X-Git-Url: http://git.shiar.nl/wormy.git/blobdiff_plain/54d931866662bf71f98abcac4cfdaa6b5158e1b1..8fff5ad3c104f2936efec10bd4278491321865a1:/line.asm diff --git a/line.asm b/line.asm deleted file mode 100644 index 0c9cbfa..0000000 --- a/line.asm +++ /dev/null @@ -1,95 +0,0 @@ -Line: - push hl - push de - ld a,d - cp h - jr c,LineOrdered - ex de,hl -LineOrdered: - ld b,d - ld c,e - push hl - push bc - call FindPixel - pop bc - pop de -ConnectedLine: - push hl - ld h,c - ld c,a - ld a,d - sub b - ld b,a - ld a,e - jr nz,LineNotPoint - cp h - jr nz,LineNotPoint - pop hl - jr DoneLine -LineNotPoint: - sub h - ld de,16 - jr nc,LinePositiveY - neg - ld de,-16 -LinePositiveY: - cp b - jr nc,SteepLine - add a,a - ld (Line2sm+1),a - ld h,a - xor a - sub b - add a,a - ld (Line1sm+1),a - ld a,h - sub b - pop hl -LineLoopGentle: - push af - ld a,(hl) - or c - ld (hl),a - rrc c - jr nc,$+3 - inc hl - pop af - jp m,Line2sm -Line1sm add a,0 - add hl,de -Line2sm add a,0 - djnz LineLoopGentle -DoneLine: - ld a,(hl) - or c - ld (hl),a - pop de - pop hl - ret - -SteepLine: - ld h,a - neg - add a,a - ld (Line3sm+1),a - ld a,b - add a,a - ld (Line4sm+1),a - sub h - ld b,h - pop hl -LineLoopSteep: - push af - ld a,(hl) - or c - ld (hl),a - add hl,de - pop af - jp m,Line4sm -Line3sm add a,0 - rrc c - jr nc,$+3 - inc hl -Line4sm add a,0 - djnz LineLoopSteep - jr DoneLine