146 lines
4.1 KiB
GDScript
146 lines
4.1 KiB
GDScript
extends CharacterBody2D
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@onready var bullet = preload("res://scene/entities/bullet.tscn")
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@onready var animated_sprite = $AnimatedSprite2D
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@onready var muzzle = $FIRE
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@onready var TimerFIRE = $TimerFIRE
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@onready var hurt_timer = $Timerinvincibility
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const SPEED = 140.0
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const JUMP_VELOCITY = -230.0
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const JUMP_MAX = 2
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var JUMP_COUNT = 0
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var HP = 3
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var invincibility = false
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var is_jump : bool = false
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var respawn_position
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@onready var hp_icons = [
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$HP_Block, # 对应第1滴血
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$HP_Block2, # 对应第2滴血
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$HP_Block3 # 对应第3滴血
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]
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const MAX_HP = 3 # 最大血量
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# 刷新 UI 的核心函数
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func _update_hp_ui():
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# 遍历所有的生命图标
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for i in range(hp_icons.size()):
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# 如果索引小于当前HP，就显示，否则隐藏
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# 比如 HP=2，那么 i=0(显示)、i=1(显示)、i=2(隐藏)
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hp_icons[i].visible = i < HP
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func _ready() -> void:
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animated_sprite.play("IDLE")
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add_to_group("Player")
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hurt_timer.timeout.connect(_on_hurt_timer_timeout)
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# 1. 从全局单例读取血量（注意大小写要和 Global.gd 里一致！）
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if Global:
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HP = Global.player_HP
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else:
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HP = 3 # 如果没有全局单例，默认给3滴血（防止报错）
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# 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)
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var spawn_point = get_tree().get_first_node_in_group("SpawnPoint")
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if spawn_point:
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global_position = spawn_point.global_position # 把玩家移动到出生点
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# 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）
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respawn_position = global_position
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# 4. 刷新血量UI，确保血条显示正确
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_update_hp_ui()
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func _physics_process(delta: float) -> void:
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# Add the gravity.
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if not is_on_floor():
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velocity += get_gravity() * delta
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else:
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JUMP_COUNT = 0
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# Handle jump.
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if Input.is_action_just_pressed("move_up") and JUMP_COUNT < JUMP_MAX:
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velocity.y = JUMP_VELOCITY
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animated_sprite.play("JUMP")
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JUMP_COUNT += 1
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if JUMP_COUNT == 1:
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is_jump = true
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animated_sprite.play("JUMP")
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is_jump = false
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elif JUMP_COUNT == 2:
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animated_sprite.play("DOUBLE_JUMP")
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await get_tree().create_timer(0.26).timeout
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animated_sprite.play("JUMP")
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# Get the input direction and handle the movement/deceleration.
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# As good practice, you should replace UI actions with custom gameplay actions.
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var direction := Input.get_axis("move_left", "move_right")
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if invincibility:#无敌帧
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if direction < 0: #无敌阵期间
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animated_sprite.flip_h = true
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elif direction > 0:
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animated_sprite.flip_h = false
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velocity.x = SPEED * direction
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move_and_slide()
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else:
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if direction < 0: #动画运行
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animated_sprite.flip_h = true
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elif direction > 0:
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animated_sprite.flip_h = false
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if direction != 0 :
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velocity.x = SPEED * direction #RUN动画
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if animated_sprite.animation != "RUN" and is_on_floor() and not is_jump:
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animated_sprite.play("RUN")
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else: #IDLE动画
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if is_on_floor() and not is_jump:
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velocity.x = move_toward(velocity.x, 0, SPEED)
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animated_sprite.play("IDLE")
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move_and_slide()
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if Input.is_mouse_button_pressed(MOUSE_BUTTON_LEFT) and TimerFIRE.is_stopped():
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shoot()
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TimerFIRE.start()
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func shoot(): #射击
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var bullet_scene = bullet.instantiate()
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var mouse_pos = get_global_mouse_position()
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bullet_scene.target_pos = mouse_pos
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bullet_scene.global_position = muzzle.global_position
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get_parent().add_child(bullet_scene)
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func die(): #死亡
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HP = 3
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velocity = Vector2.ZERO
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global_position = respawn_position
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_update_hp_ui()
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animated_sprite.play("IDLE")
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invincibility = true
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hurt_timer.start()
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func take_damage(amount:int): #伤害
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if invincibility:
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return
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HP -= amount
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if HP <0:
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HP = 0
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_update_hp_ui()
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animated_sprite.play("HIT")
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#print("当前的HP是：", HP)
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if HP <= 0:
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die()
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else:
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invincibility = true # 开启无敌
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hurt_timer.start() # 启动无敌计时器
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func _on_hurt_timer_timeout() -> void:
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invincibility = false
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func heal(amount:int):
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if HP >= MAX_HP:
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return
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HP += amount
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_update_hp_ui()
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