 1. 从全局单例读取血量（注意大小写要和 Global.gd 里一致！）
+	if Global:
+		HP = Global.player_HP
+	else:
+		HP = 3 # 如果没有全局单例，默认给3滴血（防止报错）
+	
+	# 2. 寻找第二关场景里的出生点 (需要你给出生点节点加上 "SpawnPoint" 组)
+	var spawn_point = get_tree().get_first_node_in_group("SpawnPoint")
+	if spawn_point:
+		global_position = spawn_point.global_position # 把玩家移动到出生点
+	
+	# 3. 更新玩家死亡后的复活点（非常重要！否则在第二关死了会复活回第一关的位置）
+	respawn_position = global_position
+	
+	# 4. 刷新血量UI，确保血条显示正确
+	_update_hp_ui()
+
+func _physics_process(delta: float) -> void:
+	# Add the gravity.
+	if not is_on_floor():
+		velocity += get_gravity() * delta
+	else:
+		JUMP_COUNT = 0
+	# Handle jump.
+	if Input.is_action_just_pressed("move_up") and JUMP_COUNT < JUMP_MAX:
+		velocity.y = JUMP_VELOCITY
+		animated_sprite.play("JUMP")
+		JUMP_COUNT += 1
+		if JUMP_COUNT == 1:
+			is_jump = true
+			animated_sprite.play("JUMP")
+			is_jump = false
+		elif JUMP_COUNT == 2:
+			animated_sprite.play("DOUBLE_JUMP")
+			await get_tree().create_timer(0.26).timeout
+			animated_sprite.play("JUMP")
+			
+			
+
+	# 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("move_left", "move_right")
+	
+	if invincibility:#无敌帧
+		if direction < 0:                      #无敌阵期间
+			animated_sprite.flip_h = true     
+		elif direction > 0:
+			animated_sprite.flip_h = false
+		velocity.x = SPEED * direction
+		move_and_slide()
+	else:
+		if direction < 0:                       #动画运行
+			animated_sprite.flip_h = true
+		elif direction > 0:
+			animated_sprite.flip_h = false
+		if direction != 0 :
+			velocity.x = SPEED * direction      #RUN动画
+			if animated_sprite.animation != "RUN" and is_on_floor() and not is_jump:
+				animated_sprite.play("RUN")
+		else:                                   #IDLE动画
+			if is_on_floor() and not is_jump:
+				velocity.x = move_toward(velocity.x, 0, SPEED)
+				animated_sprite.play("IDLE")
+
+		move_and_slide()
+	
+	if Input.is_mouse_button_pressed(MOUSE_BUTTON_LEFT) and TimerFIRE.is_stopped():
+		shoot()
+		TimerFIRE.start()
+	
+
+func shoot():                     #射击
+	var bullet_scene = bullet.instantiate()
+	var mouse_pos = get_global_mouse_position()
+	bullet_scene.target_pos = mouse_pos
+	bullet_scene.global_position = muzzle.global_position
+	get_parent().add_child(bullet_scene)
+
+func die():                       #死亡
+	HP = 3
+	velocity = Vector2.ZERO
+	global_position = respawn_position
+	_update_hp_ui()
+	animated_sprite.play("IDLE")
+	invincibility = true
+	hurt_timer.start() 
+	
+	
+func take_damage(amount:int):     #伤害
+	if invincibility:
+		return
+	HP -= amount
+	if HP <0:
+		HP = 0
+	_update_hp_ui()
+	animated_sprite.play("HIT")
+	#print("当前的HP是：", HP)
+	if HP <= 0:
+		die()
+	else:
+		invincibility = true # 开启无敌
+		hurt_timer.start()   # 启动无敌计时器
+func _on_hurt_timer_timeout() -> void:
+	invincibility = false
+
+func heal(amount:int):
+	if HP >= MAX_HP:
+		return
+	HP += amount
+	_update_hp_ui()