Cocos2d for iPhone 1 Game Development Cookbook

Using Lua for dialogue trees

Lua lets the programmer write against a generic interface and worry about the implementation later. This separation between game logic, and the nuts and bolts of presenting the audio/visual elements of the game, is an important part of any game engine. In this recipe, we will use Lua to create a small story-based adventure game.

Getting ready

Please refer to the project RecipeCollection03 for full working code of this recipe.

How to do it...

Execute the following code:

//Static C functions static int ldtLogic(lua_State * l) { int num = [ldtRecipe logic:[NSString stringWithUTF8String:lua_tostring(l,1)]]; lua_pushnumber(l,num); ...