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Bugfix: bresenham when uniting rooms

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This commit is contained in:
Christophe Meneboeuf 2020-10-23 22:21:08 +02:00
parent 4da93af1cb
commit abbd59fd9e
5 changed files with 55 additions and 28 deletions
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BIN
escape.dsk
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4
src/builder/builder.asm
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@ -82,8 +82,8 @@ choice_size_maze:
tst_tiny:
cmp #$C1
bne tst_small
ldx #16
ldy #16
ldx #20
ldy #20
rts
tst_small:
cmp #$C2

69
src/builder/unite.asm
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@ -365,8 +365,8 @@ Unite_Rooms:
.define DELTA_Y ZERO_5_3
.define DELTA_X_2 ZERO_5_5
.define DELTA_Y_2 ZERO_5_6
.define ROOM_Y ZERO_7_1
.define ROOM_X ZERO_7_2
.define ROOM_Y ZERO_8_1
.define ROOM_X ZERO_8_2
.define D ZERO_3
.define ROOM_FOUND SAVE_X
_Connect_Room:
@ -374,7 +374,7 @@ _Connect_Room:
; d = 0
lda #0
sta D
; delta_y = zone1_y - room->y
ldx ROOM_FOUND
lda Rooms, X
@ -403,6 +403,7 @@ _Connect_Room:
sta DELTA_X
end_abs_x:
; int dx2 = 2 * dx
lda DELTA_X
asl
sta DELTA_X_2
@ -416,6 +417,7 @@ _Connect_Room:
sta DELTA_Y
end_abs_y:
; int dy2 = 2 * dy
lda DELTA_Y
asl
sta DELTA_Y_2
@ -470,6 +472,18 @@ _Connect_Room:
bcc d_infequal_dx
beq d_infequal_dx
; if (d > dx)
; if (*ptr_room != zone_nr && *ptr_room <= WALKABLE) break;
lda (PTR_ROOM), Y ; Y = 0
cmp ZONE_NR
beq continue_1a
cmp #ACTORS::WALKABLE
beq end
bpl continue_1a
jmp end
continue_1a:
; *ptr_room = zone_nr
lda ZONE_NR
sta (PTR_ROOM), Y ; Y = 0
; ptr_room += iy
patch_iy1:
ADD16 PTR_ROOM, #WIDTH_WORLD
@ -482,15 +496,25 @@ _Connect_Room:
; if (*ptr_room != zone_nr && *ptr_room <= WALKABLE) break;
lda (PTR_ROOM), Y ; Y = 0
cmp ZONE_NR
beq continue_1
beq continue_1b
cmp #ACTORS::WALKABLE
beq end
bpl continue_1
bpl continue_1b
jmp end
continue_1:
continue_1b:
lda ZONE_NR
sta (PTR_ROOM), Y ; Y = 0
jmp while_1
; end label in the middle to be reachable by the branches
end:
; flood fills works on ptr_tile
ldx #(ZONE_0 + 1)
lda ZONE_NR
jsr _Flood_Fill
rts
dy_sup:
while_2:
; ptr_room += iy
@ -504,8 +528,20 @@ _Connect_Room:
cmp DELTA_Y
bcc d_infequal_dy
beq d_infequal_dy
;if (d > dy) {
;ptr_room += ix;
; if (d > dy) {
; if (*ptr_room != zone_nr && *ptr_room <= WALKABLE) break;
lda (PTR_ROOM), Y ; Y = 0
cmp ZONE_NR
beq continue_2a
cmp #ACTORS::WALKABLE
beq end
bpl continue_2a
jmp end
continue_2a:
; *ptr_room = zone_nr
lda ZONE_NR
sta (PTR_ROOM), Y ; Y = 0
; ptr_room += ix;
patch_ix2:
ADD16 PTR_ROOM, #1
; d -= dy2
@ -517,21 +553,12 @@ _Connect_Room:
; (*ptr_room != zone_nr && *ptr_room <= WALKABLE)
lda (PTR_ROOM), Y ; Y = 0
cmp ZONE_NR
beq continue_2
beq continue_2b
cmp #ACTORS::WALKABLE
beq end
bpl continue_2
bpl continue_2b
jmp end
continue_2:
continue_2b:
lda ZONE_NR
sta (PTR_ROOM), Y ; Y = 0
jmp while_2
end:
; flood fills works on ptr_tile
ldx #(ZONE_0 + 1)
lda ZONE_NR
jsr _Flood_Fill
rts
jmp while_2

8
src/main.asm
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@ -67,13 +67,13 @@ _main:
jsr Title ; will init the seed
; overwrite the seed to debug
; lda #$E6
; lda #$55
; sta SEED0
; lda #$CE
; lda #$67
; sta SEED1
; lda #$AD
; lda #$8C
; sta SEED2
; lda #$03
; lda #$5F
; sta SEED3
jsr Random8_Init

2
src/world.asm
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@ -114,7 +114,7 @@ world_set_player:
rts
; Destroys ZERO_2_1, ZERO_2_2 and ZERO_2_3
; Destroys ZERO_2_1, ZERO_2_2, ZERO_2_3 ZERO_7_1 and ZERO_7_2
Compute_Maze_Addr:
stx COORD_X