How to use onmousedown unity

using UnityEngine.EventSystems;

public class ClickDetector : MonoBehaviour, IPointerDownHandler, IPointerClickHandler,
    IPointerUpHandler, IPointerExitHandler, IPointerEnterHandler,
    IBeginDragHandler, IDragHandler, IEndDragHandler
{
    public void OnBeginDrag(PointerEventData eventData)
    {
        Debug.Log("Drag Begin");
    }

    public void OnDrag(PointerEventData eventData)
    {
        Debug.Log("Dragging");
    }

    public void OnEndDrag(PointerEventData eventData)
    {
        Debug.Log("Drag Ended");
    }

    public void OnPointerClick(PointerEventData eventData)
    {
        Debug.Log("Clicked: " + eventData.pointerCurrentRaycast.gameObject.name);
    }

    public void OnPointerDown(PointerEventData eventData)
    {
        Debug.Log("Mouse Down: " + eventData.pointerCurrentRaycast.gameObject.name);
    }

    public void OnPointerEnter(PointerEventData eventData)
    {
        Debug.Log("Mouse Enter");
    }

    public void OnPointerExit(PointerEventData eventData)
    {
        Debug.Log("Mouse Exit");
    }

    public void OnPointerUp(PointerEventData eventData)
    {
        Debug.Log("Mouse Up");
    }
}

//be sure to use the unity system. above

void OnMouseDown()
    {
        Destroy(gameObject);
    }

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();
    }
}

Similar codes

1 vote212 views1 answer
Slider.onchanged in unity
C#Unity
2 votes145 views1 answer
Unity comparetag
C#
11 votes132 views2 answers
Unity how to change rotation
C#
26 votes190 views4 answers
Unity print
C#Unity
0 vote162 views1 answer
Unity break if statement
C#Unity
0 vote146 views1 answer
Connection string .net core
C#
-3 votes133 views1 answer
How to split a string by in c#
C#
1 vote140 views1 answer
C# winforms textbox to int
C#
0 vote130 views1 answer
Wpf how to focus on element
C#
0 vote133 views1 answer
Invert string c#
C#