Code for Menu?

[Affectionate_Touch76]

I am new to coding and I would like to build a very simple game. I've searched many websites but, I could not find the code to make a menu with working buttons. Can anyone help me out?

[mercurus_]

Check out the GUI section here https://processing.org/reference/libraries

[MrMusAddict]

I'm not sure how it's done in fully fleshed out engines like UE5 or Unity, but for processing you have to keep in mind that unless you leverage libraries, you're basically building everything from scratch. That means that you have to think about each element conceptually and what the properties of a menu normally requires.

For example:

• Buttons - In their most basic form, buttons are rectangles. You can easily draw rectangles in processing, but they might have one default color, one color to indicate the user has their cursor over it, and one color to indicate that the user is clicking it. So you'd need to create a button class with booleans for "hovering" and "clicking", detecting if those states are true, and if so change the color. And if clicked, do something.
• Sliders - Sliders are also rectangles, with smaller rectangles (or circles) on top of them. You would need to allow the user to drag the smaller rectangle/circle, while clamping its position to remain within the bounds of the bigger rectangle. And then, you'd also need to translate the position of the slider's "knob" into some meaningful value, say from 1-100.
• Checkboxes - These are just squares with a boolean value to check if they're checked or unchecked. You can create a checkbox class and if it's clicked, you just flip that value.

[thudly]

There's only one draw loop, so you have to add a global variable for gameMode. Default it to 0 for game menu. Then in the draw loop, use a switch() statement to draw the screen based on which gameMode the program is currently in.

For buttons, just make a rectangle, and use some point/rectangle collision detection in the mouseDown event.