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Add preferred classes to BuildingAI. Patch by jammus. Fixes #1985

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This was SVN commit r13823.
This commit is contained in:
sanderd17 2013-09-11 17:50:49 +00:00
parent 43df87e56f
commit 508cc0d4c7
2 changed files with 66 additions and 12 deletions
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31
binaries/data/mods/public/simulation/components/BuildingAI.js
View file

@ -169,16 +169,11 @@ BuildingAI.prototype.OnRangeUpdate = function(msg)
else if (msg.tag != this.enemyUnitsQuery) else if (msg.tag != this.enemyUnitsQuery)
return; return;
const restrictedClasses = cmpAttack.GetRestrictedClasses(attackType);
if (msg.added.length > 0) if (msg.added.length > 0)
{ {
for each (var entity in msg.added) for each (var entity in msg.added)
{ {
var cmpIdentity = Engine.QueryInterface(entity, IID_Identity); if (cmpAttack.CanAttack(entity))
var targetClasses = cmpIdentity.GetClassesList();
if (!targetClasses.some(function(c){return restrictedClasses.indexOf(c) > -1;}))
this.targetUnits.push(entity); this.targetUnits.push(entity);
} }
} }
@ -285,20 +280,32 @@ BuildingAI.prototype.FireArrows = function()
this.arrowsLeft this.arrowsLeft
); );
} }
var clonedTargets = this.targetUnits.slice(); if (arrowsToFire <= 0)
{
this.currentRound++;
return;
}
var targets = new WeightedList();
for (var i = 0; i < this.targetUnits.length; i++)
{
var target = this.targetUnits[i],
weight = (cmpAttack.GetPreference(target) || 0) + 1
targets.add(target, weight);
}
for (var i = 0;i < arrowsToFire;i++) for (var i = 0;i < arrowsToFire;i++)
{ {
var target = clonedTargets[Math.floor(Math.random() * this.targetUnits.length)]; var selectedIndex = targets.randomIndex(),
if (target && this.CheckTargetVisible(target)) selectedTarget = targets.itemAt(selectedIndex);
if (selectedTarget && this.CheckTargetVisible(selectedTarget))
{ {
cmpAttack.PerformAttack(attackType, target); cmpAttack.PerformAttack(attackType, selectedTarget);
PlaySound("attack", this.entity); PlaySound("attack", this.entity);
} }
else else
{ {
clonedTargets.splice(clonedTargets.indexOf(target),1); targets.removeAt(selectedIndex);
i--; // one extra arrow left to fire i--; // one extra arrow left to fire
if(clonedTargets.length < 1) if(targets.length() < 1)
{ {
this.arrowsLeft += arrowsToFire; this.arrowsLeft += arrowsToFire;
// no targets found in this round, save arrows and go to next round // no targets found in this round, save arrows and go to next round

47
binaries/data/mods/public/simulation/helpers/WeightedList.js Normal file
View file

@ -0,0 +1,47 @@
var WeightedList = function()
{
this.elements = [ ];
this.totalWeight = 0;
};
WeightedList.prototype.length = function()
{
return this.elements.length;
};
WeightedList.prototype.push = function(item, weight)
{
if (weight === undefined)
weight = 1;
this.totalWeight += weight;
this.elements.push({ "item": item, "weight": weight });
};
WeightedList.prototype.removeAt = function(index)
{
var element = this.elements.splice(index, 1)[0];
if (element)
this.totalWeight -= element.weight;
};
WeightedList.prototype.itemAt = function(index)
{
var element = this.elements[index];
return element ? element.item : null;
};
WeightedList.prototype.randomIndex = function() {
var element,
targetWeight = Math.random() * this.totalWeight,
cumulativeWeight = 0;
for (var index = 0; index < this.elements.length; index++)
{
element = this.elements[index];
cumulativeWeight += element.weight;
if (cumulativeWeight >= targetWeight)
return index;
}
return -1;
};
Engine.RegisterGlobal("WeightedList", WeightedList);