AoE and Damage over time?

I've got a pretty simple script that adds or takes away value from bars and it is pretty much the backbone of the homebrew system I use for my group. I've been wondering if there's a method to simply code AoE damage or Damage over time values in a similar way? I figure the latter may need use of TokenMod in some form. I've tried using SmartAoE, but as we have a tendency to use generic tokens; it doesn't appear to work on anything without a character sheet to pull from. Ideal examples: If a target token is selected; deal rolled damage to enemies within two squares If a target token is selected; deal damage every turn as long as they have a status marker on them. The script is below, I did not write it; I'll be honest I can't remember where we even got it from, we've been using it for years: // USER CONFIGURATION     // Set the PREVENT_OVERMAX variable to true to prevent the value of a     // token's bar from being greater than its max value. If there is no max     // value set, it will not stop the current bar value from increasing.     var PREVENT_OVERMAX = true;          // Set the ANNOUNCE_CHANGE variable to true to send a message to the chat     // window, announcing which token gained or lost points on a bar.     var ANNOUNCE_CHANGE = true;          // BAR CONFIGURATION - These are used to identify which bar to adjust. The     // example below was made for a specific Roll20 user's preferences. These     // bar keys must be lowercase, though players can use any case in their     // macro since the script converts everything to lower case.     var Bar1Key = "h";  // (H)ealth     var Bar2Key = "s";  // (S)hielding     var Bar3Key = "e";  // (E)nergy          // BAR NAMES - These names are used if ANNOUNCE_CHANGE is set to true. The     // format of the annoucement is: Name gained/lost # BarName.     var BarNames = ["Health", "Shielding", "Energy"]; on("chat:message", function(msg) {     // Exit if not an api command     if (msg.type != "api") return;          // Get the API Command     msg.who = msg.who.replace(" (GM)", "");     msg.content = msg.content.replace("(GM) ", "");     var n = msg.content.split(" ");     var command = n[0].toLowerCase();          // Alter the Selected or Targeted Token's Bars     // Usage    : !alter target bar amount     // Example    : !alter @{selected|token_id} h -4     // Example    : !alter @{target|token_id} m ?          if (command == "!alter") {         // Define variables...         var Target = getObj("graphic", n[1]);         var Bar = 0;             Bar = (n[2].toLowerCase() == Bar1Key) ? 1 : 0;             Bar = (n[2].toLowerCase() == Bar2Key) ? 2 : Bar;             Bar = (n[2].toLowerCase() == Bar3Key) ? 3 : Bar;             if (Bar == 0) {                 sendChat("ERROR", "/w " + msg.who + " That is not a valid bar. Please use the first letter as follows: H(ealth), S(hielding), or E(nergy).");                 return;             }         var AlterValue = n[3];         var TargetBarCurrent = parseInt(Target.get("bar" + Bar + "_value"));         var TargetBarMax = parseInt(Target.get("bar" + Bar + "_max"));         var StartingValue = TargetBarCurrent;                  // Check for a + or - sign at the start of the AlterValue...         var OperandCheck = AlterValue.charAt(0);         AlterValue = (OperandCheck == "-") ? AlterValue.substring(1) : AlterValue;         AlterValue = (OperandCheck == "+") ? AlterValue.substring(1) : AlterValue;                  if (AlterValue.indexOf("d") != -1) {             sendChat("", "/r " + AlterValue, function(outs) {                 AlterValue = parseInt(JSON.parse(outs[0].content).total);                 if (OperandCheck != "-") {                     if (PREVENT_OVERMAX == true) {                         AlterValue = (AlterValue + TargetBarCurrent > TargetBarMax) ? TargetBarMax - TargetBarCurrent : AlterValue;                     }                     Target.set("bar" + Bar + "_value", TargetBarCurrent += AlterValue);                     if (ANNOUNCE_CHANGE) sendChat("", Target.get("name") + " gained " + AlterValue + " " + BarNames[Bar-1] + ".");                 } else {                     Target.set("bar" + Bar + "_value", TargetBarCurrent -= AlterValue);                     if (ANNOUNCE_CHANGE) sendChat("", Target.get("name") + " lost " + AlterValue + " " + BarNames[Bar-1] + ".");                 }             });         } else {             if (OperandCheck != "-") {                 AlterValue = parseInt(AlterValue);                 if (PREVENT_OVERMAX == true) {                     AlterValue = (AlterValue + TargetBarCurrent > TargetBarMax) ? TargetBarMax - TargetBarCurrent : AlterValue;                 }                 Target.set("bar" + Bar + "_value", TargetBarCurrent += AlterValue);                 if (ANNOUNCE_CHANGE) sendChat("", Target.get("name") + " gained " + AlterValue + " " + BarNames[Bar-1] + ".");             } else {                 Target.set("bar" + Bar + "_value", TargetBarCurrent -= AlterValue);                 if (ANNOUNCE_CHANGE) sendChat("", Target.get("name") + " lost " + AlterValue + " " + BarNames[Bar-1] + ".");             }         }     } });