diff --git a/.DS_Store b/.DS_Store
index 658f0e2..c04815a 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..91dfed8
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+.DS_Store
+node_modules
\ No newline at end of file
diff --git a/src/Base.ts b/src/Base.ts
new file mode 100644
index 0000000..648f68c
--- /dev/null
+++ b/src/Base.ts
@@ -0,0 +1,21 @@
+export abstract class Base {
+	protected count: number;
+	constructor(readonly name: string){
+		this.count = 0;
+	}
+	getName(){
+		return this.name;
+	}
+	getCount(){
+		return this.count;
+	}
+	setCount(newCount: number){
+		this.count = newCount;
+	}
+	incrementCount(amount = 1){
+		this.count += amount;
+	}
+	decrementCount(amount = 1){
+		this.count -= amount;
+	}
+}
\ No newline at end of file
diff --git a/src/Engine.ts b/src/Engine.ts
new file mode 100644
index 0000000..76149da
--- /dev/null
+++ b/src/Engine.ts
@@ -0,0 +1,4 @@
+import { Harvester } from "./Harvester";
+import { Resource } from "./Resource";
+import { Upgrade } from "./Upgrade";
+
diff --git a/src/Harvester.ts b/src/Harvester.ts
new file mode 100644
index 0000000..9b918d3
--- /dev/null
+++ b/src/Harvester.ts
@@ -0,0 +1,21 @@
+import { Base } from "./Base";
+
+export class Harvester extends Base{
+	private multiplier: number;
+	constructor(name: string, public cost: Function, public update: Function){
+		super(name);
+		this.multiplier = 1;
+	}
+	getMultiplier(){
+		return this.multiplier;
+	}
+	setMultiplier(newMultiplier: number){
+		this.multiplier = newMultiplier;
+	}
+	incrementMultiplier(amount = 1){
+		this.multiplier += amount;
+	}
+	decrementMultiplier(amount = 1){
+		this.multiplier -= amount;
+	}
+}
\ No newline at end of file
diff --git a/src/Resource.ts b/src/Resource.ts
index 526dbfd..eaedb96 100644
--- a/src/Resource.ts
+++ b/src/Resource.ts
@@ -1,6 +1,15 @@
-export class Resource {
-	constructor(private name: string){}
-	getName(){
-		return `Name: ${this.name}`
+import { Base } from "./Base";
+
+export class Resource extends Base {
+	constructor(name: string){
+		super(name);
 	}
+	decrementCount(num: number){
+		if(num > this.count){
+			throw("Not enough " + this.name);
+		}else{
+			this.count -= num;
+		}
+	}
+
 }
\ No newline at end of file
diff --git a/src/Upgrade.ts b/src/Upgrade.ts
new file mode 100644
index 0000000..adab290
--- /dev/null
+++ b/src/Upgrade.ts
@@ -0,0 +1,22 @@
+import { Base } from "./Base";
+
+export class Upgrade extends Base{
+	private maxCount: number;
+	constructor( name: string, theCount: number, theMax: number, public cost: Function, public effect: Function){
+		super(name);
+		this.maxCount = 0;
+	}
+	getMaxCount(){
+		return this.maxCount;
+	}
+	setMaxCount(newMax: number){
+		this.maxCount = newMax;
+	}
+	incrementMaxCount(amount = 1){
+		this.maxCount += amount;
+	}
+	decrementMaxCount(amount = 1){
+		this.maxCount -= amount;
+	}
+
+}
\ No newline at end of file
diff --git a/src/__tests__/Harvester.spec.ts b/src/__tests__/Harvester.spec.ts
new file mode 100644
index 0000000..e69de29
diff --git a/src/__tests__/Upgrade.spec.ts b/src/__tests__/Upgrade.spec.ts
new file mode 100644
index 0000000..e69de29