MouseCameraControl

Code C#

//
//Filename: MouseCameraControl.cs
//
 
using UnityEngine;
 
[AddComponentMenu("Camera-Control/Mouse")]
public class MouseCameraControl : MonoBehaviour
{
    // Mouse buttons in the same order as Unity
    public enum MouseButton { Left = 0, Right = 1, Middle = 2, None = 3 }
 
    [System.Serializable]
    // Handles left modifiers keys (Alt, Ctrl, Shift)
    public class Modifiers
    {
        public bool leftAlt;
        public bool leftControl;
        public bool leftShift;
 
        public bool checkModifiers()
        {
            return (!leftAlt ^ Input.GetKey(KeyCode.LeftAlt)) &&
                (!leftControl ^ Input.GetKey(KeyCode.LeftControl)) &&
                (!leftShift ^ Input.GetKey(KeyCode.LeftShift));
        }
    }
 
    [System.Serializable]
    // Handles common parameters for translations and rotations
    public class MouseControlConfiguration
    {
 
        public bool activate;
        public MouseButton mouseButton;
        public Modifiers modifiers;
        public float sensitivity;
 
        public bool isActivated()
        {
            return activate && Input.GetMouseButton((int)mouseButton) && modifiers.checkModifiers();
        }
    }
 
    [System.Serializable]
    // Handles scroll parameters
    public class MouseScrollConfiguration
    {
 
        public bool activate;
        public Modifiers modifiers;
        public float sensitivity;
 
        public bool isActivated()
        {
            return activate && modifiers.checkModifiers();
        }
    }
 
    // Yaw default configuration
    public MouseControlConfiguration yaw = new MouseControlConfiguration { mouseButton = MouseButton.Right, sensitivity = 10F };
 
    // Pitch default configuration
    public MouseControlConfiguration pitch = new MouseControlConfiguration { mouseButton = MouseButton.Right, modifiers = new Modifiers{ leftControl = true }, sensitivity = 10F };
 
    // Roll default configuration
    public MouseControlConfiguration roll = new MouseControlConfiguration();
 
    // Vertical translation default configuration
    public MouseControlConfiguration verticalTranslation = new MouseControlConfiguration { mouseButton = MouseButton.Middle, sensitivity = 2F };
 
    // Horizontal translation default configuration
    public MouseControlConfiguration horizontalTranslation = new MouseControlConfiguration { mouseButton = MouseButton.Middle, sensitivity = 2F };
 
    // Depth (forward/backward) translation default configuration
    public MouseControlConfiguration depthTranslation = new MouseControlConfiguration { mouseButton = MouseButton.Left, sensitivity = 2F };
 
    // Scroll default configuration
    public MouseScrollConfiguration scroll = new MouseScrollConfiguration { sensitivity = 2F };
 
    // Default unity names for mouse axes
    public string mouseHorizontalAxisName = "Mouse X";
    public string mouseVerticalAxisName = "Mouse Y";
    public string scrollAxisName = "Mouse ScrollWheel";
 
    void LateUpdate ()
    {
        if (yaw.isActivated())
        {
            float rotationX = Input.GetAxis(mouseHorizontalAxisName) * yaw.sensitivity;
            transform.Rotate(0, rotationX, 0);
        }
        if (pitch.isActivated())
        {
            float rotationY = Input.GetAxis(mouseVerticalAxisName) * pitch.sensitivity;
            transform.Rotate(-rotationY, 0, 0);
        }
        if (roll.isActivated())
        {
            float rotationZ = Input.GetAxis(mouseHorizontalAxisName) * roll.sensitivity;
            transform.Rotate(0, 0, rotationZ);
        }
 
        if (verticalTranslation.isActivated())
        {
            float translateY = Input.GetAxis(mouseVerticalAxisName) * verticalTranslation.sensitivity;
            transform.Translate(0, translateY, 0);
        }
 
        if (horizontalTranslation.isActivated())
        {
            float translateX = Input.GetAxis(mouseHorizontalAxisName) * horizontalTranslation.sensitivity;
            transform.Translate(translateX, 0, 0);
        }
 
        if (depthTranslation.isActivated())
        {
            float translateZ = Input.GetAxis(mouseVerticalAxisName) * depthTranslation.sensitivity;
            transform.Translate(0, 0, translateZ);
        }
 
        if (scroll.isActivated())
        {
            float translateZ = Input.GetAxis(scrollAxisName) * scroll.sensitivity;
 
            transform.Translate(0, 0, translateZ);
        }
    }
 
}