updated for windows

README.md

@@ -1,21 +1,32 @@
 # Godot bindings for the Rapier3D physics library
 
 ## How to use
+  There are two parts:
 
-There are two parts:
+  * A Godot module which must be compiled with the engine. This is necessary to
+    communicate with the library through the PhysicsServer
+  * A library with the actual bindings
 
-* A Godot module which must be compiled with the engine. This is necessary to
-  communicate with the library through the PhysicsServer
-* A library with the actual bindings
+## Linux:
 
-1. Run `module/generate.py` first
-2. Then, either make a symlink or copy the contents of `module` to the engine source
-3. Build the engine
-4. Build the library with the provided `Makefile` using `make`
-5. Set `3d/physics_engine` to `Custom`
+  - Run `module/generate.py` first
+  - Then, either make a symlink or copy the contents of `module` to the engine source `modules/pluggable_physics`
+  - Build the engine
+  - Build the library with the provided `Makefile` using `make`
+  - Set `3d/physics_engine` to `Custom`
 
-Note that these instructions have only been tested on Linux. If you have
-difficulties, please contact me or open an issue.
+## Windows:
+  - Run `python module/generate.py`
+  - Copy `module/api.json` to `rapier3d/api.json`
+  - Then, either make a symlink or copy the contents of `module` to the engine source `modules/pluggable_physics`
+  - Build the engine
+  - Build the library following these steps:
+    - ensure `LIBCLANG_PATH` environment variable is set to llvm's bin folder containing `libclang.dll`
+    - `rustup default nightly-msvc`
+      - If you get an error try: `cargo update`
+    - run `build_win.bat`
+  - Set `3d/physics_engine` to `Custom`
 
+If you have difficulties, please contact me or open an issue.
 
 # The editor may crash if you keep `3d/physics_engine` set to `Custom`. If it does, uncomment it in `project.godot`

addons/rapier3d/rapier3d.gdnlib

@@ -8,7 +8,9 @@ reloadable=false
 [entry]
 
 X11.64="res://addons/rapier3d/lib/librapier3d.so"
+Windows.64="res://addons/rapier3d/lib/rapier3d.dll"
 
 [dependencies]
 
 X11.64=[  ]
+Windows.64=[  ]

build_win.bat

@@ -0,0 +1,3 @@
+@echo off
+cargo build --target x86_64-pc-windows-msvc --release
+cp target/x86_64-pc-windows-msvc/release/rapier3d.dll addons/rapier3d/lib/rapier3d.dll

module/server.cpp

@@ -11,7 +11,7 @@
 
 
 PluggablePhysicsServer::PluggablePhysicsServer() {
-	zeromem(&this->fn_table, sizeof(this->fn_table));
+	memset(&this->fn_table, 0, sizeof(this->fn_table));
 	this->body_state_singleton = memnew(PluggablePhysicsDirectBodyState(this));
 	this->space_state_singleton = memnew(PluggablePhysicsDirectSpaceState(this));
 	this->body_state_singleton->space_state_singleton = this->space_state_singleton;

module/space_state.cpp

@@ -26,14 +26,14 @@ bool PluggablePhysicsDirectSpaceState::intersect_ray(const Vector3 &from, const
 	}
 
 	struct physics_ray_info info = {
-		.from = from,
-		.to = to,
-		.exclude = e_list,
-		.exclude_count = (size_t)exclude.size(),
-		.collision_mask = collision_mask,
-		.collide_with_bodies = collide_with_bodies,
-		.collide_with_areas = collide_with_areas,
-		.pick_ray = pick_ray,
+		from,
+		to,
+		e_list,
+		(size_t)exclude.size(),
+		collision_mask,
+		collide_with_bodies,
+		collide_with_areas,
+		pick_ray,
 	};
 	struct physics_ray_result prr = {};
 	bool collided = (*this->server->fn_table.space_intersect_ray)(this->space, &info, &prr);