血条的实现

场景搭建

只需要控制脚本，控制当前血量节点的显示与否即可

extends = HBoxContainer

var heart_full = preload("res://assets/Heart_full.png")
var heart_empty = preload("res://assets/Heart_empty.png")
var heart_half = preload("res://assets/Heart_half.png")

enum TYPES {type1, type2, type3}
export (TYPES) var type = TYPES.type1

func update_heart(value):
    match type:
        TYPES.type1:
            update_type1(value)
        TYPES.type2:
            update_type2(value)
        TYPES.type3:
            update_type3(value)
    
func update_type1(value):
    for i in self.get_child_count():
        if i < value:
            get_child(i).show()
        else:
            get_child(i).hide()

func update_type2(value):
    for i in self.get_child_count():
        if i < value:
            get_child(i).texture = heart_full
        else:
            get_child(i).texture = heart_empty

func update_type3(value):
    for i in self.get_child_count():
        if i * 2 < value - 1:
            get_child(i).texture = heart_full
        elif i * 2 == value - 1:
            get_child(i).texture = heart_half
        else:
            get_child(i).texture = heart_empty