private void btnStartOrPause_Click(object sender, EventArgs e)
{
if (animation == DEFINE.EAnimation.Start)
{
double sizeDir = Math.Sqrt(r.Direction.X * r.Direction.X + r.Direction.Y * r.Direction.Y);
r.Velocity = new Point(DEFINE.Round(tbVelocity.Value * (speedMoveBase * r.Direction.X / sizeDir)),
-1 * DEFINE.Round(tbVelocity.Value * (speedMoveBase * r.Direction.Y / sizeDir)));
timer1.Interval = 30;
animation = DEFINE.EAnimation.Running;
timer1.Start();
btnStartOrPause.Text = "Pause";
btnClearOrStop.Text = "Stop";
btnClearOrStop.Enabled = true;
}
else if (animation == DEFINE.EAnimation.Running)
{
animation = DEFINE.EAnimation.Pause;
btnStartOrPause.Text = "Resume";
}
else if (animation == DEFINE.EAnimation.Pause)
{
animation = DEFINE.EAnimation.Running;
btnStartOrPause.Text = "Pause";
}
}
private static void ShadedY(int x1, int y1, int x2, int y2, Color color, ref Bitmap bm)
{
int dx = Math.Abs(x2 - x1);
int dy = Math.Abs(y2 - y1);
int h = 2 * dx;
int w = h - 2 * dy;
int d = h - dy;
int x = x1;
int y = y1;
int xend;
int yend;
if (y1 > y2)
{
x = x2;
y = y2;
xend = x1;
yend = y1;
}
else
{
x = x1;
y = y1;
xend = x2;
yend = y2;
}
int deltaX = -1;
if (x < xend)
{
deltaX = 1;
}
int alpha = 255;
int y0 = y;
for (; y < yend; y++)
{
double doMo = (yend - y) / (yend - y0 * 1.0);
if (y1 == yend)
{
doMo = 1 - (yend - y) / (yend - y0 * 1.0);
}
SetPixel(x, y, Color.FromArgb(DEFINE.Round(alpha * doMo), color), ref bm);
if (d < 0)
{
d += h;
}
else
{
d += w;
x += deltaX;
}
}
}
private static void ShadedX(int x1, int y1, int x2, int y2, Color color, ref Bitmap bm)
{
int dx = Math.Abs(x2 - x1);
int dy = Math.Abs(y2 - y1);
int h = 2 * dy;
int w = h - 2 * dx;
int d = h - dx;
int x = x1;
int y = y1;
int xend;
int yend;
if (x1 > x2)
{
x = x2;
y = y2;
xend = x1;
yend = y1;
}
else
{
x = x1;
y = y1;
xend = x2;
yend = y2;
}
int deltaY = -1;
if (y < yend)
{
deltaY = 1;
}
int alpha = 255;
int x0 = x;
for (; x < xend; x++)
{
double doMo = (xend - x) / (xend - x0 * 1.0);
if (x1 == xend)
{
doMo = 1 - (xend - x) / (xend - x0 * 1.0);
}
SetPixel(x, y, Color.FromArgb(DEFINE.Round(alpha * doMo), color), ref bm);
if (d < 0)
{
d += h;
}
else
{
d += w;
y += deltaY;
}
}
}
private static void Decac(int xI, int yI, int r, Color color, ref Bitmap bm)
{
double y_real;
int x;
int y;
for (x = 0; x <= r * Math.Cos(45 * Math.PI / 180.0) + 0.5; x++)
{
y_real = Math.Sqrt(1.0 * r * r - x * x);
y = DEFINE.Round(y_real);
SetPixel(x + xI, y + yI, color, ref bm);
SetPixel(y + xI, x + yI, color, ref bm);
SetPixel(y + xI, -x + yI, color, ref bm);
SetPixel(x + xI, -y + yI, color, ref bm);
SetPixel(-x + xI, -y + yI, color, ref bm);
SetPixel(-y + xI, -x + yI, color, ref bm);
SetPixel(-y + xI, x + yI, color, ref bm);
SetPixel(-x + xI, y + yI, color, ref bm);
}
}
private static void ToaDoCuc(int xI, int yI, int r, Color color, ref Bitmap bm)
{
double scale = r / 60.0;
int alpha0 = DEFINE.Round(90 * scale);
int alphaEnd = DEFINE.Round(45 * scale);
int x, y;
for (; alpha0 >= alphaEnd; alpha0--)
{
x = DEFINE.Round(r * Math.Cos(alpha0 * Math.PI / 180 / scale));
y = DEFINE.Round(r * Math.Sin(alpha0 * Math.PI / 180 / scale));
SetPixel(x + xI, y + yI, color, ref bm);
SetPixel(y + xI, x + yI, color, ref bm);
SetPixel(y + xI, -x + yI, color, ref bm);
SetPixel(x + xI, -y + yI, color, ref bm);
SetPixel(-x + xI, -y + yI, color, ref bm);
SetPixel(-y + xI, -x + yI, color, ref bm);
SetPixel(-y + xI, x + yI, color, ref bm);
SetPixel(-x + xI, y + yI, color, ref bm);
}
}
private static void Elip(int xI, int yI, int a, int b, Color color, ref Bitmap bm)
{
int x = 0;
int y = b;
int d = DEFINE.Round(b * b - a * a * b + a * a * 0.25);
for (; (2 * b * b * x) < (2 * a * a * y); x++) // y
{
SetPixel(x + xI, y + yI, color, ref bm);
SetPixel(x + xI, -y + yI, color, ref bm);
SetPixel(-x + xI, -y + yI, color, ref bm);
SetPixel(-x + xI, y + yI, color, ref bm);
if (d < 0)
{
d += b * b * (2 * x + 3);
}
else
{
d += b * b * (2 * x + 3) + a * a * (-2 * y + 2);
y--;
}
}
d = DEFINE.Round(b * b * (x + 0.5) * (x + 0.5) + a * a * (y - 1) * (y - 1) - a * a * b * b);
for (; y >= 0; y--)
{
SetPixel(x + xI, y + yI, color, ref bm);
SetPixel(x + xI, -y + yI, color, ref bm);
SetPixel(-x + xI, -y + yI, color, ref bm);
SetPixel(-x + xI, y + yI, color, ref bm);
if (d >= 0)
{
d += a * a * (-2 * y + 3);
}
else
{
d += b * b * (2 * x + 2) + a * a * (-2 * y + 3);
x++;
}
}
}
public ucRectangleMove()
{
InitializeComponent();
bm = new Bitmap(pbDraw.Size.Width, pbDraw.Size.Height);
Oxy = new Model.Oxy(ref bm)
{
Position = new Point(DEFINE.Round(pbDraw.Width / 2), DEFINE.Round(pbDraw.Height / 2)),
Color = Color.Red
};
r = new Model.Rectangle(ref bm)
{
Position = new Point(Oxy.Position.X, Oxy.Position.Y),
Color = Color.Red,
Direction = new Point(100, 0),
Height = 60,
Width = 30,
Velocity = new Point(speedMoveBase * tbVelocity.Value, 0)
};
r.Draw();
Oxy.Draw();
pbDraw.Image = bm;
}
private static void DDA(int x1, int y1, int x2, int y2, Color color, ref Bitmap bm)
{
//get board
//calculating
double m = -3;
int infinity = 0;
if (x1 != x2)
{
infinity = 1;
m = (y2 - y1) / (x2 - x1 * 1.0); // hệ số m
}
// tăng theo x
if (((m <= 1 && m >= 0) || (m >= -1 && m < 0)) && x2 > x1)
{
double y = y1;
int iy;
for (int x = x1; x <= x2; x++)
{
iy = DEFINE.Round(y);
//putPixel(x, iy);
SetPixel(x, iy, color, ref bm);
y += m;
}
}
//tăng theo y
else if ((m > 1 || m < -1) && y2 > y1)
{
double x = x1;
int ix;
for (int y = y1; y <= y2; y++)
{
ix = DEFINE.Round(x);
//putPixel(x, iy);
SetPixel(ix, y, color, ref bm);
x += (1 * infinity / m);
}
}
// giảm theo x
else if (((m >= -1 && m <= 0) || (m > 0 && m <= 1)) && x1 > x2)
{
double y = y1;
int iy;
for (int x = x1; x >= x2; x--)
{
iy = DEFINE.Round(y);
//putPixel(x, iy);
SetPixel(x, iy, color, ref bm);
y -= m;
}
}
// giảm theo y
else if ((m > 1 || m < -1) && y1 > y2)
{
double x = x1;
int ix;
for (int y = y1; y >= y2; y--)
{
ix = DEFINE.Round(x);
SetPixel(ix, y, color, ref bm);
x -= (1 * infinity / m);
}
}
}