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- include_macros equ 1
- include_deb_mac equ 1
- include_error_codes equ 1
- include include.asm
- start32data
- align 4
- game_grid dd ? ;set bit 7 for re-create
- ;set bit 0 for flip
- end32data
- start32code
- extrn load_file:near
- extrn my_free:near
- re_create proc
- ; Check the game grid for blocks that have changed
- mov eax,[layer_0_id]
- jife eax,no_recreate
- fetch_item
- cherror esi,e,0,em_internal_error
- mov edi,[backscreen]
- mov ebx,[game_grid]
- mov dh,GRID_Y
- create_loop_y: push edi
- mov dl,GRID_X
- create_loop_x: btr wpt [ebx],7 ;test and reset re-create flag
- jnc not_block
- bts wpt [ebx],0 ;set for flip routine
- push edi
- push esi
- mov eax,GRID_H
- block_loop: push edi
- mov ecx,GRID_W/4
- rep movsd
- pop edi
- add edi,game_screen_width
- dec eax
- jne block_loop
- pop esi
- pop edi
- not_block: inc ebx
- add esi,GRID_W*GRID_H
- add edi,GRID_W
- dec dl
- jne create_loop_x
- pop edi
- add edi,GRID_H*game_screen_width
- dec dh
- jne create_loop_y
- no_recreate: ret
- re_create endp
- end32code
- end
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