Power Roll for Foundry VTT

power-roll.js

// Original work done by Acehigh
// Modified by Jon de Nor

const callback = (html, event) => ({
   value: html.find('input').val() || '0',
   action: event?.currentTarget.dataset.button ?? 'normal',
});

const buttons = {
   dblbane: { label: "Double Bane", callback },
   bane: { label: "Bane", callback },
   normal: { label: "Normal", callback },
   edge: { label: "Edge", callback },
   dbledge: { label: "Double Edge", callback }
};

let rollConfig = await Dialog.wait({
   title: 'Roll',
   content: '<form><div class="form-group"><label>Modifier:</label><div class="form-fields"><input type="number" value="2" /></div></div></form>',
   buttons,
   default: 'normal',
}).catch(_ => null);
if (!rollConfig)
   return;

edgeBaneMod =
   rollConfig.action == 'edge' ? '+ 2' :
      rollConfig.action == 'bane' ? '- 2' :
         "";

const roll = await new Roll(`2d10 ${edgeBaneMod} + ${rollConfig.value}`).evaluate();

if (roll.total < 12)
   tier = 1
else if (roll.total < 17)
   tier = 2
else
   tier = 3

if (rollConfig.action == 'dbledge' && tier < 3)
   tier++;
if (rollConfig.action == 'dblbane' && tier > 1)
   tier--;

//Always get a tier 3 result on roll of 20
if (roll.dice[0].total === 20)
   tier = 3;

const critMessage = roll.dice[0].total > 18
   ? '<br />Critical Success!'
   : '';
await roll.toMessage({
   speaker: ChatMessage.implementation.getSpeaker({ actor }),
   flavor: `<div style="text-align:center; margin-top: .5em"><h1>Tier: ${tier}${critMessage}</h1><p>${buttons[rollConfig.action].label}</p></div>`
});