private void CreateWeapon(SS_Texture targetTexture, SS_Point offset, Color baseColor)
{
// Temporary texture
SS_Texture tmpTexture = new SS_Texture(Size, Size, Color.clear);
// Keeping the weapons very simple for now
// Just draw 4 layers of lines to create the weapon shape (rectangle)
for (int y = offset.y - 2; y < offset.y + 2; y++)
{
int xEnd = offset.x + 8;
if (xEnd > Size - 1)
{
xEnd = Size - 1;
}
SS_Drawing.Line(tmpTexture, offset.x, y, xEnd, y, baseColor);
}
// Create Weapon Points
WeaponPoint.Add(new SS_Point(offset.x + 8, offset.y));
SS_Drawing.Outline(tmpTexture, SS_StellarSprite.OutlineColor);
//Texturize but dont shade (more vibrant)
if (!DebugDrawing)
{
Texturize(tmpTexture, SS_StellarSprite.FillColor, baseColor, false, false);
}
SS_Drawing.MergeColors(targetTexture, tmpTexture, 0, 0);
}
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 Polygon(SS_Texture texture, SS_Point[] points, bool fill, Color outlineColor, Color fillColor)
{
SS_Point p, p2;
// Loop through all SS_Points and draw lines between them except for the last one
for (int i = 0; i < points.Length - 1; i++)
{
p = new SS_Point((short)points[i].x, (short)points[i].y);
p2 = new SS_Point((short)points[i + 1].x, (short)points[i + 1].y);
Line(texture, p.x, p.y, p2.x, p2.y, outlineColor);
}
// Last SS_Point connects to first SS_Point (order is important)
p = new SS_Point((short)points[0].x, (short)points[0].y);
p2 = new SS_Point((short)points[points.Length - 1].x, (short)points[points.Length - 1].y);
Line(texture, p.x, p.y, p2.x, p2.y, outlineColor);
if (fill)
{
SS_Point centroid = SS_Utilities.Centroid(points);
FloodFillArea(texture, centroid, fillColor);
}
}
public static void LineThick(SS_Texture texture, SS_Point start, SS_Point end, int width, Color outlineColor, Color fillColor)
{
SS_Texture tmpTexture = new SS_Texture(texture.Width, texture.Height, Color.clear);
SS_Point[] points = new SS_Point[4];
float angle = Mathf.Atan2(end.y - start.y, end.x - start.x) * Mathf.Rad2Deg;
points[0] = new SS_Point(
(int)(start.x + Mathf.Cos((angle - 90f) * Mathf.Deg2Rad) * (width / 2)),
(int)(start.y + Mathf.Sin((angle - 90f) * Mathf.Deg2Rad) * (width / 2)));
points[1] = new SS_Point(
(int)(start.x + Mathf.Cos((angle + 90f) * Mathf.Deg2Rad) * (width / 2)),
(int)(start.y + Mathf.Sin((angle + 90f) * Mathf.Deg2Rad) * (width / 2)));
points[2] = new SS_Point(
(int)(end.x + Mathf.Cos((angle + 90f) * Mathf.Deg2Rad) * (width / 2)),
(int)(end.y + Mathf.Sin((angle + 90f) * Mathf.Deg2Rad) * (width / 2)));
points[3] = new SS_Point(
(int)(end.x + Mathf.Cos((angle - 90f) * Mathf.Deg2Rad) * (width / 2)),
(int)(end.y + Mathf.Sin((angle - 90f) * Mathf.Deg2Rad) * (width / 2)));
LineStripClosed(tmpTexture, points, outlineColor);
FloodFillArea(tmpTexture, SS_Utilities.Centroid(points), fillColor);
MergeColors(texture, tmpTexture, 0, 0);
}
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);
}
}
}
private void CreateCockpit(SS_Texture targetTexture, Color baseColor)
{
// Temporary texture
SS_Texture tmpTexture = new SS_Texture(Size, Size, Color.clear);
// 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(0.1, 2, 0.5, 8, Seed, QualityMode.Medium);
// Calculated step points
int step = 2;
int xStart = Sprite.Center.x + (BodyLength / 2) - (BodyLength / 4) - 2;
for (int xCnt = 0; xCnt <= (BodyLength / 4); 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 = xStart + xCnt;
int y = (int)(noise * 4);
topPoints.Add(new SS_Point(x, Sprite.Center.y + 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 (one side only, the other will be mirrored)
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, new SS_Point(xStart + 1, Sprite.Center.y), SS_StellarSprite.FillColor);
// Texturize and shade
if (!DebugDrawing)
{
Texturize(tmpTexture, SS_StellarSprite.FillColor, baseColor, false, true);
SS_StellarSprite.ShadeEdge(tmpTexture);
}
SS_Drawing.MergeColors(targetTexture, tmpTexture, 0, 0);
}
public static SS_Point Scale(SS_Point p, SS_Point center, float scaleX, float scaleY)
{
SS_Point scaledPoint = new SS_Point();
int cX = ((center.x + p.x) / 2);
int cY = ((center.y + p.y) / 2);
scaledPoint.x = cX + (int)((p.x - cX) * scaleX);
scaledPoint.y = cY + (int)((p.y - cY) * scaleY);
return(scaledPoint);
}
public static void LineStrip(SS_Texture texture, SS_Point[] SS_Points, Color color)
{
SS_Point p, p2;
// Loop through all SS_Points and draw lines between them except for the last one
for (int i = 0; i < SS_Points.Length - 1; i++)
{
p = new SS_Point((short)SS_Points[i].x, (short)SS_Points[i].y);
p2 = new SS_Point((short)SS_Points[i + 1].x, (short)SS_Points[i + 1].y);
Line(texture, p.x, p.y, p2.x, p2.y, color);
}
}
void CreatePods(int count, int pW, int pH, int resolution, int distanceFromCenter, double scale, Color baseColor)
{
SS_Texture tmpTexture = new SS_Texture(Size, Size, Color.clear);
int step = 360 / count;
// Setup pod positions
List <SS_Point> pods = new List <SS_Point>();
for (int a = 0; a < 359; a += step)
{
int x = Sprite.Center.x + (int)(Mathf.Cos(a * Mathf.Deg2Rad) * distanceFromCenter);
int y = Sprite.Center.y + (int)(Mathf.Sin(a * Mathf.Deg2Rad) * distanceFromCenter);
pods.Add(new SS_Point(x, y));
}
// Draw pods
for (int i = 0; i < pods.Count; i++)
{
SS_Point[] positions = new SS_Point[resolution + 1];
// angle from
float angleToStation = Mathf.Atan2(pods[i].y - Sprite.Center.x, pods[i].x - Sprite.Center.x) * Mathf.Rad2Deg;
angleToStation += 90;
for (int j = 0; j <= resolution; j++)
{
// Angle from pod Sprite.Center
float angleToPod = (float)j / (float)resolution * 2.0f * Mathf.PI;
// Set the original pod point
float x = pods[i].x + ((short)((pW * scale) * Mathf.Cos(angleToPod)));
float y = pods[i].y + ((short)((pH * scale) * Mathf.Sin(angleToPod)));
// rotate the point based on it's angle from the Sprite.Center of the pod
float xRotated = pods[i].x + (x - pods[i].x) * Mathf.Cos(angleToStation * Mathf.Deg2Rad) - (y - pods[i].y) * Mathf.Sin(angleToStation * Mathf.Deg2Rad);
float yRotated = pods[i].y + (x - pods[i].x) * Mathf.Sin(angleToStation * Mathf.Deg2Rad) + (y - pods[i].y) * Mathf.Cos(angleToStation * Mathf.Deg2Rad);
positions[j] = new SS_Point((int)xRotated, (int)yRotated);
}
SS_Drawing.PolygonFill(tmpTexture, positions, SS_StellarSprite.OutlineColor, SS_StellarSprite.FillColor);
}
Texturize(tmpTexture, SS_StellarSprite.FillColor, baseColor, false, true);
SS_StellarSprite.ShadeEdge(tmpTexture);
SS_StellarSprite.Mirror(tmpTexture, SS_Mirror.TopRight);
SS_Drawing.MergeColors(Sprite, tmpTexture, 0, 0);
}
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++;
}
}
}
private static void Ellipse(SS_Texture texture, int x, int y, int rW, int rH, int resolution, bool fill, Color colorOutline, Color colorFill)
{
SS_Point[] positions = new SS_Point[resolution + 1];
for (int i = 0; i <= resolution; i++)
{
float angle = (float)i / (float)resolution * 2.0f * Mathf.PI;
positions[i] = new SS_Point(x + ((short)(rW * Mathf.Cos(angle))), y + ((short)(rH * Mathf.Sin(angle))));
}
Polygon(texture, positions, colorOutline);
if (fill)
{
FloodFillArea(texture, new SS_Point(x, y), colorFill);
}
}
public static SS_Point Rotate(SS_Point p, int cx, int cy, float angle)
{
float s = Mathf.Sin(angle * Mathf.Deg2Rad);
float c = Mathf.Cos(angle * Mathf.Deg2Rad);
// translate point back to origin:
p.x -= cx;
p.y -= cy;
// rotate point
float rotatedX = p.x * c - p.y * s;
float rotatedY = p.x * s + p.y * c;
// translate point back:
p.x = (int)rotatedX + cx;
p.y = (int)rotatedY + cy;
return(p);
}
private void CreateEngine(SS_Texture targetTexture, int count)
{
// Temporary texture
SS_Texture tmpTexture = new SS_Texture(Size, Size, Color.clear);
// Noise generator
Perlin perlin = new Perlin(0.1, 2, 0.5, 8, Seed, QualityMode.Medium);
int yStep = Size / (1 + count);
for (int i = 1; i <= count; i++)
{
// Data points for body edge
List <SS_Point> topPoints = new List <SS_Point>();
List <SS_Point> bottomPoints = new List <SS_Point>();
// Calculated step points
int step = 2;
int xStart = (Size / 2) - (BodyLength / 2);
for (int xCnt = 0; xCnt <= 16; 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 = xStart + xCnt;
int y = (int)(noise * 4);
int mod = 0;
if (count >= 4)
{
mod = 2;
}
topPoints.Add(new SS_Point(x, i * yStep + y + mod));
bottomPoints.Add(new SS_Point(x, i * yStep - y - 1 + mod));
}
// Draw the body outline (one side only, the other will be mirrored)
SS_Drawing.LineStrip(tmpTexture, topPoints.ToArray(), SS_StellarSprite.FillColor);
SS_Drawing.LineStrip(tmpTexture, bottomPoints.ToArray(), SS_StellarSprite.FillColor);
// Connect both sizes of lines
SS_Drawing.Line(tmpTexture, topPoints[0].x, topPoints[0].y,
bottomPoints[0].x,
bottomPoints[0].y,
SS_StellarSprite.FillColor);
SS_Drawing.Line(tmpTexture, topPoints[topPoints.Count - 1].x, topPoints[topPoints.Count - 1].y,
bottomPoints[bottomPoints.Count - 1].x,
bottomPoints[bottomPoints.Count - 1].y,
SS_StellarSprite.FillColor);
SS_Point centroid = new SS_Point(xStart + 2, i * yStep + 1);
// Fill with magenta
SS_Drawing.FloodFillArea(tmpTexture, centroid, SS_StellarSprite.FillColor);
// Create Exhaust Points
ExhaustPoint.Add(new SS_Point(topPoints[0].x, bottomPoints[0].y + ((topPoints[0].y - bottomPoints[0].y) / 2)));
}
// Draw a bar connecting all the engines (no floaters)
if (count > 1)
{
int top = (Size / 2) + ((count * 8) / 2) + 1;
int bottom = (Size / 2) - ((count * 8) / 2) - 1;
SS_Drawing.Line(tmpTexture, (Size / 2) - (BodyLength / 2) + 10, bottom, (Size / 2) - (BodyLength / 2) + 10, top, SS_StellarSprite.FillColor);
SS_Drawing.Line(tmpTexture, (Size / 2) - (BodyLength / 2) + 11, bottom, (Size / 2) - (BodyLength / 2) + 11, top, SS_StellarSprite.FillColor);
SS_Drawing.Line(tmpTexture, (Size / 2) - (BodyLength / 2) + 12, bottom, (Size / 2) - (BodyLength / 2) + 12, top, SS_StellarSprite.FillColor);
}
// Outline engines
SS_Drawing.Outline(tmpTexture, SS_StellarSprite.OutlineColor);
// Texturize and shade
if (!DebugDrawing)
{
Texturize(tmpTexture, SS_StellarSprite.FillColor, ColorEngine, false, true);
SS_StellarSprite.ShadeEdge(tmpTexture);
}
SS_Drawing.MergeColors(targetTexture, tmpTexture, 0, 0);
}
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);
}
}
}
}
}
}
}
}
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);
}
}
void CreateRing(float scale, int sectionsPerQuarter, bool details, Color detailColor, bool lights)
{
// Only draws top right quarter, the rest is mirrored
List <SS_Point> DetailPoints = new List <SS_Point>();
SS_Texture tmpTexture = new SS_Texture(Size, Size, Color.clear);
int innerRadius = (int)((Size / 8) * scale);
int outerRadius = (int)(((Size / 2) - 4) * scale);
List <SS_Point> innerPoints = new List <SS_Point>();
List <SS_Point> outerPoints = new List <SS_Point>();
int step = 90 / sectionsPerQuarter;
for (int a = 0; a <= 90; a += step)
{
int innerX = Sprite.Center.x + (int)(Mathf.Cos(a * Mathf.Deg2Rad) * innerRadius);
int innerY = Sprite.Center.y + (int)(Mathf.Sin(a * Mathf.Deg2Rad) * innerRadius);
innerPoints.Add(new SS_Point(innerX, innerY));
int outerX = Sprite.Center.x + (int)(Mathf.Cos(a * Mathf.Deg2Rad) * outerRadius);
int outerY = Sprite.Center.y + (int)(Mathf.Sin(a * Mathf.Deg2Rad) * outerRadius);
outerPoints.Add(new SS_Point(outerX, outerY));
if (lights)
{
LightPoints.Add(new SS_Point(outerX, outerY));
LightPoints.Add(new SS_Point(Size - outerX, outerY));
LightPoints.Add(new SS_Point(Size - outerX, Size - outerY));
LightPoints.Add(new SS_Point(outerX, Size - outerY));
}
}
// Determine centroids (detail points) for each ring section
for (int i = 0; i < innerPoints.Count - 1; i++)
{
SS_Point[] points = new SS_Point[4];
int j = i;
int j2 = i + 1;
if (i == innerPoints.Count - 1)
{
j2 = 0;
}
points[0] = innerPoints[j];
points[1] = outerPoints[j];
points[2] = outerPoints[j2];
points[3] = innerPoints[j2];
SS_Point centroid = SS_Utilities.Centroid(points);
if (random.NextBool())
{
DetailPoints.Add(centroid);
}
}
List <SS_Point> ringPoints = new List <SS_Point>();
for (int i = 0; i < innerPoints.Count; i++)
{
ringPoints.Add(innerPoints[i]);
}
for (int i = outerPoints.Count - 1; i >= 0; i--)
{
ringPoints.Add(outerPoints[i]);
}
SS_Drawing.PolygonFill(tmpTexture, ringPoints.ToArray(), SS_StellarSprite.OutlineColor, SS_StellarSprite.FillColor);
// Add borders between sectons
float colorVal = 0;// random.Range(0.25f, 1f);
Color sectionBorder = new Color(colorVal, colorVal, colorVal);
for (int i = 0; i < innerPoints.Count; i++)
{
SS_Drawing.Line(tmpTexture, innerPoints[i].x, innerPoints[i].y, outerPoints[i].x, outerPoints[i].y, sectionBorder);
}
if (details)
{
for (int i = 0; i < DetailPoints.Count; i++)
{
SS_Drawing.EllipseFill(tmpTexture, DetailPoints[i].x, DetailPoints[i].y, 8, 8, 12, SS_StellarSprite.OutlineColor, detailColor);
}
}
// Texture the section
Texturize(tmpTexture, SS_StellarSprite.FillColor, Color.grey, false, true);
SS_StellarSprite.ShadeEdge(tmpTexture);
SS_StellarSprite.Mirror(tmpTexture, SS_Mirror.TopRight);
SS_Drawing.MergeColors(Sprite, 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);
}
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 static int Distance(SS_Point p1, SS_Point p2)
{
return((int)Mathf.Sqrt(Mathf.Pow((p2.x - p1.x), 2) + Mathf.Pow((p2.y - p1.y), 2)));
}
public static void FloodFillArea(SS_Texture texture, SS_Point pt, Color aColor)
{
int w = texture.Width;
int h = texture.Height;
Color[] colors = texture.GetPixels();
Color refCol = colors[pt.x + pt.y * w];
Queue <SS_Point> nodes = new Queue <SS_Point>();
nodes.Enqueue(new SS_Point(pt.x, pt.y));
while (nodes.Count > 0)
{
SS_Point current = nodes.Dequeue();
for (int i = current.x; i < w; i++)
{
Color C = colors[i + current.y * w];
if (C != refCol || C == aColor)
{
break;
}
colors[i + current.y * w] = aColor;
if (current.y + 1 < h)
{
C = colors[i + current.y * w + w];
if (C == refCol && C != aColor)
{
nodes.Enqueue(new SS_Point(i, current.y + 1));
}
}
if (current.y - 1 >= 0)
{
C = colors[i + current.y * w - w];
if (C == refCol && C != aColor)
{
nodes.Enqueue(new SS_Point(i, current.y - 1));
}
}
}
for (int i = current.x - 1; i >= 0; i--)
{
Color C = colors[i + current.y * w];
if (C != refCol || C == aColor)
{
break;
}
colors[i + current.y * w] = aColor;
if (current.y + 1 < h)
{
C = colors[i + current.y * w + w];
if (C == refCol && C != aColor)
{
nodes.Enqueue(new SS_Point(i, current.y + 1));
}
}
if (current.y - 1 >= 0)
{
C = colors[i + current.y * w - w];
if (C == refCol && C != aColor)
{
nodes.Enqueue(new SS_Point(i, current.y - 1));
}
}
}
}
texture.SetPixels(colors);
}