Index: ps/trunk/binaries/data/mods/public/simulation/components/ResourceSupply.js
===================================================================
--- ps/trunk/binaries/data/mods/public/simulation/components/ResourceSupply.js
+++ ps/trunk/binaries/data/mods/public/simulation/components/ResourceSupply.js
@@ -5,6 +5,9 @@
 	"<a:example>" +
 		"<Amount>1000</Amount>" +
 		"<Type>food.meat</Type>" +
+		"<KillBeforeGather>false</KillBeforeGather>" +
+		"<MaxGatherers>25</MaxGatherers>" +
+		"<DiminishingReturns>0.8</DiminishingReturns>" +
 	"</a:example>" +
 	"<element name='KillBeforeGather' a:help='Whether this entity must be killed (health reduced to 0) before its resources can be gathered'>" +
 		"<data type='boolean'/>" +
@@ -120,9 +123,7 @@
 
 ResourceSupply.prototype.IsAvailable = function(player, gathererID)
 {
-	if (this.GetNumGatherers() < this.GetMaxGatherers() || this.gatherers[player].indexOf(gathererID) !== -1)
-		return true;
-	return false;
+	return this.amount > 0 && (this.GetNumGatherers() < this.GetMaxGatherers() || this.gatherers[player].indexOf(gathererID) !== -1);
 };
 
 ResourceSupply.prototype.AddGatherer = function(player, gathererID)
Index: ps/trunk/binaries/data/mods/public/simulation/components/tests/test_ResourceSupply.js
===================================================================
--- ps/trunk/binaries/data/mods/public/simulation/components/tests/test_ResourceSupply.js
+++ ps/trunk/binaries/data/mods/public/simulation/components/tests/test_ResourceSupply.js
@@ -70,7 +70,5 @@
 
 TS_ASSERT_UNEVAL_EQUALS(cmpResourceSupply.TakeResources(800), { "amount": 700, "exhausted": true });
 TS_ASSERT_EQUALS(cmpResourceSupply.GetCurrentAmount(), 0);
-// The following assertion is not expected
-// The resource should not be available when exhausted
-// (even if the entity is in the destroy queue)
-TS_ASSERT(cmpResourceSupply.IsAvailable(1, 70));
+// The resource is not available when exhausted
+TS_ASSERT(!cmpResourceSupply.IsAvailable(1, 70));