/// <summary>
/// Method that RESETS the whole Game Logic
/// </summary>
public void ResetGame()
{
// Reset FLAGs
IsCalibrated = false;
GameEnabled = false;
// Reset Ball Position
Field.BallPosition_X_W = 1;
Field.BallPosition_Y_H = 1;
Old_Value_X = 0;
Old_Value_Y = 0;
ball_idx_x = 0;
ball_idx_y = 0;
move_x = 0.0;
move_y = 0.0;
// Trigger Event so ViewModel can actually reset ball Position
BallPositionHasChanged?.Invoke(this, EventArgs.Empty);
}
/// <summary>
/// Method that calculates and sets the new ball position depending on input motion values
/// </summary>
private void SetBallPosition()
{
bool CollisionDetectedX = false;
bool CollisionDetectedY = false;
// Calculate movement of ball
int Diff_X = Old_Value_X + Data.Axis_X;
int Diff_Y = Old_Value_Y + Data.Axis_Y;
// Save new values
Old_Value_X = Data.Axis_X;
Old_Value_Y = Data.Axis_Y;
move_x = Diff_X / 5000.0;
move_x = Math.Round(move_x, 1);
move_x = -move_x;
move_y = Diff_Y / 5000.0;
move_y = Math.Round(move_y, 1);
move_y = -move_y;
// keep the movement in ranges +/-1
if (move_x > 1)
{
move_x = 1;
}
else if (move_x < -1)
{
move_x = -1;
}
if (move_y > 1)
{
move_y = 1;
}
else if (move_y < -1)
{
move_y = -1;
}
// Prevent ball from hitting obstacle (border)
var new_pos_x = Field.BallPosition_X_W + move_x;
var new_pos_y = Field.BallPosition_Y_H + move_y;
ball_idx_x = (int)Math.Round(Field.BallPosition_X_W, 0);
ball_idx_y = (int)Math.Round(Field.BallPosition_Y_H, 0);
// calculate if there was a collsion in x direction
// get movement direction
int dir = 1;
if (move_x < 0)
{
dir = -1;
}
else if (move_x > 0)
{
dir = 1;
}
// Get obstacle next to ball
GameField.GameElements obstacle = Field.PlayField[ball_idx_x + dir, ball_idx_y];
// do collision detection if it is a border
if (obstacle == GameField.GameElements.Border)
{
// Calc Distance
var dist = Math.Abs((new_pos_x) - (ball_idx_x + dir)) + .1;
var radius_obstacle = Dimensions[(int)obstacle].Width / 2;
var radius_ball = Dimensions[Dimensions.Length - 1].Width / 2;
var minimum = radius_ball + radius_obstacle;
// if the distance is smaller than the minimun distance -> a collsision was detected
if (dist < minimum)
{
// set the balls position right next to the obstacle
Field.BallPosition_X_W = ball_idx_x + dir * (0.5 - radius_ball) + .1;
CollisionDetectedX = true;
}
}
// calculate if there was a collsion in y direction
// get movement direction
dir = 1;
if (move_y < 0)
{
dir = -1;
}
else if (move_y > 0)
{
dir = 1;
}
// Get obstacle next to ball
obstacle = Field.PlayField[ball_idx_x, ball_idx_y + dir];
// do collision detection if it is a border
if (obstacle == GameField.GameElements.Border)
{
// Calc Distance
var dist = Math.Abs((new_pos_y) - (ball_idx_y + dir)) + .1;
var radius_obstacle = Dimensions[(int)obstacle].Height / 2;
var radius_ball = Dimensions[Dimensions.Length - 1].Height / 2;
var minimum = radius_ball + radius_obstacle;
// if the distance is smaller than the minimun distance -> a collsision was detected
if (dist < minimum)
{
// set the balls position right next to the obstacle
Field.BallPosition_Y_H = ball_idx_y + dir * (0.5 - radius_ball) + .1;
CollisionDetectedY = true;
}
}
// Move Ball
if (!CollisionDetectedX)
{
Field.BallPosition_X_W += move_x;
}
if (!CollisionDetectedY)
{
Field.BallPosition_Y_H += move_y;
}
// If Ball is EITHER in HOLE or in FINISH --> no need to move it anymore --> Game is OVER
if (IsBallInHole() || IsBallInFinish())
{
return;
}
// Trigger Event --> inform ViewModel that Ball Position has changed
BallPositionHasChanged?.Invoke(this, EventArgs.Empty);
}
