GetMousebuttonDown unity

                
                        if (Input.GetMouseButtonDown(1))
//This is too stop spaming the gun
                    
                

left moust click unity

                        
                                //Left mouse Click
if(Input.GetMouseButtonDown(0))

//Right Mouse Click
if(Input.GetMouseButtonDown(1))

//Scroll Wheel
if(Input.GetMouseButtonDown(2))
                            
                        

OnMousedown unity ui

                        
                                public class Combat_spell : MonoBehaviour, IPointerClickHandler,
 IPointerExitHandler, IPointerEnterHandler
{
    public void OnPointerClick(PointerEventData eventData)
    {
        UseSpell();
    }

    public void OnPointerEnter(PointerEventData eventData)
    {
        Scene_Main.display_Description("Frappe", "Inflige 5 à 7 dégats", 3, -2, this.transform.position, 3);
    }

    public void OnPointerExit(PointerEventData eventData)
    {
        Scene_Main.display_Description_Erase();
    }
}
                            
                        

unity left mouse button

                        
                                // ============== Primary Mouse Button (Left Click) ========================
// It is true aslong the user holds the left mouse button
// Like shooting with an Automatic Gun - AK 47 :P
Input.GetKey(KeyCode.Mouse0)

// It only triggers 1 time when you click
// Like shooting a semi automatic pistol - Desert Eagle ;)
Input.GetButtonDown("Fire1")
                            
                        

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