/// <summary>
/// Creates empty text box.
/// </summary>
/// <param name="name">Name of the widget</param>
/// <param name="pos">Position of the text box</param>
/// <param name="length">Maximum width</param>
/// <param name="text">Value of textbox (default: empty).</param>
/// <param name="fc">Foreground color (default gray).</param>
/// <param name="bc">Background color (default black).</param>
public TextBox(string name, Position pos, int length, string text = "",
ConsoleColor fc = ConsoleColor.Gray, ConsoleColor bc = ConsoleColor.Black)
: base(name, pos, length, 1, fc, bc)
{
this.Text = text;
this._isEdited = false;
}
/// <summary>
/// Initializes a new rectangle structure based on the
/// positions of its upper left and lower right vertices.
/// </summary>
/// <param name="tl">Position of the top left vertex of the rectangle.</param>
/// <param name="br">Position of the bottom right vertex of the rectangle.</param>
public Rectangle(Position tl, Position br)
{
Left = tl.X; Top = tl.Y;
Width = br.X - tl.X;
Height = br.Y - tl.Y;
}
/// <summary>
/// Creates empty frame.
/// </summary>
/// <param name="name">Name of the widget.</param>
/// <param name="pos">Position of the frame.</param>
/// <param name="width">Size of the frame.</param>
/// <param name="height">Size of the frame.</param>
/// <param name="title">Frame title.</param>
/// <param name="fc">Foreground color (default gray).</param>
/// <param name="bc">Background color (default black).</param>
public Frame(string name, Position pos, int width, int height, string title = "",
ConsoleColor fc = ConsoleColor.Gray, ConsoleColor bc = ConsoleColor.Black)
: base(name, pos, width, height, false, fc, bc)
{
Children = new Dictionary<string, Widget>();
Title = title;
}
/// <summary>
/// Creates progress bar.
/// </summary>
/// <param name="name">Name of the widget.</param>
/// <param name="pos">Position of the progress bar.</param>
/// <param name="width">Width of the progress bar</param>
/// <param name="maxValue">Maximum value.</param>
/// <param name="value">Current value (default: 0).</param>
/// <param name="fc">Foreground color (default gray).</param>
/// <param name="bc">Background color (default black).</param>
public ProgressBar(string name, Position pos, int width, int maxValue, float value = 0.0f,
ConsoleColor fc = ConsoleColor.Gray, ConsoleColor bc = ConsoleColor.Black)
: base(name, pos, width, 1, false, fc, bc)
{
this.Value = value;
this.MaxValue = maxValue;
}
/// <summary>
/// Creates an widget.
/// </summary>
/// <param name="name">Name of the widget.</param>
/// <param name="pos">Position of the widget.</param>
/// <param name="width">Size of the widget.</param>
/// <param name="height">Size of the widget.</param>
/// <param name="isSelectable">If true widget can be selected.</param>
/// <param name="fc">Foreground color (default gray).</param>
/// <param name="bc">Background color (default black).</param>
public Widget(string name, Position pos, int width, int height, bool isSelectable,
ConsoleColor fc = ConsoleColor.Gray, ConsoleColor bc = ConsoleColor.Black)
{
this.Name = name;
this.rectangle = new Rectangle(pos, new Position(pos.X + width, pos.Y + height));
this.ForegroundColor = fc;
this.BackgroundColor = bc;
_isSelectable = isSelectable;
}
public override void Draw()
{
ConsoleColor fc = ForegroundColor;
ConsoleColor bc = BackgroundColor;
// If widget is selected
// swap colors
if (IsSelectable && IsSelected && !_isEdited)
{
fc = BackgroundColor;
bc = ForegroundColor;
}
ConsoleKeyInfo info;
if (_isEdited && Interface.Input.TryReadKey(out info)) {
// ASCII code of pressed key
int asciiCode = (int)info.KeyChar;
// If pressed key is enter - stop editing
if (info.Key == ConsoleKey.Enter) {
_isEdited = false;
UIManager.IsInputBlocked = false;
}
// If pressed key is backspace - remove last char
else if (info.Key == ConsoleKey.Backspace) {
if (Text.Length > 0)
Text = Text.Remove(Text.Length - 1);
}
// If pressed key is a printable char
// add this char to text
else if (asciiCode >= 32 && asciiCode <= 126) {
Text += info.KeyChar.ToString();
}
}
UIManager.DrawString(Position, "[" + Text + "]", fc, bc);
if (_isEdited) {
var CursorPos = new Position(Position.X + Text.Length + 1, Position.Y);
var cfc = fc;
if (((long)Tools.CurTime()) % 2 == 0)
cfc = bc;
UIManager.DrawString(CursorPos, "_", cfc, bc);
}
}
/// <summary>
/// Finds the smallest rectangle that encloses both this
/// instance and another given rectangle.
/// </summary>
/// <param name="rect">Rectangle to find the union of.</param>
/// <returns>A rectangle that encloses both this instance and
/// the given rectangle.</returns>
public Rectangle Union(Rectangle rect)
{
if (Area == 0) return rect;
if (rect.Area == 0) return this;
var tl = new Position(
Math.Min(this.Left, rect.Left),
Math.Min(this.Top, rect.Top));
var br = new Position(
Math.Max(this.Right, rect.Right),
Math.Max(this.Bottom, rect.Bottom));
return new Rectangle(tl, br);
}
/// <summary>
/// Finds the nearest position within the rectangle to
/// the specified location.
/// </summary>
/// <param name="pos">Position to find the closest position to.</param>
/// <returns>The closest position within the rectangle to the
/// specified location.</returns>
public Position NearestPosition(Position pos)
{
return new Position(pos.X.Clamp(Left, Right - 1), pos.Y.Clamp(Top, Bottom - 1));
}
/// <summary>
/// Tests to see if the given position is within the bounds
/// of this rectangle.
/// </summary>
/// <param name="pos">Position to perform an intersection
/// test with.</param>
/// <returns>True if the position is within the bounds of this
/// rectangle, and false otherwise.</returns>
public bool Intersects(Position pos)
{
return this.Left <= pos.X && this.Top <= pos.Y
&& this.Right > pos.X && this.Bottom > pos.Y;
}
/// <summary>
/// Finds the rectangle describing the intersection between
/// this and another rectangle if one exists, and otherwise
/// an empty rectangle.
/// </summary>
/// <param name="rect">Rectangle to find the intersection with.</param>
/// <returns>The intersecting rectangle if one exists, and
/// otherwise the zero rectangle.</returns>
public Rectangle Intersection(Rectangle rect)
{
if (!Intersects(rect) && !IsAdjacent(rect)) return Rectangle.Zero;
var tl = new Position(
Math.Max(this.Left, rect.Left),
Math.Max(this.Top, rect.Top));
var br = new Position(
Math.Min(this.Right, rect.Right),
Math.Min(this.Bottom, rect.Bottom));
return new Rectangle(tl, br);
}
/// <summary>
/// Gets a sequence of positions that trace a line from
/// this position to the specified destination.
/// </summary>
/// <param name="dest">Destination to trace a line to.</param>
/// <returns>A sequence of positions forming a line.</returns>
/// <remarks>
/// From http://bit.ly/QNHZ7i
/// </remarks>
public IEnumerable<Position> BresenhamLine(Position dest)
{
var a = this;
var b = dest;
int dx = Math.Abs(b.X - a.X);
int dy = Math.Abs(b.Y - a.Y);
int sx = a.X < b.X ? 1 : -1;
int sy = a.Y < b.Y ? 1 : -1;
int err = dx - dy;
for (;;) {
yield return a;
if (a.X == b.X && a.Y == b.Y) yield break;
int e2 = 2 * err;
if (e2 > -dy) {
err = err - dy;
a.X += sx;
}
if (e2 < dx) {
err = err + dx;
a.Y += sy;
}
}
}
/// <summary>
/// Creates new label.
/// </summary>
/// <param name="name">Name of the widget.</param>
/// <param name="pos">Position of the label.</param>
/// <param name="text">Text of the label.</param>
/// <param name="fc">Foreground color (default gray).</param>
/// <param name="bc">Background color (default black).</param>
public Label(string name, Position pos, string text,
ConsoleColor fc = ConsoleColor.Gray, ConsoleColor bc = ConsoleColor.Black)
: base(name, pos, text.Length, 1, false, fc, bc)
{
this.Text = text;
}
/// <summary>
/// A map of the 16 possible neighbouring tile solidity
/// states to the characters that should be used when
/// drawing walls.
///
/// TODO: Move to a definition file, allowing for different
/// types of walls?
/// </summary>
/// <summary>
/// Renders the tiles deemed visible within the room corresponding
/// to this visibility mask to the specified location on the screen.
/// </summary>
/// <param name="vis">Visibility mask to draw from.</param>
/// <param name="rect">Clipping rectangle in level-space.</param>
/// <param name="screenPos">Position on the screen that the top-left
/// of the rectangle should be drawn to.</param>
/// <param name="attribs">Attributes to be used when drawing tiles
/// and entities.</param>
public static void Draw(this RoomVisibility vis, Rectangle rect, Position screenPos, DrawAttributes attribs, ulong time)
{
var subRect = vis.Rect.Intersection(rect);
var roomPos = vis.Rect.TopLeft;
if (subRect.Width * subRect.Height <= 0) return;
// Move the screen position and clipping rectangle to room-space.
screenPos += roomPos - rect.TopLeft;
rect = subRect - roomPos;
foreach (var tile in vis.GetVisible(time)) {
if (rect.Intersects(tile.Position)) {
tile.Draw(screenPos + tile.Position, attribs, true);
}
}
foreach (var tile in vis.GetRemembered(time)) {
if (rect.Intersects(tile.Position)) {
tile.Draw(screenPos + tile.Position, new DrawAttributes(0), false);
}
}
}
/// <summary>
/// Marks a specific tile within the room as being visible
/// at the given time.
/// </summary>
/// <param name="pos">Position of the tile to mark as visible.</param>
/// <param name="appearance">Appearance of the tile at the time
/// of being seen.</param>
/// <param name="time">Time at which the tile was seen.</param>
public void Reveal(Position pos, TileAppearance appearance, ulong time)
{
_mask[pos.X, pos.Y] = Math.Max(_mask[pos.X, pos.Y], time);
_tiles[pos.X, pos.Y] = appearance;
LastVisibleTime = Math.Max(LastVisibleTime, time);
}
/// <summary>
/// Marks a specific tile within the room as being visible
/// at the given time.
/// </summary>
/// <param name="pos">Position of the tile to mark as visible.</param>
/// <param name="time">Time at which the tile was seen.</param>
public void Reveal(Position pos, ulong time)
{
_mask[pos.X, pos.Y] = Math.Max(_mask[pos.X, pos.Y], time);
LastVisibleTime = Math.Max(LastVisibleTime, time);
}
/// <summary>
/// Updates the visibility of each tile within the room from a specified
/// origin of sight, with a given maximum view radius.
/// </summary>
/// <param name="origin">Position of the observer.</param>
/// <param name="maxRadius">Maximum view radius.</param>
/// <param name="time">Time at which visibility is being tested.</param>
/// <returns>True if any tiles are currently visible, and false otherwise.</returns>
public bool UpdateVisibility(Position origin, int maxRadius, ulong time)
{
if ((Room.Rect.NearestPosition(origin) - origin).LengthSquared > maxRadius * maxRadius) {
return false;
}
foreach (var pos in Room.Rect.Positions) {
if ((pos - origin).LengthSquared > maxRadius * maxRadius) continue;
var rel = pos - Room.Rect.TopLeft;
if (_mask[rel.X, rel.Y] >= time) continue;
foreach (var mid in origin.BresenhamLine(pos)) {
rel = mid - Room.Rect.TopLeft;
if (Room.RelativeRect.Intersects(rel)) {
Reveal(rel, time);
}
if (Room[rel].State != TileState.Floor) break;
}
}
return LastVisibleTime >= time;
}
/// <summary>
/// Renders text
/// </summary>
/// <param name="pos">Position of first character.</param>
/// <param name="text">Text to render.</param>
/// <param name="fc">Foreground color (default gray).</param>
/// <param name="bc">Background color (default black).</param>
public static void DrawString(Position pos, string text,
ConsoleColor fc = ConsoleColor.Gray, ConsoleColor bc = ConsoleColor.Black)
{
for (var x = 0; x < text.Length; x++)
{
Interface.Display.SetCell(pos.X + x, pos.Y, text[x], fc, bc);
}
}
/// <summary>
/// Creates an widget that can be used.
/// </summary>
/// <param name="name">Name of the widget.</param>
/// <param name="pos">Position of the widget.</param>
/// <param name="width">Size of the widget.</param>
/// <param name="height">Size of the widget.</param>
/// <param name="fc">Foreground color (default gray).</param>
/// <param name="bc">Background color (default black).</param>
public UsableWidget(string name, Position pos, int width, int height,
ConsoleColor fc = ConsoleColor.Gray, ConsoleColor bc = ConsoleColor.Black)
: base(name, pos, width, height, true, fc, bc)
{
}
/// <summary>
/// Renders an individual tile and any entities it contains to the
/// specified location on the screen.
/// </summary>
/// <param name="tile">Tile to draw.</param>
/// <param name="screenPos">Position on the screen to draw the tile.</param>
/// <param name="attribs">Attributes to be used when drawing the tile and any entities.</param>
/// <param name="visible">If true, the tile is currently within visible range.</param>
public static void Draw(this TileAppearance tile, Position screenPos, DrawAttributes attribs, bool visible)
{
if (tile.EntityCount == 0) {
Interface.Display.SetCell(screenPos, tile.Symbol,
visible ? tile.ForeColor : ConsoleColor.DarkBlue,
visible ? tile.BackColor : ConsoleColor.Black);
} else {
int index = (attribs.Flash / EntityFlashPeriod) % tile.EntityCount;
var entity = tile[index];
var frame = entity[attribs.Flash % entity.FrameCount];
Interface.Display.SetCell(screenPos, frame.Symbol,
visible ? frame.ForeColor : ConsoleColor.DarkBlue,
visible ? frame.BackColor : ConsoleColor.Black);
}
}
