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Create unitAI function to match a target's speed.

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Patch By: Freagarach
Differential Revision: D2731
This was SVN commit r23682.
This commit is contained in:
bb 2020-05-20 19:39:36 +00:00
parent c1ddc0c4b9
commit 585f9e76a5
1 changed files with 20 additions and 9 deletions
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29
binaries/data/mods/public/simulation/components/UnitAI.js
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@ -1701,15 +1701,7 @@ UnitAI.prototype.UnitFsmSpec = {
// Adapt the speed to the one of the target if needed
let cmpObstructionManager = Engine.QueryInterface(SYSTEM_ENTITY, IID_ObstructionManager);
if (cmpObstructionManager.IsInTargetRange(this.entity, this.isGuardOf, 0, 3 * this.guardRange, false))
{
let cmpUnitAI = Engine.QueryInterface(this.isGuardOf, IID_UnitAI);
if (cmpUnitAI)
{
let speed = cmpUnitAI.GetWalkSpeed();
if (speed < this.GetWalkSpeed())
this.SetSpeedMultiplier(speed / this.GetWalkSpeed());
}
}
this.TryMatchTargetSpeed(this.isGuardOf, false);
this.SetHeldPositionOnEntity(this.isGuardOf);
},
@ -5982,6 +5974,25 @@ UnitAI.prototype.SetSpeedMultiplier = function(speed)
cmpUnitMotion.SetSpeedMultiplier(speed);
};
/**
* Try to match the targets current movement speed.
*
* @param {number} target - The entity ID of the target to match.
* @param {boolean} mayRun - Whether the entity is allowed to run to match the speed.
*/
UnitAI.prototype.TryMatchTargetSpeed = function(target, mayRun = true)
{
let cmpUnitMotionTarget = Engine.QueryInterface(target, IID_UnitMotion);
if (cmpUnitMotionTarget)
{
let targetSpeed = cmpUnitMotionTarget.GetCurrentSpeed();
if (!targetSpeed)
return;
this.SetSpeedMultiplier(Math.min(mayRun ? this.GetRunMultiplier() : 1, targetSpeed / this.GetWalkSpeed()));
}
};
/*
* Remember the position of the target (in lastPos), if any, in case it disappears later
* and we want to head to its last known position.