Refactored getDestroyAP

- Split the calculations into getAttackApGain. Allows for other
functions to get the AP data.
- Renamed to getAttackApGainText as it isn't just destroying it is also
capturing. Originally the method only calculated the destroy values.

code/portal_info.js

@@ -66,3 +66,35 @@ window.getAvgResoDist = function(d) {
   });
   return sum/resos;
 }
+
+window.getAttackApGain = function(d) {
+  var resoCount = 0;
+
+  $.each(d.resonatorArray.resonators, function(ind, reso) {
+    if (!reso)
+      return true;
+    resoCount += 1;
+  });
+
+  var linkCount = d.portalV2.linkedEdges ? d.portalV2.linkedEdges.length : 0;
+  var fieldCount = d.portalV2.linkedFields ? d.portalV2.linkedFields.length : 0;
+
+  var resoAp = resoCount * DESTROY_RESONATOR;
+  var linkAp = linkCount * DESTROY_LINK;
+  var fieldAp = fieldCount * DESTROY_FIELD;
+  var destroyAp = resoAp + linkAp + fieldAp;
+  var captureAp = CAPTURE_PORTAL + 8 * DEPLOY_RESONATOR + COMPLETION_BONUS;
+  var totalAp = destroyAp + captureAp;
+
+  return {
+    totalAp : totalAp,
+    destroyAp : destroyAp,
+    captureAp : captureAp,
+    resoCount : resoCount,
+    resoAp : resoAp,
+    linkCount : linkCount,
+    linkAp : linkAp,
+    fieldCount : fieldCount,
+    fieldAp : fieldAp
+  };
+};