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Provide a TriggerHelper function to spawn garrisoned entities

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Differential Revision: https://code.wildfiregames.com/D1146
This was SVN commit r20659.
This commit is contained in:
mimo 2017-12-17 17:17:00 +00:00
parent a5a1909bd3
commit e29dfb7000
1 changed files with 42 additions and 0 deletions
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42
binaries/data/mods/public/maps/scripts/TriggerHelper.js
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@ -79,6 +79,48 @@ TriggerHelper.SpawnUnits = function(source, template, count, owner)
return entities;
};
/**
* Can be used to spawn garrisoned units inside a building/ship.
*
* @param entity Entity id of the garrison holder in which units will be garrisoned
* @param template Name of the template
* @param count Number of units to spawn
* @param owner Player id of the owner of the new units. By default, the owner
* of the garrisonholder entity.
*/
TriggerHelper.SpawnGarrisonedUnits = function(entity, template, count, owner)
{
let entities = [];
let cmpGarrisonHolder = Engine.QueryInterface(entity, IID_GarrisonHolder);
if (!cmpGarrisonHolder)
{
error("tried to create garrisoned entities inside a non-garrisonholder");
return entities;
}
if (owner == null)
owner = TriggerHelper.GetOwner(entity);
for (let i = 0; i < count; ++i)
{
let ent = Engine.AddEntity(template);
let cmpOwnership = Engine.QueryInterface(ent, IID_Ownership);
if (cmpOwnership)
cmpOwnership.SetOwner(owner);
if (cmpGarrisonHolder.PerformGarrison(ent))
{
if (Engine.QueryInterface(ent, IID_UnitAI))
Engine.QueryInterface(ent, IID_UnitAI).Autogarrison(entity);
entities.push(ent);
}
else
error("failed to garrison entity " + template + " inside " + entity);
}
return entities;
};
/**
* Spawn units from all trigger points with this reference
* If player is defined, only spaw units from the trigger points