public void InitParticle()
{
Clear();
Random rand = new Random();
rand.Next();
for (int i = 0; i < particleCount; i++)
{
// Sets values to the starting values
Particle tmp = new Particle();
tmp.Id = tm.LoadTexture(imgpath, 0);
tmp.Color = colorStart;
tmp.Rotation = rotationStart;
tmp.Scale = scaleStart;
tmp.Rotation = rotationStart;
tmp.Source = new Rectangle(0, 0, tm.GetTextureWidth(tmp.Id), tm.GetTextureHeight(tmp.Id));
tmp.myColor = new MyColor();
tmp.myColor.A = colorStart.A / 255;
tmp.myColor.R = colorStart.R / 255;
tmp.myColor.G = colorStart.G / 255;
tmp.myColor.B = colorStart.B / 255;
// Finds random values
//double theta = double.Parse(angle.ToString());
//double rot = double.Parse(angleRotation.ToString());
//float dirXMin = -(float)(Math.Sin(rot));
//float dirYMin = -(float)(Math.Cos(rot));
//float dirXMax = -(float)(Math.Sin(theta + rot));
//float dirYMax = -(float)(Math.Cos(theta + rot));
//float dirX;
//float dirY;
//dirX = (float)(rand.Next(-1, 1) * rand.NextDouble() * Math.Abs((double)(dirXMax) - (double)(dirXMin)));
//dirY = (float)(rand.Next(-1, 1) * rand.NextDouble() * Math.Abs((double)(dirYMax) - (double)(dirYMin)));
//dirX = (float)(dirX + dirXMin);
//dirY = (float)(dirY + dirYMin);
//if (angle == 2 * Math.PI)
//{
// dirX = (float)rand.Next(-100, 100);
// dirY = (float)rand.Next(-100, 100);
// dirX = dirX / 100;
// dirY = dirY / 100;
//}
if (type == Shape.CIRCLE)
{
Vector2D ps;
ps.x = pos.x + (rand.Next((int)(-radius-(tmp.Source.Right/2)), (int)(radius+(tmp.Source.Right/2))));
ps.y = pos.y + (rand.Next((int)(-radius-(tmp.Source.Bottom/2)), (int)(radius+(tmp.Source.Bottom/2))));
tmp.Pos = ps;
}
else if (type == Shape.SQUARE)
{
Vector2D ps;
ps.x = (pos.X-width/2) + (rand.Next(0, width));
ps.y = (pos.Y-height/2) + (rand.Next(0, height));
tmp.Pos = ps;
}
else if (type == Shape.LINE)
{
Vector2D ps = new Vector2D();
if( point.x > point2.x )
ps.x = (rand.Next((int)point2.x, (int)point.x));
else
ps.x = (rand.Next((int)point.x, (int)point2.x));
if( point.y > point2.y )
ps.y = (rand.Next((int)point2.y, (int)point.y));
else
ps.y = (rand.Next((int)point.x, (int)point2.y));
tmp.Pos = ps;
}
else
{
tmp.Pos = pos;
}
// Finds the start velocity
Vector2D vel;
float x = (float)rand.Next((int)(velStartMin.x * 100), (int)(velStartMax.x * 100));
float y = (float)rand.Next((int)(velStartMin.y * 100), (int)(velStartMax.y * 100));
vel.x = (x / 100.0f);
vel.y = (y / 100.0f);
vel.y *= -1;
tmp.VelocityStart = vel;
// Finds the end velocity
x = (float)rand.Next((int)(velEndMin.x * 100), (int)(velEndMax.x * 100));
y = (float)rand.Next((int)(velEndMin.y * 100), (int)(velEndMax.y * 100));
vel.x = (x / 100.0f);
vel.y = (y / 100.0f);
vel.y *= -1;
tmp.VelocityEnd = vel;
tmp.CurVelocity = tmp.VelocityStart;
float life = (float)rand.Next((int)(lifeMin * 100), (int)(lifeMax * 100));
tmp.MaxLife = (life / 100.0f);
particles.Add(tmp);
}
float sr = (float)(rand.Next( (int)(spawnMin * 100), (int)(spawnMax * 100) ));
spawnRate = sr / 100.0f;
spawnTimer = 0;
}
private void addParticle(Vector2f position)
{
Particle p = new Particle();
p.Position = position;
p.Colour = colour;
p.Lifetime = m_particleLifetime;
p.Velocity = (m_randomVelocity) ?
m_randomInitialVelocities[m_random.Next(0, m_randomInitialVelocities.Count)] : m_initialVelocity;
m_particles.Enqueue(p);
}
public void update(Particle p, float dt)
{
p.Velocity = new Vector2f(p.Velocity.X * m_scale.X, p.Velocity.Y * m_scale.Y);
}
public void update(Particle p, float dt)
{
p.Scale += (m_scale * dt);
}
public void update(Particle p, float dt)
{
p.Rotation += m_rotation * dt;
}
public void update(Particle p, float dt)
{
p.Velocity += m_force * dt;
}
public void update(Particle p, float dt)
{
float ratio = (m_duration - p.Lifetime) / m_duration;
ratio = Math.Max(0f, Math.Min(ratio, 1f));
SFML.Graphics.Color c = new SFML.Graphics.Color
(
lerp(m_start.R, m_end.R, ratio),
lerp(m_start.G, m_end.G, ratio),
lerp(m_start.B, m_end.B, ratio)
);
p.Colour = c;
}
