Meteors as compilation option

Atari/gr_basics.asm

@@ -161,12 +161,14 @@ ClearPlot
     rts
 .endp
 
+.IF METEORS = 1
 ; -----------------------------------------
 .proc ExPlot  ;ExPlot (EplotX, EplotY)
 ; EOR plot:
 ; Inverts color of a pixel
 ; Note: No coordinate control!!!
 ;       With off-screen coordinates, it can damage main program.
+; only for ingame meteors
 ; -----------------------------------------
     ; let's calculate coordinates from xdraw and ydraw
     ;xbyte = xbyte/8
@@ -190,7 +192,7 @@ ClearPlot
     sta (EplotByte),y
     rts
 .endp
-
+.ENDIF
 ; -----------------------------------------
 .proc point_plot
 ; -----------------------------------------

Atari/interrupts.asm

@@ -143,7 +143,7 @@ lab2
     ; ------- RMT -------
 SkipRMTVBL
     ; ------ meteors ------ start
-  .IF TARGET = 5200 .OR CART_VERSION = 1
+  .IF METEORS = 1
     ldx #0
     bit Mcounter
     bpl MeteorOnSky
@@ -287,7 +287,7 @@ exit
         rti
     .ENDIF
     ; ------ meteors plot/flight subroutine ------ start
-  .IF TARGET = 5200 .OR CART_VERSION = 1
+  .IF METEORS = 1
 GoMplot
     lda Mpoint1Y,x
     cmp #64