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 static void Blur(ref SS_Texture texture)
{
SS_Texture tmp = new SS_Texture(texture.Width, texture.Height, Color.clear);
float v = 1.0f / 9.0f;
float[,] kernel = { { v, v, v },
{ v, v, v },
{ v, v, v } };
// Loop through every pixel in the image
for (int y = 1; y < texture.Height - 1; y++)
{
for (int x = 1; x < texture.Width - 1; x++)
{
float alpha = texture.GetPixel(x, y).a;
Color sum = Color.clear; // Kernel sum for this pixel
for (int ky = -1; ky <= 1; ky++)
{
for (int kx = -1; kx <= 1; kx++)
{
sum += kernel[ky + 1, kx + 1] * texture.GetPixel(x + kx, y + ky);
}
}
sum.a = alpha;
tmp.SetPixel(x, y, sum);
}
}
// Apply changes
texture = tmp;
}
void Texturize(SS_Texture texture, Color targetColor, Color tint, bool highlights, bool shading)
{
Perlin perlin = new Perlin(0.025, 2, 0.5, 8, Seed, QualityMode.Low);
SS_Texture BaseTexture = SS_StellarSprite.GenerateBaseTexture(Seed, texture.Width, texture.Height, 8 * (random.Range(1, 2)));
for (int y = texture.Height / 2; y < texture.Height; y++)
{
for (int x = texture.Width / 2; x < texture.Width; x++)
{
if (texture.GetPixel(x, y) == targetColor)
{
Color hullShade = BaseTexture.GetPixel(x, y);
// Pixel shade
float pixelNoise = (float)perlin.GetValue(x, y, 0);
pixelNoise = (pixelNoise + 3.0f) * 0.25f; // 0.5 to 1.0
pixelNoise = Mathf.Clamp(pixelNoise, 0.5f, 1f);
hullShade *= tint * pixelNoise;
if (shading)
{
SS_StellarSprite.PixelLighting(texture, x, y, ref hullShade);
}
hullShade.a = 1.0f;
texture.SetPixel(x, y, hullShade);
}
}
}
}
public static void Swirl(SS_Texture texture, int aX, int aY, int radius, float twists)
{
SS_Texture tmpTexture = new SS_Texture(texture.Width, texture.Height, Color.clear);
for (int y = 0; y < texture.Height; y++)
{
for (int x = 0; x < texture.Width; x++)
{
// compute the distance and angle from the swirl center:
int pixelX = x - aX;
int pixelY = y - aY;
float pixelDistance = Mathf.Sqrt((pixelX * pixelX) + (pixelY * pixelY));
float pixelAngle = Mathf.Atan2(pixelY, pixelX);
// work out how much of a swirl to apply (1.0 in the center fading out to 0.0 at the radius):
float swirlAmount = 1.0f - (pixelDistance / radius);
if (swirlAmount > 0.0f)
{
float twistAngle = twists * swirlAmount * Mathf.PI * 2.0f;
// adjust the pixel angle and compute the adjusted pixel co-ordinates:
pixelAngle += twistAngle;
pixelX = (int)(Mathf.Cos(pixelAngle) * pixelDistance);
pixelY = (int)(Mathf.Sin(pixelAngle) * pixelDistance);
}
// read and write the pixel
tmpTexture.SetPixel(x, y, texture.GetPixel(aX + pixelX, aY + pixelY));
}
}
texture.SetPixels(tmpTexture.GetPixels());
}
// Generate a generally boring metallic-like texture (ships and stations use this)
public static SS_Texture GenerateBaseTexture(int seed, int textureWidth, int textureHeight, int detail)
{
SS_Texture tmpTexture = new SS_Texture(textureWidth, textureHeight, Color.clear);
Perlin noise = new Perlin(0.005, 2, 0.5, 6, seed, QualityMode.Low);
int offsetX = tmpTexture.Width / detail;
int offsetY = tmpTexture.Height / detail;
for (int y = 0; y < tmpTexture.Height; y += offsetY)
{
for (int x = 0; x < tmpTexture.Width; x += offsetX)
{
float n1 = (float)noise.GetValue(x, y, 0);
n1 = (n1 + 3.0f) * 0.25f;
n1 = Mathf.Clamp(n1, 0.5f, 1f);
float n2 = (float)noise.GetValue(x, y, 0);
n2 = (n2 + 3.0f) * 0.25f;
n2 = Mathf.Clamp(n2, 0.95f, 1f);
Color c = new Color(n1, n1, n1, 1f);
SS_Drawing.RectangleFill(tmpTexture, x, y, offsetX, offsetY, c, c);
Color current = tmpTexture.GetPixel(x, y);
Color c3 = new Color(current.r * n2, current.g * n2, current.b * n2);
SS_Drawing.Line(tmpTexture, x, y, x, y + detail, c3);
SS_Drawing.Line(tmpTexture, x, y, x + detail, y, c3);
}
}
return(tmpTexture);
}
public static void Outline(SS_Texture spriteTexture, Color outlineColor)
{
for (int y = 1; y < spriteTexture.Height - 1; y++)
{
for (int x = 1; x < spriteTexture.Width - 1; x++)
{
Color c = spriteTexture.GetPixel(x, y);
if (c != Color.clear)
{
Color tL = spriteTexture.GetPixel(x - 1, y - 1);
Color tM = spriteTexture.GetPixel(x, y - 1);
Color tR = spriteTexture.GetPixel(x + 1, y - 1);
Color mL = spriteTexture.GetPixel(x - 1, y);
Color mR = spriteTexture.GetPixel(x + 1, y);
Color bL = spriteTexture.GetPixel(x - 1, y + 1);
Color bM = spriteTexture.GetPixel(x, y + 1);
Color bR = spriteTexture.GetPixel(x + 1, y + 1);
if (tL == Color.clear || tM == Color.clear || tR == Color.clear ||
mL == Color.clear || mR == Color.clear ||
bL == Color.clear || bM == Color.clear || bR == Color.clear)
{
spriteTexture.SetPixel(x, y, outlineColor);
}
}
}
}
for (int y = 0; y < spriteTexture.Height; y++)
{
for (int x = 0; x < spriteTexture.Width; x++)
{
Color c = spriteTexture.GetPixel(x, y);
if (c != Color.clear)
{
if (x == 0 || x == spriteTexture.Width - 1 || y == 0 || y == spriteTexture.Height - 1)
{
spriteTexture.SetPixel(x, y, outlineColor);
}
}
}
}
}
private void Texturize(SS_Texture texture, Color targetColor, Color tint, bool highlights, bool shading)
{
Perlin perlin = new Perlin(ColorDetail, 2, 0.5, 8, Seed, QualityMode.High);
Voronoi hightlightVoronoi = new Voronoi(ColorDetail, 2, Seed, true);
SS_Texture BaseTexture = SS_StellarSprite.GenerateBaseTexture(Seed, Size, Size, 16);
for (int y = Size / 2; y < Size; y++)
{
for (int x = 0; x < Size; x++)
{
if (texture.GetPixel(x, y) == targetColor)
{
Color hullShade = BaseTexture.GetPixel(x, y);
//Pixel shade
float pixelNoise = (float)perlin.GetValue(x, y, 0);
pixelNoise = (pixelNoise + 3.0f) * 0.25f; // 0.5 to 1.0
pixelNoise = Mathf.Clamp(pixelNoise, 0.5f, 1f);
hullShade *= tint * pixelNoise;
if (highlights)
{
// Pixel shade
float hightlightNoise = (float)hightlightVoronoi.GetValue(x, y, 0);
hightlightNoise = (hightlightNoise + 1.0f) * 0.5f; // 0.0 to 1.0
hightlightNoise = Mathf.Clamp(hightlightNoise, 0.0f, 1f);
if (hightlightNoise <= 0.75f)
{
hullShade = ColorBase * pixelNoise;
}
else
{
hullShade = ColorHighlight * pixelNoise;
}
}
// Check the current pixel and find when it hits a solid black outline. if it does
// Make the current pixel a bit darker - do for all 4 dirtections
if (shading)
{
SS_StellarSprite.PixelLighting(texture, x, y, ref hullShade);
}
hullShade.a = 1.0f;
texture.SetPixel(x, y, hullShade);
}
}
}
// Mirror
SS_StellarSprite.Mirror(texture, SS_Mirror.Vertical);
}
public static void FloodFill(SS_Texture texture, SS_Point pt, Color targetColor, Color replacementColor)
{
targetColor = texture.GetPixel(pt.x, pt.y);
if (targetColor == replacementColor)
{
return;
}
Stack <SS_Point> pixels = new Stack <SS_Point>();
pixels.Push(pt);
while (pixels.Count != 0)
{
SS_Point temp = pixels.Pop();
int y1 = temp.y;
while (y1 >= 0 && texture.GetPixel(temp.x, y1) == targetColor)
{
y1--;
}
y1++;
bool spanLeft = false;
bool spanRight = false;
while (y1 < texture.Height && texture.GetPixel(temp.x, y1) == targetColor)
{
texture.SetPixel(temp.x, y1, replacementColor);
if (!spanLeft && temp.x > 0 && texture.GetPixel(temp.x - 1, y1) == targetColor)
{
pixels.Push(new SS_Point(temp.x - 1, y1));
spanLeft = true;
}
else if (spanLeft && temp.x - 1 == 0 && texture.GetPixel(temp.x - 1, y1) != targetColor)
{
spanLeft = false;
}
if (!spanRight && temp.x < texture.Width - 1 && texture.GetPixel(temp.x + 1, y1) == targetColor)
{
pixels.Push(new SS_Point(temp.x + 1, y1));
spanRight = true;
}
else if (spanRight && temp.x < texture.Width - 1 && texture.GetPixel(temp.x + 1, y1) != targetColor)
{
spanRight = false;
}
y1++;
}
}
}
public static void Mirror(SS_Texture texture, SS_Mirror location)
{
// Mirror top right horizontally and vertically
if (location == SS_Mirror.TopRight)
{
// Vertical
for (int y = (texture.Height / 2); y < texture.Height; y++)
{
for (int x = texture.Width / 2; x < texture.Width; x++)
{
Color target = texture.GetPixel(x, y);
if (target != Color.clear)
{
int y1 = texture.Height - y - 1;
texture.SetPixel(x, y1, texture.GetPixel(x, y));
}
}
}
// Horizontal
for (int y = 0; y < texture.Height; y++)
{
for (int x = (texture.Width / 2); x < texture.Width; x++)
{
Color target = texture.GetPixel(x, y);
if (target != Color.clear)
{
int x1 = texture.Width - x - 1;
texture.SetPixel(x1, y, texture.GetPixel(x, y));
}
}
}
}
else if (location == SS_Mirror.Vertical)
{
// Vertical
for (int y = (texture.Height / 2); y < texture.Height; y++)
{
for (int x = 0; x < texture.Width; x++)
{
Color target = texture.GetPixel(x, y);
if (target != Color.clear)
{
int y1 = texture.Height - y - 1;
texture.SetPixel(x, y1, texture.GetPixel(x, y));
}
}
}
}
}
public static Color[] GenerateColorWheelColors(int seed, int count)
{
SS_Texture colorWheel = ColorWheel();
Color[] colors = new Color[count];
SS_Random random = new SS_Random(seed);
float angle = random.Range(0f, 360f);
for (int i = 0; i < count; i++)
{
float xPos = (colorWheel.Width / 2) + Mathf.Cos(angle) * 32;
float yPos = (colorWheel.Height / 2) + Mathf.Sin(angle) * 32;
colors[i] = colorWheel.GetPixel((int)xPos, (int)yPos);
angle += 360 / count;
}
return(colors);
}
public static void MergeColors(SS_Texture target, SS_Texture source, int xOffset, int yOffset)
{
int x1 = xOffset;
int y1 = yOffset;
int x2 = 0;
int y2 = 0;
for (int y = y1; y < y1 + source.Height; y++)
{
x2 = 0;
for (int x = x1; x < x1 + source.Width; x++)
{
Color c = source.GetPixel(x2, y2);
if (c != Color.clear)
{
target.SetPixel(x, y, c);
}
x2++;
}
y2++;
}
}
private void CreateWing(SS_Texture targetTexture, Color baseColor, bool highlights)
{
// Temporary texture
SS_Texture tmpTexture = new SS_Texture(Size, Size, Color.clear);
// Wing dimensions
int wingLength = 64;// (int)(random.RangeEven(32, 64));
int wingSize = (int)(random.Range(4, 12));
int wingCenterX = wingSize / 2;
int wingOffsetX = random.Range((Size / 2) - (BodyLength / 2), (Size / 2) + wingSize);
// Data points for body edge
List <SS_Point> fPoints = new List <SS_Point>();
List <SS_Point> bPoints = new List <SS_Point>();
// Noise generators
RidgedMultifractal fWingNoise = new RidgedMultifractal(WingDetail, 2, 8, Seed, QualityMode.Medium);
RidgedMultifractal bWingNoise = new RidgedMultifractal(WingDetail, 2, 8, Seed + 1, QualityMode.Medium);
// Determine if wing has a flat edge
int fEdgeMod = random.RangeEven(0, 8);
int bEdgeMod = random.RangeEven(0, 8);
// Start point of wing (this determinds if the wings are separated or joined
int startY = 0;
if (random.NextBool())
{
startY = random.RangeEven(2, 8);
}
int fEndY = Sprite.Center.y + (wingLength / 2) - fEdgeMod;
int bEndY = Sprite.Center.y + (wingLength / 2) - bEdgeMod;
// Calculate steps based on length of modified wing length
int fStep = (fEndY - Sprite.Center.y) / 4;
int bStep = (bEndY - Sprite.Center.y) / 4;
// Front Edge
for (int y = Sprite.Center.y + startY; y <= fEndY + 1; y += fStep)
{
// Get some funky noise value for the back of the wing
float noise = (float)fWingNoise.GetValue(0, y, 0);
noise = (noise + 1.0f) * 0.5f; // Convert to 0 to 1
noise = Mathf.Clamp(noise, 0.05f, 1f);
int x = (wingOffsetX + wingCenterX) + (int)(noise * wingSize);
if (x > Size - 1)
{
x = Size - 1; // Clamp to bounds
}
fPoints.Add(new SS_Point(x, y));
}
// Back Edge
for (int y = Sprite.Center.y + startY; y <= bEndY + 1; y += bStep)
{
// Get some funky noise value for the front of the wing
float noise = (float)bWingNoise.GetValue(0, y, 0);
noise = (noise + 1.0f) * 0.5f; // Convert to 0 to 1
noise = Mathf.Clamp(noise, 0.05f, 1f);
int x = (wingOffsetX - wingCenterX) - (int)(noise * wingSize);
if (x < 0)
{
x = 0; // Clamp to bounds
}
bPoints.Add(new SS_Point(x, y));
}
// Smoothing
for (int j = 0; j < 2; j++)
{
for (int i = 0; i < fPoints.Count - 1; i++)
{
float x = (fPoints[i].x + fPoints[i + 1].x) / 2f;
fPoints[i] = new SS_Point((int)x, fPoints[i].y);
}
for (int i = 0; i < bPoints.Count - 1; i++)
{
float x = (bPoints[i].x + bPoints[i + 1].x) / 2f;
bPoints[i] = new SS_Point((int)x, bPoints[i].y);
}
}
// Build polygon using both sets of points (left and right side)
List <SS_Point> points = new List <SS_Point>();
for (int i = 0; i < fPoints.Count; i++)
{
points.Add(fPoints[i]);
}
// Add the back edge points backwards to the point list to keep the vertex ordering correct
for (int i = bPoints.Count - 1; i >= 0; i--)
{
points.Add(bPoints[i]);
}
// Create wing weapons before drawing the actual wing so they appear underneigth
CreateWeapon(targetTexture, new SS_Point(wingOffsetX + wingCenterX, (Size / 2) + (startY + (wingLength / 4))), Color.yellow);
CreateWeapon(targetTexture, new SS_Point(wingOffsetX + wingCenterX, (Size / 2) - (startY + (wingLength / 4))), Color.yellow);
// Draw polygon for the wing
SS_Drawing.PolygonFill(tmpTexture, points.ToArray(), SS_StellarSprite.FillColor, SS_StellarSprite.FillColor);
// Mirror Vertically for the bottom/right wing
int cntr = 1;
for (int y = Sprite.Center.y; y < Size; y++)
{
for (int x = 0; x < Size; x++)
{
int newY = y - cntr;
tmpTexture.SetPixel(x, newY, tmpTexture.GetPixel(x, y));
}
cntr += 2;
}
// Draw the wing(s) outline
SS_Drawing.Outline(tmpTexture, SS_StellarSprite.OutlineColor);
// Texturize and shade
if (!DebugDrawing)
{
Texturize(tmpTexture, SS_StellarSprite.FillColor, baseColor, highlights, true);
SS_StellarSprite.ShadeEdge(tmpTexture);
}
SS_Drawing.MergeColors(targetTexture, tmpTexture, 0, 0);
}
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);
}
// Light pixels as they approach black borders
public static void PixelLighting(SS_Texture texture, int x, int y, ref Color hullShade)
{
int Width = texture.Width;
int Height = texture.Height;
float eastShading = 1.5f;
float westShading = 1.5f;
float northShading = 1.5f;
float southShading = 1.5f;
int shadingThickness = 4;
bool hasEastBorder = false;
int cntr = 0;
while (!hasEastBorder)
{
int currentX = x + cntr;
if (currentX < 0)
{
currentX = 0;
}
if (currentX > Width - 1)
{
currentX = Width - 1;
}
Color shadingPixel = texture.GetPixel(currentX, y);
if (shadingPixel == Color.black)
{
hasEastBorder = true;
}
cntr++;
if (cntr > shadingThickness)
{
break;
}
}
if (hasEastBorder)
{
hullShade *= eastShading;
}
bool hasWestBorder = false;
cntr = 0;
while (!hasWestBorder)
{
int currentX = x - cntr;
if (currentX < 0)
{
currentX = 0;
}
if (currentX > Width - 1)
{
currentX = Width - 1;
}
Color shadingPixel = texture.GetPixel(currentX, y);
if (shadingPixel == Color.black)
{
hasWestBorder = true;
}
cntr++;
if (cntr > shadingThickness)
{
break;
}
}
if (hasWestBorder)
{
hullShade *= westShading;
}
bool hasNorthBorder = false;
cntr = 0;
while (!hasNorthBorder)
{
int currentY = y - cntr;
if (currentY < 0)
{
currentY = 0;
}
if (currentY > Height - 1)
{
currentY = Height - 1;
}
Color shadingPixel = texture.GetPixel(x, currentY);
if (shadingPixel == Color.black)
{
hasNorthBorder = true;
}
cntr++;
if (cntr > shadingThickness)
{
break;
}
}
if (hasNorthBorder)
{
hullShade *= northShading;
}
bool hasSouthBorder = false;
cntr = 0;
while (!hasSouthBorder)
{
int currentY = y + cntr;
if (currentY < 0)
{
currentY = 0;
}
if (currentY > Height - 1)
{
currentY = Height - 1;
}
Color shadingPixel = texture.GetPixel(x, currentY);
if (shadingPixel == Color.black)
{
hasSouthBorder = true;
}
cntr++;
if (cntr > shadingThickness)
{
break;
}
}
if (hasSouthBorder)
{
hullShade *= southShading;
}
}
// Darken any pixels next the black borders
public static void ShadeEdge(SS_Texture texture)
{
Color[] tmpColors = new Color[texture.Width * texture.Height];
for (int y = 0; y < texture.Height; y++)
{
for (int x = 0; x < texture.Width; x++)
{
tmpColors[x + y * texture.Width] = texture.GetPixel(x, y);
}
}
for (int y = 1; y < texture.Height - 1; y++)
{
for (int x = 1; x < texture.Width - 1; x++)
{
Color c = texture.GetPixel(x, y);
if (c != Color.clear && c != Color.black)
{
Color tL = texture.GetPixel(x - 1, y - 1);
Color tM = texture.GetPixel(x, y - 1);
Color tR = texture.GetPixel(x + 1, y - 1);
Color mL = texture.GetPixel(x - 1, y);
Color mR = texture.GetPixel(x + 1, y);
Color bL = texture.GetPixel(x - 1, y + 1);
Color bM = texture.GetPixel(x, y + 1);
Color bR = texture.GetPixel(x + 1, y + 1);
if ((tL == Color.black || tM == Color.black || tR == Color.black ||
mL == Color.black || mR == Color.black ||
bL == Color.black || bM == Color.black || bR == Color.black))
{
c.r *= 0.5f;
c.g *= 0.5f;
c.b *= 0.5f;
tmpColors[x + y * texture.Width] = c;
}
}
}
}
for (int x = 0; x < texture.Width; x++)
{
if (texture.GetPixel(x, 0) != Color.clear)
{
texture.SetPixel(x, 0, Color.black);
}
if (texture.GetPixel(x, texture.Height - 1) != Color.clear)
{
texture.SetPixel(x, texture.Height - 1, Color.black);
}
}
texture.SetPixels(tmpColors);
}
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);
}
}
public SS_Sun(int seed, int size, Color mainColor)
{
Seed = seed;
Size = size;
Sprite = new SS_Texture(Size, Size, Color.clear);
Perlin noise = new Perlin(0.05, 2, 0.5, 8, Seed, QualityMode.Low);
Perlin noiseGlow = new Perlin(0.005, 2, 0.5, 6, Seed, QualityMode.Low);
float radius = Size * 0.75f;
Color[] tmp = new Color[3];
tmp[0] = Color.white;
tmp[1] = mainColor;
tmp[2] = new Color(255f / 255f, 102f / 255f, 0f);
Color[] gradient = SS_Utilities.CreateGradient(tmp, 8, 32);
float atmosphereThickness = Size * 0.125f;
Color hotnessColor = Color.white;
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 / 2))
{
float n = (float)noise.GetValue(x, y, 0);
n = (n + 1.0f) * 0.5f;
n = Mathf.Clamp(n, 0f, 1f);
n *= (gradient.Length - 1);
Color baseColor = gradient[(int)n];
// Edge Hotness
hotnessColor.a = dist / (radius / 2);
hotnessColor.a += 0.0025f;
Color c = baseColor;
c.r = Mathf.Clamp(c.r + (hotnessColor.r * hotnessColor.a), 0, 1);
c.g = Mathf.Clamp(c.g + (hotnessColor.g * hotnessColor.a), 0, 1);
c.b = Mathf.Clamp(c.b + (hotnessColor.b * hotnessColor.a), 0, 1);
Sprite.SetPixel(x, y, c);
}
// Create glow
Color currentPixel = Sprite.GetPixel(x, y);
Color atmosphereColor = Color.white;
if (currentPixel == Color.clear)
{
atmosphereColor.a = 1;
float distToEdge = Vector2.Distance(new Vector2(x, y), new Vector2(Sprite.Center.x, Sprite.Center.y));
if (distToEdge < (radius / 2) + atmosphereThickness &&
distToEdge > (radius / 2))
{
float dist2 = dist - (radius / 2);
dist2 = (atmosphereThickness - dist2) / atmosphereThickness;
float glowNoise = (float)noiseGlow.GetValue(x, y, 0);
glowNoise = (glowNoise + 1.0f) * 0.5f;
glowNoise = Mathf.Clamp(glowNoise, 0f, 1f);
atmosphereColor.a = Mathf.Pow(dist2, 2) * glowNoise;
Sprite.SetPixel(x, y, atmosphereColor);
}
}
}
}
}
public SS_Planet(int seed, int size, Color[] colors, SS_PlanetType planetType, double frequency, double lacunarity, double persistence, int octaves, bool oceans, bool clouds, float cloudDensity, float cloudTransparency, bool atmosphere, bool city, float cityDensity, bool ring, float ringDetail, float lightAngle)
{
Seed = seed;
if (ring)
{
Width = size * 2;
}
else
{
Width = size;
}
Height = size;
// randomize based on seed
random = new SS_Random(seed);
// Create the sprite texture
Sprite = new SS_Texture(Width, Height, Color.clear);
// Create a gradient using the supplid colors and between 16 and 32 steps
gradientColors = SS_Utilities.CreateGradient(colors, 16, 32);
// Generate Perlin Noise
//Perlin noise = new Perlin(frequency, 2, 0.5, 8, seed, QualityMode.High);
Perlin noise = new Perlin(frequency, lacunarity, persistence, octaves, seed, QualityMode.High);
Perlin cloudNoise = new Perlin(0.02, 2, 0.5, 12, seed + 1, QualityMode.Low);
// Radius of planet - only use 90% to make room for the atmosphere
float radius = Height * 0.9f;
// Oceans levels - determines how much water/terrain is visible
float settleLevel = 0.4f; //random.Range(0.25f, 0.75f);
// Thickeness of atmosphere - between 8-16 pixels
int atmosphereThickness = random.Range((int)(Height * 0.01f), (int)(Height * 0.05f));
atmosphereThickness = Mathf.Clamp(atmosphereThickness, 8, 16);
// Calculate light position based on supplied lightAngle (degrees)
Vector2 lightPosition = new Vector2(
Sprite.Center.x + (Mathf.Cos(lightAngle * Mathf.Deg2Rad) * (radius * 0.8f)),
Sprite.Center.y + (Mathf.Sin(lightAngle * Mathf.Deg2Rad) * (radius * 0.8f)));
if (lightPosition.y < 0)
{
lightPosition.y = 0;
}
if (lightPosition.y > Height - 1)
{
lightPosition.y = Height - 1;
}
for (int y = 0; y < Height; y++)
{
for (int x = 0; x < Width; x++)
{
// Get distance of current point to the center of the sprite
float dist = Vector2.Distance(new Vector2(x, y), Sprite.Center.ToVector2);
// Check to see if this point is within the planets radius
if (dist <= (radius / 2))
{
// Get noise value for current point and clamp it between 0 and 1
float planetNoise = (float)noise.GetValue(x, y, 0);
planetNoise = (planetNoise + 1.0f) * 0.5f;
planetNoise = Mathf.Clamp(planetNoise, 0f, 1f);
// Gas Giant
if (planetType == SS_PlanetType.Gas_Giant)
{
// Get distance of the current point to the top-center of the sprite
float distNorthPole = Vector2.Distance(new Vector2(x, Height - 1), Sprite.Center.ToVector2);
// Generate gassy noise
float n = (float)noise.GetValue(dist / 10 + (planetNoise * 10f), y - (distNorthPole / 5) + (planetNoise * 10f), 0);
n = (n + 1.0f) * 0.5f;
n = Mathf.Clamp(n, 0f, 1f);
n *= (gradientColors.Length - 1);
Sprite.SetPixel(x, y, gradientColors[(int)n]);
}
// Terrestrial
else if (planetType == SS_PlanetType.Terrestrial)
{
Color pixelColor = new Color();
if (oceans)
{
if (planetNoise > settleLevel)
{
float n = planetNoise * (gradientColors.Length - 1);
// Generate color and noise so land doesn't look to smooth
pixelColor = gradientColors[(int)n];
pixelColor *= planetNoise;
pixelColor.a = 1.0f;
}
else
{
float n = planetNoise * ((gradientColors.Length - 1) / colors.Length);
// solid ocean color
pixelColor = gradientColors[(int)n];
}
}
else
{
float n = planetNoise * (gradientColors.Length - 1);
// Generate color and noise so land doesn't look to smooth
pixelColor = gradientColors[(int)n];
}
pixelColor.a = 1.0f;
Sprite.SetPixel(x, y, pixelColor);
if (clouds)
{
float cloud = (float)cloudNoise.GetValue(x, y, 0);
cloud = (cloud + 1.0f) * 0.5f;
cloud = Mathf.Clamp(cloud, 0f, 1f);
if (cloud >= cloudDensity)
{
Color cloudColor = Color.white;
Color planetColor = Sprite.GetPixel(x, y);
float alpha = cloudTransparency * cloud;
Color newColor = new Color();
newColor.r = alpha * cloudColor.r + (1 - alpha) * planetColor.r;
newColor.g = alpha * cloudColor.g + (1 - alpha) * planetColor.g;
newColor.b = alpha * cloudColor.b + (1 - alpha) * planetColor.b;
newColor.a = 1f;
Sprite.SetPixel(x, y, newColor);
}
}
}
else if (planetType == SS_PlanetType.Barren)
{
// Generate gassy noise
float n = planetNoise;
n = (n + 1.0f) * 0.5f;
n = Mathf.Clamp(n, 0f, 1f);
n *= (gradientColors.Length - 1);
Sprite.SetPixel(x, y, gradientColors[(int)n]);
}
}
// Create inner atmosphere
if (atmosphere)
{
Color atmosphereColor = gradientColors[0];
atmosphereColor.a = 1f;
if (dist < (radius / 2) && dist > (radius / 2) - atmosphereThickness)
{
float d = Mathf.Abs(dist - (radius / 2));
float a = (atmosphereThickness - d) / atmosphereThickness;
Color newColor = SS_Utilities.Blend(atmosphereColor, Sprite.GetPixel(x, y), a);
Sprite.SetPixel(x, y, newColor);
}
}
}
}
// Ring
SS_Texture tmpRingRotated = new SS_Texture(Width, Height, Color.clear);
SS_Texture tmpRing = new SS_Texture(Width, Height, Color.clear);
if (ring)
{
Perlin perlinRing = new Perlin(ringDetail, 2, 0.5, 8, seed, QualityMode.High);
// Create a gradient using the supplid colors and between 16 and 32 steps
Color[] ringColors = SS_Utilities.GenerateColorWheelColors(seed, 6);
ringColors[1] = Color.black;
ringColors[4] = Color.black;
Color[] ringGradient = SS_Utilities.CreateGradient(ringColors, 8, 16);
float ringW = (int)(radius * 0.6);
float ringH = (int)(radius * random.Range(0.05f, 0.2f));
int resolution = 360;
// Basically we are drawing a bunch of ellipses that get bigger
for (int i = 0; i < (radius / 2) - 16; i++)
{
// I'm spicy and confusing because my programmer is a douche.
// I'll explain
// get some noise and normalize it from 0-1
float ringNoise = (float)perlinRing.GetValue(i, 0, 0);
ringNoise = (ringNoise + 1.0f) * 0.5f;
ringNoise = Mathf.Clamp(ringNoise, 0.0f, 1f);
// multiple said 0.0-1 value by the number of colors available for the ring to get an int value for what color to use of the array
Color c = ringGradient[(int)(ringNoise * (ringGradient.Length - 1))];
// The darkness of the color value also sets the alpha value (darker values are more transparent)
c.a = (c.r + c.g + c.b) / 3f;
SS_Drawing.Ellipse(tmpRing, Sprite.Center.x, Sprite.Center.y, (int)ringW, (int)ringH, resolution * 4, c);
ringW += 1f;
ringH += 0.5f;
}
// rotate ring
float ringAngle = random.Range(-3f, 3f);
for (int y = 0; y < Height; y++)
{
for (int x = 0; x < Width; x++)
{
SS_Point rotatedPoint = SS_Point.Rotate(new SS_Point(x, y), Sprite.Center.x, Sprite.Center.y, ringAngle);
tmpRingRotated.SetPixel(x, y, tmpRing.GetPixel(rotatedPoint.x, rotatedPoint.y));
}
}
//SS_Drawing.Blur(ref tmpRingRotated);
// Copy Ring data to Planet Sprite ignoring the parts "behind" the planet.
for (int y = 0; y < Height; y++)
{
for (int x = 0; x < Width; x++)
{
// Bottom (in front of planet)
if (y <= (Height / 2))
{
// Make sure we have a ring pixel
if (tmpRingRotated.GetPixel(x, y) != Color.clear)
{
// if the pixel behind the ring pixel is clear, then just copy the data as is
if (Sprite.GetPixel(x, y) == Color.clear)
{
Sprite.SetPixel(x, y, tmpRingRotated.GetPixel(x, y));
}
// if the pixel behind the ring pixel IS NOT clear, then we have to blend the two pixels
// using the ring's alpha for the blend factor
else
{
Color newColor = SS_Utilities.Blend(tmpRingRotated.GetPixel(x, y), Sprite.GetPixel(x, y), tmpRingRotated.GetPixel(x, y).a);
Sprite.SetPixel(x, y, newColor);
}
}
}
// Top (behind planet)
else
{
// no blending here, so just copy the pixel (ignoring pixels that already have a value)
if (Sprite.GetPixel(x, y) == Color.clear)
{
Sprite.SetPixel(x, y, tmpRingRotated.GetPixel(x, y));
}
}
}
}
}
// Atmosphere and Shadows depend on ring
for (int y = 0; y < Height; y++)
{
for (int x = 0; x < Width; x++)
{
// Get distance of current point to the center of the sprite
float dist = Vector2.Distance(new Vector2(x, y), Sprite.Center.ToVector2);
// Create outer atmosphere
if (atmosphere)
{
Color currentPixel = Sprite.GetPixel(x, y);
Color atmosphereColor = gradientColors[0];
atmosphereColor.a = 1f;
if (dist < (radius / 2) + atmosphereThickness && dist > (radius / 2))
{
float d = Mathf.Abs(dist - (radius / 2));
atmosphereColor.a = (atmosphereThickness - d) / atmosphereThickness;
if (currentPixel == Color.clear)
{
Sprite.SetPixel(x, y, atmosphereColor);
}
else
{
Color newColor = SS_Utilities.Blend(atmosphereColor, Sprite.GetPixel(x, y), atmosphereColor.a);
Sprite.SetPixel(x, y, newColor);
}
}
}
// Shadow
float lightDistance = Vector2.Distance(new Vector2(x, y), lightPosition);
lightDistance = 1.15f - SS_Utilities.Normalize(lightDistance, 0, Height);
if (lightDistance < 0.025f)
{
lightDistance = 0.025f;
}
Color lightingColor = Sprite.GetPixel(x, y);
lightingColor.r *= lightDistance;
lightingColor.g *= lightDistance;
lightingColor.b *= lightDistance;
Sprite.SetPixel(x, y, lightingColor);
// City lights
if (city)
{
if (dist <= (radius / 2))
{
float pixelNoise = (float)noise.GetValue(x, y, 0);
pixelNoise = (pixelNoise + 1.0f) * 0.5f;
pixelNoise = Mathf.Clamp(pixelNoise, 0f, 1f);
if (Sprite.GetPixel(x, y).grayscale < 0.025f)
{
// Find land edges
if (pixelNoise > settleLevel && pixelNoise < settleLevel + 0.05f)
{
if (random.Range(0f, 1f) > cityDensity)
{
// I don't know - i just wrotes numbers beside some colors and hoped for the best.
// Hurray for laziness!
Color newColor = (Color.white * 0.65f + Color.yellow * 0.85f) * 0.8f;
newColor.a = 1;
// Blend the city light with the ring if there is one
Color ringColor = tmpRingRotated.GetPixel(x, y);
if (ring && ringColor != Color.clear)
{
newColor = SS_Utilities.Blend(newColor, ringColor, ringColor.a);
}
Sprite.SetPixel(x, y, newColor);
}
}
}
}
}
}
}
}