mirror of
https://github.com/Pecusx/scorch_src.git
synced 2026-05-21 06:39:40 +02:00
Besto of the best laser
And code ordering.
This commit is contained in:
Pecusx
+251
@@ -890,6 +890,257 @@ ShieldVisible
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bne @-
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rts
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.endp
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;--------------------------------------------------
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.proc DrawTankParachute
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;Tank number in X
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;--------------------------------------------------
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lda #$34 ; parachute symbol
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sta CharCode
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lda Ytankstable,x
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sec
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sbc #8
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sta ydraw
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lda XtanksTableL,x
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sta xdraw
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lda XtanksTableH,x
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sta xdraw+1
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jsr TypeChar
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rts
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.endp
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;--------------------------------------------------
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.proc TankFalls;
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;--------------------------------------------------
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lda #0
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sta PreviousFall ; bit 7 - left, bit 6 - right
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sta EndOfTheFallFlag
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sta Parachute
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mva #2 FallingSoundBit ; another trick for only one sfx initialization in loop
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; let's check if the given tank has got the parachute
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ldx TankNr
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lda ActiveDefenceWeapon,x
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cmp #ind_Parachute______ ; parachute
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beq ParachuteActive
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cmp #ind_StrongParachute ; strong parachute
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beq ParachuteActive
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cmp #ind_Force_Shield___ ; shield witch energy and parachute
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bne TankFallsX
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ParachuteActive
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inc Parachute
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TankFallsX
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; sound only if really falls
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lda Parachute
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and FallingSoundBit ; bit 1
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beq NoFallingSound
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mva #0 FallingSoundBit
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mva #sfx_shield_off sfx_effect
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NoFallingSound
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; clear previous position
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mva #1 Erase
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jsr DrawTankNr
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; and the parachute (if present)
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lda Parachute
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and #01
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beq DoNotClearParachute
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; here we clear the parachute
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ldx TankNr
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jsr DrawTankParachute
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DoNotClearParachute
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mva #0 Erase
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ldx TankNr
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lda EndOfTheFallFlag ; We only get byte below the tank if still falling
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bne NoGroundCheck
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; coordinates of the first pixel under the tank
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ldx TankNr
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lda XtankstableL,x
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sta xdraw
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lda XtankstableH,x
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sta xdraw+1
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lda Ytankstable,x
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clc
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adc #1 ; in this point the comment helped us! For the very first
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; time in our lives! Tada! It opens a new chapter!!!
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sta ydraw
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;
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; UnderTank1 ; byte under tank
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; UnderTank2 ; byte under tank reversed (for simple check right direction)
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lda #08
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sta temp ; Loop Counter
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ByteBelowTank
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jsr point
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beq EmptyPoint2
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sec
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ror UnderTank2
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sec
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bcs ROLPoint2
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EmptyPoint2
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clc
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ror UnderTank2
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clc
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ROLPoint2
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rol UnderTank1
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inw xdraw
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dec temp
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bne ByteBelowTank
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NoGroundCheck
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ldx TankNr
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lda UnderTank1
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bne NoFallingDown
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; Tank falling down ----
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lda Parachute
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and #1
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bne ParachutePresent
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; decreasing energy
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ldy #2 ; how much energy to substract
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jsr DecreaseEnergyX
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ParachutePresent
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; check parachute type
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lda ActiveDefenceWeapon,x
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cmp #ind_StrongParachute ; strong parachute
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bne OneTimeParachute
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; decreasing energy of parachute
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ldy #2 ; how much energy to substract
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jsr DecreaseShieldEnergyX
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cpy #0 ; is necessary to reduce tenk energy ?
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beq @+
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jsr DecreaseEnergyX
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@
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; check energy of parachute
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lda ShieldEnergy,x
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bne OneTimeParachute
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mva #0 Parachute
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mva #0 ActiveDefenceWeapon,x ; deactivate defence
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OneTimeParachute
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lda Parachute
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ora #2 ; we set bit nr 1 (nr 0 means that parachute is present)
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sta Parachute
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; tank is falling down - modify coorinates
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lda Ytankstable,x
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clc
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adc #1
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sta Ytankstable,x
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jmp EndOfFCycle
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NoFallingDown
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; check direction (left or right)
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ldy #7 ; SlideLeftTable length -1 (from 0 to 7)
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@ lda SlideLeftTable,y
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cmp UnderTank1
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beq FallingRight
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cmp UnderTank2
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beq FallingLeft
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dey
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bpl @-
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bmi NoLeftOrRight
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FallingLeft
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; tank is falling left
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bit PreviousFall ; bit 6 - right
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bvs EndLeftFall
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; we finish falling left if the tank reached the edge of the screen
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lda XtanksTableL,x
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bne NotLeftEdge
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lda XtanksTableH,x
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beq EndLeftFall
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NotLeftEdge
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; tank is falling left - modify coorinates
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clc
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lda XtankstableL,x
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adc #1
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sta XtankstableL,x
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lda XtankstableH,x
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adc #0
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sta XtankstableH,x
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mva #%10000000 PreviousFall ; set bit 7 - left
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bne EndOfFCycle
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FallingRight
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; tank is falling right
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bit PreviousFall ; bit 7 - left
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bmi EndRightFall
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; we finish falling right if the tank reached the edge of the screen
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clc
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lda XtanksTableL,x
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adc #$08 ; we'll check right side of the char
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sta temp
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lda XtanksTableH,x
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adc #0
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sta temp+1
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cpw temp #screenwidth
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beq EndRightFall
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; tank is falling right - modify coorinates
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sec
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lda XtankstableL,x
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sbc #1
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sta XtankstableL,x
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lda XtankstableH,x
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sbc #0
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sta XtankstableH,x
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mva #%01000000 PreviousFall ; set bit 6 - right
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bne EndOfFCycle
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EndLeftFall
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EndRightFall
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NoLeftOrRight
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inc EndOfTheFallFlag ; after this is shouldn't fall
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EndOfFCycle
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; draw tank on new position
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jsr DrawTankNr ; ew have TankNr in X (I hope :) )
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; checking is parachute present and if so, draw it
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lda Parachute
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cmp #3 ; parachute and falling
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bne DoNotDrawParachute
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; here we draw parachute
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ldx TankNr
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jsr DrawTankParachute
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wait ; onli if tank with patachute
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RapidFalling
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DoNotDrawParachute
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lda EndOfTheFallFlag
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jeq TankFallsX
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; Tank falling down already finished, but it is not sure that
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; the horizontal coordinate is even.
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; If it is odd then it must be corrected because otherwise
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; P/M graphics background would not look OK
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ldx TankNr
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lda XtanksTableL,x
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and #$01
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beq EndOfFall ; if it is even then it is the end
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; and if not, we push it one pixel the way it was falling before
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lda #%10000000 ; set "virtual ground" for right falling
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ldy #%00000001
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bit PreviousFall
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bmi ForceFallLeft
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tay ; tricky - replaces ldy #%10000000
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lda #%00000001 ; set "virtual ground" for left falling
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ForceFallLeft
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sta UnderTank1
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sty UnderTank2
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jne TankFallsX
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EndOfFall
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mva #1 Erase
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ldx TankNr
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; if tank was falling down having parachute,
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; we must deduct one parachute
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lda Parachute
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cmp #$03 ; was falling down and the parachute
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bne NoParachuteWeapon
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; first we check type of parachute
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lda ActiveDefenceWeapon,x
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cmp #ind_Parachute______ ; deactivate weapon only if parachute (54)
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bne NoParachuteWeapon
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mva #0 ActiveDefenceWeapon,x ; deactivate defence weapon (parachute)
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NoParachuteWeapon
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; now we clear parachute on the screen if present
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lda Parachute
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and #01
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beq ThereWasNoParachute
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jsr DrawTankParachute
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ThereWasNoParachute
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mva #0 Erase
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ldx TankNr
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jsr DrawTankNr ; redraw tank after erase parachute (exactly for redraw leaky schield :) )
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mva #sfx_silencer sfx_effect
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rts
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.endp
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;--------------------------------------------------
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.proc ClearPMmemory
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BIN
Binary file not shown.
@@ -197,6 +197,7 @@ vx03 .DS [5]
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MirvDown .DS [5] ; is given missile down?
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MirvMissileCounter .DS 1 ; missile Counter (mainly for X)
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SmokeTracerFlag .DS 1 ; if Smoketracer
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LaserFlag .DS 1 ; $ff if Laser
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XposFlag .DS 1 ; bullet positon X (0 - on screen , %1000000 - off-screen)
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YposFlag .DS 1 ; bullet positon Y (0 - on screen , %1000000 - over the screen , %0100000 - under the screen)
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;----------------------------------------------------
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+15
-261
@@ -655,7 +655,8 @@ DiggerCharacter
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.endp
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; ------------------------
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.proc laser
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; but where are xdraw and ydraw ???? !!!!
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; in xdraw and ydraw we have hit point coordinates
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; from Shoot/Flight procedures (invisible flight)
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; ------------------------
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ldx TankNr
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lda AngleTable,x
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@@ -1464,16 +1465,17 @@ RandomizeOffensiveText
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mva #1 plot4x4color
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jsr DisplayOffensiveTextNr
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mva #0 LaserFlag ; $ff - Laser
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ldx TankNr
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lda ActiveWeapon,x
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cmp #ind_Laser__________ ; laser
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bne NotStrongShoot
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; Laser: very strong - invisible - shot for laser beam end coordinates
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; Laser: (not)very strong - invisible - shot for laser beam end coordinates
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mva #0 color
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lda #7
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lda #1
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sta Force
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sta Force+1
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mva #$ff LaserFlag ; $ff - Laser
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bne AfterStrongShoot
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NotStrongShoot
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lda ForceTableL,x
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@@ -1528,257 +1530,6 @@ ShotUnderGround
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rts
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.endp
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;--------------------------------------------------
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.proc TankFalls;
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;--------------------------------------------------
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lda #0
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sta PreviousFall ; bit 7 - left, bit 6 - right
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sta EndOfTheFallFlag
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sta Parachute
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mva #2 FallingSoundBit ; another trick for only one sfx initialization in loop
|
||||
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||||
; let's check if the given tank has got the parachute
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ldx TankNr
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lda ActiveDefenceWeapon,x
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cmp #ind_Parachute______ ; parachute
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beq ParachuteActive
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cmp #ind_StrongParachute ; strong parachute
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beq ParachuteActive
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cmp #ind_Force_Shield___ ; shield witch energy and parachute
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bne TankFallsX
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ParachuteActive
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inc Parachute
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TankFallsX
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; sound only if really falls
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lda Parachute
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and FallingSoundBit ; bit 1
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beq NoFallingSound
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mva #0 FallingSoundBit
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mva #sfx_shield_off sfx_effect
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NoFallingSound
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; clear previous position
|
||||
mva #1 Erase
|
||||
jsr DrawTankNr
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||||
; and the parachute (if present)
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lda Parachute
|
||||
and #01
|
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beq DoNotClearParachute
|
||||
; here we clear the parachute
|
||||
ldx TankNr
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||||
jsr DrawTankParachute
|
||||
DoNotClearParachute
|
||||
mva #0 Erase
|
||||
ldx TankNr
|
||||
lda EndOfTheFallFlag ; We only get byte below the tank if still falling
|
||||
bne NoGroundCheck
|
||||
; coordinates of the first pixel under the tank
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||||
ldx TankNr
|
||||
lda XtankstableL,x
|
||||
sta xdraw
|
||||
lda XtankstableH,x
|
||||
sta xdraw+1
|
||||
lda Ytankstable,x
|
||||
clc
|
||||
adc #1 ; in this point the comment helped us! For the very first
|
||||
; time in our lives! Tada! It opens a new chapter!!!
|
||||
sta ydraw
|
||||
;
|
||||
; UnderTank1 ; byte under tank
|
||||
; UnderTank2 ; byte under tank reversed (for simple check right direction)
|
||||
lda #08
|
||||
sta temp ; Loop Counter
|
||||
ByteBelowTank
|
||||
jsr point
|
||||
beq EmptyPoint2
|
||||
sec
|
||||
ror UnderTank2
|
||||
sec
|
||||
bcs ROLPoint2
|
||||
EmptyPoint2
|
||||
clc
|
||||
ror UnderTank2
|
||||
clc
|
||||
ROLPoint2
|
||||
rol UnderTank1
|
||||
inw xdraw
|
||||
dec temp
|
||||
bne ByteBelowTank
|
||||
NoGroundCheck
|
||||
ldx TankNr
|
||||
lda UnderTank1
|
||||
bne NoFallingDown
|
||||
; Tank falling down ----
|
||||
lda Parachute
|
||||
and #1
|
||||
bne ParachutePresent
|
||||
; decreasing energy
|
||||
ldy #2 ; how much energy to substract
|
||||
jsr DecreaseEnergyX
|
||||
ParachutePresent
|
||||
; check parachute type
|
||||
lda ActiveDefenceWeapon,x
|
||||
cmp #ind_StrongParachute ; strong parachute
|
||||
bne OneTimeParachute
|
||||
; decreasing energy of parachute
|
||||
ldy #2 ; how much energy to substract
|
||||
jsr DecreaseShieldEnergyX
|
||||
cpy #0 ; is necessary to reduce tenk energy ?
|
||||
beq @+
|
||||
jsr DecreaseEnergyX
|
||||
@
|
||||
; check energy of parachute
|
||||
lda ShieldEnergy,x
|
||||
bne OneTimeParachute
|
||||
mva #0 Parachute
|
||||
mva #0 ActiveDefenceWeapon,x ; deactivate defence
|
||||
OneTimeParachute
|
||||
lda Parachute
|
||||
ora #2 ; we set bit nr 1 (nr 0 means that parachute is present)
|
||||
sta Parachute
|
||||
; tank is falling down - modify coorinates
|
||||
lda Ytankstable,x
|
||||
clc
|
||||
adc #1
|
||||
sta Ytankstable,x
|
||||
jmp EndOfFCycle
|
||||
NoFallingDown
|
||||
; check direction (left or right)
|
||||
ldy #7 ; SlideLeftTable length -1 (from 0 to 7)
|
||||
@ lda SlideLeftTable,y
|
||||
cmp UnderTank1
|
||||
beq FallingRight
|
||||
cmp UnderTank2
|
||||
beq FallingLeft
|
||||
dey
|
||||
bpl @-
|
||||
bmi NoLeftOrRight
|
||||
FallingLeft
|
||||
; tank is falling left
|
||||
bit PreviousFall ; bit 6 - right
|
||||
bvs EndLeftFall
|
||||
; we finish falling left if the tank reached the edge of the screen
|
||||
lda XtanksTableL,x
|
||||
bne NotLeftEdge
|
||||
lda XtanksTableH,x
|
||||
beq EndLeftFall
|
||||
NotLeftEdge
|
||||
; tank is falling left - modify coorinates
|
||||
clc
|
||||
lda XtankstableL,x
|
||||
adc #1
|
||||
sta XtankstableL,x
|
||||
lda XtankstableH,x
|
||||
adc #0
|
||||
sta XtankstableH,x
|
||||
mva #%10000000 PreviousFall ; set bit 7 - left
|
||||
bne EndOfFCycle
|
||||
FallingRight
|
||||
; tank is falling right
|
||||
bit PreviousFall ; bit 7 - left
|
||||
bmi EndRightFall
|
||||
; we finish falling right if the tank reached the edge of the screen
|
||||
clc
|
||||
lda XtanksTableL,x
|
||||
adc #$08 ; we'll check right side of the char
|
||||
sta temp
|
||||
lda XtanksTableH,x
|
||||
adc #0
|
||||
sta temp+1
|
||||
cpw temp #screenwidth
|
||||
beq EndRightFall
|
||||
; tank is falling right - modify coorinates
|
||||
sec
|
||||
lda XtankstableL,x
|
||||
sbc #1
|
||||
sta XtankstableL,x
|
||||
lda XtankstableH,x
|
||||
sbc #0
|
||||
sta XtankstableH,x
|
||||
mva #%01000000 PreviousFall ; set bit 6 - right
|
||||
bne EndOfFCycle
|
||||
EndLeftFall
|
||||
EndRightFall
|
||||
NoLeftOrRight
|
||||
inc EndOfTheFallFlag ; after this is shouldn't fall
|
||||
EndOfFCycle
|
||||
; draw tank on new position
|
||||
jsr DrawTankNr ; ew have TankNr in X (I hope :) )
|
||||
; checking is parachute present and if so, draw it
|
||||
lda Parachute
|
||||
cmp #3 ; parachute and falling
|
||||
bne DoNotDrawParachute
|
||||
; here we draw parachute
|
||||
ldx TankNr
|
||||
jsr DrawTankParachute
|
||||
wait ; onli if tank with patachute
|
||||
RapidFalling
|
||||
DoNotDrawParachute
|
||||
lda EndOfTheFallFlag
|
||||
jeq TankFallsX
|
||||
; Tank falling down already finished, but it is not sure that
|
||||
; the horizontal coordinate is even.
|
||||
; If it is odd then it must be corrected because otherwise
|
||||
; P/M graphics background would not look OK
|
||||
ldx TankNr
|
||||
lda XtanksTableL,x
|
||||
and #$01
|
||||
beq EndOfFall ; if it is even then it is the end
|
||||
; and if not, we push it one pixel the way it was falling before
|
||||
lda #%10000000 ; set "virtual ground" for right falling
|
||||
ldy #%00000001
|
||||
bit PreviousFall
|
||||
bmi ForceFallLeft
|
||||
tay ; tricky - replaces ldy #%10000000
|
||||
lda #%00000001 ; set "virtual ground" for left falling
|
||||
ForceFallLeft
|
||||
sta UnderTank1
|
||||
sty UnderTank2
|
||||
jne TankFallsX
|
||||
EndOfFall
|
||||
mva #1 Erase
|
||||
ldx TankNr
|
||||
; if tank was falling down having parachute,
|
||||
; we must deduct one parachute
|
||||
lda Parachute
|
||||
cmp #$03 ; was falling down and the parachute
|
||||
bne NoParachuteWeapon
|
||||
; first we check type of parachute
|
||||
lda ActiveDefenceWeapon,x
|
||||
cmp #ind_Parachute______ ; deactivate weapon only if parachute (54)
|
||||
bne NoParachuteWeapon
|
||||
mva #0 ActiveDefenceWeapon,x ; deactivate defence weapon (parachute)
|
||||
NoParachuteWeapon
|
||||
; now we clear parachute on the screen if present
|
||||
lda Parachute
|
||||
and #01
|
||||
beq ThereWasNoParachute
|
||||
jsr DrawTankParachute
|
||||
ThereWasNoParachute
|
||||
mva #0 Erase
|
||||
ldx TankNr
|
||||
jsr DrawTankNr ; redraw tank after erase parachute (exactly for redraw leaky schield :) )
|
||||
mva #sfx_silencer sfx_effect
|
||||
rts
|
||||
|
||||
.endp
|
||||
|
||||
;--------------------------------------------------
|
||||
.proc DrawTankParachute
|
||||
;Tank number in X
|
||||
;--------------------------------------------------
|
||||
lda #$34 ; parachute symbol
|
||||
sta CharCode
|
||||
lda Ytankstable,x
|
||||
sec
|
||||
sbc #8
|
||||
sta ydraw
|
||||
lda XtanksTableL,x
|
||||
sta xdraw
|
||||
lda XtanksTableH,x
|
||||
sta xdraw+1
|
||||
jsr TypeChar
|
||||
rts
|
||||
.endp
|
||||
;--------------------------------------------------
|
||||
.proc Flight ; Force(byte.byte), Wind(0.word)
|
||||
; Angle(byte) 128=0, 255=maxright, 0=maxleft
|
||||
@@ -1802,7 +1553,7 @@ ThereWasNoParachute
|
||||
ldy #0
|
||||
ldx TankNr
|
||||
lda ActiveWeapon,x
|
||||
cmp #11 ; Smoke tracer
|
||||
cmp #ind_Smoke_Tracer___ ; Smoke tracer
|
||||
bne noSmokeTracer
|
||||
iny
|
||||
noSmokeTracer
|
||||
@@ -1961,6 +1712,8 @@ Loopi
|
||||
sbc vy+3
|
||||
sta ytraj+2
|
||||
|
||||
bit LaserFlag ; no gravity if Laser
|
||||
bmi NoGravity
|
||||
;vy=vy-g (again without least significant byte of vy)
|
||||
sec
|
||||
lda vy+1
|
||||
@@ -1979,9 +1732,9 @@ Loopi
|
||||
lda ActiveWeapon,x
|
||||
cmp #ind_MIRV___________ ; MIRV
|
||||
jeq MIRVdownLoop
|
||||
NoGravity
|
||||
StillUp
|
||||
|
||||
|
||||
clc ;xtraj=xtraj+vx (skipping least significant byte of vx)
|
||||
lda xtraj ;here of course Fight to right
|
||||
adc vx+1
|
||||
@@ -1993,12 +1746,15 @@ StillUp
|
||||
adc vx+3
|
||||
sta xtraj+2
|
||||
|
||||
bit LaserFlag ; no wind if Laser
|
||||
bmi NoWind
|
||||
clc
|
||||
.rept 4
|
||||
lda vx+#
|
||||
adc Wind+#
|
||||
sta vx+#
|
||||
.endr
|
||||
NoWind
|
||||
mwa xtrajold+1 xdraw
|
||||
mwa ytrajold+1 ydraw
|
||||
mwa xtraj+1 xbyte
|
||||
@@ -2019,10 +1775,8 @@ nowait
|
||||
lda HitFlag
|
||||
bne Hit
|
||||
; --- only for Laser
|
||||
ldx TankNr
|
||||
lda ActiveWeapon,x
|
||||
cmp #ind_Laser__________ ; Laser
|
||||
bne NoCheckEdgesForLaser
|
||||
bit LaserFlag
|
||||
bpl NoCheckEdgesForLaser
|
||||
; If laser fires, edges of the screen finish "flying" and laser hits.
|
||||
lda ytraj+2
|
||||
bmi LaserHitEdge
|
||||
|
||||
Reference in New Issue
Block a user