/**
**********************************************************************************************
**********************************************************************************************
**/
public void addRocket(Rocket rocket)
{
try
{
if (firstRocket == null)
{
firstRocket = rocket;
lastRocket = rocket;
}
else if (firstRocket == lastRocket)
{
firstRocket.setNextRocket(rocket);
lastRocket = rocket;
}
else
{
lastRocket.setNextRocket(rocket);
lastRocket = rocket;
}
}
catch (Exception e)
{
}
}
private void Init()
{
//Resize the Image Control
int w = (int)canvas1.ActualWidth + 2;
int h = (int)canvas1.ActualHeight + 2;
Image1.Width = w;
Image1.Height = h;
Image1.Stretch = Stretch.Fill;
//Make a writeable bitmap the size of the Image control
Writebitmap = new WriteableBitmap(w + 1, h + 1, 96, 96, PixelFormats.Bgra32, null);
Stride = (int)(Writebitmap.PixelWidth * Writebitmap.Format.BitsPerPixel / 8);
PixelData = new byte[Stride * Writebitmap.PixelHeight];
myFireworks = new Rocket[RocketCount];
my_Particles = new List <Particle>();
gravity = new Vector(0, 0.02);
for (int I = 0; I < RocketCount; I++)
{
myFireworks[I] = new Rocket();
}
Rendering();
}
private void UpdateTrail(Rocket rocket)
{
rocket.Trail.ForEach(p => {
p.Age += Timer.DeltaTimeMilliseconds;
});
rocket.Trail.RemoveAll(p => p.IsDead);
rocket.TrailTimeSinceLastEmit += Timer.DeltaTimeMilliseconds;
if (rocket.HasFuel && rocket.TrailTimeSinceLastEmit >= rocket.TrailEmitTime)
{
rocket.TrailTimeSinceLastEmit = 0;
rocket.Trail.Add(new Particle
{
Position = rocket.Position,
TotalLifetime = 150,
Mass = 1f,
R = 255,
G = 165,
B = 74
});
}
}
/**
**********************************************************************************************
**********************************************************************************************
**/
public void addRandomRocket()
{
try
{
int width = _canvas.Width;
int height = _canvas.Height;
int widthDivision = 100;
int widthInner = width - (widthDivision * 2);
int height4 = (int)(height / 4);
double angle = (_rng.NextDouble() * 30.0d) + 75.0d; ;
double speed = (_rng.NextDouble() * 45.0) + (double)height4;
double explode = (_rng.NextDouble() * 2.0) + 1.5d;
int xPos = (int)(widthDivision + ((double)_rng.NextDouble() * widthInner));
int yPos = height;
Point position = new Point(xPos, yPos);
Rocket rocket = new Rocket(_rng, angle, speed);
rocket.setExplodeTime(explode);
rocket.setPosition(position);
//double sparkLifespan = 1.5;
//rocket.setSparkLifespan(sparkLifespan);
//rocket.setColor(Color.FromArgb(213, 141, 27));
rocket.setColor(Color.WhiteSmoke);
addRocket(rocket);
}
catch (Exception e)
{
}
}
private bool IntersectsWithEarth(Rocket rocket)
{
return((rocket.Position - _game.Earth.Position).Length() <= _game.Earth.Radius);
}
private void UpdateAge(Rocket rocket)
{
rocket.Age += Timer.DeltaTimeMilliseconds;
}
private void UseFuel(Rocket rocket)
{
rocket.Fuel = Math.Max(0f, rocket.Fuel - (200 * Timer.DeltaTimeSeconds)); // fuel lasts 1 sec
}
public void setNextRocket(Rocket nextRocket)
{
this.nextRocket = nextRocket;
}
/**
**********************************************************************************************
**********************************************************************************************
**/
public void checkExplode(RocketQueue rocketQueue)
{
try
{
if (lastRocket || exploded || dead)
{
return;
}
if (time >= explodeTime)
{
int[] numSparkChoice = new int[] { 5, 8, 10 };
int numSparks = numSparkChoice[_rng.Next(0, 2)];
//int numSparks = 20;
//System.out.println(numSparks);
double rotation = (360 / numSparks);
double sparkAngle = 5;
double sparkSpeed = _rng.NextDouble() * 20 + 10 ;
double lifespan = 2.0;
double sparkLifespan = 1.5;
int sparkSize = 2;
Color randomColor = makeRandomColor();
for (int i = 0; i < numSparks; i++)
{
Rocket rocket = new Rocket(_rng, sparkAngle, sparkSpeed);
rocket.setPosition(calculatePosition());
rocket.setSparkLifespan(sparkLifespan);
rocket.setLifespan(lifespan);
rocket.setLastRocket(true);
rocket.setColor(randomColor);
rocket.setSize(sparkSize);
rocketQueue.addRocket(rocket);
sparkAngle += rotation;
}
exploded = true;
dead = true;
}
}
catch (Exception e)
{
}
}
/**
**********************************************************************************************
**********************************************************************************************
**/
public void makeSparks(SparkQueue sparkQueue)
{
try
{
if (firstRocket == null)
{
return;
}
else if (firstRocket.getNextRocket() == null && firstRocket.isDead())
{
firstRocket = null;
lastRocket = null;
return;
}
Rocket rocket = firstRocket;
bool hasMoreRockets = true;
while (hasMoreRockets)
{
// if the rocket is ready to explode, add the new rockets
// to the end of the queue for painting
rocket.checkExplode(this);
rocket.makeSparks(sparkQueue);
// loop until we find the next alive rocket, clipping out the finished rockets
Rocket nextRocket = rocket.getNextRocket();
bool finished = false;
while (!finished)
{
if (nextRocket == null)
{
// the end of the queue
rocket.setNextRocket(null);
lastRocket = rocket;
hasMoreRockets = false;
finished = true;
}
else if (nextRocket.isDead())
{
nextRocket = nextRocket.getNextRocket();
}
else
{
rocket.setNextRocket(nextRocket);
rocket = nextRocket;
finished = true;
}
}
// This must be done at the end of the loop incase the last
// rocket explodes and adds more rockets to the queue
if (rocket == lastRocket)
{
//hasMoreRockets = false;
}
}
}
catch (Exception e)
{
}
}
public void Clear()
{
firstRocket = lastRocket = null;
}