Tried to use ts to catch bugs, it's pretty useless for now.

src/types.d.ts

@@ -1,38 +1,103 @@
-import {rawUpgrades} from "./rawUpgrades";
+import { rawUpgrades } from "./rawUpgrades";
+
+export type colorString = string;
 
 export type RawLevel = {
-    name: string;
-    size: number;
-    bricks: string;
-    svg: string;
-    color: string;
+  name: string;
+  size: number;
+  bricks: string;
+  svg: string;
+  color: string;
 };
 export type Level = {
-    name: string;
-    size: number;
-    bricks: string[];
-    svg: string;
-    color: string;
-    threshold?: number;
-    sortKey?: number;
+  name: string;
+  size: number;
+  bricks: colorString[];
+  svg: string;
+  color: string;
+  threshold?: number;
+  sortKey?: number;
 };
 
-export type Palette = { [k: string]: string }
+export type Palette = { [k: string]: string };
 
-export type Upgrade={
-      threshold: number;
-        giftable: boolean;
-        "id": string;
-        "name": string;
-        "max": number;
-        help: (lvl:string) => string;
-        fullHelp: string;
-        requires:PerkId|''
+export type Upgrade = {
+  threshold: number;
+  giftable: boolean;
+  id: string;
+  name: string;
+  icon: string;
+  max: number;
+  help: (lvl: string) => string;
+  fullHelp: string;
+  requires: PerkId | "";
+};
+
+export type PerkId = (typeof rawUpgrades)[number]["id"];
+
+declare global {
+  interface Window {
+    webkitAudioContext?: typeof AudioContext;
+  }
+  interface Document {
+    webkitFullscreenEnabled?: boolean;
+    webkitCancelFullScreen?: ()=>void;
+  }
+  interface Element {
+    webkitRequestFullscreen: typeof Element.requestFullscreen
+  }
+}
+
+export type Coin={
+   points:number;
+  color: colorString;
+  x:number;
+  y:number;
+  previousx:number;
+  previousy:number;
+   vx:number;
+  vy:number;
+  sx:number;
+  sy:number;
+  a:number;
+  sa:number;
+  weight:number;
+  destroyed?:boolean;
+  coloredABrick?:boolean;
+}
+export type Ball = {
+    x:number;
+            previousx:number;
+            y:number;
+            previousy:number;
+            vx:number;
+            vy:number;
+            sx:number;
+            sy:number;
+            sparks:number;
+            piercedSinceBounce:number;
+            hitSinceBounce:number;
+            hitItem: {index:number, color:string}[],
+            sapperUses:number;
+  destroyed?:boolean;
 }
 
 
-export type PerkId = typeof rawUpgrades[number]['id']
+export type FlashTypes= "text"|"particle"|'ball'
+
+export type Flash = {
+       type: FlashTypes;
+        text?:string;
+        time:number;
+        color:colorString;
+        x:number;
+        y:number;
+        duration:number;
+        size:number;
+        vx?:number;
+        vy?:number;
+        ethereal?:boolean;
+        destroyed?:boolean;
+
+}
 
-declare global {
-    interface Window { webkitAudioContext: typeof AudioContext; }
-}