using Godot;
using System;

public partial class Sniper : Node, ITool {

    public int ToolID { get{ return 0; } } // Match ToolID to ItemStat Index

    Options _Options;
    Reference _Reference;

    float BulletSpawnSpacing = 2;   // Distance off the front of the camera that the bullet spawn

    bool isZoomed = false;
    float ZoomFOV = 30;
    float _normalZoom;

    float HipAccuracy = 5;          // Maximum offset in degrees | 15 would be 7.5 deg in each direction
    float HipRecoil = 5;            // Maximum offset in degrees | 5 would be 2.5 horizontally and 5 up

    float AimAccuracy = 2;          // Maximum offset in degrees
    float AimRecoil = 2;            // Maximum offset in degrees

    public void Equiped() {
        _Options = GetNode<Options>( "/root/Options" );
        _Reference = GetNode<Reference>("/root/Reference");
        _normalZoom = _Reference.Camera.Fov;
    }

    public void KeyPress( Key key ) {
        
    }

    public void KeyRelease( Key key ) {
        
    }

    Vector3 Accuracy() {
        Random Random = new Random( DateTime.Now.Millisecond );
        if( isZoomed ) {
            float xAccuracy = ( ( Random.NextSingle() * 2 ) - 1 ) * AimAccuracy / 2;
            float yAccuracy = ( ( Random.NextSingle() * 2 ) - 1 ) * AimAccuracy / 2;
            return new Vector3( xAccuracy, yAccuracy, 0 );
        } else {
            float xAccuracy = ( ( Random.NextSingle() * 2 ) - 1 ) * HipAccuracy / 2;
            float yAccuracy = ( ( Random.NextSingle() * 2 ) - 1 ) * HipAccuracy / 2;
            return new Vector3( xAccuracy, yAccuracy, 0 );
        }
    }

    void Recoil() {
        Random Random = new Random( DateTime.Now.Millisecond );
        Vector2 recoil;
        if ( isZoomed ) {
            float xRecoil = ( ( Random.NextSingle() * 2 ) - 1 ) * AimRecoil / 2;
            float yRecoil = Random.NextSingle() * AimRecoil;
            recoil = new Vector2( xRecoil, yRecoil );
        } else {
            float xRecoil = ( ( Random.NextSingle() * 2 ) - 1 ) * HipRecoil / 2;
            float yRecoil = Random.NextSingle() * HipRecoil;
            recoil = new Vector2( xRecoil, yRecoil );
        }
        _Reference.Camera.RotateX( 1 );      // IE Up and Down
        _Reference.Humanoid.RotateX( 1 );    // IE Left and Right
    }

    public void LeftMouseDown() {
        Vector3 LookVector = -_Reference.Camera.GlobalBasis.Z;
        _Reference.GameHandler.Shoot(ToolID, LookVector, 200);
        //Recoil();
    }

    public void LeftMouseUp() {
        
    }

    public void RightMouseDown() {
        isZoomed = true;
        _Reference.Camera.Fov = ZoomFOV;
    }

    public void RightMouseUp() {
        isZoomed = false;
        _Reference.Camera.Fov = _normalZoom;
    }

    public void UnEquipped() {
        
    }
}