Unity Game Development : A Beginner's Guide to Game Programming by Jiho Seok

Author:Jiho Seok
Language: eng
Format: epub
Tags: unity c#, unity 3D, unity game development, unity game engine, unity 3d c#, unity 3d game development, unity 2d game development
Publisher: Jiho Seok
Published: 2025-02-11T00:00:00+00:00

Script Setup

S tart by creating a script, CharacterDash.cs , and attach it to your character. This script will handle input detection for the dash action and apply a temporary speed boost.

public float dashSpeed = 20f; // Speed of the dash

public float dashDuration = 0.2f; // How long the dash lasts

public float dashCooldown = 1f; // Cooldown between dashes

private Rigidbody2D rb;

private Vector2 lastMoveDirection;

private float dashTimeLeft; // Remaining time of the current dash

private float lastDash = -Mathf.Infinity; // Time since last dash

void Awake ()

{

rb = GetComponent <Rigidbody2D>();

}

void Update ()

{

// Capture the direction of movement

float moveX = Input. GetAxisRaw ("Horizontal");

float moveY = Input. GetAxisRaw ("Vertical");

if(moveX != 0 || moveY != 0)

{

lastMoveDirection = new Vector2(moveX, moveY).normalized;

}

if (Input. GetKeyDown (KeyCode.LeftShift) && Time.time >= lastDash + dashCooldown)

{

StartDash ();

}

if (dashTimeLeft > 0)

{

ContinueDash ();

}

}

private void StartDash ()

{

dashTimeLeft = dashDuration;

lastDash = Time.time;

// Optional: Add a visual or audio cue here

}

private void ContinueDash ()

{

rb.velocity = lastMoveDirection * dashSpeed;

dashTimeLeft -= Time.deltaTime;

if(dashTimeLeft <= 0)

{

rb.velocity = Vector2.zero; // Optional: Set to zero or revert to normal movement speed

}

}

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