And... it works?

1 files changed, 19 insertions, 16 deletions

@@ -109,23 +109,26 @@ int find(const std::vector<T> &data, T search, size_t startIndex = 0) {
         throw std::exception("Couldn't find value in data!");
 }
 
-bool Randomizer::GameIsRandomized() {
-        int currentFrame = _memory->GetCurrentFrame();
-        if (currentFrame >= _lastRandomizedFrame) {
-                // Time went forwards, presumably we're still on the same save
-                _lastRandomizedFrame = currentFrame;
-                return true;
-        }
-        // Otherwise, time has gone backwards, so assume new game
-        return false;
-}
-
-void Randomizer::Randomize()
-{
-        if (GameIsRandomized()) return;  // Nice sanity check, but should be unnecessary (since Main checks anyways)
-        _lastRandomizedFrame = _memory->GetCurrentFrame();
+Randomizer::Randomizer(const std::shared_ptr<Memory>& memory) : _memory(memory) {}
+
+void Randomizer::Randomize() {
+        // reveal_exit_hall - Prevent actually ending the game (EEE)
+        _memory->AddSigScan({0x45, 0x8B, 0xF7, 0x48, 0x8B, 0x4D}, [&](int index){
+                _memory->WriteData<byte>({index + 0x15}, {0xEB}); // jz -> jmp
+        });
+
+        // begin_endgame_1 - Prevent actually ending the game (Wonkavator)
+        _memory->AddSigScan({0x83, 0x7C, 0x01, 0xD0, 0x04}, [&](int index){
+                if (GLOBALS == 0x5B28C0) { // Version differences.
+                        index += 0x75;
+                } else if (GLOBALS == 0x62D0A0) {
+                        index += 0x86;
+                }
+                _memory->WriteData<byte>({index}, {0xEB}); // jz -> jmp
+        });
+    // Sig scans will be run during challenge randomization.
 
-        // Seed challenge first for future-proofing (?)
+        // Seed challenge first for future-proofing
         RandomizeChallenge();
 
         // Content swaps -- must happen before squarePanels