Beginner Level

In this tutorial series, we build an API client that connects to the REST API endpoints developed and maintained by Last10k.com developers. This API provides SEC filing data for different companies, including balance sheets, income statements, and statements of cash flows. Optional query parameters allow you to get annual 10-K and quarterly 10-Q statements. We will build an API client that uses linked lists to make a series of API requests, whose returned JSON-data can then be used to create and save NSManagedObjects in CoreData.
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In this tutorial series, we build an API client that connects to the Quandl REST API endpoint, downloads JSON data, and converts the data to NSManagedObjects that can be persisted in CoreData's NSPersistentStore.
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Intermediate Level

Interested in making a top-down shooter game? In this tutorial, we explore how to make a player sprite move to a touch location and orient itself accordingly. Making the player sprite move is a crucial part of building an exciting game.
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Following up on the last tutorial, we continue to build a top-down shooter game, exploring how to make a player sprite change orientation and move forward by means of an on-screen control as opposed to direct on-screen touch. Making the player sprite move is a crucial part of building an exciting game.
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In this tutorial, we build a simple fish game that uses Gameplaykit's Agent-Goal behavior to drive the movement of game objects.
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In this tutorial series, we develop a 2D fish game inspired by one of Apple's demo games that utilizes the agent-goal simulation in GameplayKit to control player and enemy movement. We find the agent-goal simulation to be well-suited to the mechanics of this particular game and explore different GKGoals and GKRules to manage the agent-driven behavior of the game entities.
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Advanced Level