🧹 Refactor Pygame Code (hedyorg#5117)

PR for removing the use of Pygame within Hedy.
We still want to keep the functionality of "if button pressed".

app.py

@@ -581,8 +581,8 @@ def parse():
 
             response['source_map'] = source_map_result
 
-            if transpile_result.has_pygame:
-                response['has_pygame'] = True
+            if transpile_result.has_pressed:
+                response['has_pressed'] = True
 
             if transpile_result.has_turtle:
                 response['has_turtle'] = True

build-tools/heroku/generate-prefixes-ts

@@ -10,7 +10,7 @@ cat <<EOF > $python_prefix_ts
 *
 * !!! THIS FILE HAS BEEN GENERATED. DO NOT EDIT !!!
 *
-* Make desired changes to prefixes/{normal,pygame,turtle,music}.py
+* Make desired changes to prefixes/{normal,pressed,turtle,music}.py
 *
 * Add/edit tests for those changes in tests/test_python_prefixes.py
 *
@@ -19,7 +19,7 @@ cat <<EOF > $python_prefix_ts
 *******************************************************************************/
 EOF
 
-for prefix in turtle pygame normal music; do
+for prefix in turtle pressed normal music; do
   echo >> $python_prefix_ts
   echo "export const ${prefix}_prefix = " >> $python_prefix_ts
   echo -n '`' >> $python_prefix_ts

grammars/level15-Additions.lark

@@ -1,4 +1,4 @@
-command: += while_loop | ifpressed -= error_ifpressed_missing_else >> error_ifelse | ifs
+command: += while_loop | if_pressed -= error_if_pressed_missing_else >> error_ifelse | ifs
 
 // new : while loop
 while_loop: _WHILE (_conditions) _EOL (_SPACE command) (_EOL _SPACE command)* _EOL? _END_BLOCK

grammars/level17-Additions.lark

@@ -1,12 +1,13 @@
 // We add the : at the end of if and else and elif and for/while
 
-command: += ifpressed (ifpressed_elifs)* ifpressed_elses? | ifs (elifs)* elses? -= ifs elses?
+command: += if_pressed (if_pressed_elifs)* if_pressed_elses? | ifs (elifs)* elses? -= ifs elses?
 
 // These will be handled by the preprocessor step in the merger
 // It will find the appropiate function for this anotation and modify it accordingly
-ifpressed_else<needs_colon>
-ifpressed<needs_colon>
-ifpressed_elifs: _EOL _ELIF (LETTER_OR_NUMERAL | NAME) _IS _PRESSED _COLON _EOL (_SPACE command) (_EOL _SPACE command)* _EOL? _END_BLOCK
+if_pressed<needs_colon>
+if_pressed_else<needs_colon>
+if_pressed_elses<needs_colon>
+if_pressed_elifs: _EOL _ELIF (LETTER_OR_NUMERAL | NAME) _IS _PRESSED _COLON _EOL (_SPACE command) (_EOL _SPACE command)* _EOL? _END_BLOCK
 
 ifs<needs_colon>
 elses<needs_colon>

grammars/level5-Additions.lark

@@ -4,7 +4,7 @@ _empty_program: (_EOL | _SPACE)*
 _non_empty_program: _EOL* (command | error_invalid) _SPACE* (_EOL+ command _SPACE*)* _EOL* //lines may end on spaces and might be separated by many newlines
 
 //placing assign after print means print is will print 'is' and print is Felienne will print 'is Felienne'
-command: += assign_button | ifpressed_else | error_ifpressed_missing_else | ifelse | ifs -= error_invalid >> assign
+command: += assign_button | if_pressed_else | error_if_pressed_missing_else | if_pressed_without_else | ifelse | ifs -= error_invalid >> assign
 _if_less_command: print | ask | play | turtle | assign_button | assign_list | add | remove | sleep | error_print_no_quotes | assign
 
 // error_invalid is moved from to command to program, so that command rules have priority over error_invalid
@@ -21,8 +21,9 @@ assign: var _IS (list_access | textwithspaces)
 error_print_no_quotes: _PRINT (textwithoutspaces | list_access | var_access) (_SPACE (textwithoutspaces | list_access | var_access))*  -> error_print_nq
 
 // new commands for level 5
-ifpressed_else: _IF (LETTER_OR_NUMERAL | var) _IS _PRESSED _EOL* _if_less_command (_SPACE+ _EOL* | _SPACE* _EOL+) _ELSE (_SPACE+ _EOL* | _SPACE* _EOL+) _if_less_command
-error_ifpressed_missing_else: _IF (LETTER_OR_NUMERAL | var) _IS _PRESSED _EOL* _if_less_command
+if_pressed_else: _IF (LETTER_OR_NUMERAL | var) _IS _PRESSED _EOL* _if_less_command (_SPACE+ _EOL* | _SPACE* _EOL+) _ELSE (_SPACE+ _EOL* | _SPACE* _EOL+) _if_less_command
+if_pressed_without_else: _IF (LETTER_OR_NUMERAL | var) _IS _PRESSED _EOL* _if_less_command
+error_if_pressed_missing_else: if_pressed_without_else
 
 _if_clause: _IF (condition (_SPACE+ _EOL* | _SPACE* _EOL+) | condition_spaces _SPACE* _EOL+ | error_condition) _if_less_command
 error_condition: condition_spaces _SPACE

grammars/level6-Additions.lark

@@ -2,7 +2,7 @@ _print_argument: (_SPACE | quoted_text | list_access | expression | print_expres
 ?print_expression: var_access_print | error_unsupported_number | INT
 
 // redefining it entirely since it has many order-depending rules
-command: clear | error_non_decimal | print | turtle | play | add | remove | error_add_missing_to | error_remove_missing_from | sleep | error_print_no_quotes | error_print_one_quote_only | ifpressed_else | error_ifpressed_missing_else | ifelse | ifs | ask | error_ask_no_quotes| assign_button | assign | assign_list | error_invalid_space | error_text_no_print | empty_line
+command: clear | error_non_decimal | print | turtle | play | add | remove | error_add_missing_to | error_remove_missing_from | sleep | error_print_no_quotes | error_print_one_quote_only | if_pressed_else | error_if_pressed_missing_else | if_pressed_without_else | ifelse | ifs | ask | error_ask_no_quotes| assign_button | assign | assign_list | error_invalid_space | error_text_no_print | empty_line
 _if_less_command: print | turtle | play | add | remove | sleep | error_print_no_quotes | error_print_one_quote_only | ask | error_ask_no_quotes | assign_button | assign | assign_list
 
 //splitting  these commands into two rules, one for equals and one for is so they can be properly handled in the translator

grammars/level8-Additions.lark

@@ -1,4 +1,4 @@
-command: += error_repeat_dep_8 | error_ifelse | error_ifpressed_missing_else | ifpressed ifpressed_elses? | ifs elses? -= error_invalid_space | ifelse
+command: += error_repeat_dep_8 | error_ifelse | if_pressed_without_else | if_pressed if_pressed_elses? | ifs elses? -= error_invalid_space | ifelse
 
 repeat.1: _REPEAT (INT | var_access) _TIMES _SPACE? _EOL (_SPACE command) (_EOL _SPACE command)* _EOL? _END_BLOCK
 error_repeat_dep_8: _REPEAT (INT | var_access) _TIMES _SPACE command
@@ -7,14 +7,14 @@ error_repeat_dep_8: _REPEAT (INT | var_access) _TIMES _SPACE command
 // not sure of we want it, but we could
 equality_check: (textwithoutspaces | NUMBER) (_IS | _EQUALS) (textwithoutspaces | NUMBER) (_SPACE | textwithoutspaces | NUMBER)*
 
-// from level 8 on ifpressed is implemented slightly differently
-ifpressed: _IF (LETTER_OR_NUMERAL | NAME) _IS _PRESSED _EOL (_SPACE command) (_EOL _SPACE command)* _EOL? _END_BLOCK
-ifpressed_else: _IF (LETTER_OR_NUMERAL | NAME) _IS _PRESSED _EOL (_SPACE command) (_EOL _SPACE command)* _EOL? _END_BLOCK (_SPACE)* _ELSE (_SPACE)* _EOL (_SPACE command) (_EOL _SPACE command)* _EOL? _END_BLOCK
-error_ifpressed_missing_else: ifpressed
+// from level 8 on if_pressed is implemented slightly differently
+if_pressed: _IF (LETTER_OR_NUMERAL | NAME) _IS _PRESSED _EOL (_SPACE command) (_EOL _SPACE command)* _EOL? _END_BLOCK
+if_pressed_else: _IF (LETTER_OR_NUMERAL | NAME) _IS _PRESSED _EOL (_SPACE command) (_EOL _SPACE command)* _EOL? _END_BLOCK (_SPACE)* _ELSE (_SPACE)* _EOL (_SPACE command) (_EOL _SPACE command)* _EOL? _END_BLOCK
+if_pressed_without_else: if_pressed
 
 // from level 8 on if is implemented slightly differently
 elses: _EOL (_SPACE)* _ELSE (_SPACE)* _EOL (_SPACE command) (_EOL _SPACE command)* _EOL? _END_BLOCK
-ifpressed_elses: elses
+if_pressed_elses: _EOL (_SPACE)* _ELSE (_SPACE)* _EOL (_SPACE command) (_EOL _SPACE command)* _EOL? _END_BLOCK
 //'if' cannot be used in Python, hence the name of the rule is 'ifs'
 ifs: _IF condition _EOL (_SPACE command) (_EOL _SPACE command)* _EOL? _END_BLOCK