JoltJava

Java bindings for JoltPhysics with C bindings based on zig-gamedev JoltPhysicsC

This project is no longer being developed.

The bindings are feature-incomplete and unstable.

Please use jolt-jni instead.

Coverage

Features:

• Rigid bodies
  • Body interface
  • Body locking
  • Motion properties
• Shapes
  • Convex
  • Compound
  • Decorator
  • Mesh/height field
• Queries
  • Broad phase
  • Narrow phase
• Listeners
  • Step
  • Contact
• Double precision
• Constraints
  • Two-body constraints
• Vehicles
• Ragdolls
• Characters

Platforms:

• Linux (x86_64)
• Windows (x86_64)
• MacOS (x86_64)

Build types (change with Gradle flag -PbuildType= or property buildType):

• debug
• release
• distribution (default)

Flavors (change with Gradle flag -PbuildFlavor= or property buildFlavor):

• sp (single-precision floating point, default)
• dp (double-precision floating point)

Usage

repositories {
    mavenCentral()
}

dependencies {
    implementation("com.github.stephengold", "jolt-java", "0.1.0")
    runtimeOnly("com.github.stephengold", "jolt-java-natives-linux-x86", "0.1.0")
}

Usage is very similar to JoltPhysics. See HelloJolt.java to get a minimal implementation.

Note: these bindings are fairly low-level. For some classes such as the vector and matrix classes, you are expected to write your own wrappers around them.

Setup

// Load the native libraries from the jar (in `jolt/`)
Jolt.load();
// Or load them manually
// System.load("name-of-lib-file");

// Do some Jolt setup
Jolt.registerDefaultAllocator();
Jolt.createFactory();
Jolt.registerTypes();

Building from source

On Windows, you need Ninja installed.

git clone https://github.com/stephengold/jolt-java
cd jolt-java
./gradlew build