draw jmp(indirect) ellimination

ai.asm

@@ -123,11 +123,11 @@ tankIsOnTheRight
 forceNow
     mwa #100 RandBoundaryLow
     mwa #800 RandBoundaryHigh 
-    ldx TankNr
+    ldx TankNr ;this is possibly not necessary
     jsr RandomizeForce
 
 endo
-	;ldx TankNr ;this is possibly not necessary
+	ldx TankNr ;this is possibly not necessary
 	lda NewAngle
 	sta PreviousAngle,x
 	lda EnergyTableL,x

grafproc.asm

@@ -214,37 +214,20 @@ LineGoesLeft
     ; line goes left - we are reversing X
     sbw xtempDRAW temp xdraw ; XI
 PutPixelinDraw
-    jsr DrawJumpPad
-; end of the special PLOT for DRAW
     
-    ; XI=XI+1
+    ; 0 - plot, %10000000 - LineLength (N), %01000000 - DrawCheck (V)
-    ; UNTIL XI=XK
+    bit drawFunction
-    inw XI
+    bpl @+
-    cpw XI XK
-    jne DrawLoop
-
-EndOfDraw
-    mwa xtempDRAW xdraw
-    mva ytempDRAW ydraw
-    rts
-.endp
-
-;-------------JumpPad-------------
-DrawJumpPad
-    jmp (DrawJumpAddr)
-Drawplot
-    jmp plot
-DrawLen
     inw LineLength
-    rts
+    bne ContinueDraw  ; ==jmp
-;-------------JumpPad-------------
+@
-    
+    bvc @+
-DrawCheck .proc
+DrawCheck
-	lda tracerflag
+    lda tracerflag
-	ora SmokeTracerFlag
+    ora SmokeTracerFlag
 yestrace
-	beq notrace
+    beq notrace
-	jsr plot
+    jsr plot
 notrace
 ;aftertrace
     lda HitFlag
@@ -267,12 +250,24 @@ CheckCollisionDraw
     cmp (temp),y
     bcc StopHitChecking
 
-    mva #1 HitFlag
     mwa xdraw XHit
     mwa ydraw YHit
-
+    mva #1 HitFlag
-
 StopHitChecking
+    jmp ContinueDraw
+@
+    jsr plot   
+
+ContinueDraw
+    ; XI=XI+1
+    ; UNTIL XI=XK
+    inw XI
+    cpw XI XK
+    jne DrawLoop
+
+EndOfDraw
+    mwa xtempDRAW xdraw
+    mva ytempDRAW ydraw
     rts
 .endp
 

variables.asm

@@ -33,6 +33,8 @@ RoundNrDisplay
     .byte $ff
 
 variablesStart  ; zeroing starts here
+drawFunction .ds 1  ; 0 - plot, %10000000 - LineLength (N), %01000000 - DrawCheck (V)
+;-------------- 
 escFlag .ds 1
 ;-------------- 
 sfx_effect .ds 1
@@ -159,7 +161,6 @@ sandhogflag .DS 1 ; (0 digger, 8 sandhog)
 ;ofdirt
 magic  .DS 2 ; was tempor2, but it was not compiling!!! (bug in OMC65)
 ;draw
-DrawJumpAddr .DS 2
 HowToDraw .DS 1
     ; bits here mean
     ; 0 - negative X (go up)

weapons.asm

@@ -544,7 +544,7 @@ DiggerCharacter
     sbc EndOfTheBarrelY,y
     sta ybyte
     mva #0 ybyte+1
-    mwa #Drawplot DrawJumpAddr
+    mva #0 drawFunction
     mwa xdraw LaserCoordinate
     mwa ydraw LaserCoordinate+2
     mwa xbyte LaserCoordinate+4
@@ -615,7 +615,7 @@ ExplosionLoop2
         
 ;check tanks' distance from the centre of the explosion
 
-    mwa #DrawLen DrawJumpAddr
+    mva #%10000000 drawFunction
     ;the above switches Draw to measuring length
     ;trick is easy - how many pixels does it take to draw
     ;a line from one point to another
@@ -1535,7 +1535,7 @@ noSmokeTracer
 RepeatIfSmokeTracer		
     mwa ytraj+1 Ytrajold+1
     mwa xtraj+1 Xtrajold+1
-    mwa #DrawCheck DrawJumpAddr
+    mwa #%01000000 drawFunction
 
     lda #0  
     sta Result