Cashlaz

Duck Survival [+3 Cheats] ad 

Context

Duck Survival = Unity IL2CPP + ToLua. Ad logic lives in Lua (VipCtrl, AdManager, EventSystem).

The native tweak (DuckSpend) hooks lua_pcall / DecodeData and injects inject.lua into the live Lua state. Once lobby modules exist, we monkey-patch their globals.

How the game normally grants the reward

Typical flow:

1. UI calls AdManager.ShowAd(reasonId, adOrPayId).
2. If ad-free is set (VipCtrl.GetAddedAdFreeFlag()), the game skips the video and fires EventDefine.OnFinishAd.
3. Listeners on OnFinishAd (shop, daily reward, etc.) grant the reward using reasonId / adOrPayId.

So the reward is keyed off the internal Lua event OnFinishAd, not directly off the native SDK callback.

What we do (two layers)

Source: tweak/DuckSpend/inject.lua, gated by on('ads') → _G.__DuckT.ads.

1. Fake VIP / ad-free

Any code that checks “is ad-free?” before showing an ad gets true and often never reaches the SDK.

2. Short-circuit ShowAd (main reward path)

• skip original ShowAd → no native video;
• immediately Trigger(OnFinishAd, { r = reasonId, i = adOrPayId }) → same listeners as a real completion;
• optional SendAdsEvent(3, 1) — analytics “success” (best-effort, not required for the grant).

{ r, i } matches the payload the game’s OnFinishAd handlers expect (same as the vanilla ad-free path).

Why the reward still arrives

We emulate a successful completion at the game’s Lua layer, not a fake response from the ad network. Client Lua treats the watch as done and runs its normal reward flow.

Details

Bottom line: skip = don’t call the SDK + fire OnFinishAd with the same ids, plus the VIP flag as an extra short-circuit for code that checks ad-free before ShowAd.