private void confirmButton_Click(object sender, EventArgs e)
{
//Set the image to the project's main input
if (!forMask)
{
Form1.currentOpenProject.SetFirstHeightmap(image);
}
else
{
Form1.currentOpenProject.CreateMask(image.width, image.height);
int[,] mask = Form1.currentOpenProject.GetMask();
Bitmap bit = image.ToBitmap();
for (int i = 0; i < bit.Width; i++)
{
for (int j = 0; j < bit.Height; j++)
{
Color pixel = bit.GetPixel(i, j);
if (pixel == Heightmap.ValueToColor(0))
{
mask[i, j] = 0;
}
else
{
mask[i, j] = 1;
}
}
}
}
this.Close();
}
//Events
private void Canvas_Load(object sender, EventArgs e)
{
//Get the image dimensions
WidthHeightDialog dialog = new WidthHeightDialog();
dialog.ShowDialog();
//Create the image and picbox
image = new Heightmap(dialog.width, dialog.height);
tempPicBox.Image = image.ToBitmap();
//Enable the timer
tickTimer.Enabled = true;
//Set default brush params
brushSpeedBox.Minimum = (decimal)MIN_BRUSH_SPEED;
brushSpeedBox.Maximum = (decimal)MAX_BRUSH_SPEED;
brushSize = DEFAULT_SIZE;
brushSpeed = DEFAULT_SPEED;
//Add all brush types
AddBrushType("Circle", new CircleBrush()).Checked = true;
AddBrushType("Square", new SquareBrush());
//Add all tools
AddTool("Paint Brush", PaintBrushTool).Checked = true;
AddTool("Eraser", EraserTool);
}
public ImageFileNode(NodeMap map, Heightmap heightmap) : base(map)
{
//Creates one from a pre-existing heightmap.
image = heightmap.ToBitmap();
this.heightmap = heightmap;
}
public override void Apply(Heightmap targetHeightmap, Bitmap targetBitmap, int x, int y, double size, double speed, double deltaTime)
{
double radius = size;
//Make a bounding box around the circle
int startX = (int)((double)x - size);
int endX = (int)((double)x + size);
int startY = (int)((double)y - size);
int endY = (int)((double)y + size);
//Make sure the corners are in bounds
startX = Utils.CapBounds(startX, 0, targetHeightmap.width);
endX = Utils.CapBounds(endX, 0, targetHeightmap.width);
startY = Utils.CapBounds(startY, 0, targetHeightmap.height);
endY = Utils.CapBounds(endY, 0, targetHeightmap.height);
//Loop through the bounding box, skipping any pixels that fall outside the circle
int centerX = x;
int centerY = y; //Save x and y, since we're using those variable names in the loop
for (x = startX; x < endX; x++)
{
for (y = startY; y < endY; y++)
{
//Skip this pixel if it's not within the radius
double squaredDist = (x - centerX) * (x - centerX) + (y - centerY) * (y - centerY);
if (squaredDist > radius * radius)
{
continue;
}
//Make it so the speed decreases as it gets further from the center
double distPercent = squaredDist / (radius * radius);
double scaledSpeed = Utils.Lerp(speed, 0, distPercent);
//Change the height at this position
double val = targetHeightmap.GetValue(x, y);
val += scaledSpeed * deltaTime;
//Ensure the value stays within the limits
if (Math.Abs(val) > Heightmap.MAX_HEIGHT)
{
val = Math.Sign(val) * Heightmap.MAX_HEIGHT;
}
//Apply the height change
targetHeightmap.SetValue(x, y, val);
targetBitmap.SetPixel(x, y, Heightmap.ValueToColor(val));
}
} //End of double for loop
} //End of function
private void generateButton_Click(object sender, EventArgs e)
{
//Get the data from the textboxes
int width;
int height;
int seed;
int octave;
double persistence;
double frequency;
double lacunarity;
//Catch any errors with the textboxes
try
{
width = int.Parse(widthBox.Text);
height = int.Parse(heightBox.Text);
seed = int.Parse(seedBox.Text);
octave = int.Parse(OctBox.Text);
Double.TryParse(PersBox.Text, out persistence);
Double.TryParse(LacBox.Text, out lacunarity);
Double.TryParse(FreqBox.Text, out frequency);
}
catch (FormatException err)
{
MessageBox.Show("ERROR: width, height, seed, and octave count must all be integers.\r\nPersistence, lacunarity, and frequency are doubles");
return;
}
catch (OverflowException err)
{
MessageBox.Show("ERROR: One of your values is too long.");
return;
}
//Generate the preview map
previewMap = new Heightmap(width, height);
PerlinNoise noiseGen = new PerlinNoise(seed, octave, frequency, lacunarity, persistence);
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
double value = noiseGen.GetValue((double)x, (double)y) * Heightmap.MAX_HEIGHT;
previewMap.SetValue(x, y, value);
}
}
//Update the preview picture
previewBox.Image = previewMap.ToBitmap();
//Enable the Okay button
OKButton.Enabled = true;
}
public override void Apply(Heightmap targetHeightmap, Bitmap targetBitmap, int x, int y, double size, double speed, double deltaTime)
{
//Make a square around the coordinates
int startX = (int)((double)x - size / 2);
int endX = (int)((double)x + size / 2);
int startY = (int)((double)y - size / 2);
int endY = (int)((double)y + size / 2);
//Make sure the corners of the square are in bounds
startX = Utils.CapBounds(startX, 0, targetHeightmap.width);
endX = Utils.CapBounds(endX, 0, targetHeightmap.width);
startY = Utils.CapBounds(startY, 0, targetHeightmap.height);
endY = Utils.CapBounds(endY, 0, targetHeightmap.height);
//Iterate through the square, applying the logic to it.
for (x = startX; x < endX; x++)
{
for (y = startY; y < endY; y++)
{
//Change the height at this position
double val = targetHeightmap.GetValue(x, y);
val += speed * deltaTime;
//Ensure the value stays within the limits
if (Math.Abs(val) > Heightmap.MAX_HEIGHT)
{
val = Math.Sign(val) * Heightmap.MAX_HEIGHT;
}
//Apply the height change
targetHeightmap.SetValue(x, y, val);
targetBitmap.SetPixel(x, y, Heightmap.ValueToColor(val));
}
}
}
public abstract void Apply(Heightmap targetHeightmap, Bitmap targetBitmap, int x, int y, double size, double speed, double deltaTime);
private void button1_Click(object sender, EventArgs e)
{
//Reset the image
image = new Heightmap(image.width, image.height);
tempPicBox.Image = image.ToBitmap();
}
public ImageFileNode(NodeMap map, String fileName) : base(map)
{
image = new Bitmap(fileName);
heightmap = new Heightmap(image);
}