feat(examples): add Creator-Defined Statements (CDS)

game/examples/_creator_defined_statements.rpy

@@ -0,0 +1,30 @@
+# https://www.renpy.org/doc/html/cds.html
+python early:
+    def parse_random(lexer):
+        subblock_lexer = lexer.subblock_lexer()
+        choices = []
+
+        while subblock_lexer.advance():
+            with subblock_lexer.catch_error():
+                statement = subblock_lexer.renpy_statement()
+                choices.append(statement)
+
+        return choices
+
+
+    def next_random(choices):
+        return renpy.random.choice(choices)
+
+
+    def lint_random(parsed_object):
+        for i in parsed_object:
+            renpy.error(renpy.check_text_tags(i.what))
+
+
+    renpy.register_statement(
+        name="random",
+        block=True,
+        parse=parse_random,
+        next=next_random,
+        lint=lint_random,
+    )

game/examples/creator_defined_statements.rpy

@@ -0,0 +1,9 @@
+label creator_defined_statements:
+
+    # see `game/examples/_creator_defined_statements.rpy`
+    random:
+        "Hello."
+        "Welcome."
+        "Can I help you?"
+
+    jump start

game/examples/start.rpy

@@ -11,6 +11,9 @@ label start:
     menu:
         "Which example do you want to see?"
 
+        "Creator-Defined Statements (CDS)":
+            jump creator_defined_statements
+
         "Dialogue":
             jump dialogue