FreeLookCinematicTrackModifier.c

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class FreeLookCinematicTrackModifier : CinematicTrackModifier
{
    float lastX;
    float lastY;
    float deltaX;
    float deltaY;
    float inactiveX;
    float inactiveY;
    float deltaCumulX;
    float deltaCumulY;
    bool firstFrame = true;
    
    bool invertMouse = false;
    int signMouse = 1;
    
    [Attribute(defvalue:"45", desc:"MaxAngleX")]
    int maxAngleX;
    
    [Attribute(defvalue:"30", desc:"MaxAngleX")]
    int maxAngleY;
    
    [Attribute(defvalue:"true")]
    bool returnCameraAfterInactivity;
    
    override vector OnApplyModifierVector(float time, vector originalValue)
    {
        
        InputManager inputManager = GetGame().GetInputManager();
        inputManager.ActivateContext("CharacterFreelookMouseContext");
        inputManager.ActivateContext("CharacterFreelookGamepadContext");
 
        // Get Mouse Movement
        float positionX = inputManager.GetActionValue("MouseX");
        float positionY = inputManager.GetActionValue("MouseY");
        
        BaseContainer inputDeviceSettings = GetGame().GetEngineUserSettings().GetModule("InputDeviceUserSettings");
        
        if (inputDeviceSettings)
            inputDeviceSettings.Get("MouseInvert", invertMouse);
        
        if (invertMouse)
             signMouse = -1;
        else
            signMouse = 1;
        
        if (firstFrame)
        {
            firstFrame = false;
            lastX = positionX;
            lastY = positionY;
            return originalValue;   
        }
        
        deltaX = (positionX - lastX) / 15 - inputManager.GetActionValue("FreelookGamepadLeft") + inputManager.GetActionValue("FreelookGamepadRight");
        deltaY = (-signMouse * positionY + signMouse * lastY) / 15 + inputManager.GetActionValue("FreelookGamepadUp") - inputManager.GetActionValue("FreelookGamepadDown");;
        
        lastX = positionX;
        lastY = positionY;
        
        if (deltaX == 0 && returnCameraAfterInactivity) //no x input move
        {
            inactiveX += 0.001;
            
            if (inactiveX > 0.06) //for more than second
                deltaCumulX = deltaCumulX / (1 + inactiveX - 0.06); //slowly get back to original camera
        }
        else //if there is input - full impact on camera
        {
            inactiveX = 0;
            deltaCumulX += deltaX;
        }
        
        if (deltaY == 0 && returnCameraAfterInactivity) //no y input move
        {
            inactiveY += 0.001;
            
            if (inactiveY > 0.06) //for more than second
                deltaCumulY = deltaCumulY / (1 + inactiveY - 0.06); //slowly get back to original camera
        }
        else //if there is input - full impact on camera
        {
            inactiveY = 0;
            deltaCumulY += deltaY;
        }
        
        //Print(deltaCumulY);
        deltaCumulX = Math.Clamp(deltaCumulX, -maxAngleX, maxAngleX);
        deltaCumulY = Math.Clamp(deltaCumulY, -maxAngleY, maxAngleY);
        
        vector newValue;    
        newValue[0] = originalValue[0] + deltaCumulY;
        newValue[1] = originalValue[1] + deltaCumulX;
        newValue[2] = originalValue[2];
        
        return newValue;
    }
};