cannot use block tool in qual mod

Author: kirjavascript

CHANGELOG.md

@@ -2,6 +2,7 @@
 ## [v4 classic]
 - Standard Pause in Qual Mode
 - No Next Box allowed in Qual Mode
+- Block Tool cannot be used in Qual Mode
 
 ## [v4]
 - B-Type Trainer (height 0-8)

README.md

@@ -269,6 +269,8 @@ Also reintroduces other classic features like the end game curtain, standard pau
 
 These features make TetrisGYM work better with post processing tools like [NestrisChamps](https://github.com/timotheeg/nestrischamps) and [MaxoutClub](https://maxoutclub.com/).
 
+You cannot use the Block Tool and Qual mode at the same time.
+
 ## PAL Mode
 
 Dictate if the NTSC or PAL gameplay mechanics should be used. Should automatically detect region, but can be manually overwritten otherwise.

main.asm

@@ -1046,7 +1046,7 @@ menuConfigControls:
         dec menuVars, x
         lda #$01
         sta soundEffectSlot1Init
-        jsr checkGoofy
+        jsr assertValues
 @skipLeftConfig:
 
         ; check if pressing right
@@ -1060,15 +1060,33 @@ menuConfigControls:
         inc menuVars, x
         lda #$01
         sta soundEffectSlot1Init
-        jsr checkGoofy
+        jsr assertValues
 @skipRightConfig:
 @configEnd:
         rts
 
 menuConfigSizeLookup:
         .byte   MENUSIZES
 
-checkGoofy:
+assertValues:
+        ; make sure you can only have block or qual
+        lda practiseType
+        cmp #MODE_QUAL
+        bne @noQual
+        lda menuVars, x
+        beq @noQual
+        lda #0
+        sta debugFlag
+@noQual:
+        lda practiseType
+        cmp #MODE_DEBUG
+        bne @noDebug
+        lda menuVars, x
+        beq @noDebug
+        lda #0
+        sta qualFlag
+@noDebug:
+        ; goofy
         lda practiseType
         cmp #MODE_GOOFY
         bne @noFlip