从健康中扣除
Deducting from health
本文关键字:健康 更新时间:2023-09-26
我有一个船体和护盾,我希望在受到伤害时先从护盾中扣除伤害,然后在空的时候从船体中扣除。但是如果护盾只剩下100,伤害是400,那么船体从1000开始就是700。
这是我设法做的,盾部分工作,但船体算法对我来说太难掌握了。
Player.prototype.deductHealth = function(damage)
{
var shield = (this.PlayerShield - damage);
var remainder = (damage - this.PlayerShield);
var hull = this.PlayerHull;
if(this.PlayerShield < 0)
{
hull = (this.PlayerHull - remainder);
}
if(hull <=0)
{
hull = 0;
shield = 0;
}
this.PlayerHull = hull;
this.PlayerShield = shield;
}
我现在不能测试它,但像这样的东西我认为可以工作。
Player.prototype.deductHealth = function(damage)
{
var shield = (this.PlayerShield - damage);
var remainder = 0;
if (shield<0) {
remainder=-shield;
shield=0;
}
var hull = this.PlayerHull;
if(remainder > 0)
{
hull = (this.PlayerHull - remainder);
}
if(hull <=0)
{
hull = 0;
shield = 0;
}
this.PlayerHull = hull;
this.PlayerShield = shield;
}
嗯…试试这个,我认为你有问题,因为你混淆地引用了代表船体和盾强度的本地变量,以及代表船体和盾的成员变量。我的建议是只使用成员变量,像这样:
Player.prototype.deductHealth = function(damage)
{
var shieldOverkill = (damage - this.PlayerShield);
this.PlayerShield = this.PlayerShield - damage;
if ( shieldOverkill > 0 )
{
this.PlayerHull = this.PlayerHull - shieldOverkill;
}
if( this.PlayerHull < 0)
{
this.PlayerHull= 0;
}
if ( this.PlayerShield < 0 )
{
this.PlayerShield = 0;
}
}
让我们一步一步来:
Player.protoype.deductHealth = function (damage) {
this.PlayerShield -= damage; // First deduct the damage from the shields:
if (this.PlayerShield < 0) { // If shields are negative
// Take the damage not absorbed by shields from hull;
this.PlayerHull += this.PlayerShield; // note we use + since shields are negative
this.PlayerShield = 0; // Set shields to 0
if (this.PlayerHull < 0) { // If hull now negative
this.PlayerHull = 0; // set to zero.
}
}
}
更高级的版本,使用更合适的名称:
Player.prototype.takeHit (damage) {
if ((this.shields -= damage) < 0) { // Shields exhausted ?
if ((this.hull += this.shields) < 0) { // Hull exhausted?
this.hull = 0;
}
this.shields = 0;
}
}