public bool check_for_collision(Point point, ScreenDimensions wr)
{
int width = game.width;
int index_of_tile;
int index_of_pic_field;
for (int i = 0; i < wr.height; i++)
{
for (int j = 0; j < wr.width; j++)
{
index_of_tile = (wr.bottom + j) + ((wr.top + i) * tile_size);
index_of_pic_field = ((point.x + point.y * width) + j) + i * width;
if ((index_of_pic_field >= 0) && (index_of_pic_field < arrField.Length))
{
if (tiles_array[index_of_tile] && ((Tiles_shapes)arrField[index_of_pic_field]).isBlock)
{
return(true);
}
}
else
{
return(true);
}
}
}
return(false);
}
public Game_Class(ScreenDimensions wr)
{
game = new ScreenDimensions(0, 0, wr.width / Block.Block_Width, wr.height / Block.Block_Height);
pic_field_width = wr.width;
pic_field_height = wr.height;
create_pic_field();
}
public Image Draw(Graphics graphics, Point point, ScreenDimensions wnd, bool flag = false)
{
if (flag == true)
{
return(Game_Class.generate_pic_field(graphics, wnd));
}
else
{
if ((wnd.width > 0) && (wnd.height > 0))
{
Image temp = new Bitmap(wnd.width * this.Block_Width, wnd.height * this.Block_Height);
Graphics g = Graphics.FromImage(temp);
for (int rows = wnd.top; rows < wnd.top + wnd.height; rows++)
{
for (int columns = wnd.bottom; columns < wnd.bottom + wnd.width; columns++)
{
if (tiles_array[columns + rows * tile_size])
{
obj.Draw(g, new System.Drawing.Point(this.Block_Width * (columns - wnd.bottom), this.Block_Height * (rows - wnd.top)), imageType(Shape));
}
}
}
graphics.DrawImage(temp, new PointF(this.Block_Width * (point.x + wnd.bottom - wnd.bottom), this.Block_Height * (point.y + wnd.top - wnd.top)));
g.Dispose();
temp.Dispose();
}
return(null);
}
}
public ScreenDimensions Block_Rotation(block_rotation rot)
{
ScreenDimensions wr = new ScreenDimensions();
Rotation = rot;
Build();
set_block_position(ref wr);
return(wr);
}
public void blocksMovements(Point point, ScreenDimensions wr)
{
int index_of_tile;
int index_of_pic_field;
for (int i = 0; i < wr.height; i++)
{
for (int j = 0; j < wr.width; j++)
{
index_of_tile = (wr.bottom + j) + (wr.top + i) * Block.Size;
index_of_pic_field = (point.x - game.bottom + j) + (point.y - game.top + i) * game.width;
if (tiles_array[index_of_tile])
{
arrField[index_of_pic_field] = new Tiles_shapes(Block.color(Block.Shape), true);
}
}
}
rowsCompletion();
}
public void blockPrivew(Graphics graphics, ScreenDimensions wnd, Tiles t)
{
ScreenDimensions wnd_rect = new ScreenDimensions();
bool[] array_for_blocks_creation = Blocks_Creation(t);
Point point = new Point();
set_block_position(ref wnd_rect, array_for_blocks_creation);
point.x = (wnd.width - wnd_rect.width * this.Block_Width) / 2;
point.y = (wnd.height - wnd_rect.height * this.Block_Height) / 2;
for (int rows = wnd_rect.top; rows < wnd_rect.top + wnd_rect.height; rows++)
{
for (int columns = wnd_rect.bottom; columns < wnd_rect.bottom + wnd_rect.width; columns++)
{
if (array_for_blocks_creation[columns + rows * tile_size])
{
obj.Draw(graphics, new System.Drawing.Point((point.x + this.Block_Width * (columns - wnd_rect.bottom)), (point.y + this.Block_Height * (rows - wnd_rect.top))), imageType(t.type));
}
}
}
}
public static Image generate_pic_field(Graphics e, ScreenDimensions wr)
{
Image temp = new Bitmap(pic_field_width, pic_field_height);
Graphics g = Graphics.FromImage(temp);
int w = game.width;
int h = game.height;
BlockClass b = new BlockClass();
for (int rows = 0; rows < h; rows++)
{
for (int columns = 0; columns < w; columns++)
{
if (((Tiles_shapes)arrField[columns + rows * w]).isBlock)
{
b.obj.Draw(g, new System.Drawing.Point(columns * b.Block_Width, rows * b.Block_Height), b.imageColor(((Tiles_shapes)arrField[columns + rows * w]).color));
}
}
}
g.Dispose();
return(temp);
}
private void Form1_KeyDown(object sender, KeyEventArgs e)
{
if (!check_for_start_game)
{
return;
}
// check if key input is valid (up, down, left, right, space, escape)
if (!(e.KeyCode.Equals(Keys.Up) || e.KeyCode.Equals(Keys.Down) ||
e.KeyCode.Equals(Keys.Left) || e.KeyCode.Equals(Keys.Right) ||
e.KeyCode.Equals(Keys.Space) || e.KeyCode.Equals(Keys.Escape)))
{
return;
}
Point newPos = pt_obj; // get block current position
Boolean isValidMove = false;
switch (e.KeyCode)
{
case Keys.Right: // Right
// could go right?
if ((newPos.x + scren_dimensions.width) * game.Block.Block_Width < picField.Width)
{
newPos.x++;
}
if (newPos.x.Equals(pt_obj.x))
{
return;
}
break;
case Keys.Left: // Left
// could go left?
if (newPos.x > 0)
{
newPos.x--;
}
if (newPos.x.Equals(pt_obj.x))
{
return;
}
break;
case Keys.Down: // Down
// could go down?
if ((newPos.y + scren_dimensions.height) * game.Block.Block_Height < picField.Height)
{
newPos.y++;
}
if (newPos.y.Equals(pt_obj.y))
{
return;
}
break;
case Keys.Up: // Up (rotate)
case Keys.Space: // Spacebar (rotate)
ScreenDimensions newBlockAdj = new ScreenDimensions();
// Save old angle.
Tetris.block_rotation saveAngle = game.Block.Rotation;
// try clockwise
newBlockAdj = game.Block.Block_Rotation(game.Block.rotationType(0));
if ((newPos.x + newBlockAdj.width) * game.Block.Block_Width > picField.Width)
{
newPos.x = picField.Width / game.Block.Block_Width - newBlockAdj.width;
}
if ((newPos.y + newBlockAdj.height) * game.Block.Block_Height > picField.Height)
{
return;
}
if (game.check_for_collision(new Point(newPos.x, newPos.y), newBlockAdj))
{
// try counter-clockwise
newBlockAdj = game.Block.Block_Rotation(game.Block.rotationType(1));
if ((newPos.x + newBlockAdj.width) * game.Block.Block_Width > picField.Width)
{
newPos.x = picField.Width / game.Block.Block_Width - newBlockAdj.width;
}
if ((newPos.y + newBlockAdj.height) * game.Block.Block_Height > picField.Height)
{
return;
}
if (game.check_for_collision(new Point(newPos.x, newPos.y), newBlockAdj))
{
check_for_rotation = false;
}
else
{
check_for_rotation = true;
}
}
else
{
check_for_rotation = true;
}
if (check_for_rotation)
{
if (scren_dimensions.bottom.Equals(newBlockAdj.bottom) &&
scren_dimensions.top.Equals(newBlockAdj.top) &&
scren_dimensions.width.Equals(newBlockAdj.width) &&
scren_dimensions.height.Equals(newBlockAdj.height))
{
// nothing has changed, just leave it.
return;
}
// can rotate, apply the new settings.
scren_dimensions = newBlockAdj;
pt_obj = newPos;
isValidMove = true;
}
else
{
// can't rotate, restore old angle.
game.Block.Block_Rotation(saveAngle);
return;
}
break;
}
if (!(e.KeyCode.Equals(Keys.Space) || e.KeyCode.Equals(Keys.Up)))
{
if (!game.check_for_collision(new Point(newPos.x, newPos.y), scren_dimensions))
{
pt_obj = newPos;
isValidMove = true;
}
}
if (isValidMove)
{
picField.Invalidate();
}
}
public void set_block_position(ref ScreenDimensions wr, bool[] array_for_blocks_creation)
{
wr = new ScreenDimensions();
bool check_for_block_position;
int rows, columns;
check_for_block_position = true;
for (columns = 0; columns < tile_size; columns++)
{
for (rows = 0; rows < tile_size; rows++)
{
if (array_for_blocks_creation[columns + rows * tile_size])
{
check_for_block_position = false;
break;
}
}
if (check_for_block_position)
{
wr.bottom++;
}
else
{
break;
}
}
check_for_block_position = true;
for (rows = 0; rows < tile_size; rows++)
{
for (columns = 0; columns < tile_size; columns++)
{
if (array_for_blocks_creation[columns + rows * tile_size])
{
check_for_block_position = false;
break;
}
}
if (check_for_block_position)
{
wr.top++;
}
else
{
break;
}
}
check_for_block_position = true;
for (columns = tile_size - 1; columns >= 0; columns--)
{
for (rows = 0; rows < tile_size; rows++)
{
if (array_for_blocks_creation[columns + rows * tile_size])
{
check_for_block_position = false;
break;
}
}
if (check_for_block_position)
{
wr.width++;
}
else
{
break;
}
}
wr.width = tile_size - (wr.bottom + wr.width); //exact width of block
check_for_block_position = true;
for (rows = tile_size - 1; rows >= 0; rows--)
{
for (columns = 0; columns < tile_size; columns++)
{
if (array_for_blocks_creation[columns + rows * tile_size])
{
check_for_block_position = false;
break;
}
}
if (check_for_block_position)
{
wr.height++;
}
else
{
break;
}
}
wr.height = tile_size - (wr.top + wr.height); //exact height of block
}
public void set_block_position(ref ScreenDimensions wr)
{
set_block_position(ref wr, tiles_array);
}