int CHRs_optimization(tiles_data _data, bool _check)
{
int deleted_CHRs_cnt = 0;
int CHR_data_sum;
byte[] img_buff = new byte[utils.CONST_SPR8x8_TOTAL_PIXELS_CNT];
int size_offs;
int size = _data.get_first_free_spr8x8_id(false);
for (int CHR_n = 0; CHR_n < size; CHR_n++)
{
if (check_blocks_CHR(CHR_n, _data) == false)
{
CHR_data_sum = _data.spr8x8_sum(CHR_n);
if (CHR_data_sum != 0)
{
++deleted_CHRs_cnt;
}
if (_check == true)
{
continue;
}
// delete useless CHR
{
size_offs = platform_data.get_CHR_bank_max_sprites_cnt() - 1;
for (int i = CHR_n; i < size_offs; i++)
{
_data.from_CHR_bank_to_spr8x8(i + 1, img_buff, 0);
_data.from_spr8x8_to_CHR_bank(i, img_buff);
}
}
// the last CHR is an empty space
{
#if DEF_ZX
for (int i = 0; i < img_buff.Length; i++)
{
img_buff[i] = utils.CONST_ZX_DEFAULT_PAPER_COLOR;
}
#else
Array.Clear(img_buff, 0, utils.CONST_SPR8x8_TOTAL_PIXELS_CNT);
#endif
_data.from_spr8x8_to_CHR_bank(platform_data.get_CHR_bank_max_sprites_cnt() - 1, img_buff);
}
shift_CHRs_data(CHR_n, _data);
--CHR_n;
--size;
}
}
return(deleted_CHRs_cnt);
}
public int block_reserve_CHRs(int _block_ind, data_sets_manager _data_manager)
{
int CHR_pos = 0;
ushort block_data = 0;
if (_block_ind >= 0)
{
tiles_data data = _data_manager.get_tiles_data(_data_manager.tiles_data_pos);
if (data.block_sum(_block_ind) != 0)
{
if (MainForm.message_box("All the block's CHR links will be replaced!", "Reserve CHRs", MessageBoxButtons.OKCancel, MessageBoxIcon.Warning) == DialogResult.Cancel)
{
return(-1);
}
}
// reset block's links
for (int i = 0; i < utils.CONST_BLOCK_SIZE; i++)
{
data.blocks[(_block_ind << 2) + i] = 0;
}
int ff_block_ind = data.get_first_free_block_id(false) << 2;
ff_block_ind = ff_block_ind < 4 ? 4:ff_block_ind;
int block_n;
for (int CHR_n = 1; CHR_n < platform_data.get_CHR_bank_max_sprites_cnt(); CHR_n++)
{
if (data.spr8x8_sum(CHR_n) == 0)
{
for (block_n = 4; block_n < ff_block_ind; block_n++)
{
if (tiles_data.get_block_CHR_id(data.blocks[block_n]) == CHR_n)
{
break;
}
}
if (block_n == ff_block_ind || ff_block_ind == 4)
{
data.blocks[(_block_ind << 2) + CHR_pos++] = tiles_data.set_block_CHR_id(CHR_n, block_data);
if (CHR_pos == utils.CONST_BLOCK_SIZE)
{
m_block_editor.set_selected_block(_block_ind, data);
MainForm.set_status_msg(String.Format("Block Editor: Block #{0:X2} data reserved", _block_ind));
return(1);
}
}
}
}
MainForm.message_box("Block Editor: CHR bank is full!", "Reserve Blocks", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
return(-1);
}