static bool move_piece_to_column_center(TrnPiece * const piece,
TrnGame const * const game)
{
int columnIndex = (game->grid->numberOfColumns -
TRN_TETROMINO_GRID_SIZE)/2;
piece->topLeftCorner.columnIndex = columnIndex;
bool success = trn_grid_can_set_cells_with_piece(game->grid,game->current_piece);
trn_grid_fill_piece(game->grid, game->current_piece);
return success;
}
bool trn_game_try_to_move(TrnGame* game,void (*move)(TrnPiece * const),
void (*unmove)(TrnPiece * const))
{
if (game->status != TRN_GAME_ON)
return false;
bool managedToMove = true;
trn_grid_remove_piece(game->grid, game->current_piece);
move(game->current_piece);
if (! trn_grid_can_set_cells_with_piece(game->grid, game->current_piece)) {
managedToMove = false;
unmove(game->current_piece);
}
trn_grid_fill_piece(game->grid, game->current_piece);
return managedToMove;
}
void TestGridCanSetCellsWithPiece()
{
/* Reminder on tetromino_srs_i at TRN_ANGLE_0 and TRN_ANGLE_90:
T---+---+---+---+
| | | 9| | T: topLeftCorner position in grid
+---+---+---+---+ 0: tetromino cells a TRN_ANGLE_0
| 0 | 0 | 01| 0 | 9: tetromino cells a TRN_ANGLE_90
+---+---+---+---+
| | | 9| |
+---+---+---+---+
| | | 9| |
+---+---+---+---+
*/
// Create a grid.
int numberOfRows = 10;
int numberOfColumns = 10;
TrnGrid* grid = trn_grid_new(numberOfRows, numberOfColumns);
// For now, the grid has only void cells.
// Ok, in grid and void.
TrnPiece piece0 = trn_piece_create(TRN_TETROMINO_I,0,0,TRN_ANGLE_0);
CU_ASSERT_TRUE( trn_grid_can_set_cells_with_piece(grid, &piece0) )
// Ok, still in grid (in the first row).
TrnPiece piece1 = trn_piece_create(TRN_TETROMINO_I,-1,0,TRN_ANGLE_0);
CU_ASSERT_TRUE( trn_grid_can_set_cells_with_piece(grid, &piece1) )
// No more in grid.
TrnPiece piece2 = trn_piece_create(TRN_TETROMINO_I,-2,0,TRN_ANGLE_0);
CU_ASSERT_FALSE( trn_grid_can_set_cells_with_piece(grid, &piece2) )
// Ok, in grid and void.
TrnPiece piece3 = trn_piece_create(TRN_TETROMINO_I,5,0,TRN_ANGLE_90);
CU_ASSERT_TRUE( trn_grid_can_set_cells_with_piece(grid, &piece3) )
// Ok, still in grid (in the first column).
TrnPiece piece4 = trn_piece_create(TRN_TETROMINO_I,5,-2,TRN_ANGLE_90);
CU_ASSERT_TRUE( trn_grid_can_set_cells_with_piece(grid, &piece4) )
// No more in grid.
TrnPiece piece5 = trn_piece_create(TRN_TETROMINO_I,5,-3,TRN_ANGLE_90);
CU_ASSERT_FALSE( trn_grid_can_set_cells_with_piece(grid, &piece5) )
// Now, fill the last grid row with non-void tetrominos.
TrnPositionInGrid pos;
int columnIndex;
pos.rowIndex = numberOfRows-1 ;
for (columnIndex = 0 ; columnIndex < grid->numberOfColumns ; columnIndex++) {
pos.columnIndex = columnIndex;
trn_grid_set_cell(grid, pos, TRN_TETROMINO_I);
}
// Ok, in grid and void.
TrnPiece piece6 = trn_piece_create(TRN_TETROMINO_I,0,0,TRN_ANGLE_90);
CU_ASSERT_TRUE( trn_grid_can_set_cells_with_piece(grid, &piece6) )
// Still in grid and void, just above the non-void row.
TrnPiece piece7 = trn_piece_create(TRN_TETROMINO_I,numberOfRows-5,0,TRN_ANGLE_90);
CU_ASSERT_TRUE( trn_grid_can_set_cells_with_piece(grid, &piece7) )
// In grid, but last cell of piece overlap a non-void cell of the grid.
TrnPiece piece8 = trn_piece_create(TRN_TETROMINO_I,numberOfRows-4,0,TRN_ANGLE_90);
CU_ASSERT_FALSE( trn_grid_can_set_cells_with_piece(grid, &piece8) )
}
