81 lines
2.2 KiB
JavaScript
81 lines
2.2 KiB
JavaScript
function TerritoryDecay() {}
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TerritoryDecay.prototype.Schema =
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"<element name='HealthDecayRate' a:help='Decay rate in hitpoints per second'>" +
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"<data type='positiveInteger'/>" +
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"</element>";
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TerritoryDecay.prototype.Init = function()
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{
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this.timer = undefined;
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};
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TerritoryDecay.prototype.IsConnected = function()
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{
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var cmpPosition = Engine.QueryInterface(this.entity, IID_Position);
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if (!cmpPosition || !cmpPosition.IsInWorld())
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return false;
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var cmpOwnership = Engine.QueryInterface(this.entity, IID_Ownership);
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if (!cmpOwnership)
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return false;
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// Prevent special gaia buildings from decaying (e.g. fences, ruins)
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if (cmpOwnership.GetOwner() == 0)
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return true;
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var cmpTerritoryManager = Engine.QueryInterface(SYSTEM_ENTITY, IID_TerritoryManager);
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if (!cmpTerritoryManager)
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return false;
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var pos = cmpPosition.GetPosition2D();
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var tileOwner = cmpTerritoryManager.GetOwner(pos.x, pos.y);
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if (tileOwner != cmpOwnership.GetOwner())
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return false;
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// TODO: this should probably use the same territory restriction
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// logic as BuildRestrictions, to handle allies etc
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return cmpTerritoryManager.IsConnected(pos.x, pos.y);
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};
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TerritoryDecay.prototype.UpdateDecayState = function()
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{
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var connected = this.IsConnected();
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if (!connected && !this.timer)
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{
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// Start decaying
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var cmpTimer = Engine.QueryInterface(SYSTEM_ENTITY, IID_Timer);
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this.timer = cmpTimer.SetInterval(this.entity, IID_TerritoryDecay, "Decay", 1000, 1000, {});
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}
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else if (connected && this.timer)
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{
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// Stop decaying
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var cmpTimer = Engine.QueryInterface(SYSTEM_ENTITY, IID_Timer);
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cmpTimer.CancelTimer(this.timer);
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this.timer = undefined;
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}
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};
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TerritoryDecay.prototype.OnTerritoriesChanged = function(msg)
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{
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this.UpdateDecayState();
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};
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TerritoryDecay.prototype.OnOwnershipChanged = function(msg)
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{
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this.UpdateDecayState();
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};
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TerritoryDecay.prototype.Decay = function()
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{
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var cmpHealth = Engine.QueryInterface(this.entity, IID_Health);
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if (!cmpHealth)
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return; // error
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var decayRate = ApplyValueModificationsToEntity("TerritoryDecay/HealthDecayRate", +this.template.HealthDecayRate, this.entity);
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cmpHealth.Reduce(Math.round(decayRate));
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};
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Engine.RegisterComponentType(IID_TerritoryDecay, "TerritoryDecay", TerritoryDecay);
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