5 Ways To Implement An Air Dash Mechanic In Gamemaker 2024

How to Implement an Air Dash Mechanic in GameMaker for Platformers

Learn how to add an air dash mechanic to your GameMaker platformer with this comprehensive tutorial. Explore the concept of state machines, dash abilities, and a cool dash trail effect.

This tutorial guides you on creating an air dash mechanic in GameMaker for a basic platformer.
The key concept involves implementing a state machine to manage the dash ability.
Additional features, like a dash trail effect, are explained for a more visually appealing game.

This tutorial walks you through the process of adding an air dash mechanic to a basic platformer using GameMaker. The primary focus is on implementing a state machine to manage the dash ability, and it also introduces a dash trail effect for a more visually appealing game.

Setting the Foundation To begin, assume you have a basic platformer. The tutorial advises you on how to integrate an air dash mechanic similar to the one shown in the 2022 Platformer tutorial. This approach can be adapted for various platformer setups.
State Machine Basics The core concept is to create a state machine that separates the player's regular state from the dash state. This involves shifting code to the "StateFree" function and managing the "state" variable in the "create" event.
Implementing Dash Controls In the step event, you set up controls for upward and downward movement, as well as the dash input. These controls are essential for triggering the dash action. The "canDash" variable keeps track of when the player can dash, with resets upon landing. Additionally, you define "dashDistance" and "dashTime" to determine the dash's duration and distance.
Dash Mechanics Within the "StateFree" function, you manage the transition to the dash state. When the player meets the conditions (canDash is true, and the dash key is pressed), you handle the following steps disabling further dashing, resetting the jump buffer, determining the dash direction based on input, calculating the dash speed, and setting the state to "StateDash."
StateDash Implementation The "StateDash" function is created to handle dash collisions and movement. You can reuse collision code from the "StateFree" function while ensuring that jump and dash-related variables are not reset. To manage the dash direction, you set the speeds using "lengthdir_x" and "lengthdir_y." To end the dash, you reduce the dash energy each step and return to the "StateFree" state when the energy is depleted.
Adding a Dash Trail Effect For a more visually appealing dash, a trail effect is introduced. An object called "oTrail" is created, which decreases its image alpha over time and self-destructs. In the player's dash state, you generate this trail effect with a "with" statement and "instance_create_depth," positioning it one layer below the player. You can customize the trail's appearance by matching the player's sprite index, adjusting alpha, and adding a color blend.
A Minor Issue The tutorial acknowledges a minor issue where dashing without a specific direction always dashes to the right. It suggests this as homework for readers to explore and resolve.

In conclusion, this tutorial equips you with the knowledge to create an air dash mechanic in GameMaker. It emphasizes the importance of a state machine to manage the dash ability, introduces additional features like a dash trail effect, and encourages you to explore and improve upon the mechanics. For more GameMaker tutorials and game development content, you can subscribe to the creator's channel or support them on Patreon.

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