/// <summary>
/// Detects if tank is intersecting a impassible tile
/// </summary>
/// <param name="tankObject">Clients Tank</param>
/// <returns>Collision</returns>
private bool DetectCollision(PlayerTank tankObject)
{
// The 3 below this comment is an offset to make sure we only check for collisions with tiles
// adjacent to us. Checks are done to a range of 3 tiles.
int numTilesX = (viewportRect.X / Constants.TILE_SIZE) + 3;
int numTilesY = (viewportRect.Y / Constants.TILE_SIZE) + 3;
int minimumX = (int)(tankObject.Position.X / Constants.TILE_SIZE) - numTilesX;
int minimumY = (int)(-tankObject.Position.Y / Constants.TILE_SIZE) - numTilesY;
int maximumX = (int)(tankObject.Position.X / Constants.TILE_SIZE) + numTilesX;
int maximumY = (int)(-tankObject.Position.Y / Constants.TILE_SIZE) + numTilesY;
for (int y = minimumY; y < map.Height && y <= maximumY; y++)
{
if (y < 0)
{
continue;
}
for (int x = minimumX; x < map.Width && x <= maximumX; x++)
{
if (x < 0)
{
continue;
}
Options.KeyBindings keys = ServiceManager.Game.Options.KeySettings;
DrawableTile tile = visibleTiles[y * map.Width + x];
if (tankObject.Name == PlayerManager.LocalPlayerName)
{
if (!tile.Passable && (
(Keyboard.GetState().IsKeyDown(keys.Forward) &&
tankObject.FrontSphere.Intersects(tile.BoundingBox)) ||
(Keyboard.GetState().IsKeyDown(keys.Backward) &&
tankObject.BackSphere.Intersects(tile.BoundingBox))))
{
return(true);
}
}
else
{
if (!tile.Passable &&
((tankObject.FrontSphere.Intersects(tile.BoundingBox) &&
tankObject.DirectionMovement == VTankObject.Direction.FORWARD) ||
(tankObject.BackSphere.Intersects(tile.BoundingBox) &&
tankObject.DirectionMovement == VTankObject.Direction.REVERSE)))
{
return(true);
}
}
}
}
return(false);
}
/// <summary>
/// Checks for key presses from the user
/// </summary>
private void CheckInput()
{
// Do not process input if not active.
if (!ServiceManager.Game.IsActive)
{
// If the tank is moving/rotating, stop it.
ChangeMovement(VTankObject.Direction.NONE);
ChangeRotation(VTankObject.Direction.NONE);
return;
}
Options.KeyBindings keys = ServiceManager.Game.Options.KeySettings;
bool localClientCollision = PerformCollisionChecks();
if (KeyPressHelper.IsPressed(keys.Camera))
{
if (input.Visible == false)
{
if (renderer.ActiveScene.CurrentCamera == renderer.ActiveScene.AccessCamera(ChaseCamera))
{
renderer.ActiveScene.CurrentCamera = renderer.ActiveScene.AccessCamera(OverheadCamera);
}
else if (renderer.ActiveScene.CurrentCamera == renderer.ActiveScene.AccessCamera(OverheadCamera))
{
renderer.ActiveScene.CurrentCamera = renderer.ActiveScene.AccessCamera(ChaseCamera);
}
}
}
if (!input.Visible)
{
if (localClientCollision && !stuck)
{
ChangeMovement(VTankObject.Direction.NONE);
previousCollision = true;
}
else
{
if (Keyboard.GetState().IsKeyDown(keys.Forward))
{
ChangeMovement(VTankObject.Direction.FORWARD);
}
else if (Keyboard.GetState().IsKeyDown(keys.Backward))
{
ChangeMovement(VTankObject.Direction.REVERSE);
}
else
{
ChangeMovement(VTankObject.Direction.NONE);
}
if (previousCollision)
{
previousCollision = false;
Resync();
}
}
if (Keyboard.GetState().IsKeyDown(keys.RotateRight))
{
ChangeRotation(VTankObject.Direction.RIGHT);
}
else if (Keyboard.GetState().IsKeyDown(keys.RotateLeft))
{
ChangeRotation(VTankObject.Direction.LEFT);
}
else
{
ChangeRotation(VTankObject.Direction.NONE);
}
if (KeyPressHelper.IsPressed(keys.Minimap))
{
miniMap.Enabled = !miniMap.Enabled;
}
if (Keyboard.GetState().IsKeyDown(keys.Score))
{
Scores.Enabled = true;
}
else
{
Scores.Enabled = false;
}
if (KeyPressHelper.IsPressed(Keys.F1))
{
helpOverlay.Enabled = !helpOverlay.Enabled;
}
}
}