Add military only drag select (Alt modifier) by gerbilOFdoom. Closes #277

This was SVN commit r10873.

binaries/data/config/default.cfg

@@ -142,6 +142,7 @@ hotkey.cut = "Ctrl+X"               ; Cut selected text and copy to the clipboar
 
 ; > ENTITY SELECTION
 hotkey.selection.add = Shift                ; Add units to selection
+hotkey.selection.milonly = Alt              ; Add only military units to selection
 hotkey.selection.remove = Ctrl              ; Remove units from selection
 hotkey.selection.idleworker = Period        ; Select next idle worker
 hotkey.selection.idlewarrior = Comma        ; Select next idle warrior

binaries/data/mods/public/gui/session/input.js

@@ -444,6 +444,19 @@ function getPreferredEntities(ents)
 	return preferredEnts;
 }
 
+// Removes any support units from the passed list of entities
+function getMilitaryEntities(ents)
+{
+	var militaryEnts = [];
+	for each (var ent in ents)
+	{
+		var entState = GetEntityState(ent);
+		if (!isSupport(entState))
+			militaryEnts.push(ent);
+	}
+	return militaryEnts;
+}
+
 function handleInputBeforeGui(ev, hoveredObject)
 {
 	// Capture mouse position so we can use it for displaying cursors,
@@ -512,7 +525,16 @@ function handleInputBeforeGui(ev, hoveredObject)
 				var preferredEntities = getPreferredEntities(ents)
 
 				if (preferredEntities.length)
-					ents = preferredEntities;
+				{
+ 					ents = preferredEntities;
+
+					if(Engine.HotkeyIsPressed("selection.milonly"))
+					{
+						var militaryEntities = getMilitaryEntities(ents);
+						if(militaryEntities.length)
+							ents = militaryEntities;
+					}
+				}
 
 				// Remove the bandbox hover highlighting
 				g_Selection.setHighlightList([]);

binaries/data/mods/public/gui/session/utility_functions.js

@@ -127,6 +127,17 @@ function isDefensive(entState)
 	return false;
 }
 
+function isSupport(entState)
+{
+	if(entState.identity)
+	{
+		var classes = entState.identity.classes;
+		if(classes && classes.length)
+			return (classes.indexOf("Support") != -1);
+	}
+	return false;
+}
+
 function damageTypesToTextStacked(dmg)
 {
 	if (!dmg)