/// <summary>
/// This method is invoked when the DrawingPanel needs to be re-drawn
/// </summary>
protected override void OnPaint(PaintEventArgs e)
{
//Makes sure world is null, since it is null while loading game
if (theWorld != null)
{
//Locks world since it accesses info from it
lock (theWorld)
{
//Get player's tank to center view
Tank player;
if (theWorld.GetTank(PlayerID, out player))
{
double playerX = player.location.GetX();
double playerY = player.location.GetY();
double ratio = (double)ViewSize / (double)theWorld.GetSize();
int halfSizeScaled = (int)(theWorld.GetSize() / 2.0 * ratio);
double inverseTranslateX = -WorldSpaceToImageSpace(theWorld.GetSize(), playerX) + halfSizeScaled;
double inverseTranslateY = -WorldSpaceToImageSpace(theWorld.GetSize(), playerY) + halfSizeScaled;
e.Graphics.TranslateTransform((float)inverseTranslateX, (float)inverseTranslateY);
}
//Draw background
e.Graphics.DrawImage(Background, new Rectangle(0, 0, theWorld.GetSize(), theWorld.GetSize()));
// Draw the tanks
foreach (Tank tank in theWorld.GetTanks())
{
//Draw tank, turret, and info if tank is alive and ingame
if (!tank.died && !tankTimer.ContainsKey(tank) && tank.hitPoints > 0)
{
DrawObjectWithTransform(e, tank, theWorld.GetSize(), tank.location.GetX(), tank.location.GetY(), tank.orientation.ToAngle(), TankDrawer);
DrawObjectWithTransform(e, tank, theWorld.GetSize(), tank.location.GetX(), tank.location.GetY(), tank.aiming.ToAngle(), TurretDrawer);
DrawObjectWithTransform(e, tank, theWorld.GetSize(), tank.location.GetX(), tank.location.GetY(), 0, InfoDrawer);
}
//Otherwise, add tank to tank timer, increment tank timer, or remove tank from tank timer if it is alive
else
{
//If tank is a live again, remove from tank timer
if (tank.hitPoints > 0)
{
tankTimer.Remove(tank);
break;
}
//If tank is already in tank timer, decrement tank timer or remove tank from timer
if (tankTimer.ContainsKey(tank))
{
if (tankTimer[tank] < 200)
{
tankTimer[tank]++;
}
else
{
tankTimer.Remove(tank);
}
}
//Add tank to timer if not in timer yet
else
{
tankTimer.Add(tank, 0);
}
}
}
// Draw the walls
foreach (Wall w in theWorld.GetWalls())
{
Vector2D location = GetWallLocation(w);
DrawObjectWithTransform(e, w, theWorld.GetSize(), location.GetX(), location.GetY(), 0, WallDrawer);
}
//Draw beams if existed for less than 60 frames
List <Beam> beams = new List <Beam>(beamsTimer.Keys);
foreach (Beam b in beams)
{
if (beamsTimer[b] > 60)
{
beamsTimer.Remove(b);
}
//Increments beamsTimer and draws beams
else
{
beamsTimer[b]++;
DrawObjectWithTransform(e, b, theWorld.GetSize(), b.origin.GetX(), b.origin.GetY(), b.direction.ToAngle(), BeamDrawer);;
}
}
// Draw the powerups if not dead
foreach (Powerup pow in theWorld.GetPowerups())
{
if (!pow.died)
{
DrawObjectWithTransform(e, pow, theWorld.GetSize(), pow.location.GetX(), pow.location.GetY(), 0, PowerupDrawer);
}
}
//Draw projectiles if not dead
foreach (Projectile p in theWorld.GetProjectiles())
{
if (!p.died)
{
DrawObjectWithTransform(e, p, theWorld.GetSize(), p.location.GetX(), p.location.GetY(), p.orientation.ToAngle(), ProjectileDrawer);
}
}
//Draw tank explosions with tanks in tankTimer
List <Tank> tanks = new List <Tank>(tankTimer.Keys);
foreach (Tank t in tanks)
{
DrawObjectWithTransform(e, t, theWorld.GetSize(), t.location.GetX(), t.location.GetY(), 0, ExplosionDrawer);
}
}
}
// Do anything that Panel (from which we inherit) needs to do
base.OnPaint(e);
}
/// <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();
}
/// <summary>
/// This method is invoked when the DrawingPanel needs to be re-drawn
/// </summary>
protected override void OnPaint(PaintEventArgs e)
{
//Gets the world based on the world of the controller
world = controller.GetWorld();
//Gets the playerNum based on the controller's player number
playerNum = controller.GetPlayerNum();
//Only attempts to draw if the world contains the tanks
if (world.GetTanks().Count > 0)
{
//Locks the thread with the world as the key to draw everything in one thread to avoid changes while drawing
lock (world)
{
//Locks the player's view in the center based on ther user's controlled tank, if the tank is not dead
if (world.GetTanks().TryGetValue(playerNum, out Tank tank) && !tank.GetDead())
{
//Sets the player's X and Y coordinate
playerX = tank.GetLocation().GetX();
playerY = tank.GetLocation().GetY();
//Centers the player's view
double ratio = (double)viewSize / (double)world.Size;
int halfSizeScaled = (int)(world.Size / 2.0 * ratio);
double inverseTranslateX = -WorldSpaceToImageSpace(world.Size, playerX) + halfSizeScaled;
double inverseTranslateY = -WorldSpaceToImageSpace(world.Size, playerY) + halfSizeScaled;
e.Graphics.TranslateTransform((float)inverseTranslateX, (float)inverseTranslateY);
}
else
{
//If the tank is not dead, then it sets the location as the last place of death of the tank and center's the player's view
double ratio = (double)viewSize / (double)world.Size;
int halfSizeScaled = (int)(world.Size / 2.0 * ratio);
double inverseTranslateX = -WorldSpaceToImageSpace(world.Size, playerX) + halfSizeScaled;
double inverseTranslateY = -WorldSpaceToImageSpace(world.Size, playerY) + halfSizeScaled;
e.Graphics.TranslateTransform((float)inverseTranslateX, (float)inverseTranslateY);
}
//Doesn't draw anything if the world size is less than equal to 0
if (world.Size <= 0)
{
return;
}
//Draws the background
DrawObjectWithTransform(e, null, world.Size, 0, 0, 0, BackgroundDrawer);
//Draws all the walls in the world
foreach (Wall w in world.GetWalls().Values.ToList())
{
for (double i = w.GetStartingPoint().GetX(); i <= w.GetEndingPoint().GetX(); i = i + 50)
{
for (double j = w.GetStartingPoint().GetY(); j <= w.GetEndingPoint().GetY(); j = j + 50)
{
//Draws all the walls in the condition that the starting point is smaller than ending points of the walls
DrawObjectWithTransform(e, w, world.Size, i, j, 0, WallDrawer);
}
}
for (double i = w.GetEndingPoint().GetX(); i <= w.GetStartingPoint().GetX(); i = i + 50)
{
for (double j = w.GetEndingPoint().GetY(); j <= w.GetStartingPoint().GetY(); j = j + 50)
{
//Draws all the walls in the condition that the starting point is greater than ending points of the walls
DrawObjectWithTransform(e, w, world.Size, i, j, 0, WallDrawer);
}
}
}
//Draws all the powerups
foreach (Powerups p in world.GetPowerups().Values)
{
//Draws the outside and inside circle for the powerups
DrawObjectWithTransform(e, p, world.Size, p.GetLocation().GetX(), p.GetLocation().GetY(), 0, PowerupDrawer);
DrawObjectWithTransform(e, p, world.Size, p.GetLocation().GetX(), p.GetLocation().GetY(), 0, PowerupDrawerInsideCircle);
}
//Draws all the tanks in the world
foreach (Tank t in world.GetTanks().Values)
{
//Draws the tank
DrawObjectWithTransform(e, t, world.Size, t.GetLocation().GetX(), t.GetLocation().GetY(), t.GetOrientation().ToAngle(), TankDrawer);
//Draws the turret
DrawObjectWithTransform(e, t, world.Size, t.GetLocation().GetX(), t.GetLocation().GetY(), t.GetAiming().ToAngle(), TurretDrawer);
//Draws the name
DrawObjectWithTransform(e, t, world.Size, t.GetLocation().GetX(), t.GetLocation().GetY() + 60, 0, NameDrawer);
//Draws the health
DrawObjectWithTransform(e, t, world.Size, t.GetLocation().GetX(), t.GetLocation().GetY() - 40, 0, HealthDrawer);
}
//Draws all the projectiles in the world
foreach (Projectile p in world.GetProjectile().Values.ToList())
{
//Draws the projectile
DrawObjectWithTransform(e, p, world.Size, p.GetLocation().GetX(), p.GetLocation().GetY(), p.GetOrientation().ToAngle(), ProjectileDrawer);
}
//Draws all the beams in the world
foreach (Beams b in world.GetBeams().Values.ToList())
{
//Draws the beams
DrawObjectWithTransform(e, b, world.Size, b.GetOrigin().GetX(), b.GetOrigin().GetY(), b.GetDirection().ToAngle(), BeamDrawer);
//Removes the beams after 20 iterations
beamFrameCount++;
if (beamFrameCount == 20)
{
world.GetBeams().Remove(b.GetBeamID());
beamFrameCount = 0;
}
}
}
}
//Calls the base
base.OnPaint(e);
}
/// <summary>
/// Updates the world based off of commands and game logic.
/// </summary>
private void updateWorld()
{
lock (world)
{
//Powerup logic
if (powerUpTimer == 0 && new List <Powerup>(world.GetPowerups()).Count < world.maxPowers)
{
Random r = new Random();
Vector2D RandLoc = new Vector2D(r.Next(-world.GetSize() / 2 + 16, world.GetSize() / 2 - 16), r.Next(-world.GetSize() / 2 + 16, world.GetSize() / 2 - 16));
while (CheckPowerupWallCollision(RandLoc))
{
RandLoc = new Vector2D(r.Next(-world.GetSize() / 2 + 16, world.GetSize() / 2 - 16), r.Next(-world.GetSize() / 2 + 16, world.GetSize() / 2 - 16));
}
world.UpdatePowerup(powerupCount++, RandLoc, false);
resetPowerupTimer();
}
else if (powerUpTimer != 0)
{
powerUpTimer--;
}
//Tank logic
foreach (Tank t in new List <Tank>(tanksFired.Keys))
{
int temp = tanksFired[t];
if (temp > 1)
{
tanksFired[t]--;
}
else
{
tanksFired.Remove(t);
}
}
foreach (Tank t in new List <Tank>(tanksRespawning.Keys))
{
if (t.died)
{
world.UpdateTank(t.ID, t.location, t.orientation, t.aiming, t.name, t.hitPoints, t.score, false, t.disconnected);
}
int temp = tanksRespawning[t];
if (temp > 1)
{
tanksRespawning[t]--;
}
else
{
tanksRespawning.Remove(t);
Random r = new Random();
Vector2D RandLoc = new Vector2D(r.Next(-world.GetSize() / 2 + 16, world.GetSize() / 2 - 16), r.Next(-world.GetSize() / 2 + 16, world.GetSize() / 2 - 16));
while (CheckTankWallCollision(RandLoc))
{
RandLoc = new Vector2D(r.Next(-world.GetSize() / 2 + 16, world.GetSize() / 2 - 16), r.Next(-world.GetSize() / 2 + 16, world.GetSize() / 2 - 16));
}
t.beams = 0;
world.UpdateTank(t.ID, RandLoc, new Vector2D(0, 1), new Vector2D(0, 1), t.name, 3, t.score, t.died, t.disconnected);
}
}
foreach (Tank t in new List <Tank>(world.GetTanks()))
{
if (t.disconnected == true)
{
world.UpdateTank(t.ID, new Vector2D(0, 0), new Vector2D(0, 1), new Vector2D(0, 1), t.name, t.hitPoints, 0, t.died, t.disconnected);
}
}
//Disconnect logic
foreach (SocketState s in new List <SocketState>(users.Keys))
{
if (s.ErrorOccured)
{
if (world.GetTank(users[s], out Tank t))
{
t.setDisconnected();
}
}
}
//Control command logic
foreach (int i in new List <int>(controls.Keys))
{
if (world.GetTank(i, out Tank t))
{
if (t.hitPoints != 0 && !tanksRespawning.ContainsKey(t))
{
ControlCommand c = controls[i];
Vector2D orientation = new Vector2D(1, 0);
switch (c.moving)
{
case "none":
orientation = t.orientation;
t.velocity = new Vector2D(0, 0);
break;
case "up":
orientation = new Vector2D(0, -1);
t.velocity = new Vector2D(0, -world.tankSpeed);
break;
case "down":
orientation = new Vector2D(0, 1);
t.velocity = new Vector2D(0, world.tankSpeed);
break;
case "left":
orientation = new Vector2D(-1, 0);
t.velocity = new Vector2D(-world.tankSpeed, 0);
break;
case "right":
orientation = new Vector2D(1, 0);
t.velocity = new Vector2D(world.tankSpeed, 0);
break;
}
Vector2D loc = t.location + t.velocity;
if (CheckTankWallCollision(loc))
{
loc = t.location;
}
loc = TankWraparound(loc);
orientation.Normalize();
c.direction.Normalize();
world.UpdateTank(t.ID, loc, orientation, c.direction, t.name, t.hitPoints, t.score, t.died, t.disconnected);
if (c.fire == "main" && !tanksFired.ContainsKey(t))
{
world.UpdateProjectile(projCount++, t.location, c.direction, t.ID, false);
tanksFired.Add(t, world.projectileDelay);
}
else if (c.fire == "alt" && t.beams > 0)
{
world.AddBeam(beamCount++, t.location, c.direction, t.ID);
t.beams--;
}
controls.Remove(i);
}
}
}
//beam logic
beams = new List <Beam>(world.GetBeams());
foreach (Beam b in new List <Beam>(world.GetBeams()))
{
List <Tank> temp = CheckBeamTankCollision(b);
foreach (Tank hitTank in temp)
{
if (hitTank.ID != b.owner && !tanksRespawning.ContainsKey(hitTank))
{
if (world.GetTank(b.owner, out Tank t))
{
world.UpdateTank(hitTank.ID, hitTank.location, hitTank.orientation, hitTank.aiming, hitTank.name, 0, hitTank.score, true, t.disconnected);
tanksRespawning.Add(hitTank, world.respawnTime);
t.kill();
}
}
}
world.RemoveBeam(b.ID);
}
//projectile logic
foreach (Projectile p in new List <Projectile>(world.GetProjectiles()))
{
Vector2D loc = p.location + p.orientation * world.projectileSpeed;
world.UpdateProjectile(p.ID, loc, p.orientation, p.owner, p.died);
if (!p.died)
{
if (CheckProjectileWallCollision(loc))
{
p.setDied();
}
else if (CheckProjectileTankCollision(loc, out Tank hitTank))
{
if (hitTank.ID != p.owner && !tanksRespawning.ContainsKey(hitTank))
{
p.setDied();
hitTank.hit();
if (world.GetTank(p.owner, out Tank t) && hitTank.hitPoints == 0)
{
world.UpdateTank(hitTank.ID, hitTank.location, hitTank.orientation, hitTank.aiming, hitTank.name, hitTank.hitPoints, hitTank.score, true, t.disconnected);
tanksRespawning.Add(hitTank, world.respawnTime);
t.kill();
}
}
}
}
}
//powerup logic
foreach (Powerup p in new List <Powerup>(world.GetPowerups()))
{
world.UpdatePowerup(p.ID, p.location, p.died);
if (!p.died)
{
if (CheckProjectileTankCollision(p.location, out Tank hitTank))
{
if (!tanksRespawning.ContainsKey(hitTank))
{
p.setDied();
hitTank.beams++;
}
}
}
}
//create lists for send (beams is done before these)
tanks = new List <Tank>(world.GetTanks());
projs = new List <Projectile>(world.GetProjectiles());
powerups = new List <Powerup>(world.GetPowerups());
}
}