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Visual.cs
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using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using System.Drawing.Drawing2D;
using Microsoft.DirectX.AudioVideoPlayback;
using System.Threading;
namespace AI
{
class Visual
{
Env env;
F f;
public System.Windows.Forms.PaintEventArgs e;
PointF INF_PointF;
int counter;
DateTime FPS_start;
float FPS;
public Being selected_being, selected_hover_being, portal_select_being;
public Essence selected_hover_essence;
Random rn;
string status;
public bool selected_being_follow;
int status_miss_lines;
Thread thread;
//drawing
Font font = new Font("Verdana", 8.25f, FontStyle.Regular);
Pen pen, penThick, penThick2;
SolidBrush brush_shadow_20, brush_shadow_50, brush_shadow_70;
//sound
Audio sound_ambience, sound_restart, sound_die, sound_born, sound_essence_add;
Audio[] sound_eat;
//settings
public float scale = 1.0f;
public PointF visPos;
float tail_offset_coefficient = 1.4f;
float tail_radius = 1.2f;
public Visual(Env _env)
{
env = _env;
f = env.f;
INF_PointF = new PointF(float.PositiveInfinity, float.PositiveInfinity);
FPS_start = DateTime.Now;
rn = new Random((int)DateTime.Now.Ticks);
status = "";
selected_being_follow = false;
visPos = new PointF(env.Width / 2, env.Height / 2);
ThreadStart starter = delegate { Draw(); };
thread = new Thread(starter);
thread.Start();
thread.Priority = ThreadPriority.BelowNormal;
Load();
}
//||||| broken: does not sustain same coords when changing scale with
// visPos offset
public void ChangeScale(float percentChange)
{
float percent = 1 - percentChange;
PointF p = TransformToWorld(new PointF(env.Width / 2f, env.Height / 2f));
PointF diff;
//visPos = f.Divide(visPos, scale);
scale = scale * percent;
scale = f.NumberBound(scale, 0.1f, 1f);
diff = f.Dir(TransformToScreen(p), new PointF(env.Width / 2f, env.Height / 2f));
visPos = f.Add(visPos, diff);
}
public void Select(Point p, bool hover)
{
if (hover)
{
//hover select
selected_hover_being = SelectBeing(p);
selected_hover_essence = SelectEssence(p);
}
else
{
//select
selected_being = SelectBeing(p);
}
}
public Being SelectBeing(Point p)
{
int c = env.ai.beings.Count;
if (c == 0)
{
return null;
}
p = TransformToWorld(p);
////check if inside first
//for (int i = 0; i < c; i++)
//{
// if (f.PointInsideRectangle(p, env.ai.beings[i].rectangle))
// {
// return env.ai.beings[i];
// }
//}
//check for closest
float dist, closestDist, minDistMultiplier;
Being closest, being;
minDistMultiplier = 20.0f;
closest = null;
closestDist = float.MaxValue;
try
{
IEnumerator<Being> en = env.ai.beings.GetEnumerator();
while (en.MoveNext())
{
being = en.Current;
dist = f.Distance(p, being.p);
if (dist < closestDist & dist < (float)Math.Pow(being.radius, 0.1) * minDistMultiplier)
{
closestDist = dist;
closest = being;
}
}
en.Dispose();
}
catch { }
return closest;
}
public Essence SelectEssence(Point p)
{
int c = env.ai.essences.Count;
if (c == 0)
{
return null;
}
p = TransformToWorld(p);
//check for closest
float dist, closestDist, minDistMultiplier;
Essence closest, essence;
minDistMultiplier = 4.0f;
closest = null;
closestDist = float.MaxValue;
try
{
IEnumerator<Essence> en = env.ai.essences.GetEnumerator();
while (en.MoveNext())
{
essence = en.Current;
dist = f.Distance(p, essence.p);
if (essence.shell == null && dist < closestDist & dist < essence.radius * minDistMultiplier)
{
closestDist = dist;
closest = essence;
}
}
en.Dispose();
}
catch { }
return closest;
}
public void DragScreen(Point screenOffset)
{
visPos = f.Add(visPos, screenOffset);
selected_being_follow = false;
}
private void FollowSelectedBeing()
{
if (selected_being == null)
{
selected_being_follow = false;
}
if (selected_being_follow)
{
visPos = f.Add(f.Multiply(selected_being.p, -scale), new PointF(env.Width / 2, env.Height / 2));
}
}
private void Draw()
{
while (thread.IsAlive)
{
//// check that all beings have updated
//int c = env.ai.beings.Count;
//if (c != 0)
//{
// for (int i = 0; i < c; i++)
// {
// if (!env.ai.beings[i].updated)
// {
// return;
// }
// }
//}
env.Invalidate();
GetFPS();
IncrementCounter();
Thread.Sleep(env.timer.Interval);
}
}
void Update_e(object sender, System.Windows.Forms.PaintEventArgs newE)
{
e = newE;
e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
portal_select_being = null;
bool retry = true;
while (retry)
{
retry = false;
try
{
e.Graphics.Transform = new Matrix(1, 0, 0, 1, 0, 0);
FollowSelectedBeing();
DrawStatus();
DrawRadar();
e.Graphics.Transform = new Matrix(scale, 0, 0, scale, visPos.X, visPos.Y);
DrawShell();
DrawEssence();
DrawBeing();
}
catch
{
e.Graphics.Clear(env.BackColor);
retry = true;
}
}
}
public void ScrollStatus(int lines)
{
status_miss_lines += lines;
status_miss_lines = f.NumberBound(status_miss_lines, 0);
}
private void DrawStatus()
{
if ((int)(0.1f / env.timeInterval) == 0 || counter % (int)(0.1f / env.timeInterval) == 0)
{
status = "";
}
if (status == "")
{
string str;
str = "v" + env.debug.version + Environment.NewLine +
"Demonstrates simple AI. The beings need all of the different types of" + Environment.NewLine +
"essence to survive." + Environment.NewLine +
"- Full (non-rotational) world movement implemented." + Environment.NewLine +
"- Left-click to select, right-click to drag." + Environment.NewLine +
"- Hold ctrl while left-clicking to lock camera onto target." + Environment.NewLine +
"- To change the time scale, hold down 'T' and scroll" + Environment.NewLine +
" with the mouse wheel." + Environment.NewLine +
"- You can 'jump to being' by clicking on its corresponding" + Environment.NewLine +
" waypoint in the radar (to the right)." + Environment.NewLine +
"- Hold shift while scrolling with the mouse wheel to" + Environment.NewLine +
" scroll this text." + Environment.NewLine +
Environment.NewLine;
str += "Music: " + Environment.NewLine +
"\"I Dream\" by nomadicxxl. Licence: CC BY 3.0." + Environment.NewLine +
"Available at https://freesound.org/s/371802/" + Environment.NewLine +
Environment.NewLine;
str += "Effects: " + Environment.NewLine +
"\"Ting\" by Popup Pixels. Licence: CC BY 3.0." + Environment.NewLine +
"Available at http://soundbible.com/1628-Ting.html" + Environment.NewLine +
Environment.NewLine;
str += "Scale: x" + string.Format("{0:0.00}", scale) + Environment.NewLine +
"Time Scale: x" + string.Format("{0:0.0}", env.timeScale) + Environment.NewLine;
str += "Mouse: " + TransformToWorld(env.oldMouseLoc) + Environment.NewLine +
"Restarts: " + env.ai.restarts + Environment.NewLine +
"Age: " + f.ToString(new TimeSpan(f.SecondsToTicks(env.ai.age))) + Environment.NewLine +
Environment.NewLine;
if (selected_being != null)
{
str += "Selected Being:" + selected_being.ToString().Replace(Environment.NewLine, Environment.NewLine + " ") + Environment.NewLine;
}
str += "Being averages:" + env.ai.Stats_Beings().Replace(Environment.NewLine, Environment.NewLine + " ") + Environment.NewLine;
str += "Essence averages:" + env.ai.Stats_Essence().Replace(Environment.NewLine, Environment.NewLine + " ") + Environment.NewLine;
//miss lines
string[] lines;
string[] delimit = new string[1];
delimit[0] = Environment.NewLine;
lines = str.Split(delimit, StringSplitOptions.RemoveEmptyEntries);
status_miss_lines = f.NumberBound(status_miss_lines, 0, lines.Length - 1);
int c = lines.Length;
if (c != 0 & status_miss_lines != 0)
{
for (int i = 0; i < status_miss_lines; i++)
{
str = str.Replace(lines[i] + Environment.NewLine, "");
}
}
//remove space
while (str.Length != 0 && str.Substring(0, 2) == Environment.NewLine)
{
str = str.Remove(0, 2);
}
if (status_miss_lines > 0)
{
str = "...(" + status_miss_lines + " lines hidden. Hold down shift and scroll to change)..." + Environment.NewLine + str;
}
status = str;
}
DrawText(status, new Point());
//FPS
DrawText("FPS: " + string.Format("{0:0.0}", FPS), new Point(env.Width - 20, 0), Brushes.White, 1, 1);
//paused + accuracy
if (!env.alive)
{
DrawText("Paused", new Point(env.Width / 2, 0));
}
else if (env.timeScale > 1f)
{
DrawText("Accuracy: " + string.Format("{0:0}", 100f / Math.Pow(env.timeScale, 0.4)) + "%", new Point(env.Width / 2, 0));
}
}
private void GetFPS()
{
int interval = 40;
if (counter % interval == 0 && counter != 0)
{
TimeSpan time;
float seconds;
time = DateTime.Now - FPS_start;
seconds = (float)f.TicksToSeconds(time.Ticks);
FPS = interval / seconds;
FPS_start = DateTime.Now;
}
}
private void DrawRadar()
{
//shows in corner of screen in which
//direction all of the beings are
Point p, p1, p2, p3, v1, v2;
PointF dir;
PointF[] ps;
Being being;
float radius = 60f;
p = new Point(env.Width - 90, 80);
DrawCircle(p, radius, null, brush_shadow_70);
DrawText("Radar", new Point(p.X, p.Y + (int)radius + 2), brush_shadow_70, 1, 0);
int c = env.ai.beings.Count;
if (c == 0)
{
return;
}
//for (int i = 0; i < c; i++)
//{
IEnumerator<Being> en = env.ai.beings.GetEnumerator();
while (en.MoveNext())
{
being = en.Current;
//p
p1 = f.ConvertTo(TransformToScreen(being.p));
dir = f.Dir(p, p1);
if (dir == new PointF())
{
dir = new PointF(0, 1);
}
p2 = f.ConvertTo(f.Offset(dir, radius - 5f));
p3 = f.ConvertTo(f.Offset(dir, radius + 5f));
p2 = f.Add(p2, p);
p3 = f.Add(p3, p);
DrawLine(p2, p3, Brushes.White);
if (f.Distance(env.oldMouseLoc, f.MidPoint(p2, p3)) <= 10)
{
//draw distance
DrawText(
"d: " + string.Format("{0:0}", f.Distance(TransformToWorld(p), being.p)) + Environment.NewLine +
"click to jump to"
, p, Brushes.White, 0, 0);
portal_select_being = being;
}
////long term memory:
//if (being.memory_essence.count_long != 0)
//{
// ps = f.TangentsToCircleFromPoint(TransformToWorld(p), being.memory_essence.mean_long, being.memory_essence.sd_long * 3f);
// //p1 = f.ConvertTo(being.memory_essence.mean_long);
// //dir = f.Dir(TransformToWorld(p), p1);
// //if (dir == new PointF())
// //{
// // dir = new PointF(0, 1);
// //}
// //p2 = f.ConvertTo(f.Add(p1, f.Offset(f.Perpendicular(dir, true), being.memory_essence.sd_long * 3f)));
// //p3 = f.ConvertTo(f.Add(p1, f.Offset(f.Perpendicular(dir, false), being.memory_essence.sd_long * 3f)));
// //left
// v1 = f.ConvertTo(TransformToScreen(ps[0]));
// dir = f.Dir(new PointF(p.X, p.Y), TransformToScreen(ps[0]));
// v1 = f.ConvertTo(f.Offset(dir, radius));
// v2 = f.ConvertTo(f.Offset(dir, radius + 5f));
// v1 = f.Add(v1, p);
// v2 = f.Add(v2, p);
// DrawLine(v1, v2, brush_shadow_50);
// //right
// v1 = f.ConvertTo(TransformToScreen(ps[1]));
// dir = f.Dir(new PointF(p.X, p.Y), TransformToScreen(ps[1]));
// v1 = f.ConvertTo(f.Offset(dir, radius));
// v2 = f.ConvertTo(f.Offset(dir, radius + 5f));
// v1 = f.Add(v1, p);
// v2 = f.Add(v2, p);
// DrawLine(v1, v2, brush_shadow_50);
//}
}
en.Dispose();
}
private void DrawBeing()
{
IEnumerator<Being> en = env.ai.beings.GetEnumerator();
while (en.MoveNext())
{
DrawBeing(en.Current);
}
en.Dispose();
}
private void DrawBeing(Being being)
{
Point p;
//extra:
if ((selected_being != null && being == selected_being) || (selected_hover_being != null && being == selected_hover_being))
{
////info
//p = new Point((int)(being.p.X + being.radius * 3f), (int)(being.p.Y + being.radius * 3f));
//DrawText(being.ToString(), p);
////target
//if (being.target_move != INF_PointF)
//{
// DrawLine(being.p, being.target_move);
//}
////selection
//DrawCircle(being.p, being.radius * 2f , null, Brushes.LightSteelBlue);
//visual radius
DrawCircle(being.p, env.ai.being_lookAround_radius, null, brush_shadow_50);
DrawText("Field of View", new Point((int)being.p.X, (int)(being.p.Y + env.ai.being_lookAround_radius) + 2), brush_shadow_50, 1, 0);
//memory:
if (being.memory_essence.count_short != 0)
{
DrawCircle(being.memory_essence.mean_short, being.memory_essence.sd_short * 3, null, brush_shadow_50);
DrawText("Short-Term Memory", new Point((int)being.memory_essence.mean_short.X, (int)(being.memory_essence.mean_short.Y + being.memory_essence.sd_short * 3) + 2), brush_shadow_50, 1, 0);
}
if (being.memory_essence.count_long != 0)
{
DrawCircle(being.memory_essence.mean_long, being.memory_essence.sd_long * 3, null, brush_shadow_20);
DrawText("Long-Term Memory", new Point((int)being.memory_essence.mean_long.X, (int)(being.memory_essence.mean_long.Y + being.memory_essence.sd_long * 3) + 2), brush_shadow_20, 1, 0);
}
}
//glow
DrawCircle(being.p, being.radius * 2.0f, brush_shadow_20, null);
DrawCircle(being.p, being.radius * 1.5f, brush_shadow_50, null);
//DrawCircle(being.p, being.radius * 0.5f, brush_shadow_70, null);
//main:
DrawCircle(being.p, being.radius);
//dir
float dist1, dist2, min, max;
int alpha;
PointF p1, p2, dir, dir2;
f.MinMaxValue(being.amount, out min, out max);
alpha = (int)(min * 255f);
alpha = f.NumberBound(alpha, 0, 255);
Color cl = Color.FromArgb(alpha, Color.White);
SolidBrush brush = new SolidBrush(cl);
if (being.target_move != INF_PointF)
{
dir = f.Dir(being.p, being.target_move);
}
else
{
if (being.dir != new PointF())
{
dir = being.dir;
}
else
{
dir = new PointF(0, -1);
}
}
dist1 = being.radius * 1f;
dist2 = being.radius * 0.5f;
DrawCircle(being.p, dist2, brush, Brushes.White); //displays the state of the being
p1 = f.Offset(dir, dist1);
p1 = f.Add(p1, being.p);
p2 = new PointF(); //f.Offset(dir, dist2);
p2 = f.Add(p2, being.p);
DrawLine(p1, p2);
//mouth:
Point[] ps = new Point[3];
float closed;
float bend = 0.7f;
float size = 1.0f;
closed = 1f - being.timer_feed / env.phy.being_feed_timer_start_s;
dir = being.mouth_offset;
dir = f.Offset(dir, being.radius * size);
dir2 = f.Perpendicular(dir, false);
for (int v = 0; v < 2; v++)
{
if (v == 1)
{
dir2 = f.Opposite(dir2);
}
ps[0] = f.ConvertTo(being.mouth_offset);
ps[1] = f.ConvertTo(f.Add(f.Add(ps[0], f.Multiply(dir2, bend)), f.Multiply(dir, (1f - bend))));
ps[2] = f.ConvertTo(f.Add(f.Add(ps[0], f.Multiply(dir2, closed)), dir));
for (int i = 0; i < 3; i++)
{
ps[i] = f.Add(ps[i], f.ConvertTo(being.p));
}
e.Graphics.DrawCurve(pen, ps);
}
//animation:
if (being.timer_creation > 0)
{
int x1, x2;
x1 = (int)(env.ai.timer_creation / env.timeInterval);
x1 = f.NumberBound(x1, 1);
x2 = (int)(being.timer_creation / env.timeInterval);
x2 = f.NumberBound(x2, 1);
DrawRipple(being.p, being.radius * 10f, being.radius, x1, x2, brush_shadow_70);
being.timer_creation -= env.timeInterval;
}
//tail:
dir = f.Opposite(being.velocity);
if (dir == new PointF())
{
dir = new PointF(0, 1);
}
dir = f.Offset(dir, being.radius * tail_offset_coefficient);
p = f.Ceiling(f.Add(being.p, dir));
DrawCircle(p, tail_radius, null, Brushes.White);
//body:
float dist_coefficient = 1.8f;
if (being.shells.Count == 0)
{
DrawCircle(being.p, being.radius * dist_coefficient, null, brush_shadow_70);
}
else
{
PointF dir1, dir3;
Shell shell;
int index;
int c = being.shells.Count;
ps = new Point[c * 2 + 4];
dir1 = new PointF();
for (int i = 0; i < c; i++)
{
index = i + 0;
//left side
shell = being.shells[i];
if (i != 0)
{
dir1 = f.Dir(shell.p, being.shells[i - 1].p);
}
else
{
dir1 = f.Dir(shell.p, being.p);
}
if (dir1 == new PointF())
{
dir1 = new PointF(0, 1);
}
dir1 = f.Perpendicular(dir1, true);
dir1 = f.Offset(dir1, shell.radius * dist_coefficient);
ps[index] = f.ConvertTo(f.Add(shell.p, dir1));
//right side
dir2 = f.Opposite(dir1);
ps[c * 2 - index] = f.ConvertTo(f.Add(shell.p, dir2));
//end
if (i == c - 1)
{
dir1 = f.Perpendicular(dir1, true);
ps[c * 2 - index - 1] = f.ConvertTo(f.Add(shell.p, dir1));
}
}
//head
//starting from right side
if (being.shells.Count != 0 && being.shells[0] != null)
{
dir1 = f.Dir(being.shells[0].p, being.p);
}
if (dir1 == new PointF())
{
dir1 = new PointF(0, 1);
}
dir1 = f.Perpendicular(dir1, false);
dir1 = f.Offset(dir1, being.radius * dist_coefficient);
dir2 = f.Perpendicular(dir1, true);
dir3 = f.Perpendicular(dir2, true);
ps[ps.Length - 3] = f.ConvertTo(f.Add(being.p, dir1));
ps[ps.Length - 2] = f.ConvertTo(f.Add(being.p, dir2));
ps[ps.Length - 1] = f.ConvertTo(f.Add(being.p, dir3));
////check that no point is close to another
//float min_distance = 5f;
//c = ps.Length;
//for (int i = 0; i < c; i++)
//{
// for (int v = 0; v < c; v++)
// {
// if (i != v && f.Distance(ps[i], ps[v]) < min_distance)
// {
// ps[i] = Point.Empty;
// }
// }
//}
//ps = f.Clean(ps);
////check that no point is inside shell and being
//int cc;
//c = ps.Length;
//for (int i = 0; i < c; i++)
//{
// cc = being.shells.Count;
// for (int v = 0; v < cc; v++)
// {
// if (f.Distance(ps[i], f.ConvertTo(being.shells[v].p)) < being.shells[v].radius)
// {
// ps[i] = Point.Empty;
// }
// }
//}
//ps = f.Clean(ps);
e.Graphics.DrawClosedCurve(new Pen(brush_shadow_70), ps);
}
being.updated = false;
}
private void DrawShell()
{
IEnumerator<Shell> en = env.ai.shells.GetEnumerator();
while (en.MoveNext())
{
DrawShell(en.Current);
}
en.Dispose();
}
private void DrawShell(Shell shell)
{
////extra:
//if ((selected_being != null && being == selected_being) || (selected_hover_being != null && being == selected_hover_being))
//{
// ////target
// //if (being.target_move != INF_PointF)
// //{
// // DrawLine(being.p, being.target_move);
// //}
// //selection
// DrawCircle(being.p, being.radius * 2f);
//}
//glow
DrawCircle(shell.p, shell.radius * 2.0f, brush_shadow_20, null);
DrawCircle(shell.p, shell.radius * 1.5f, brush_shadow_50, null);
//main:
Point p;
PointF dir;
//hollow circle
DrawCircle(shell.p, shell.radius, null, brush_shadow_70);
//tail:
dir = f.Opposite(shell.velocity);
if (dir == new PointF())
{
dir = new PointF(0, -1);
}
dir = f.Offset(dir, shell.radius);
dir = f.Multiply(dir, tail_offset_coefficient);
p = f.Ceiling(f.Add(shell.p, dir));
try
{
DrawCircle(p, tail_radius, null, Brushes.White);
}
catch { }
}
private void DrawEssence()
{
IEnumerator<Essence> en = env.ai.essences.GetEnumerator();
while (en.MoveNext())
{
DrawEssence(en.Current);
}
en.Dispose();
}
private void DrawEssence(Essence essence)
{
Point p;
//extra:
if (selected_hover_essence != null && essence == selected_hover_essence)
{
//info
p = new Point((int)(essence.p.X + essence.radius * 1.5f), (int)(essence.p.Y + essence.radius * 1.5f));
DrawText(essence.ToString(), p, brush_shadow_70);
}
//animation:
if (essence.timer_creation > 0)
{
int x1, x2;
x1 = (int)(env.ai.timer_creation / env.timeInterval);
x1 = f.NumberBound(x1, 1);
x2 = (int)(essence.timer_creation / env.timeInterval);
x2 = f.NumberBound(x2, 1);
DrawRipple(essence.p, essence.radius * 10f, essence.radius, x1, x2, brush_shadow_70);
essence.timer_creation -= env.timeInterval;
}
//glow
if (essence.shell == null)
{
DrawCircle(essence.p, essence.radius * 2.0f, brush_shadow_20, null);
DrawCircle(essence.p, essence.radius * 1.5f, brush_shadow_50, null);
}
switch (essence.type)
{
case 0:
//protein
//main:
//Point p;
//PointF dir;
//hollow circle
DrawCircle(essence.p, essence.radius);
////draw tail if no shell:
//if (essence.shell == null)
//{
// dir = f.Opposite(essence.velocity);
// if (dir == new PointF())
// {
// dir = new PointF(0, -1);
// }
// dir = f.Offset(dir, essence.radius);
// dir = f.Multiply(dir, tail_offset_coefficient);
// p = f.Ceiling(f.Add(essence.p, dir));
// DrawCircle(p, tail_radius, null, Brushes.White);
//}
break;
case 1:
//carbo
//3 swirling circles
//main:
float radius = 1.5f;
float speed = 0.1f;
Point p1, p2, p3;
p1 = new Point();
p2 = new Point();
p3 = new Point();
p1.X = (int)(Math.Cos(env.counter * speed) * essence.radius);
p1.Y = (int)(Math.Sin(env.counter * speed) * essence.radius);
p2.X = (int)(Math.Cos(env.counter * speed + 1.3f / 2f * Math.PI) * essence.radius);
p2.Y = (int)(Math.Sin(env.counter * speed + 1.3f / 2f * Math.PI) * essence.radius);
p3.X = (int)(Math.Cos(env.counter * speed + 2.7f / 2f * Math.PI) * essence.radius);
p3.Y = (int)(Math.Sin(env.counter * speed + 2.7f / 2f * Math.PI) * essence.radius);
p1 = f.Add(p1, f.ConvertTo(essence.p));
p2 = f.Add(p2, f.ConvertTo(essence.p));
p3 = f.Add(p3, f.ConvertTo(essence.p));
DrawCircle(p1, radius, null, Brushes.White);
DrawCircle(p2, radius, null, Brushes.White);
DrawCircle(p3, radius, null, Brushes.White);
break;
}
}
private void DrawLine(PointF p1, PointF p2)
{
e.Graphics.DrawLine(pen, p1, p2);
}
private void DrawLine(PointF p1, PointF p2, Brush brush)
{
e.Graphics.DrawLine(new Pen(brush), p1, p2);
}
private void DrawLine_Hollow(PointF p1, PointF p2, float width, Brush fill)
{
//work out direction. take perpendiculars on both sides
//and using the width, work out the 4 points to make the
//rectangle.
PointF dir, perp1, perp2;
PointF[] points = new PointF[4];
dir = f.Subtract(p2, p1);
perp1 = f.Perpendicular(dir, true);
perp1 = f.Offset(perp1, width / 2f);
perp2 = f.Opposite(perp1);
//p1
points[0] = f.Add(p1, perp1);
points[1] = f.Add(p1, perp2);
//p2
points[2] = f.Add(p2, perp2);
points[3] = f.Add(p2, perp1);
if (fill != null)
{
e.Graphics.FillPolygon(fill, points);
}
e.Graphics.DrawPolygon(pen, points);
}
private void DrawDot(Pen _pen, PointF p)
{
e.Graphics.DrawLine(_pen, new PointF(p.X - _pen.Width / 2, p.Y), new PointF(p.X + _pen.Width / 2, p.Y));
}
private void DrawDiamond(Pen pen, PointF p1, PointF p2, float width, Brush fill)
{
//work out direction. take perpendiculars on both sides
//and using the width, work out the 2 other points to make the
//diamond.
PointF dir, perp1, perp2, mp;
PointF[] points = new PointF[4];
dir = f.Subtract(p2, p1);
mp = f.MidPoint(p1, p2);
perp1 = f.Perpendicular(dir, true);
perp1 = f.Offset(perp1, width / 2f);
perp2 = f.Opposite(perp1);
//p1
points[0] = p1;
points[1] = f.Add(mp, perp2);
//p2
points[2] = p2;
points[3] = f.Add(mp, perp1);
if (fill != null)
{
e.Graphics.FillPolygon(fill, points);
}
e.Graphics.DrawPolygon(pen, points);
}
/// <summary>
/// Creates a new visual item.
/// </summary>
/// <param name="handle">The data object that this item handles.</param>
/// <param name="rectangle">The position and size of this item.</param>
/// <param name="type">
/// 0 = treeBox
/// 1 = treeItem
/// </param>
//private VisItem NewItem(object handle, Rectangle rectangle, int type)
//{
// VisItem item = new VisItem(handle, rectangle, type);
// items.Add(item);
// return item;
//}
//private void DrawTree(Point loc)