initial commit

src/HUD/Timers/Countdown.ts

@@ -0,0 +1,46 @@
+export default class Countdown {
+    last: number;
+    time: number;
+    step: (time: number) => void;
+    on: boolean;
+    resetFunc?: Function;
+
+    constructor(step: (time: number) => void){
+        this.last = 0;
+        this.time = 0;
+        this.on = false;
+        this.step = step;
+    }
+    onReset(func: Function) {
+        this.resetFunc = func;
+    }
+    stepWrapper = (time: number) =>{
+        if(this.time < 0) return this.reset();
+        if(!this.on) return this.reset();
+        if(!this.last) this.last = time;
+        if(this.time !== Number((this.time - (time - this.last)/1000))){
+            this.time = Number((this.time - (time - this.last)/1000));
+            this.step(this.time);
+        }
+        this.last =time;
+
+
+        if(this.last) requestAnimationFrame(this.stepWrapper)
+    }
+
+    go(duration: string | number){
+        //console.log("STARTED WITH ", duration);
+        if(typeof duration === "string") duration = Number(duration);
+        if(Math.abs(duration - this.time) > 2) this.time = duration;
+        this.on = true;
+        if(!this.last ) requestAnimationFrame(this.stepWrapper);
+
+    }
+
+    reset(){
+        this.last = 0;
+        this.time = 0;
+        this.on = false;
+        if(this.resetFunc) this.resetFunc();
+    }
+}