Hey there, let's work through this annoying UI click-through issue you're dealing with—this is a super common gotcha when mixing UI menus with player input logic, so I've got a few straightforward, actionable fixes for you.

1. Block Input to Game Objects When UI is Active #

The core problem here is that your attack logic isn't checking if the mouse is over a UI element before triggering. Unity has a built-in way to handle this with the EventSystem:

Add this check directly in your attack input logic (wherever you detect mouse clicks for attacks):

void Update()
{
    if (Input.GetMouseButtonDown(0))
    {
        // Check if the cursor is hovering over any UI element
        if (EventSystem.current.IsPointerOverGameObject())
        {
            return; // Skip attack logic entirely if we're clicking UI
        }
        // Only trigger attack if we're not interacting with UI
        TriggerAttackAnimation();
    }
}

This ensures that any click that hits a UI element (buttons, panels, etc.) won't leak through to your player's attack code.

2. Use UI Panel Raycast Blocking #

Make sure your pause menu's background panel is set to block raycasts—this is a quick UI setting that prevents clicks from passing through to objects below:

• Select your pause menu's panel object (the one covering the screen)
• If it doesn't have an Image component, add one (you can set its alpha to 0 to keep it invisible)
• In the Image inspector, ensure the Block Raycasts checkbox is checked

This tells Unity's raycasting system to stop at the UI panel, so clicks won't reach the game world behind it.

3. Pause/Disable Attack Logic When Menu is Open #

Add a global pause state flag to your game to completely disable attack input while the menu is active. This adds an extra layer of protection against input leaks:

First, set up a pause flag in your player/attack script:

public bool isGamePaused = false;

void Update()
{
    if (isGamePaused) return; // Exit early if game is paused

    if (Input.GetMouseButtonDown(0))
    {
        TriggerAttackAnimation();
    }
}

Then, hook this up to your pause menu buttons:

• When opening the pause menu: set isGamePaused = true
• When clicking "Continue": set isGamePaused = false

4. Fix Queued Inputs (Multiple Attacks After Resume) #

The issue where multiple clicks lead to multiple attacks after resuming happens because Unity queues input events while the game is paused. To fix this, add a quick "ignore first click" flag when resuming:

private bool ignoreFirstClickAfterResume = false;

public void OnResumeButtonClicked()
{
    isGamePaused = false;
    ignoreFirstClickAfterResume = true; // Mark to skip the next click
}

void Update()
{
    if (isGamePaused) return;

    if (Input.GetMouseButtonDown(0))
    {
        if (ignoreFirstClickAfterResume)
        {
            ignoreFirstClickAfterResume = false;
            return; // Skip the queued click
        }
        TriggerAttackAnimation();
    }
}

Recommended Workflow #

Start with combining fixes 1 and 2—these two alone will solve 90% of click-through cases. If you still see the queued attack issue, add fix 4 to clean up leftover input events.

内容的提问来源于stack exchange，提问作者Mir Usmanov