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godot-cpp
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Bindings are generated by default; Replaced generate with regenerate flag; Updated readme

pull/99/head
QuentinCaffeino 2018-02-25 16:25:42 +01:00
parent 38cfd627f3
commit 43f57c7f80
3 changed files with 31 additions and 43 deletions
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3
Makefile
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@ -1,10 +1,11 @@
GODOT_BIN_PATH = ../godot_fork/bin/godot.x11.tools.64.llvm GODOT_BIN_PATH = ../godot_fork/bin/godot.x11.tools.64.llvm
REGENERATE_BINDINGS = no
HEADERS = ../godot_headers HEADERS = ../godot_headers
TARGET = debug TARGET = debug
NAME = godot-cpp NAME = godot-cpp
BASE = scons n=$(NAME) generate_bindings=yes target=$(TARGET) headers=$(HEADERS) godotbinpath=$(GODOT_BIN_PATH) -j4 BASE = scons n=$(NAME) regenerate_bindings=$(REGENERATE_BINDINGS) target=$(TARGET) headers=$(HEADERS) godotbinpath=$(GODOT_BIN_PATH) -j4
LINUX = $(BASE) p=linux LINUX = $(BASE) p=linux
WINDOWS = $(BASE) p=windows WINDOWS = $(BASE) p=windows
OSX = $(BASE) p=osx OSX = $(BASE) p=osx

57
README.md
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@ -1,54 +1,45 @@
# cpp_bindings # godot-cpp
C++ bindings for the Godot script API C++ bindings for the Godot script API
# Creating a GDNative library (Linux) # Creating a GDNative library (Linux)
Create a directory named `SimpleLibrary` with subdirectories `lib, src` Create a directory named `SimpleLibrary` with subdirectories `lib, src`
Getting latest `cpp_bindings` and `godot_headers` Getting latest `godot-cpp` and `godot_headers`
``` ```
$ cd SimpleLibrary $ git clone https://github.com/GodotNativeTools/godot-cpp
$ git clone https://github.com/GodotNativeTools/cpp_bindings
$ git clone https://github.com/GodotNativeTools/godot_headers $ git clone https://github.com/GodotNativeTools/godot_headers
``` ```
right now our directory structure should look like this right now our directory structure should look like this:
``` ```
[SimpleLibrary] godot-cpp
├── cpp_bindings/ godot_headers
├── godot_headers/ SimpleLibrary
├── lib/ ├── lib/
└── src/ └── src/
``` ```
Now to generate cpp bindings Now to generate cpp bindings
``` ```
$ cd cpp_bindings $ cd godot-cpp
``` $ scons godotbinpath="../godot_fork/bin/godot_binary" p=linux
$ cd ..
Edit `SConstruct` file and assign your godot executable path at line:7 `godot_bin_path = "../godot_fork/bin/"`,
Building cpp_bindings
```
$ scons godotbinpath="../godot_fork/bin/godot_binary" headers="../godot_headers/" p=linux generate_bindings=yes
``` ```
resulting libraries will be placed under `bin/` and the generated headers will be placed under `include/*` resulting libraries will be placed under `bin/` and the generated headers will be placed under `include/*`
**Note:** **Note:**
> `generate_bindings=yes` is used to generate C++ bindings (`godot_api.json` - Godot API) > `regenerate_bindings=yes` is used to force regenerating C++ bindings (`godot_api.json` - Godot API)
> Include `use_llvm=yes` for using clang++ > Include `use_llvm=yes` for using clang++
Copy binding libraries into the `SimpleLibrary/lib` folder
```
$ cd ..
$ cp cpp_bindings/bin/libgodot_cpp_bindings.a lib/
```
And our directory structure will be And our directory structure will be
``` ```
[SimpleLibrary] godot-cpp
├── cpp_bindings/ └── bin/libgodot-cpp.a
├── godot_headers/ godot_headers
├── lib/ SimpleLibrary
│ └──libgodot_cpp_bindings.a ├── lib/
└── src/ └── src/
``` ```
# Creating simple class # Creating simple class
@ -115,9 +106,9 @@ extern "C" void GDN_EXPORT godot_nativescript_init(void *handle)
# Compiling # Compiling
``` ```
$ cd .. $ cd SimpleLibrary
$ clang -fPIC -o src/init.os -c src/init.cpp -g -O3 -std=c++14 -Icpp_bindings/include -Igodot_headers $ clang -fPIC -o src/init.os -c src/init.cpp -g -O3 -std=c++14 -I../godot-cpp/include -Igodot_headers
$ clang -o lib/libtest.so -shared src/init.os -Llib -lgodot_cpp_bindings $ clang -o lib/libtest.so -shared src/init.os -L../godot-cpp/lib -lgodot-cpp
``` ```
This creates the file `libtest.so` in your `SimpleLibrary/lib` directory. For windows you need to find out what compiler flags need to be used. This creates the file `libtest.so` in your `SimpleLibrary/lib` directory. For windows you need to find out what compiler flags need to be used.

14
SConstruct
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@ -3,9 +3,6 @@
import os, subprocess, platform import os, subprocess, platform
def add_source(sources, name):
sources.append(name)
def add_sources(sources, dir, extension): def add_sources(sources, dir, extension):
for f in os.listdir(dir): for f in os.listdir(dir):
if f.endswith('.' + extension): if f.endswith('.' + extension):
@ -21,7 +18,7 @@ target = ARGUMENTS.get('target', 'debug')
# Local dependency paths, adapt them to your setup # Local dependency paths, adapt them to your setup
godot_headers = ARGUMENTS.get('headers', '../godot_headers') godot_headers = ARGUMENTS.get('headers', '../godot_headers')
godot_bin_path = ARGUMENTS.get('godotbinpath', os.getenv('GODOT_BIN_PATH', '../godot_fork/bin/godot.x11.tools.64.llvm')) godot_bin_path = ARGUMENTS.get('godotbinpath', os.getenv('GODOT_BIN_PATH', '../godot_fork/bin/godot.x11.tools.64.llvm'))
result_path = 'bin/' result_path = 'bin'
result_name = ARGUMENTS.get('n', ARGUMENTS.get('name', os.path.relpath('.', '..'))) result_name = ARGUMENTS.get('n', ARGUMENTS.get('name', os.path.relpath('.', '..')))
@ -53,7 +50,7 @@ elif target_platform == 'windows':
result_name += '.windows.' + target_arch result_name += '.windows.' + target_arch
if host_platform == 'Windows': if host_platform == 'Windows':
result_name += '.dll' result_name += '.lib'
env.Append(LINKFLAGS = [ '/WX' ]) env.Append(LINKFLAGS = [ '/WX' ])
if target == 'debug': if target == 'debug':
@ -77,10 +74,9 @@ elif platform == 'osx':
env.Append(CPPPATH=['.', godot_headers, 'include', 'include/core']) env.Append(CPPPATH=['.', godot_headers, 'include', 'include/core'])
if ARGUMENTS.get('generate_bindings', 'no') == 'yes': # Generate bindings
# TODO Generating the API should be done only if the Godot build is more recent than the JSON file json_api_file = os.path.join(os.getcwd(), 'godot_api.json')
json_api_file = os.path.join(os.getcwd(), 'godot_api.json') if os.path.exists(json_api_file) == False or ARGUMENTS.get('regenerate_bindings', 'no') == 'yes':
subprocess.call([os.path.expanduser(godot_bin_path), '--gdnative-generate-json-api', json_api_file]) subprocess.call([os.path.expanduser(godot_bin_path), '--gdnative-generate-json-api', json_api_file])
# actually create the bindings here # actually create the bindings here