// Call to paint the grid itself
public void Paint(System.Windows.Forms.PaintEventArgs e)
{
System.Drawing.Graphics g = e.Graphics;
System.Drawing.Pen p = new System.Drawing.Pen(System.Drawing.Color.Black, 1); // outline
System.Drawing.Brush b;
// draw the filled-in grid
for (int x = 0; x < 10; x++)
{
for (int y = 0; y < 20; y++)
{
b = new System.Drawing.SolidBrush(grid[x, y].Color);
System.Drawing.Rectangle rect =
new System.Drawing.Rectangle(grid[x, y].X + this.shift_x, grid[x, y].Y + this.shift_y,
scale, scale);
g.FillRectangle(b, rect);
g.DrawRectangle(p, rect);
}
}
if (game_end)
{
foreach (GridBlock gb in this.overflow)
{
b = new System.Drawing.SolidBrush(gb.Color);
System.Drawing.Rectangle rect =
new System.Drawing.Rectangle(gb.X + this.shift_x, gb.Y + this.shift_y,
scale, scale);
g.FillRectangle(b, rect);
g.DrawRectangle(p, rect);
}
}
else
{
Tetromino f = this.minos.First();
b = new System.Drawing.SolidBrush(f.Color);
foreach (System.Drawing.Rectangle r in f.GetRectangles(this.shift_x, this.shift_y))
{
g.FillRectangle(b, r);
g.DrawRectangle(p, r);
}
}
int x_shift = this.shift_x + 12 * this.scale;
int y_shift = this.shift_y + 3 * this.scale;
for (int i = 1; i < 4; i++)
{
Tetromino t = this.minos.ElementAt(i);
b = new System.Drawing.SolidBrush(t.Color);
foreach (System.Drawing.Rectangle r in t.GetRectangles(x_shift, y_shift))
{
g.FillRectangle(b, r);
g.DrawRectangle(p, r);
}
y_shift += 5 * this.scale;
}
}
// Moves current block to the left
public void MoveLeft()
{
if (game_end)
{
return;
}
Tetromino f = this.minos.First();
if (f.GetLeft() > 0)
{
// check if any blocks are to the right
bool go = true;
foreach (System.Drawing.Rectangle rect in f.GetRectangles(0, 0))
{
int x = (rect.X - this.scale) / this.scale;
int y = rect.Y / this.scale;
if (y < 0)
{
continue;
}
go &= (grid[x, y].Color == System.Drawing.Color.FromArgb(128, 255, 255, 255));
if (y < 20)
{
go &= (grid[x, y + 1].Color == System.Drawing.Color.FromArgb(128, 255, 255, 255));
}
}
if (go)
{
f.Shift(false);
}
}
}
// Return true if the game is still going
// Return false if the game ends
public bool AdvanceTime()
{
if (game_end)
{
return(false);
}
Tetromino f = this.minos.First();
f.AdvanceTime(this.fast ? this.level * 2 : this.level);
bool going = true;
// check bottom of f
bool touch = false;
foreach (int i in f.GetColumns())
{
int b = f.GetBottom(i);
int bott = b / this.scale;
if (bott == 20 || this.grid[i, bott].Color != System.Drawing.Color.FromArgb(128, 255, 255, 255))
{
touch = true;
break;
}
}
if (touch)
{
// fill squares if the bottom of the piece now touches another piece/the bottom
List <int> rows = new List <int>();
foreach (System.Drawing.Rectangle r in f.GetRectangles(0, 0))
{
int x = r.X / this.scale;
int y = r.Y / this.scale;
if (x >= 0 && x < 10 && y >= 0 && y < 20)
{
this.grid[x, y].Color = f.Color;
rows.Add(y);
}
if (y < 0)
{
// game ends if y < 0
going = false;
GridBlock tmp = new GridBlock(r.X, r.Y - (r.Y % this.scale));
tmp.Color = f.Color;
this.overflow.Add(tmp);
}
}
this.ClearLines(rows);
if (going)
{
this.minos.RemoveFirst();
this.minos.AddLast(new Tetromino(scale));
this.minos.First().SetStart(this.scale * 4, -3 * this.scale);
// validate that the new piece doesn't cause a game over
foreach (System.Drawing.Rectangle r in this.minos.First().GetRectangles(0, 0))
{
int x = r.X / this.scale;
int y = r.Y / this.scale;
if (x >= 0 && x < 10 && y >= 0 && y < 20)
{
// if a piece already occupies where the new block ends up, the game is over
going &= (this.grid[x, y].Color == System.Drawing.Color.FromArgb(128, 255, 255, 255));
}
}
if (!going)
{
f = this.minos.First();
foreach (System.Drawing.Rectangle r in this.minos.First().GetRectangles(0, 0))
{
int x = r.X / this.scale;
int y = r.Y / this.scale;
if (x >= 0 && x < 10 && y >= 0 && y < 20)
{
// if a piece already occupies where the new block ends up, the game is over
this.grid[x, y].Color = f.Color;
}
else
{
GridBlock tmp = new GridBlock(r.X, r.Y - (r.Y % this.scale));
tmp.Color = f.Color;
this.overflow.Add(tmp);
}
}
}
}
}
this.game_end = !going;
return(going);
}
// instant drop
// Returns true if the game continues, false if the game ends
public bool DeadDrop()
{
if (this.game_end)
{
return(false);
}
Tetromino f = this.minos.First();
bool no_touch = true; // the bottom does not touch any blocks
while (no_touch)
{
// keep going until the block hits the floor
f.AdvanceTime(this.scale);
foreach (int i in f.GetColumns())
{
int b = f.GetBottom(i);
int bott = b / this.scale;
no_touch &= bott != 20 && this.grid[i, bott].Color == System.Drawing.Color.FromArgb(128, 255, 255, 255);
}
}
bool going = true;
List <int> rows = new List <int>();
foreach (System.Drawing.Rectangle r in f.GetRectangles(0, 0))
{
// fill in the grid
int x = r.X / this.scale;
int y = r.Y / this.scale;
if (x >= 0 && x < 10 && y >= 0 && y < 20)
{
this.grid[x, y].Color = f.Color;
rows.Add(y);
}
if (y < 0)
{
going = false;
GridBlock tmp = new GridBlock(r.X, r.Y - (r.Y % this.scale));
tmp.Color = f.Color;
this.overflow.Add(tmp);
}
}
this.ClearLines(rows);
if (going)
{
this.minos.RemoveFirst();
this.minos.AddLast(new Tetromino(scale));
this.minos.First().SetStart(this.scale * 4, -3 * this.scale);
// validate that the new piece doesn't cause a game over
foreach (System.Drawing.Rectangle r in this.minos.First().GetRectangles(0, 0))
{
int x = r.X / this.scale;
int y = r.Y / this.scale;
if (x >= 0 && x < 10 && y >= 0 && y < 20)
{
// if a piece already occupies where the new block ends up, the game is over
going &= (this.grid[x, y].Color == System.Drawing.Color.FromArgb(128, 255, 255, 255));
}
}
if (!going)
{
f = this.minos.First();
foreach (System.Drawing.Rectangle r in this.minos.First().GetRectangles(0, 0))
{
int x = r.X / this.scale;
int y = r.Y / this.scale;
if (x >= 0 && x < 10 && y >= 0 && y < 20)
{
// if a piece already occupies where the new block ends up, the game is over
this.grid[x, y].Color = f.Color;
}
else
{
GridBlock tmp = new GridBlock(r.X, r.Y - (r.Y % this.scale));
tmp.Color = f.Color;
this.overflow.Add(tmp);
}
}
}
}
this.game_end = !going;
return(going);
}
