Getting started - Introduction - Installing Defold - The editor - Glossary - Defold for Flash users - Getting help Project setup - Creating a project - Project settings - Libraries Core concepts - Building blocks - Addressing - Message passing - Application lifecycle Assets and resources - Importing assets - Importing 2D graphics - Importing 3D models - Adapting to different screen sizes - Live update - Animation - Atlas - Font - Resource management - Tile source - Texture filtering - Texture profiles Components - Overview - Collection factory - Collection proxy - Collision object - Camera - Factory - Label - Mesh - Model - Particle FX - Sound - Spine animation - Spine model - Sprite - Tilemap Gui - GUI overview - Box nodes - Text nodes - Pie nodes - Spine nodes - ParticleFX nodes - Template nodes - Scripts - Clipping - Layouts Physics - Collision objects - Collision shapes - Ray casts - Joints Game logic - Scripts - Properties - Script properties - Lua in Defold - Input - Modules - Debugging Saving and loading files - Working with files Networking - Overview - HTTP Requests - Socket connections - WebSocket connections - Online services Rendering - Render - Material - Shader - Texture filtering Workflow - Adapting to different screen sizes - Bundling an application - Bob the builder - Hot reloading - Optimizing an application - Profiling - Refactoring - The mobile dev app - Version control - Writing code - Working offline Debugging - Debugging game logic - Debugging native code - Debugging native code on Android - Debugging native code on iOS - Reading game and system logs - Profiling Platforms - Android - iOS - Nintendo Switch - Linux - HTML5 - macOS - Windows Monetization - Ads - In-app purchases - Web Monetization Extensions - Advertising Info - Facebook - Facebook Instant Games - Firebase Analytics - Google Play Game Services - Google Play Instant - In-app purchases - Inter-app communication - Push notifications - WebSocket - Webview Native extensions - Introduction - Details - Defold SDK - Adding auto-complete definition - Best Practices - Debugging - Build Variants - Manifest Merging Editor extensions - Editor scripts
The Defold SDK
The Defold SDK contains the required functionality to declare a native extension as well as interface with the low-level native platform layer on which the application runs and the high-level Lua layer in which the game logic is created.
Usage
You use the Defold SDK by including the dmsdk/sdk.h header file:
The header file is not publicly published but all of the available SDK functions are documented in our API reference . The SDK contains the following namespaces with functions:
Align - Alignment macros. Use for compiler compatibilityArray - Templatized array with bounds checking.Buffer - Buffer API for data buffers as the main way to communicate between systems. Lua API for buffer creation also exists.Condition Variable - API for platform independent mutex synchronization primitive.ConfigFile - Configuration file access functions. The configuration file is compiled version of the game.project file.Extension - Functions for creating and controlling engine native extension libraries.Graphics - Platform specific native graphics functions.Hash - Hash functions.Json - API for platform independent parsing of json files.Log - Logging functions.Mutex - API for platform independent mutex synchronization primitiveScript - Built-in scripting functions.Shared Library - Utility functions for shared library export/importSony vector Math Library - The Sony Vector Math library mainly provides functions used in 3-D graphics for 3-D and 4-D vector operations, matrix operations, and quaternion operations.