My first animation - Using SDL.NET C#
- by Mark
Hi all! I'm trying to animate a player object in my 2D grid when the user clicks somewhere in the screen.
I got the following 4 variables:
oX (Current player position X)
oY (Current player position Y)
dX (Destination X)
dY (Destination Y)
How can I make sure the player moves in a straight line to the new XY coordinates. The way I'm doing it now is really awfull and causes the player to first move along x axis, and finally in y axis.
Can someone give me some guidance with the involved math cause I'm really not sure on how to accomplish this.
Thank you for your time.
Kind regards,
Mark
Update: It's working now but whats the right way to check if the current positions are equal to the target position?
private static void MovePlayer(double x2, double y2, int duration)
{
double hX = x2 - m_PlayerPosition.X;
double hY = y2 - m_PlayerPosition.Y;
double Length = Math.Sqrt(Math.Pow(hX, 2) + Math.Pow(hY, 2));
hX = hX / Length;
hY = hY / Length;
while (m_PlayerPosition.X != Convert.ToInt32(x2) || m_PlayerPosition.Y != Convert.ToInt32(y2))
{
m_PlayerPosition.X += Convert.ToInt32(hX * 1);
m_PlayerPosition.Y += Convert.ToInt32(hY * 1);
UpdatePlayerLocation();
}
}
