ExplosionRange variable is now really one byte long. :)

scorch.asm

@@ -26,7 +26,7 @@
 ;---------------------------------------------------
     icl 'definitions.asm'
 ;---------------------------------------------------
-FirstZpageVariable = $60
+FirstZpageVariable = $61
     .zpvar DliColorBack		.byte = FirstZpageVariable
 	.zpvar JoystickNumber	.byte
     .zpvar xdraw            .word ;= $64 ;variable X for plot
@@ -87,7 +87,7 @@ FirstZpageVariable = $60
     .zpvar decimal .word
     .zpvar NumberOfPlayers .byte ;current number of players (counted from 1)
     .zpvar Counter .byte ;temporary Counter for outside loops
-    .zpvar ExplosionRadius .word ;because when adding in xdraw it is double byte
+    .zpvar ExplosionRadius .byte
     .zpvar ResultY .byte
     .zpvar xcircle .word
     .zpvar ycircle .word

weapons.asm

@@ -3008,14 +3008,34 @@ CalculateExplosionRange0
 ;calculates total horizontal range of explosion by
 ;"summing up" ranges of all separate explosions
 
-    adw xdraw ExplosionRadius WeaponRangeRight
+	; WeaponRangeRight = xdraw + ExplosionRadius
-    cpw WeaponRangeRight #screenwidth-1
+	clc
-    bcc NotOutOfTheScreenRight
+	lda xdraw
+	adc ExplosionRadius
+	sta WeaponRangeRight
+	lda xdraw+1
+	adc #$00
+	sta WeaponRangeRight+1
+    ; adw xdraw ExplosionRadius WeaponRangeRight  ; Pozor! ExplosionRadius is one byte now
+    ; cpw WeaponRangeRight #screenwidth-1
+	cmp #>(screenwidth-1)
+	bne @+
+	lda WeaponRangeRight
+	cmp #<(screenwidth-1)
+@	bcc NotOutOfTheScreenRight
     mwa #screenwidth-1 WeaponRangeRight
 
 NotOutOfTheScreenRight
-    sbw xdraw ExplosionRadius WeaponRangeLeft
+	; WeaponRangeLeft = xdraw - ExplosionRadius
-    lda WeaponRangeLeft+1
+	sec
+	lda xdraw
+	sbc ExplosionRadius
+	sta WeaponRangeLeft
+	lda xdraw+1
+	sbc #$00
+	sta WeaponRangeLeft+1
+    ; sbw xdraw ExplosionRadius WeaponRangeLeft  ; Pozor! ExplosionRadius is one byte now
+    ; lda WeaponRangeLeft+1
     bpl NotOutOfTheScreenLeft
     lda #0
     sta WeaponRangeLeft