Navigating the camera's horizontal movement with ThreeJSWould you like to learn how

Currently in my three.js program, pressing the "w" key moves the camera forward. The code snippet responsible for this action is as follows:

if (keys.indexOf(playerControls["forward"]) != -1) {
    camera.translateZ(-0.1);
}

I am now looking to modify the behavior so that when "w" is pressed, the camera moves only horizontally (along the x and z axes) without vertical movement (y-axis). Can anyone provide a solution that achieves this requirement, preferably avoiding complex trigonometric calculations?

javascriptthree.js

Answer №1

Using the translateZ property is crucial for adjusting the camera's position along the direction you're facing. However, to ensure the correct Y position, a simple solution involves updating it following each movement:

const camElevation = 5;

if (keys.includes(playerControls["forward"])) {
    camera.translateZ(-0.1);
    camera.position.y = camElevation;
}

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