The summary of ‘Horizontal Movement (Let's Make An Arcade Game Like Space Invaders!) — Unity 2D Tutorial’

The video tutorial demonstrates how to add a player ship graphic to a game and enable it to move horizontally with player control. It covers aspects like importing graphics, creating a player controller script, adjusting movement speed, utilizing input manager for player control, and implementing boundaries using box colliders and rigidbody2d. The tutorial emphasizes adjusting ship movement based on player input for responsiveness and ensuring the ship stays within the designated play area.

00:00:00

In this part of the video, the tutorial begins by showing how to add a player ship graphic into a game and make it move back and forth with button presses. The speaker demonstrates how to import the ship graphic into the game assets window, resize it properly to avoid blurriness, and adjust the filter for crisp pixel art appearance. The tutorial then covers creating a player controller script to enable the ship to move from side to side by accessing and updating its transform component with the translate function along a Vector2 coordinate variable.

00:03:00

In this segment of the video, the creator implements movement for their ship in a game by adjusting its speed and introducing player control. They modify the ship’s movement to occur every second by using time.deltaTime. The move speed variable is introduced to control the ship’s speed, set initially at 5. The input manager system in Unity is utilized to enable player control via keyboard inputs for horizontal movement. A new float variable, hInput, is created to capture the horizontal input from the player, with input.GetAxisRaw translating button presses into -1, 0, or 1 values for left, no press, and right inputs, respectively.

00:06:00

In this segment of the video, the speaker explains how to incorporate horizontal input into the movement formula to achieve left and right movement. They demonstrate how the ship’s movement changes based on player input, adjusting the speed for responsiveness. The importance of saving changes made during play mode is emphasized. The tutorial also covers creating boundaries using box colliders to prevent the ship from moving off-screen. Additionally, the addition of a rigidbody2d with adjusted gravity scale allows for interaction with the boundaries, ensuring the ship stays within the designated area. The segment concludes with a summary of the achieved ship movement and boundaries setup.