public Matrix(Vector x, Vector y, Vector z, Vector o)
{
_m11 = x.X; _m12 = x.Y; _m13 = x.Z;
_m21 = y.X; _m22 = y.Y; _m23 = y.Z;
_m31 = z.X; _m32 = z.Y; _m33 = z.Z;
_m41 = o.X; _m42 =o.Y; _m43 = o.Z;
}
public Vector MeasureFont(string text, double maxWidth)
{
Vector dimensions = new Vector();
foreach (char c in text)
{
CharacterData data = _characterData[c];
dimensions.X += data.XAdvance;
dimensions.Y = Math.Max(dimensions.Y, data.Height + data.YOffset);
}
return dimensions;
}
public bool Intersects(Point point)
{
// Change point to a vector
Vector vPoint = new Vector(point.X, point.Y, 0);
Vector vFromCircleToPoint = Position - vPoint;
double distance = vFromCircleToPoint.Length();
if (distance > Radius)
{
return false;
}
return true;
}
public void InitVertexPositions(Vector position, double width, double height)
{
double halfWidth = width / 2;
double halfHeight = height / 2;
// Clockwise creation of two triangles to make a quad.
// TopLeft, TopRight, BottomLeft
_vertexPositions[0] = new Vector(position.X - halfWidth, position.Y + halfHeight, position.Z);
_vertexPositions[1] = new Vector(position.X + halfWidth, position.Y + halfHeight, position.Z);
_vertexPositions[2] = new Vector(position.X - halfWidth, position.Y - halfHeight, position.Z);
// TopRight, BottomRight, BottomLeft
_vertexPositions[3] = new Vector(position.X + halfWidth, position.Y + halfHeight, position.Z);
_vertexPositions[4] = new Vector(position.X + halfWidth, position.Y - halfHeight, position.Z);
_vertexPositions[5] = new Vector(position.X - halfWidth, position.Y - halfHeight, position.Z);
}
public void SetPosition(Vector position)
{
// InitVertexPositions(position, GetWidth(), GetHeight());
Matrix m = new Matrix();
m.SetTranslation(new Vector(_positionX, _positionY, 0));
ApplyMatrix(m.Inverse());
m.SetTranslation(position);
ApplyMatrix(m);
_positionX = position.X;
_positionY = position.Y;
}
public void SetTranslation(Vector translation)
{
_m41 = translation.X;
_m42 = translation.Y;
_m43 = translation.Z;
}
public void SetScale(Vector scale)
{
_m11 = scale.X;
_m22 = scale.Y;
_m33 = scale.Z;
}
public void SetPosition(Vector position)
{
InitVertexPositions(position, GetWidth(), GetHeight());
}
//addition vectors
public Vector Add(Vector r)
{
return new Vector(X + r.X, Y + r.Y, Z + r.Z);
}
//subtraction vector
public Vector Subtract(Vector r)
{
return new Vector(X - r.X, Y - r.Y, Z - r.Z);
}
//determine if character is within a range by normalizing to 1 it can be in range or out of 1 range etc.
public Vector Normalise(Vector v)
{
double r = v.Length();
if (r != 0.0) //division by zero is a no-no!
{
return new Vector(v.X / r, v.Y / r, v.Z / r);
}
else
{
return new Vector(0, 0, 0);
}
}
public bool Equals(Vector v)
{
return (X == v.X) && (Y == v.Y) && (Z == v.Z);
}
//dot product to determine what side of wall and if characters facing each other
public double DotProduct(Vector v)
{
return (v.X * X) + (Y * v.Y) + (Z * v.Z);
}
//find the normal to a plane used to direct an objects movement forwar etc.
public Vector CrossProduct(Vector v)
{
double nx = Y * v.Z - Z * v.Y;
double ny = Z * v.X - X * v.Z;
double nz = X * v.Y - Y * v.X;
return new Vector(nx, ny, nz);
}
public void DrawImmediateModeVertex(Vector position, Color color, Point uvs)
{
Gl.glColor4f(color.Red, color.Green, color.Blue, color.Alpha);
Gl.glTexCoord2f(uvs.X, uvs.Y);
Gl.glVertex3d(position.X, position.Y, position.Z);
}
public Circle(Vector position, double radius)
{
Position = position;
Radius = radius;
}
public Vector GetScale()
{
Vector result = new Vector();
result.X = (new Vector(_m11, _m12, _m13)).Length();
result.Y = (new Vector(_m21, _m22, _m23)).Length();
result.Z = (new Vector(_m31, _m32, _m33)).Length();
return result;
}
public void SetRotate(Vector axis, double angle)
{
double angleSin = Math.Sin(angle);
double angleCos = Math.Cos(angle);
double a = 1.0 - angleCos;
double ax = a * axis.X;
double ay = a * axis.Y;
double az = a * axis.Z;
_m11 = ax * axis.X + angleCos;
_m12 = ax * axis.Y + axis.Z * angleSin;
_m13 = ax * axis.Z - axis.Y * angleSin;
_m21 = ay * axis.X - axis.Z * angleSin;
_m22 = ay * axis.Y + angleCos;
_m23 = ay * axis.Z - axis.X * angleSin;
_m31 = az * axis.X + axis.Y * angleSin;
_m32 = az * axis.Y - axis.X * angleSin;
_m33 = az * axis.Z + angleCos;
}
private void CreateText(double x, double y, double maxWidth)
{
_bitmapText.Clear();
double currentX = x;
double currentY = y;
string[] words = _text.Split(' ');
foreach (string word in words)
{
Vector nextWordLength = _font.MeasureFont(word);
if (maxWidth != -1 && (currentX + nextWordLength.X) > maxWidth)
{
currentX = 0;
currentY += nextWordLength.Y;
}
string wordWithSpace = word + " ";
foreach (char c in wordWithSpace)
{
CharacterSprite sprite = _font.CreateSprite(c);
float xOffset = ((float)sprite.Data.XOffset) / 2;
float yOffset = (((float)sprite.Data.Height) * 0.5f) + ((float)sprite.Data.YOffset);
sprite.Sprite.SetPosition(x + currentX + xOffset, y - currentY - yOffset);
currentX += sprite.Data.XAdvance;
_bitmapText.Add(sprite);
}
}
_dimensions = _font.MeasureFont(_text, _maxWidth);
_dimensions.Y = currentY;
SetColor();
}