New method of checking the tank falling direction.

New table "SlideLeftTable" (8 bytes) instead "WhereToSlideTable" (256 bytes)
But procedure is not optimal - we need to write a new version.

And now, falling diagonally doesn't take any more energy.
This commit is contained in:
Pecusx
2022-06-28 20:01:24 +02:00
parent d5c1e1e397
commit 4a32abdc83
4 changed files with 59 additions and 275 deletions
+10 -264
View File
@@ -210,270 +210,16 @@ disktance ;tanks distance
; this table is for deciding where a tank should slide ; this table is for deciding where a tank should slide
; accordingly to what is below the tank ; accordingly to what is below the tank
; there are 3 bits used here ; values in table mean that tank is moving to the left
; bit 0 - go down SlideLeftTable
; bit 1 - go left .BY %00000001
; bit 2 - go right .BY %00000010
; position in the table equals to bit pattern of soil below tank .BY %00000011
.BY %00000100
WhereToSlideTable .BY %00000101
; we have 3 bits, when set: 2 - go left, 1 - go right, 0 - go down .BY %00000110
.BY %001 ; 00000000 .BY %00000111
.BY %101 ; 00000001 .BY %00001100
.BY %100 ; 00000010
.BY %100 ; 00000011
.BY %100 ; 00000100
.BY %100 ; 00000101
.BY %100 ; 00000110
.BY %100 ; 00000111
.BY %000 ; 00001000
.BY %000 ; 00001001
.BY %000 ; 00001010
.BY %000 ; 00001011
.BY %100 ; 00001100
.BY %000 ; 00001101
.BY %000 ; 00001110
.BY %000 ; 00001111
.BY %000 ; 00010000
.BY %000 ; 00010001
.BY %000 ; 00010010
.BY %000 ; 00010011
.BY %000 ; 00010100
.BY %000 ; 00010101
.BY %000 ; 00010110
.BY %000 ; 00010111
.BY %000 ; 00011000
.BY %000 ; 00011001
.BY %000 ; 00011010
.BY %000 ; 00011011
.BY %000 ; 00011100
.BY %000 ; 00011101
.BY %000 ; 00011110
.BY %000 ; 00011111
.BY %010 ; 00100000
.BY %000 ; 00100001
.BY %000 ; 00100010
.BY %000 ; 00100011
.BY %000 ; 00100100
.BY %000 ; 00100101
.BY %000 ; 00100110
.BY %000 ; 00100111
.BY %000 ; 00101000
.BY %000 ; 00101001
.BY %000 ; 00101010
.BY %000 ; 00101011
.BY %000 ; 00101100
.BY %000 ; 00101101
.BY %000 ; 00101110
.BY %000 ; 00101111
.BY %010 ; 00110000
.BY %000 ; 00110001
.BY %000 ; 00110010
.BY %000 ; 00110011
.BY %000 ; 00110100
.BY %000 ; 00110101
.BY %000 ; 00110110
.BY %000 ; 00110111
.BY %000 ; 00111000
.BY %000 ; 00111001
.BY %000 ; 00111010
.BY %000 ; 00111011
.BY %000 ; 00111100
.BY %000 ; 00111101
.BY %000 ; 00111110
.BY %000 ; 00111111
.BY %010 ; 01000000
.BY %000 ; 01000001
.BY %000 ; 01000010
.BY %000 ; 01000011
.BY %000 ; 01000100
.BY %000 ; 01000101
.BY %000 ; 01000110
.BY %000 ; 01000111
.BY %000 ; 01001000
.BY %000 ; 01001001
.BY %000 ; 01001010
.BY %000 ; 01001011
.BY %000 ; 01001100
.BY %000 ; 01001101
.BY %000 ; 01001110
.BY %000 ; 01001111
.BY %000 ; 01010000
.BY %000 ; 01010001
.BY %000 ; 01010010
.BY %000 ; 01010011
.BY %000 ; 01010100
.BY %000 ; 01010101
.BY %000 ; 01010110
.BY %000 ; 01010111
.BY %000 ; 01011000
.BY %000 ; 01011001
.BY %000 ; 01011010
.BY %000 ; 01011011
.BY %000 ; 01011100
.BY %000 ; 01011101
.BY %000 ; 01011110
.BY %000 ; 01011111
.BY %010 ; 01100000
.BY %000 ; 01100001
.BY %000 ; 01100010
.BY %000 ; 01100011
.BY %000 ; 01100100
.BY %000 ; 01100101
.BY %000 ; 01100110
.BY %000 ; 01100111
.BY %000 ; 01101000
.BY %000 ; 01101001
.BY %000 ; 01101010
.BY %000 ; 01101011
.BY %000 ; 01101100
.BY %000 ; 01101101
.BY %000 ; 01101110
.BY %000 ; 01101111
.BY %000 ; 01110000
.BY %000 ; 01110001
.BY %000 ; 01110010
.BY %000 ; 01110011
.BY %000 ; 01110100
.BY %000 ; 01110101
.BY %000 ; 01110110
.BY %000 ; 01110111
.BY %000 ; 01111000
.BY %000 ; 01111001
.BY %000 ; 01111010
.BY %000 ; 01111011
.BY %000 ; 01111100
.BY %000 ; 01111101
.BY %000 ; 01111110
.BY %000 ; 01111111
.BY %011 ; 10000000
.BY %000 ; 10000001
.BY %000 ; 10000010
.BY %000 ; 10000011
.BY %000 ; 10000100
.BY %000 ; 10000101
.BY %000 ; 10000110
.BY %000 ; 10000111
.BY %000 ; 10001000
.BY %000 ; 10001001
.BY %000 ; 10001010
.BY %000 ; 10001011
.BY %000 ; 10001100
.BY %000 ; 10001101
.BY %000 ; 10001110
.BY %000 ; 10001111
.BY %000 ; 10010000
.BY %000 ; 10010001
.BY %000 ; 10010010
.BY %000 ; 10010011
.BY %000 ; 10010100
.BY %000 ; 10010101
.BY %000 ; 10010110
.BY %000 ; 10010111
.BY %000 ; 10011000
.BY %000 ; 10011001
.BY %000 ; 10011010
.BY %000 ; 10011011
.BY %000 ; 10011100
.BY %000 ; 10011101
.BY %000 ; 10011110
.BY %000 ; 10011111
.BY %010 ; 10100000
.BY %000 ; 10100001
.BY %000 ; 10100010
.BY %000 ; 10100011
.BY %000 ; 10100100
.BY %000 ; 10100101
.BY %000 ; 10100110
.BY %000 ; 10100111
.BY %000 ; 10101000
.BY %000 ; 10101001
.BY %000 ; 10101010
.BY %000 ; 10101011
.BY %000 ; 10101100
.BY %000 ; 10101101
.BY %000 ; 10101110
.BY %000 ; 10101111
.BY %000 ; 10110000
.BY %000 ; 10110001
.BY %000 ; 10110010
.BY %000 ; 10110011
.BY %000 ; 10110100
.BY %000 ; 10110101
.BY %000 ; 10110110
.BY %000 ; 10110111
.BY %000 ; 10111000
.BY %000 ; 10111001
.BY %000 ; 10111010
.BY %000 ; 10111011
.BY %000 ; 10111100
.BY %000 ; 10111101
.BY %000 ; 10111110
.BY %000 ; 10111111
.BY %010 ; 11000000
.BY %000 ; 11000001
.BY %000 ; 11000010
.BY %000 ; 11000011
.BY %000 ; 11000100
.BY %000 ; 11000101
.BY %000 ; 11000110
.BY %000 ; 11000111
.BY %000 ; 11001000
.BY %000 ; 11001001
.BY %000 ; 11001010
.BY %000 ; 11001011
.BY %000 ; 11001100
.BY %000 ; 11001101
.BY %000 ; 11001110
.BY %000 ; 11001111
.BY %000 ; 11010000
.BY %000 ; 11010001
.BY %000 ; 11010010
.BY %000 ; 11010011
.BY %000 ; 11010100
.BY %000 ; 11010101
.BY %000 ; 11010110
.BY %000 ; 11010111
.BY %000 ; 11011000
.BY %000 ; 11011001
.BY %000 ; 11011010
.BY %000 ; 11011011
.BY %000 ; 11011100
.BY %000 ; 11011101
.BY %000 ; 11011110
.BY %000 ; 11011111
.BY %010 ; 11100000
.BY %000 ; 11100001
.BY %000 ; 11100010
.BY %000 ; 11100011
.BY %000 ; 11100100
.BY %000 ; 11100101
.BY %000 ; 11100110
.BY %000 ; 11100111
.BY %000 ; 11101000
.BY %000 ; 11101001
.BY %000 ; 11101010
.BY %000 ; 11101011
.BY %000 ; 11101100
.BY %000 ; 11101101
.BY %000 ; 11101110
.BY %000 ; 11101111
.BY %000 ; 11110000
.BY %000 ; 11110001
.BY %000 ; 11110010
.BY %000 ; 11110011
.BY %000 ; 11110100
.BY %000 ; 11110101
.BY %000 ; 11110110
.BY %000 ; 11110111
.BY %000 ; 11111000
.BY %000 ; 11111001
.BY %000 ; 11111010
.BY %000 ; 11111011
.BY %000 ; 11111100
.BY %000 ; 11111101
.BY %000 ; 11111110
.BY %000 ; 11111111
EndOfTheBarrelX EndOfTheBarrelX
; right angles from 0 (vertically up) to 90 (horizontally to the right) ; right angles from 0 (vertically up) to 90 (horizontally to the right)
+3
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@@ -73,6 +73,9 @@
.zpvar dd .word .zpvar dd .word
.zpvar di .word .zpvar di .word
.zpvar dp .word .zpvar dp .word
;----------------------------
.zpvar UnderTank1 .byte
.zpvar UnderTank2 .byte
;---------------------------- ;----------------------------
.zpvar weaponPointer .word .zpvar weaponPointer .word
.zpvar dliCounter .byte .zpvar dliCounter .byte
BIN
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Binary file not shown.
+46 -11
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@@ -1388,23 +1388,58 @@ TankFallsX
; time in our lives! Tada! It opens a new chapter!!! ; time in our lives! Tada! It opens a new chapter!!!
sta ydraw sta ydraw
; ;
; lda #0
; sta UnderTank1 ; byte under tank
; sta UnderTank2 ; byte under tank reversed (for simple check right direction)
lda #08 lda #08
sta mask2 ; Loop Counter sta temp ; Loop Counter
ByteBelowTank ByteBelowTank
jsr point jsr point
beq EmptyPoint2 beq EmptyPoint2
sec
ror UnderTank2
sec sec
bcs ROLPoint2 bcs ROLPoint2
EmptyPoint2 EmptyPoint2
clc clc
ror UnderTank2
clc
ROLPoint2 ROLPoint2
rol mask1 rol UnderTank1
inw xdraw inw xdraw
dec mask2 dec temp
bne ByteBelowTank bne ByteBelowTank
ldx mask1 ldx #0
lda WhereToSlideTable,x lda UnderTank1
sta IfFallDown ; taking directions of falling down from the table bne NotDown
inx ; set bit 0 - go down
NotDown
stx IfFallDown
; now we must check falling direction
ldx #7 ; SlideLeftTable length -1 (from 0 to 7)
@ lda SlideLeftTable,x
cmp UnderTank1
beq SetLeftBit
cmp UnderTank2
beq SetRightBit
dex
bpl @-
bmi NoLeftOrRight
SetLeftBit
lda IfFallDown
ora #%100 ; set bit 2 - go left
bne @+
SetRightBit
lda IfFallDown
ora #%010 ; set bit 1 - go right
@ sta IfFallDown
cpx #0
bne InfinityLoopFix
ora #%001 ; temporary fix!!! for %10000000 and %00000001
sta IfFallDown
InfinityLoopFix
NoLeftOrRight
lda IfFallDown ; taking directions of falling down from the table
bne ItStillFalls bne ItStillFalls
; Tank falling down already finished, but it is not sure that ; Tank falling down already finished, but it is not sure that
; the horizontal coordinate is even. ; the horizontal coordinate is even.
@@ -1433,11 +1468,11 @@ ItStillFalls
beq NoFallingDown beq NoFallingDown
ldx TankNr ldx TankNr
jsr DecreaseEnergyX jsr DecreaseEnergyX
lda IfFallDown ; lda IfFallDown
and #6 ; and #%110
bne FallDiagonally ; bne FallDiagonally
ldx TankNr ; ldx TankNr
jsr DecreaseEnergyX ; jsr DecreaseEnergyX
FallDiagonally FallDiagonally
NoFallingDown NoFallingDown
ParachutePresent ParachutePresent