// draw the piece on the canvas func (self *MainWindow) DrawPiece(cr *cairo.Context, x, y float64, color []float64) { x, y = self.getPiecePosition(x, y) x = x + 40 y = y + 30 cr.Arc(x, y, 20, 0, 2*3.14) cr.SetSourceRGB(color[0], color[1], color[2]) cr.Fill() }
func drawTable(area *gtk.DrawingArea, cr *cairo.Context, side int, cells []int) { u := w.cellSize.GetValue() w := area.GetAllocatedWidth() h := area.GetAllocatedHeight() bg := cellColor[cellPrevious] cr.SetSourceRGB(bg[0], bg[1], bg[2]) cr.Rectangle(1, 1, float64(w-2), float64(h-2)) cr.Fill() for k, cell := range cells[1:] { color := cellColor[cell] x, y := float64(k/side), float64(k%side) cr.SetSourceRGB(color[0], color[1], color[2]) cr.Rectangle(2+x*u, 2+y*u, u, u) cr.Fill() } }
// Draws and re-draws the board func (self *MainWindow) drawBoard(da *gtk.DrawingArea, cr *cairo.Context) bool { for i := 0; i < self.boardSize; i++ { for j := 0; j < self.boardSize; j++ { x := float64(j) * self.tileWidth y := float64(i) * self.tileHeight if (i % 2) == (j % 2) { cr.Rectangle(x, y, self.tileWidth, self.tileHeight) cr.SetSourceRGB(0.5, 0.3, 0) cr.Fill() } else { cr.Rectangle(x, y, self.tileWidth, self.tileHeight) cr.SetSourceRGB(0.2, 0, 0) cr.Fill() } } } // Draw pieces for i, row := range self.Board.Places { for j, col := range row { if col != nil { if col.Selected { self.DrawSelector(cr, float64(i), float64(j)) } if col.Team == board.RED { self.DrawPiece(cr, float64(i), float64(j), RED) } else { self.DrawPiece(cr, float64(i), float64(j), BLACK) } } } } self.drawScores() return false }