private static HeightRender LoadRender(Stream stream)
{
byte[] buffer = new byte[4];
stream.Read(buffer, 0, sizeof(int));
int width = BitConverter.ToInt32(buffer, 0);
stream.Read(buffer, 0, sizeof(int));
int height = BitConverter.ToInt32(buffer, 0);
stream.Read(buffer, 0, sizeof(bool));
bool clamp = BitConverter.ToBoolean(buffer, 0);
stream.Read(buffer, 0, sizeof(float));
float clampMin = BitConverter.ToSingle(buffer, 0);
stream.Read(buffer, 0, sizeof(float));
float clampMax = BitConverter.ToSingle(buffer, 0);
stream.Read(buffer, 0, sizeof(bool));
bool wrapX = BitConverter.ToBoolean(buffer, 0);
stream.Read(buffer, 0, sizeof(bool));
bool wrapY = BitConverter.ToBoolean(buffer, 0);
HeightRender render = new HeightRender(width, height, clamp, clampMin, clampMax, wrapX, wrapY);
for (int i = 0; i < render.HeightField.Data.Length; i++)
{
stream.Read(buffer, 0, sizeof(float));
render.HeightField.Data[i] = BitConverter.ToSingle(buffer, 0);
}
return(render);
}
public RenderDialog(string renderName, Form owner)
{
Owner = owner;
if (renderName != null && renderName.Length > 0)
{
CenterToParent();
InitializeComponent();
Text = "Render - " + renderName;
if (Document.ContainsRender(this.renderName = renderName) && (render = Document.GetRender(renderName)) != null)
{
widthBox.Value = render.HeightField.Width;
widthBox.Enabled = false;
heightBox.Value = render.HeightField.Height;
heightBox.Enabled = false;
clampBox.Checked = render.HeightField.Clamp;
clampMinBox.Value = (decimal)render.HeightField.ClampMin;
clampMaxBox.Value = (decimal)render.HeightField.ClampMax;
wrapXBox.Checked = render.HeightField.WrapX;
wrapYBox.Checked = render.HeightField.WrapY;
}
else
{
widthBox.Enabled = true;
heightBox.Enabled = true;
}
}
else
{
throw new Exception("The supplied name was empty or null.");
}
}
private void compileButton_Click(object sender, EventArgs e)
{
script.Source = scriptBox.Text;
HeightRender.Effect effect;
string errors;
switch (HeightRender.CompileEffect(script, out effect, out errors))
{
case HeightRender.EffectCompileResult.WrongApplySignature:
MessageBox.Show("The method signature for the \"Apply\" function should be:\n\nPhoton Apply(int x, int y, Photon color, HeightField heightField)", "Script Error");
break;
case HeightRender.EffectCompileResult.MissingApplyFunction:
MessageBox.Show("The \"Apply\" function is missing from your script.", "Script Error");
break;
case HeightRender.EffectCompileResult.SyntaxError:
MessageBox.Show("There was a compilation error in your script:\r\n" + errors, "Script Error");
break;
case HeightRender.EffectCompileResult.Success:
Document.SetEffect(effectName, effect, script);
break;
}
}
public RenderDialog(string renderName)
{
CenterToParent();
InitializeComponent();
Text = "Render - " + renderName;
if (Document.ContainsRender(this.renderName = renderName))
{
render = Document.GetRender(renderName);
widthBox.Value = render.HeightField.Width;
widthBox.Enabled = false;
heightBox.Value = render.HeightField.Height;
heightBox.Enabled = false;
clampBox.Checked = render.HeightField.Clamp;
clampMinBox.Value = (decimal)render.HeightField.ClampMin;
clampMaxBox.Value = (decimal)render.HeightField.ClampMax;
wrapXBox.Checked = render.HeightField.WrapX;
wrapYBox.Checked = render.HeightField.WrapY;
}
else
{
widthBox.Enabled = true;
heightBox.Enabled = true;
}
}
private void compileButton_Click(object sender, EventArgs e)
{
script.Source = scriptBox.Text;
HeightRender.Generator generator;
string errors;
switch (HeightRender.CompileGenerator(script, out generator, out errors))
{
case HeightRender.GeneratorCompileResult.WrongGenerateSignature:
MessageBox.Show("The method signature for the \"Generate\" function should be:\n\nfloat Generate(int x, int y, HeightField heightField)", "Script Error");
break;
case HeightRender.GeneratorCompileResult.MissingGenerateFunction:
MessageBox.Show("The \"Generate\" function is missing from your script.", "Script Error");
break;
case HeightRender.GeneratorCompileResult.SyntaxError:
MessageBox.Show("There was a compilation error in your script:\r\n" + errors, "Script Error");
break;
case HeightRender.GeneratorCompileResult.Success:
Document.SetGenerator(generatorName, generator, script);
break;
}
}
private void Document_RenderSet(string name, HeightRender render)
{
renderNameBox.Items.Clear();
foreach (string s in Document.RenderNames)
{
renderNameBox.Items.Add(s);
}
}
private void Document_RenderSet(string name, HeightRender render)
{
selectedRenderBox.Items.Clear();
foreach (string s in Document.RenderNames)
{
selectedRenderBox.Items.Add(s);
}
selectedRenderBox.SelectedItem = Document.SelectedRender;
}
private void Document_RenderRemoved(string name, HeightRender render)
{
renderNameBox.Items.Clear();
selectedRenderBox.Items.Clear();
foreach (string s in Document.RenderNames)
{
renderNameBox.Items.Add(s);
selectedRenderBox.Items.Add(s);
}
selectedRenderBox.Text = Document.SelectedRenderName;
}
private static void SaveRender(Stream stream, HeightRender render)
{
stream.Write(BitConverter.GetBytes(render.HeightField.Width), 0, sizeof(int));
stream.Write(BitConverter.GetBytes(render.HeightField.Height), 0, sizeof(int));
stream.Write(BitConverter.GetBytes(render.HeightField.Clamp), 0, sizeof(bool));
stream.Write(BitConverter.GetBytes(render.HeightField.ClampMin), 0, sizeof(float));
stream.Write(BitConverter.GetBytes(render.HeightField.ClampMax), 0, sizeof(float));
stream.Write(BitConverter.GetBytes(render.HeightField.WrapX), 0, sizeof(bool));
stream.Write(BitConverter.GetBytes(render.HeightField.WrapY), 0, sizeof(bool));
for (int i = 0; i < render.HeightField.Data.Length; i++)
{
stream.Write(BitConverter.GetBytes(render.HeightField.Data[i]), 0, sizeof(float));
}
}
private void Redo()
{
if (redoQueue.Count > 0)
{
BrushAction redoAction = redoQueue.Dequeue();
//Set all of the values in the affected area to what they were before the undo action took place.
HeightRender render = Document.SelectedRender;
BrushAction opposite = new BrushAction(redoAction.Selection, redoAction.Data);
for (int x = redoAction.Selection.Left; x < redoAction.Selection.Right; x++)
{
for (int y = redoAction.Selection.Top; y < redoAction.Selection.Bottom; y++)
{
float oldSample;
if (render.HeightField.TryGetHeight(x, y, out oldSample))
{
int i = (y - redoAction.Selection.Top) * redoAction.Selection.Width + (x - redoAction.Selection.Left);
render.HeightField[x, y] = redoAction.Data[i];
opposite.Data[i] = oldSample;
}
}
}
PhotonGradient gradient = Document.SelectedGradient;
IEnumerable <HeightRender.Effect> effects;
if (paintEffectsBox.Checked)
{
effects = Document.SelectedEffects;
}
else
{
effects = null; //Don't worry about effects if we're not painting with them.
}
//Update each section of the selection when wrapping has been accounted for.
foreach (FieldSelection fs in redoAction.Selection.SubSelectionsOf(render.HeightField))
{
//Omit any parts that have a width or height of zero.
if (!fs.IsEmpty)
{
//Update the corresponding part of the render.
render.UpdateArea(fs.Left, fs.Top, fs.Width, fs.Height, gradient, effects);
//Invalidate the corresponding part of the image panel so that it redraws itself in realtime.
Point start = Numerics.ToPoint(renderArea.ImageToClient(new Vector2(fs.Left, fs.Top)));
Point end = Numerics.ToPoint(renderArea.ImageToClient(new Vector2(fs.Right, fs.Bottom)));
renderArea.Invalidate(new Rectangle(Numerics.Max(start.X, 0), Numerics.Max(start.Y, 0), Numerics.Max(end.X, 0), Numerics.Max(end.Y, 0)));
}
}
undoQueue.Enqueue(opposite);
}
}
//Setting
public static bool SetRender(string name, HeightRender render)
{
if (name != null && name.Length > 0)
{
renders[name] = render;
if (renderSet != null)
{
renderSet(name, render);
}
return(true);
}
else
{
return(false);
}
}
private static GeneratorScript LoadGenerator(Stream stream)
{
CSScript script = new CSScript();
script.Source = LoadText(stream);
HeightRender.Generator generator;
string errors;
HeightRender.CompileGenerator(script, out generator, out errors);
GeneratorScript gs = new GeneratorScript()
{
generator = generator, script = script
};
return(gs);
}
private static EffectScript LoadEffect(Stream stream)
{
CSScript script = new CSScript();
script.Source = LoadText(stream);
HeightRender.Effect effect;
string errors;
HeightRender.CompileEffect(script, out effect, out errors);
EffectScript es = new EffectScript()
{
effect = effect, script = script
};
return(es);
}
//Loading
public static IOEvaluation Load(string path)
{
Clear();
if (File.Exists(path))
{
FileStream stream = null;
try
{
stream = new FileStream(path, FileMode.Open);
}
catch
{
return(IOEvaluation.CannotOpenStream);
}
try
{
IOBlockIdentifier block;
string blockName;
byte[] blockBuff = new byte[sizeof(int)];
stream.Read(blockBuff, 0, sizeof(int));
block = (IOBlockIdentifier)BitConverter.ToInt32(blockBuff, 0);
if (block == IOBlockIdentifier.FileBegin)
{
do
{
if (stream.Position < stream.Length)
{
stream.Read(blockBuff, 0, sizeof(int));
block = (IOBlockIdentifier)BitConverter.ToInt32(blockBuff, 0);
switch (block)
{
case IOBlockIdentifier.FileEnd:
break;
case IOBlockIdentifier.Brush:
blockName = LoadText(stream);
BrushScript bs = LoadBrush(stream);
SetBrush(blockName, bs.brush, bs.script);
break;
case IOBlockIdentifier.Effect:
blockName = LoadText(stream);
EffectScript es = LoadEffect(stream);
SetEffect(blockName, es.effect, es.script);
break;
case IOBlockIdentifier.Gradient:
blockName = LoadText(stream);
PhotonGradient gradient = LoadGradient(stream);
SetGradient(blockName, gradient);
break;
case IOBlockIdentifier.Render:
blockName = LoadText(stream);
HeightRender render = LoadRender(stream);
SetRender(blockName, render);
break;
case IOBlockIdentifier.Generator:
blockName = LoadText(stream);
GeneratorScript gs = LoadGenerator(stream);
SetGenerator(blockName, gs.generator, gs.script);
break;
default:
throw new Exception("Encountered a block that couldn't be identified.");
}
}
else
{
throw new Exception("The end of the file was reached before the appropriate 'End of File' flag was found.");
}
}while (block != IOBlockIdentifier.FileEnd);
//Path and Callback
associatedPath = path;
if (loaded != null)
{
loaded(path);
}
return(IOEvaluation.Success);
}
else
{
return(IOEvaluation.ConversionError);
}
}
catch
{
Clear();
return(IOEvaluation.ConversionError);
}
finally
{
stream.Close();
}
}
else
{
associatedPath = path;
return(IOEvaluation.FileDoesNotExist);
}
}
private void Application_Idle(object sender, EventArgs e)
{
Vector2 pointOnRenderArea = Numerics.ToVector(renderArea.PointToClient(Control.MousePosition));
Vector2 pointOnRender = renderArea.ClientToImage(pointOnRenderArea);
if (renderArea.Focused && Document.SelectedRender != null)
{
#region Panning
if (MouseButtons == MouseButtons.Middle)
{
renderArea.ImageOffset += (pointOnRenderArea - lastPointOnRenderArea) / renderArea.ImageScale;
}
#endregion
#region Brush
HeightBrush activeBrush = null;
if (MouseButtons == MouseButtons.Left)
{
activeBrush = Document.LeftBrush;
}
else if (MouseButtons == MouseButtons.Right)
{
activeBrush = Document.RightBrush;
}
if (activeBrush != null)
{
HeightRender render = Document.SelectedRender;
PhotonGradient gradient = Document.SelectedGradient;
IEnumerable <HeightRender.Effect> effects;
if (paintEffectsBox.Checked)
{
effects = Document.SelectedEffects;
}
else
{
effects = null;
}
#region Process Steps
Vector2 brushDelta = lastPointOnRender - pointOnRender;
float strokeLength = (float)brushDelta.Length;
float steps = strokeLength / activeBrush.Precision + 1;
Vector2 brushStep = brushDelta * (1.0f / steps);
for (int i = 0; i < steps; i++)
{
Vector2 brushPosition = pointOnRender + brushStep * i;
#region Process Brush Paint
try
{
FieldSelection brushArea;
activeBrush.Paint(render.HeightField, (int)brushPosition.X, (int)brushPosition.Y, strokeLength, out brushArea);
foreach (FieldSelection fs in brushArea.SubSelectionsOf(render.HeightField))
{
if (!fs.IsEmpty)
{
render.UpdateArea(fs.Left, fs.Top, fs.Width, fs.Height, gradient, effects);
Point start = Numerics.ToPoint(renderArea.ImageToClient(new Vector2(fs.Left, fs.Top)));
Point end = Numerics.ToPoint(renderArea.ImageToClient(new Vector2(fs.Right, fs.Bottom)));
renderArea.Invalidate(new Rectangle(Numerics.Max(start.X, 0), Numerics.Max(start.Y, 0), Numerics.Max(end.X, 0), Numerics.Max(end.Y, 0)));
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "There was a runtime error with your brush script.");
}
#endregion
}
#endregion
}
#endregion
}
lastPointOnRenderArea = pointOnRenderArea;
lastPointOnRender = pointOnRender;
}
private void Application_Idle(object sender, EventArgs e)
{
Vector2 pointOnRenderArea = Numerics.ToVector(renderArea.PointToClient(Control.MousePosition));
Vector2 pointOnRender = renderArea.ClientToImage(pointOnRenderArea);
if (renderArea.Focused && Document.SelectedRender != null)
{
#region Undo
if (undoing)
{
Undo();
}
#endregion
#region Redo
if (redoing)
{
Redo();
}
#endregion
#region Panning
if (MouseButtons == MouseButtons.Middle)
{
renderArea.ImageOffset += (pointOnRenderArea - lastPointOnRenderArea) / renderArea.ImageScale;
}
#endregion
#region Brush
//Select the appropriate brush based on the active mouse buttons.
HeightBrush activeBrush = null;
if (MouseButtons == MouseButtons.Left)
{
activeBrush = Document.LeftBrush;
}
else if (MouseButtons == MouseButtons.Right)
{
activeBrush = Document.RightBrush;
}
//If a mouse button was in use; paint.
if (activeBrush != null)
{
HeightRender render = Document.SelectedRender;
PhotonGradient gradient = Document.SelectedGradient;
IEnumerable <HeightRender.Effect> effects;
if (paintEffectsBox.Checked)
{
effects = Document.SelectedEffects;
}
else
{
effects = null; //If we aren't painting with effects then we don't care about supplying them to the update.
}
#region Process Steps
//The brush stroke is broken up into steps that are each a given length (in pixels). The length is denoted by the brush precision.
Vector2 brushDelta = lastPointOnRender - pointOnRender;
float strokeLength = (float)brushDelta.Length;
float steps = strokeLength / activeBrush.Precision + 1;
Vector2 brushStep = brushDelta * (1.0f / steps);
for (int i = (int)steps - 1; i >= 0; i--) //Work backwards so the undo and redo functionality makes sense.
{
//Calculate the current brush position, based on the starting point, the step vector and the current step index.
Vector2 brushPosition = pointOnRender + brushStep * i;
#region Process Brush Paint
try
{
//Perform the actual brush operation and capture the selected area it affects.
FieldSelection brushArea;
float[] previousData;
activeBrush.Paint(render.HeightField, (int)brushPosition.X, (int)brushPosition.Y, strokeLength, out brushArea, out previousData);
//Add this paint event to the undo queue.
undoQueue.Enqueue(new BrushAction(brushArea, previousData));
redoQueue.Clear();
//Break up the brush area into multiple parts if they intersect the edges of the image.
foreach (FieldSelection fs in brushArea.SubSelectionsOf(render.HeightField))
{
//Omit any parts that have a width or height of zero.
if (!fs.IsEmpty)
{
//Update the corresponding part of the render.
render.UpdateArea(fs.Left, fs.Top, fs.Width, fs.Height, gradient, effects);
//Invalidate the corresponding part of the image panel so that it redraws itself in realtime.
Point start = Numerics.ToPoint(renderArea.ImageToClient(new Vector2(fs.Left, fs.Top)));
Point end = Numerics.ToPoint(renderArea.ImageToClient(new Vector2(fs.Right, fs.Bottom)));
renderArea.Invalidate(new Rectangle(Numerics.Max(start.X, 0), Numerics.Max(start.Y, 0), Numerics.Max(end.X, 0), Numerics.Max(end.Y, 0)));
}
}
}
catch (Exception ex)
{
//This usually happens when activeBrush.Paint is called, because it executes the user's brush script. Shows the script error message as a message box.
MessageBox.Show(ex.Message, "There was a runtime error with your brush script.");
}
#endregion
}
#endregion
}
#endregion
}
else
{
undoing = redoing = false;
}
lastPointOnRenderArea = pointOnRenderArea;
lastPointOnRender = pointOnRender;
}
//Loading
public static bool Load(string path)
{
Clear();
if (File.Exists(path))
{
FileStream stream = new FileStream(path, FileMode.Open);
try
{
byte[] countBuf = new byte[4];
int count;
//Load Renders
stream.Read(countBuf, 0, sizeof(int));
count = BitConverter.ToInt32(countBuf, 0);
for (int i = 0; i < count; i++)
{
string name = LoadText(stream);
HeightRender render = LoadRender(stream);
SetRender(name, render);
}
//Load Gradients
stream.Read(countBuf, 0, sizeof(int));
count = BitConverter.ToInt32(countBuf, 0);
for (int i = 0; i < count; i++)
{
string name = LoadText(stream);
PhotonGradient gradient = LoadGradient(stream);
SetGradient(name, gradient);
}
//Load Effects
stream.Read(countBuf, 0, sizeof(int));
count = BitConverter.ToInt32(countBuf, 0);
for (int i = 0; i < count; i++)
{
string name = LoadText(stream);
EffectScript es = LoadEffect(stream);
SetEffect(name, es.effect, es.script);
}
//Load Brushes
stream.Read(countBuf, 0, sizeof(int));
count = BitConverter.ToInt32(countBuf, 0);
for (int i = 0; i < count; i++)
{
string name = LoadText(stream);
BrushScript bs = LoadBrush(stream);
SetBrush(name, bs.brush, bs.script);
}
//Path and Callback
associatedPath = path;
if (loaded != null)
{
loaded(path);
}
return(true);
}
catch
{
associatedPath = null;
return(false);
}
finally
{
stream.Close();
}
}
else
{
associatedPath = path;
return(false);
}
}
