Convert existing cds using the new system

(cherry picked from commit 4770be5f1b)

game/scripts/cds.rpy

@@ -54,29 +54,31 @@ python early hide:
             evaled = {n: eval(e) for n, e in self.items()}
             renpy.dynamic(**evaled)
 
-python early:
-    def parse_chibi(l):
+    @register_decorator
+    class chibi:
+        @staticmethod
+        def parse(l):
             who = l.simple_expression()
             action = l.simple_expression()
 
             return (who, action)
 
-    def execute_chibi(p):
-        print(f"{p}")
-        who, action = p
+        def execute(self):
+            print(f"{self}")
+            who, action = self
             func = eval(f"{who}_chibi.{action}")
 
             # print(f"Execution: {who} {action}")
 
-    def lint_chibi(p):
-        who, action = p
+        def lint(self):
+            who, action = self
             try:
                 chibi = eval(f"{who}_chibi")
             except Exception:
                 renpy.error(f"Character chibi not defined: {who}")
 
-    def predict_chibi(p):
-        who, action = p
+        def predict(self):
+            who, action = self
 
             chibi = eval(f"{who}_chibi")
             doll = eval(f"{who}")
@@ -89,15 +91,13 @@ python early:
 
             return layers
 
-    renpy.register_statement(
-        name="chibi",
-        parse=parse_chibi,
-        execute=execute_chibi,
-        lint=lint_chibi,
-        predict=predict_chibi,
-    )
+    @register_decorator
+    class random:
+        block = True
+        predict_all = True
 
-    def parse_random(l):
+        @staticmethod
+        def parse(l):
             l.require(":")
             l.expect_eol()
 
@@ -127,8 +127,8 @@ python early:
 
             return {"blocks": blocks}
 
-    def next_random(p):
-        blocks = [(block, weight) for block, weight, condition in p["blocks"] if eval(condition)]
+        def next(self):
+            blocks = [(block, weight) for block, weight, condition in self["blocks"] if eval(condition)]
             total_weight = sum(weight for _, weight in blocks)
             n = renpy.random.random() * total_weight
 
@@ -139,11 +139,3 @@ python early:
                     n -= weight
 
             return block
-
-    renpy.register_statement(
-        name="random",
-        block=True,
-        predict_all=True,
-        parse=parse_random,
-        next=next_random,
-    )