import { Entity, ComponentConstructor, Component } from "ecsy"


export function addOrSetComponent(entity: Entity, Component: ComponentConstructor<Component>, values: any) {
  if(entity.hasComponent(Component)){
    //component exists, copy values into it
    let component: any = entity.getMutableComponent(Component)
    if(component.copy){
      component.copy(values)
    } else {
      for (var name in values) {
        component[name]= values[name]
      }
    }
  } else {
    //component doesn't exist, add new one
    entity.addComponent(Component, values)
  }
}

export function clamp(value: number, min:number, max:number) {
  return Math.min(Math.max(value, min), max)
};

export function lerp(from: number, to:number, at:number) {
  return from + (to - from) * at;
};