public SS_Cloud(int seed, int size, double frequency, double lacunarity, int octaves, Color tint, float brightness)
{
// Create sprite texture
Sprite = new SS_Texture(size, size, Color.white);
// Initialize noise with parameters
RidgedMultifractal noise = new RidgedMultifractal(frequency, lacunarity, octaves, seed, QualityMode.Medium);
// Create cloud
for (int y = 0; y < size; y++)
{
for (int x = 0; x < size; x++)
{
float distance = SS_Point.Distance(new SS_Point(x, y), Sprite.Center);
float n = (float)noise.GetValue(x, y, 0);
Color pixelColor = tint * n * brightness;
float blackness = ((pixelColor.r + pixelColor.g + pixelColor.b) / 3.0f);
float fade = distance / (size / 2);
pixelColor.a = (1f - fade) * blackness;
if (distance > (size / 2))
{
pixelColor.a = 0f;
}
Sprite.SetPixel(x, y, pixelColor);
}
}
}
void CreateFlare(SS_Texture texture, SS_Point lightPoint, int radius, bool customTint, Color tint)
{
Color flareColor = tint;
if (!customTint)
{
flareColor = new Color(random.Range(0f, 1f), random.Range(0f, 1f), random.Range(0f, 1f));
}
int hRad = radius / 2;
int xMin = lightPoint.x - hRad;
int yMin = lightPoint.y - hRad;
int xMax = lightPoint.x + hRad;
int yMax = lightPoint.y + hRad;
for (int y = yMin; y < yMax; y++)
{
for (int x = xMin; x < xMax; x++)
{
float distance = SS_Point.Distance(lightPoint, new SS_Point(x, y));
if (distance < hRad)
{
Color c = SS_Utilities.Blend(flareColor, texture.GetPixel(x, y), 1.0f - ((distance - 0) / (hRad - 0)));
if (texture.GetPixel(x, y).a == 0f)
{
c.a = 1f;
}
texture.SetPixel(x, y, c);
}
}
}
}
public SS_Blackhole(int seed, int size)
{
Seed = seed;
Size = size;
Sprite = new SS_Texture(Size, Size, Color.clear);
SS_Random random = new SS_Random(Seed);
float radius = Size * 0.75f;
float atmosphereThickness = Size * 0.125f;
for (int y = 0; y < Size; y++)
{
for (int x = 0; x < Size; x++)
{
//float dist = Vector2.Distance(new Vector2(x, y), new Vector2(sprite.Center.x, sprite.Center.y));
int dist = SS_Point.Distance(new SS_Point(x, y), Sprite.Center);
if (dist <= (radius / 2))
{
Sprite.SetPixel(x, y, Color.black);
}
// Create "glow"
Color currentPixel = Sprite.GetPixel(x, y);
Color atmosphereColor = Color.black;
if (currentPixel == Color.clear)
{
atmosphereColor.a = 1;
//float distToEdge = Vector2.Distance(new Vector2(x, y), new Vector2(sprite.Center.x, sprite.Center.y));
int distToEdge = SS_Point.Distance(new SS_Point(x, y), Sprite.Center);
if (distToEdge < (radius / 2) + atmosphereThickness &&
distToEdge > (radius / 2))
{
float dist2 = dist - (radius / 2);
atmosphereColor.a = (atmosphereThickness - dist2) / atmosphereThickness;;
Sprite.SetPixel(x, y, atmosphereColor);
}
}
}
}
// Calculate the number of light points around the even horizon based on the square root of the size halfed.
int lightSpecCount = (int)(Mathf.Sqrt(Size) / 2) * Size;
// Create specs of light around event horizon
for (int i = 0; i < lightSpecCount; i++)
{
int a = random.Range(0, 359);
int dist = (short)random.Range(radius * 0.25f, radius * 0.65f);
int x = Sprite.Center.x + (int)(Mathf.Cos(a * Mathf.Deg2Rad) * dist);
int y = Sprite.Center.y + (int)(Mathf.Sin(a * Mathf.Deg2Rad) * dist);
SS_Point p = new SS_Point(x, y);
int distToCenter = SS_Point.Distance(p, Sprite.Center);
float v = 1 - (distToCenter / radius);
Color c = new Color(v, v, v);
Sprite.SetPixel(x, y, c);
}
SS_Drawing.Swirl(Sprite, Sprite.Width / 2, Sprite.Height / 2, Sprite.Width / 2, 5f);
for (int y = 0; y < Size; y++)
{
for (int x = 0; x < Size; x++)
{
float dist = Vector2.Distance(new Vector2(x, y), new Vector2(Sprite.Center.x, Sprite.Center.y));
if (dist > (radius * 0.25f))
{
Color c = Sprite.GetPixel(x, y);
c.a = 1 - (dist / (Size / 2));
Sprite.SetPixel(x, y, c);
}
}
}
SS_Drawing.Ellipse(Sprite, Sprite.Center.x, Sprite.Center.y, (int)(radius * 0.25), (int)(radius * 0.25), 32, Color.white);
}
private void CreateBody(SS_Texture targetTexture, SS_ShipBody body, int length, int smoothCount, bool highlights)
{
// Temporary texture
SS_Texture tmpTexture = new SS_Texture(Size, Size, Color.clear);
// Determine type of body to generate
if (body == SS_ShipBody.Human)
{
// Data points for body edge
List <SS_Point> topPoints = new List <SS_Point>();
List <SS_Point> bottomPoints = new List <SS_Point>();
// Noise generator
Perlin perlin = new Perlin(BodyDetail, 2, 0.5, 8, Seed, QualityMode.Medium);
// Calculated step points
int step = length / GetRandomBodyStep(length);
for (int xCnt = 0; xCnt <= length; xCnt += step)
{
// Get some funky noise value
float noise = (float)perlin.GetValue(xCnt, 0, 0);
noise = (noise + 3.0f) * 0.25f; // Convert to 0 to 1
noise = Mathf.Clamp(noise, 0.05f, 1f);
int x = Sprite.Center.x - (length / 2) + xCnt;
if (x > Size - 1)
{
x = Size - 1;
}
int y = (int)(noise * (Size / 4));
topPoints.Add(new SS_Point(x, Sprite.Center.y + y));
}
// Fix first and last points so they are less ugly than a random tip and butt.
topPoints[0] = new SS_Point(topPoints[0].x, Sprite.Center.y + 4);
topPoints[topPoints.Count - 1] = new SS_Point(topPoints[topPoints.Count - 1].x, Sprite.Center.y + 2);
// Loop through all the points and smooth them out a bit
for (int j = 0; j < smoothCount; j++)
{
for (int i = 0; i < topPoints.Count - 1; i++)
{
float y = (topPoints[i].y + topPoints[i + 1].y) / 2f;
y = Mathf.Ceil(y);
topPoints[i] = new SS_Point(topPoints[i].x, (int)y);
}
}
// Duplicate top points to bottom points but inverse the Y position
for (int i = 0; i < topPoints.Count; i++)
{
SS_Point p = topPoints[i];
p.y = Size - p.y - 1;
bottomPoints.Add(p);
}
// Draw the body outline - use lines since they seem to be more symmetric (pixel placement) than my polygon drawing... not sure why.
SS_Drawing.LineStrip(tmpTexture, topPoints.ToArray(), SS_StellarSprite.OutlineColor);
SS_Drawing.LineStrip(tmpTexture, bottomPoints.ToArray(), SS_StellarSprite.OutlineColor);
// Connect both sizes of lines
SS_Drawing.Line(tmpTexture, topPoints[0].x, topPoints[0].y, topPoints[0].x, (Size - topPoints[0].y), SS_StellarSprite.OutlineColor);
SS_Drawing.Line(tmpTexture, topPoints[topPoints.Count - 1].x, topPoints[topPoints.Count - 1].y, topPoints[topPoints.Count - 1].x, (Size - topPoints[topPoints.Count - 1].y), SS_StellarSprite.OutlineColor);
// Fill with magenta
SS_Drawing.FloodFillArea(tmpTexture, Sprite.Center, SS_StellarSprite.FillColor);
// Inner detail (same shape as body, but slightly smaller)
for (int i = 0; i < topPoints.Count; i++)
{
topPoints[i] = SS_Point.Scale(topPoints[i], Sprite.Center, 0.5f, 0.25f);
}
for (int i = 0; i < bottomPoints.Count; i++)
{
bottomPoints[i] = SS_Point.Scale(bottomPoints[i], Sprite.Center, 0.5f, 0.25f);
}
// Draw the body outline - use lines since they seem to be more symmetric (pixel placement) than my polygon drawing... not sure why.
SS_Drawing.LineStrip(tmpTexture, topPoints.ToArray(), SS_StellarSprite.OutlineColor);
SS_Drawing.LineStrip(tmpTexture, bottomPoints.ToArray(), SS_StellarSprite.OutlineColor);
// Connect both sizes of lines
SS_Drawing.Line(tmpTexture, topPoints[0].x, topPoints[0].y, topPoints[0].x, (Size - topPoints[0].y), SS_StellarSprite.OutlineColor);
SS_Drawing.Line(tmpTexture, topPoints[topPoints.Count - 1].x, topPoints[topPoints.Count - 1].y, topPoints[topPoints.Count - 1].x, (Size - topPoints[topPoints.Count - 1].y), SS_StellarSprite.OutlineColor);
// Texturize and shade
if (!DebugDrawing)
{
Texturize(tmpTexture, SS_StellarSprite.FillColor, ColorBase, highlights, true);
SS_StellarSprite.ShadeEdge(tmpTexture);
}
SS_Drawing.MergeColors(targetTexture, tmpTexture, 0, 0);
}
else if (body == SS_ShipBody.Alien)
{
float bodyAngleSteps = 360.0f / 32;
List <SS_Point> bodyPoints = new List <SS_Point>();
for (float angle = 0; angle < 360f; angle += bodyAngleSteps)
{
int px = (int)((Size / 2) + (Mathf.Cos(angle * Mathf.Deg2Rad) * (BodyLength * 0.5)));
int py = (int)((Size / 2) + (Mathf.Sin(angle * Mathf.Deg2Rad) * (BodyLength * 0.5)));
bodyPoints.Add(new SS_Point(px, py));
}
SS_Drawing.PolygonFill(tmpTexture, bodyPoints.ToArray(), SS_StellarSprite.OutlineColor, SS_StellarSprite.FillColor);
if (!DebugDrawing)
{
Texturize(tmpTexture, SS_StellarSprite.FillColor, ColorBase, false, true);
}
Color ringColor = random.NextColor();
int ringMin = random.RangeEven(12, 18);
int ringMax = random.RangeEven(18, 24);
for (int y = 0; y < Size; y++)
{
for (int x = 0; x < Size; x++)
{
int dist = SS_Point.Distance(new SS_Point(x, y), Sprite.Center);
if (dist >= ringMin && dist <= ringMax)
{
tmpTexture.SetPixel(x, y, tmpTexture.GetPixel(x, y) * ringColor);
}
}
}
if (random.NextBool())
{
CreateFlare(tmpTexture, Sprite.Center, 48, true, random.NextColor());
}
if (random.NextBool())
{
CreateFlare(tmpTexture, Sprite.Center, 24, true, Color.white);
}
if (!DebugDrawing)
{
SS_StellarSprite.ShadeEdge(tmpTexture);
}
SS_Drawing.MergeColors(targetTexture, tmpTexture, 0, 0);
}
}