forked from 0ad/0ad
leper
4243433f94
Fix some code that assumed components exist instead of testing for them. EntityLimits and TechnologyManager are not needed for gaia and will be removed in the future. This was SVN commit r16119.
123 lines
3.3 KiB
JavaScript
123 lines
3.3 KiB
JavaScript
function Armour() {}
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Armour.prototype.Schema =
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"<a:help>Controls the damage resistance of the unit.</a:help>" +
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"<a:example>" +
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"<Hack>10.0</Hack>" +
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"<Pierce>0.0</Pierce>" +
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"<Crush>5.0</Crush>" +
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"</a:example>" +
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"<element name='Hack' a:help='Hack damage protection'>" +
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"<ref name='nonNegativeDecimal'/>" +
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"</element>" +
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"<element name='Pierce' a:help='Pierce damage protection'>" +
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"<ref name='nonNegativeDecimal'/>" +
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"</element>" +
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"<element name='Crush' a:help='Crush damage protection'>" +
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"<ref name='nonNegativeDecimal'/>" +
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"</element>" +
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"<optional>" +
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"<element name='Foundation' a:help='Armour given to building foundations'>" +
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"<interleave>" +
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"<element name='Hack' a:help='Hack damage protection'>" +
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"<ref name='nonNegativeDecimal'/>" +
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"</element>" +
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"<element name='Pierce' a:help='Pierce damage protection'>" +
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"<ref name='nonNegativeDecimal'/>" +
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"</element>" +
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"<element name='Crush' a:help='Crush damage protection'>" +
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"<ref name='nonNegativeDecimal'/>" +
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"</element>" +
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"</interleave>" +
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"</element>" +
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"</optional>";
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Armour.prototype.Init = function()
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{
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this.nextAlertTime = 0;
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this.invulnerable = false;
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};
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Armour.prototype.SetInvulnerability = function(invulnerability)
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{
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this.invulnerable = invulnerability;
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};
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/**
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* Take damage according to the entity's armor.
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* Returns object of the form { "killed": false, "change": -12 }
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*/
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Armour.prototype.TakeDamage = function(hack, pierce, crush, source)
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{
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// Alert target owner of attack
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var cmpAttackDetection = QueryOwnerInterface(this.entity, IID_AttackDetection);
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if (cmpAttackDetection)
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{
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var now = Engine.QueryInterface(SYSTEM_ENTITY, IID_Timer).GetTime();
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if (now > this.nextAlertTime)
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{
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this.nextAlertTime = now + cmpAttackDetection.GetSuppressionTime();
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cmpAttackDetection.AttackAlert(this.entity, source);
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}
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}
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if (this.invulnerable)
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return { "killed": false, "change": 0 };
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// Adjust damage values based on armour; exponential armour: damage = attack * 0.9^armour
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var armourStrengths = this.GetArmourStrengths();
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var adjHack = hack * Math.pow(0.9, armourStrengths.hack);
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var adjPierce = pierce * Math.pow(0.9, armourStrengths.pierce);
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var adjCrush = crush * Math.pow(0.9, armourStrengths.crush);
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// Total is sum of individual damages
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// Don't bother rounding, since HP is no longer integral.
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var total = adjHack + adjPierce + adjCrush;
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// Reduce health
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var cmpHealth = Engine.QueryInterface(this.entity, IID_Health);
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return cmpHealth.Reduce(total);
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};
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Armour.prototype.GetArmourStrengths = function()
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{
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// Work out the armour values with technology effects
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var self = this;
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var applyMods = function(type, foundation)
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{
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var strength;
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if (foundation)
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{
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strength = +self.template.Foundation[type];
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type = "Foundation/" + type;
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}
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else
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{
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strength = +self.template[type];
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}
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strength = ApplyValueModificationsToEntity("Armour/" + type, strength, self.entity);
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return strength;
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};
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if (Engine.QueryInterface(this.entity, IID_Foundation) && this.template.Foundation)
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{
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return {
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hack: applyMods("Hack", true),
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pierce: applyMods("Pierce", true),
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crush: applyMods("Crush", true)
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};
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}
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else
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{
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return {
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hack: applyMods("Hack"),
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pierce: applyMods("Pierce"),
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crush: applyMods("Crush")
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};
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}
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};
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Engine.RegisterComponentType(IID_DamageReceiver, "Armour", Armour);
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