/// <summary>
/// Advance the game in time
/// </summary>
public void Advance()
{
// How much time change has there been?
long time = stopwatch.ElapsedMilliseconds;
float delta = (time - lastTime) * 0.001f; // Delta time in milliseconds
lastTime = time;
while (delta > 0)
{
float step = delta;
if (step > 0.05f)
{
step = 0.05f;
}
float maxspeed = Math.Max(Math.Abs(player.V.X), Math.Abs(player.V.Y));
if (maxspeed > 0)
{
step = (float)Math.Min(step, 0.05 / maxspeed);
}
player.PostStood(stood); // post stood condition variable to GameSprite object
player.Advance(step);
foreach (Polygon p in world)
{
p.Advance(step);
}
foreach (Polygon p in world)
{
if (collision.Test(player, p))
{
float depth = collision.P1inP2 ?
collision.Depth : -collision.Depth;
player.P = player.P + collision.N * depth;
Vector2 v = player.V;
if (collision.N.X != 0)
{
v.X = 0;
}
if (collision.N.Y != 0)
{
v.Y = 0;
stood = true;
}
//
if (p.ismapped)
{
score.AddFlyingScore(-1, PlayerFeet().X, PlayerFeet().Y, lastTime);
}
// IF PLAYER is not on GROUND and touches a MONSTER!!!
if (p.isMonster && player.V.Y != 0)
{
v.Y = 5.5f;
stood = false;
v.X = -10.5f;
player.A = new Vector2(0, -6.8f);
if (p.points_to_give > 0)
{
if (p.is2)
{
v.X = -125.5f;
score.AddFlyingScore(2, PlayerFeet().X, PlayerFeet().Y, lastTime);
p.points_to_give += 1; // this will always give points
lives.lives_number -= 1;
if (lives.lives_number < 1)
{
lives.lives_number = 0;
game_over.gameOver = true;
}
}
if (p.is748)
{
score.AddFlyingScore(748, PlayerFeet().X, PlayerFeet().Y, lastTime);
v.X = -25.5f;
lives.lives_number -= 1;
if (lives.lives_number < 1)
{
lives.lives_number = 0;
game_over.gameOver = true;
}
}
else if (!p.isBig)
{
score.AddFlyingScore(100, PlayerFeet().X, PlayerFeet().Y, lastTime);
}
else
{
score.AddFlyingScore(500, PlayerFeet().X, PlayerFeet().Y, lastTime);
}
p.points_to_give -= 1;
audio.PNT();
}
}
else if (p.isMonster && player.V.Y != 0)
{
v.X = -25.5f;
lives.lives_number -= 1;
if (lives.lives_number < 1)
{
lives.lives_number = 0;
game_over.gameOver = true;
}
audio.JMP();
}
//if hit monster's right side... you lose/ game over
else if (p.isMonster && player.V.X <= 0)
{
lives.lives_number -= 3;
if (lives.lives_number < 1)
{
lives.lives_number = 0;
game_over.gameOver = true;
}
}
player.V = v;
player.Advance(0);
}
}
delta -= step;
}
score.Advance(time);
if (!game_over.gameOver)
{
audio.BGD();
}
else
{
audio.BGD(true); audio.OVR();
}
}