ta

//cache the isActive() function.. This requires all structures to have memory
//see https://stackoverflow.com/questions/30147800/extend-source-prototype-to-have-a-memory-object for an example

Object.defineProperty(OwnedStructure.prototype, 'IsActive', { 
	get: function() {
	    if (!this.my) return false //out ours
	    if (!this.memory.active) this.memory.active = this.isActive() //initialize
	    return this.memory.active
	},
	configurable: true,
});

//determine if we need to refresh the isActive() cache on an RCL downgrade
Room.prototype.ActiveBuildingCache = function() {
    //level didn't change
    if (this.memory.currentlevel === this.controller.level) return true
    
    //We increased the RCL. Therefore, everything should be the same
    if (this.memory.currentlevel < this.controller.level) {
        this.memory.currentlevel = this.controller.level //set to new RCL
    } else {
        //decreased level.. Need to recalc what is active and what isn't
        this.memory.currentlevel = this.controller.level //set the new RCL
        const mystructures = this.find(FIND_MY_STRUCTURES) //get all structures
        
        for (let s of mystructures) delete s.memory.active //delete the active flag
    }
    
    return true
}