Step 1: Create Project Directory Шаг 1: Создание директории проекта

Create a workspace folder and a new directory for your Recast Navigation WebAssembly test project: Создайте рабочую папку для проектов и новую директорию для вашего тестового WebAssembly-проекта Recast Navigation:

mkdir C:\projects\recast-wasm-test
cd C:\projects\recast-wasm-test

Step 2: Create Source Files (main.cpp & CMakeLists.txt) Шаг 2: Создание исходных файлов (main.cpp и CMakeLists.txt)

You can create these files using Notepad, Sublime Text, or any text editor: Вы можете создать эти файлы через Блокнот, Sublime Text или любой текстовый редактор:

notepad main.cpp
notepad CMakeLists.txt

1. File Contents for main.cpp 1. Содержимое файла main.cpp

#include <iostream>
#include <Recast.h>
#include <DetourNavMesh.h>
#include <DetourNavMeshQuery.h>

int main() {
    std::cout << "Initializing Recast & Detour (WebAssembly)..." << std::endl;

    // Allocate Recast Context
    rcContext ctx;
    
    // Allocate Detour NavMesh & NavMeshQuery objects
    dtNavMesh* navMesh = dtAllocNavMesh();
    dtNavMeshQuery* navQuery = dtAllocNavMeshQuery();

    if (!navMesh || !navQuery) {
        std::cerr << "Failed to allocate Detour structures!" << std::endl;
        return 1;
    }

    dtStatus status = navQuery->init(navMesh, 2048);
    if (dtStatusSucceed(status)) {
        std::cout << "NavMeshQuery initialized (empty mesh baseline test successful)." << std::endl;
    }

    // Clean up allocated memory
    dtFreeNavMeshQuery(navQuery);
    dtFreeNavMesh(navMesh);

    std::cout << "Recast Navigation WebAssembly test completed successfully!" << std::endl;
    return 0;
}

2. File Contents for CMakeLists.txt 2. Содержимое файла CMakeLists.txt

Imports all core Recast & Detour WebAssembly static libraries (libRecast.a, libDetour.a, libDetourCrowd.a, etc.) and sets the necessary Emscripten link options: Импортирует все основные статические WebAssembly-библиотеки Recast и Detour (libRecast.a, libDetour.a, libDetourCrowd.a и др.) и настраивает необходимые флаги линковки Emscripten:

cmake_minimum_required(VERSION 3.21)
project(recast_wasm_test CXX)

set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

set(PROJECT_SOURCES
    main.cpp
)

add_executable(app)
target_sources(app PRIVATE ${PROJECT_SOURCES})

set(RECAST_DIR "C:/libs/recastnavigation-wasm")

target_include_directories(app PRIVATE
    ${RECAST_DIR}/include
    ${RECAST_DIR}/include/recastnavigation
)

add_library(Recast_Static STATIC IMPORTED)
set_target_properties(Recast_Static PROPERTIES
    IMPORTED_LOCATION "${RECAST_DIR}/lib/libRecast.a"
)

add_library(Detour_Static STATIC IMPORTED)
set_target_properties(Detour_Static PROPERTIES
    IMPORTED_LOCATION "${RECAST_DIR}/lib/libDetour.a"
)

add_library(DebugUtils_Static STATIC IMPORTED)
set_target_properties(DebugUtils_Static PROPERTIES
    IMPORTED_LOCATION "${RECAST_DIR}/lib/libDebugUtils.a"
)

add_library(DetourCrowd_Static STATIC IMPORTED)
set_target_properties(DetourCrowd_Static PROPERTIES
    IMPORTED_LOCATION "${RECAST_DIR}/lib/libDetourCrowd.a"
)

add_library(DetourTileCache_Static STATIC IMPORTED)
set_target_properties(DetourTileCache_Static PROPERTIES
    IMPORTED_LOCATION "${RECAST_DIR}/lib/libDetourTileCache.a"
)

target_link_libraries(app PRIVATE
    Recast_Static
    Detour_Static
    DebugUtils_Static
    DetourCrowd_Static
    DetourTileCache_Static
)

target_link_options(app PRIVATE
    "-sALLOW_MEMORY_GROWTH=1"
    "-sNODERAWFS=1"
)

Step 3: Create Build & Execution Scripts Шаг 3: Создание скриптов сборки и запуска

config-wasm.bat

call emcmake cmake -G "MinGW Makefiles" -S . -B dist/wasm

build-wasm.bat

cmake --build dist/wasm

run-wasm.bat

@echo off
node .\dist\wasm\app.js

Run the scripts sequentially in Command Prompt (CMD) with Emscripten activated: Последовательно запустите скрипты в командной строке (CMD) с активированным Emscripten:

config-wasm.bat
build-wasm.bat
run-wasm.bat

Step 4: Expected Output Шаг 4: Ожидаемый результат

After running the scripts with Node.js, you should see output similar to this: После запуска скриптов через Node.js вы должны увидеть результат, похожий на следующий:

Initializing Recast & Detour (WebAssembly)...
NavMeshQuery initialized (empty mesh baseline test successful).
Recast Navigation WebAssembly test completed successfully!