/// <summary>
/// Acts as a drawing delegate for DrawObjectWithTransform
/// After performing the necessary transformation (translate/rotate)
/// DrawObjectWithTransform will invoke this method
/// </summary>
/// <param name="o">The object to draw</param>
/// <param name="e">The PaintEventArgs to access the graphics</param>
private void HealthDrawer(object o, PaintEventArgs e)
{
//Converts the object to a Tank
Tank t = o as Tank;
//Sets the fullHealth size
int fullHealthWidth = 60;
//Sets the height of the bar
int height = 10;
//Sets the once hit health width
int onceHitHealthWidth = 40;
//Sets the twice hit health width
int twiceHitHealthWidth = 15;
//Doesn't smoothen the graphics
e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.None;
using (System.Drawing.SolidBrush redBrush = new System.Drawing.SolidBrush(System.Drawing.Color.Red))
using (System.Drawing.SolidBrush greenBrush = new System.Drawing.SolidBrush(System.Drawing.Color.Green))
using (System.Drawing.SolidBrush yellowBrush = new System.Drawing.SolidBrush(System.Drawing.Color.Yellow))
using (System.Drawing.SolidBrush transparentBrush = new System.Drawing.SolidBrush(System.Drawing.Color.Transparent))
{
// Rectangles are drawn starting from the top-left corner.
// So if we want the rectangle centered on the player's location, we have to offset it
// by half its size to the left (-width/2) and up (-height/2)
Rectangle fullHealth = new Rectangle(-(fullHealthWidth / 2), -(height / 2), fullHealthWidth, height);
Rectangle partialHealth = new Rectangle(-(onceHitHealthWidth / 2), -(height / 2), onceHitHealthWidth, height);
Rectangle almostDeadHealth = new Rectangle(-(twiceHitHealthWidth / 2), -(height / 2), twiceHitHealthWidth, height);
//If hit points is 1, then it draws a smaller red rectangle
if (t.GetHitPoints() == 1)
{
e.Graphics.FillRectangle(redBrush, almostDeadHealth);
}
//If hit points is 2, then it draws a slightly bigger yellow rectangle
else if (t.GetHitPoints() == 2)
{
e.Graphics.FillRectangle(yellowBrush, partialHealth);
}
//If hit points is 3, then it draws a full green rectangle
else if (t.GetHitPoints() == 3)
{
e.Graphics.FillRectangle(greenBrush, fullHealth);
}
//If hit points is 0, then it draws a transparent rectangle, i.e, no health
else
{
e.Graphics.FillRectangle(transparentBrush, fullHealth);
}
}
}
/// <summary>
/// Process any buffered messages separated by '\n'
/// Then inform the view
/// </summary>
/// <param name="state"></param>
private void ReceiveWorld(SocketState state)
{
//Gets the data from the state and splits it by a new line
string totalData = state.GetData();
string[] parts = Regex.Split(totalData, @"(?<=[\n])");
// Loop until we have processed all messages.
// We may have received more than one.
//Gets the player number, which should only be once
int playerNumber = 0;
havePlayerNum = int.TryParse(parts[0], out playerNumber);
parts[0] = "";
if (playerNumber != 0)
{
playerNum = playerNumber;
}
//Gets the dimensions of the world that should only happen once
int dim = 0;
haveDimension = int.TryParse(parts[1], out dim);
parts[1] = "";
if (dim != 0)
{
worldDimension = dim;
world = new World(worldDimension);
}
//Iterates through all the data given by the server
foreach (string p in parts)
{
// Ignore empty strings added by the regex splitter
if (p.Length == 0)
{
continue;
}
// The regex splitter will include the last string even if it doesn't end with a '\n',
// So we need to ignore it if this happens.
if (p[p.Length - 1] != '\n')
{
break;
}
//Locks with a world so that we process information in a single thread
lock (world)
{
//Parses the object with the JSON
JObject jObject = JObject.Parse(p);
//Converts the JSON object to a token based on the name of the string
JToken projToken = jObject["proj"];
JToken beamToken = jObject["beam"];
JToken tankToken = jObject["tank"];
JToken wallToken = jObject["wall"];
JToken powerToken = jObject["power"];
//If the projToken is not null, i.e. if the JSON string passed was a projectile, then it goes in this condition
if (projToken != null)
{
//Deserializes the string and converts it to a projectile
Projectile proj = JsonConvert.DeserializeObject <Projectile>(p);
//Adds the projectile to the world
world.SetProjectile(proj.GetID(), proj);
//If projectile is dead, removes the projectile from the world
if (proj.GetDead() == true)
{
world.GetProjectile().Remove(proj.GetID());
}
}
//If the beamToken is not null, i.e. if the JSON string passed was a beam, then it goes in this condition
if (beamToken != null)
{
//Deserializes the string and converts it to a beam
Beams b = JsonConvert.DeserializeObject <Beams>(p);
//Adds the beam in the world's beam dictionary
world.SetBeams(b.GetBeamID(), b);
}
//If the tankToken is not null, i.e. if the JSON string passed was a tank, then it goes in this condition
if (tankToken != null)
{
//Deserializes the string and converts it to a tank
Tank t = JsonConvert.DeserializeObject <Tank>(p);
//Sets the color of the tank based on the tank's ID
t.SetColor(t.GetID());
//Adds the tank to the world's tank dictionary
world.SetTanks(t.GetID(), t);
//If the hitpoints of the tank are 0, then it remove it from the dictionary
if (t.GetHitPoints() == 0)
{
world.GetTanks().Remove(t.GetID());
}
//If the tank gets disconnected, then it remove it from the dictionary
if (t.GetDisconnected())
{
world.GetTanks().Remove(t.GetID());
}
//If the tank is dead, then it remove it from the dictionary
if (t.GetDead())
{
world.GetTanks().Remove(t.GetID());
}
}
//If the wallToken is not null, i.e. if the JSON string passed was a wall, then it goes in this condition
if (wallToken != null)
{
//Deserializes the string and converts it to a wall
Wall w = JsonConvert.DeserializeObject <Wall>(p);
//Adds the wall to the world's wall dictionary
world.SetWalls(w.GetID(), w);
}
//If the powerToken is not null, i.e. if the JSON string passed was a powerup, then it goes in this condition
if (powerToken != null)
{
//Deserializes the string and converts it to a powerup
Powerups power = JsonConvert.DeserializeObject <Powerups>(p);
//Adds the powerup to the world's powerup dictionary
world.SetPowerups(power.GetID(), power);
//If the powerup is dead, then it removes it from the dictionary
if (power.GetDead())
{
world.GetPowerups().Remove(power.GetID());
}
}
}
// Then remove it from the SocketState's growable buffer
state.RemoveData(0, p.Length);
}
if (UpdateArrived != null)
{
// inform the view to redraw
UpdateArrived();
}
//Inform the server
Process();
}