Ykkrosh
778af99416
Fall back to walking to the target when unable to perform the specified command on it. This was SVN commit r7723.
97 lines
3.9 KiB
JavaScript
97 lines
3.9 KiB
JavaScript
function ResourceGatherer() {}
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ResourceGatherer.prototype.Schema =
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"<a:help>Lets the unit gather resources from entities that have the ResourceSupply component.</a:help>" +
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"<a:example>" +
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"<BaseSpeed>1.0</BaseSpeed>" +
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"<Rates>" +
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"<food.fish>1</food.fish>" +
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"<metal>3</metal>" +
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"<stone>3</stone>" +
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"<wood>2</wood>" +
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"</Rates>" +
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"</a:example>" +
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"<element name='BaseSpeed' a:help='Base resource-gathering rate (in resource units per second)'>" +
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"<ref name='positiveDecimal'/>" +
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"</element>" +
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"<element name='Rates' a:help='Per-resource-type gather rate multipliers. If a resource type is not specified then it cannot be gathered by this unit'>" +
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"<interleave>" +
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"<optional><element name='food' a:help='Food gather rate (may be overridden by \"food.*\" subtypes)'><ref name='positiveDecimal'/></element></optional>" +
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"<optional><element name='wood' a:help='Wood gather rate'><ref name='positiveDecimal'/></element></optional>" +
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"<optional><element name='stone' a:help='Stone gather rate'><ref name='positiveDecimal'/></element></optional>" +
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"<optional><element name='metal' a:help='Metal gather rate'><ref name='positiveDecimal'/></element></optional>" +
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"<optional><element name='food.fish' a:help='Fish gather rate (overrides \"food\")'><ref name='positiveDecimal'/></element></optional>" +
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"<optional><element name='food.fruit' a:help='Fruit gather rate (overrides \"food\")'><ref name='positiveDecimal'/></element></optional>" +
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"<optional><element name='food.grain' a:help='Grain gather rate (overrides \"food\")'><ref name='positiveDecimal'/></element></optional>" +
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"<optional><element name='food.meat' a:help='Meat gather rate (overrides \"food\")'><ref name='positiveDecimal'/></element></optional>" +
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"<optional><element name='food.milk' a:help='Milk gather rate (overrides \"food\")'><ref name='positiveDecimal'/></element></optional>" +
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"</interleave>" +
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"</element>";
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ResourceGatherer.prototype.Init = function()
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{
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};
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ResourceGatherer.prototype.GetGatherRates = function()
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{
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var ret = {};
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for (var r in this.template.Rates)
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ret[r] = this.template.Rates[r] * this.template.BaseSpeed;
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return ret;
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};
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ResourceGatherer.prototype.GetRange = function()
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{
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return { "max": 4, "min": 0 };
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// maybe this should depend on the unit or target or something?
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}
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/**
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* Gather from the target entity. This should only be called after a successful range check,
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* and if the target has a compatible ResourceSupply.
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* It should be called at a rate of once per second.
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*/
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ResourceGatherer.prototype.PerformGather = function(target)
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{
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var rate = this.GetTargetGatherRate(target);
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if (!rate)
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return { "exhausted": true };
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var cmpResourceSupply = Engine.QueryInterface(target, IID_ResourceSupply);
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var type = cmpResourceSupply.GetType();
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var status = cmpResourceSupply.TakeResources(rate);
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// Give the gathered resources to the player
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var cmpPlayerManager = Engine.QueryInterface(SYSTEM_ENTITY, IID_PlayerManager);
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var cmpOwnership = Engine.QueryInterface(this.entity, IID_Ownership);
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var cmpPlayer = Engine.QueryInterface(cmpPlayerManager.GetPlayerByID(cmpOwnership.GetOwner()), IID_Player);
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cmpPlayer.AddResource(type.generic, status.amount);
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return status;
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};
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/**
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* Compute the amount of resources collected per second from the target.
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* Returns 0 if resources cannot be collected (e.g. the target doesn't
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* exist, or is the wrong type).
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*/
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ResourceGatherer.prototype.GetTargetGatherRate = function(target)
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{
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var cmpResourceSupply = Engine.QueryInterface(target, IID_ResourceSupply);
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if (!cmpResourceSupply)
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return 0;
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var type = cmpResourceSupply.GetType();
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var rate;
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if (type.specific && this.template.Rates[type.generic+"."+type.specific])
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rate = this.template.Rates[type.generic+"."+type.specific];
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else
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rate = this.template.Rates[type.generic];
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return (rate || 0) * this.template.BaseSpeed;
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}
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Engine.RegisterComponentType(IID_ResourceGatherer, "ResourceGatherer", ResourceGatherer);
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