// Checks for key presses and processes changes accordingly each update cycle. This deals
// with a number of things such as AI calculation updates, player movement, player interaction,
// lamps, door movement and also to detect if the user has pressed escape to show the pause menu.
public override void Update(GameTime gameTime)
{
if (ScreenManager.Instance.SingleKeyPress(Keys.Escape))
{
ScreenManager.Instance.PushTranslucentScreen(new PauseScreen());
}
for (int intPlayerIndex = 0; intPlayerIndex <= 3; intPlayerIndex++)
{
if (player[intPlayerIndex].Dead != true)
{
Keys[] playerKeys = new Keys[4];
playerKeys[0] = InputKeys[intPlayerIndex, 0];
playerKeys[1] = InputKeys[intPlayerIndex, 1];
playerKeys[2] = InputKeys[intPlayerIndex, 2];
playerKeys[3] = InputKeys[intPlayerIndex, 3];
player[intPlayerIndex].Update(gameTime, playerKeys, layerGameGrid, addShadowCopy, shadowCopy, tx2ShadowCopy);
}
}
if (intProgressionTime > 5) // After 5 seconds, spawn shadow copies.
// Updates each initial copy.
{
foreach (ShadowCopy shadowcopy in shadowCopy)
{
if (shadowcopy != null)
{
shadowcopy.Update(gameTime, player, layerGameGrid.Nodes);
}
}
}
// Updates each additional copy if it has been instantiated.
foreach (AddShadowCopy shadowcopy in addShadowCopy)
{
if (shadowcopy != null)
{
shadowcopy.Update(gameTime, player, layerGameGrid);
}
}
// Every 20 seconds after the start of the game, respawn initial shadow copies if they were erased.
if (intProgressionTime == 20 || intProgressionTime == 40 || intProgressionTime == 60 || intProgressionTime == 80)
{
if (shadowCopy.Count(sc => sc == null) > 0) // Checks if the number of null shadow copies is greater than 0.
{
int intRespawnIndex = Array.IndexOf(shadowCopy, null); // Stores the index of a null item in the array to respawn a shadow copy.
shadowCopy[intRespawnIndex] = new ShadowCopy(); // Respawn a shadow copy at its default spawn point.
shadowCopy[intRespawnIndex].Initialize(InitCopyPos(intRespawnIndex, layerGameGrid.Nodes));
shadowCopy[intRespawnIndex].EntityImage = tx2ShadowCopy;
shadowCopy[intRespawnIndex].Animation.AnimationImage = tx2ShadowCopy;
}
}
layerGameGrid.CheckNodes(player, shadowCopy, addShadowCopy);
intTimeSinceFrame += gameTime.ElapsedGameTime.Milliseconds; // Adds the number of milliseconds passed each frame
if (intTimeSinceFrame >= 1000) // until a second has passed.
{
intProgressionTime += 1; // Then a second is added to the progression time and the time since frame is reset.
intTimeSinceFrame = 0;
}
// After 100 seconds, or if all the players have died, end the game.
if (intProgressionTime == 100 || (player[0].Dead && player[1].Dead && player[2].Dead && player[3].Dead))
{
EndGame(player);
}
}
