ForceMode2D

Definition

• Type: Enum
• Namespace: UnityEngine
• Assembly: UnityEngine.Physics2DModule

public enum ForceMode2D

Remarks

Examples

//This script adds force to a Rigidbody. The kind of force is determined by which buttons you click.//Create a Sprite and attach a Rigidbody2D component to it//Attach this script to the Spriteusing UnityEngine;using UnityEngine.EventSystems;public class AddingForce : MonoBehaviour{    //Use to switch between Force Modes    enum ModeSwitching { Start, Impulse, Force };    ModeSwitching m_ModeSwitching;    //Use this to change the different kinds of force    ForceMode2D m_ForceMode;    //Start position of the RigidBody, use to reset    Vector2 m_StartPosition;    //Use to apply force to RigidBody    Vector2 m_NewForce;    //Use to manipulate the RigidBody of a GameObject    Rigidbody2D m_Rigidbody;    void Start()    {        //Fetch the RigidBody component attached to the GameObject        m_Rigidbody = GetComponent<Rigidbody2D>();        //Start at first mode (nothing happening yet)        m_ModeSwitching = ModeSwitching.Start;        //Initialising the force to use on the RigidBody in various ways        m_NewForce = new Vector2(-5.0f, 1.0f);        //This is the RigidBody's starting position        m_StartPosition = m_Rigidbody.transform.position;    }    void Update()    {        //Switching modes depending on button presses        switch (m_ModeSwitching)        {            //This is the starting mode which resets the GameObject            case ModeSwitching.Start:                //Reset to starting position of RigidBody                m_Rigidbody.transform.position = m_StartPosition;                //Reset the velocity of the RigidBody                m_Rigidbody.velocity = new Vector2(0f, 0f);                break;            //This is the Force Mode            case ModeSwitching.Force:                //Make the GameObject travel upwards                m_NewForce = new Vector2(0, 1.0f);                //Use Force mode as force on the RigidBody                m_Rigidbody.AddForce(m_NewForce, ForceMode2D.Force);                break;            //This is the Impulse Mode            case ModeSwitching.Impulse:                //Make the GameObject travel upwards                m_NewForce = new Vector2(0f, 1.0f);                //Use Impulse mode as a force on the RigidBody                m_Rigidbody.AddForce(m_NewForce, ForceMode2D.Impulse);                break;        }    }    //These are the Buttons for telling what Force to apply as well as resetting    void OnGUI()    {        //If reset button pressed        if (GUI.Button(new Rect(100, 0, 150, 30), "Reset"))        {            //Switch to start/reset case            m_ModeSwitching = ModeSwitching.Start;        }        //Impulse button pressed        if (GUI.Button(new Rect(100, 60, 150, 30), "Apply Impulse"))        {            //Switch to Impulse mode (apply impulse forces to GameObject)            m_ModeSwitching = ModeSwitching.Impulse;        }        //Force Button Pressed        if (GUI.Button(new Rect(100, 90, 150, 30), "Apply Force"))        {            //Switch to Force mode (apply force to GameObject)            m_ModeSwitching = ModeSwitching.Force;        }    }}

Fields