mirror of
https://github.com/johndoe6345789/SDL3CPlusPlus.git
synced 2026-04-24 21:55:09 +00:00
johndoe6345789
5a4dd23df2
- Added PhysicsBridge class to manage physics interactions using Bullet Physics. - Introduced ScriptEngine class to handle Lua scripting, including loading scene objects and managing audio commands. - Updated test_cube_script to utilize ScriptEngine instead of CubeScript, ensuring compatibility with new architecture. - Implemented methods for loading meshes, creating physics objects, and handling audio playback within the ScriptEngine. - Enhanced error handling and input management for Lua scripts.
92 lines
2.8 KiB
C++
92 lines
2.8 KiB
C++
#include "script/physics_bridge.hpp"
|
|
|
|
#include <btBulletDynamicsCommon.h>
|
|
|
|
namespace sdl3cpp::script {
|
|
|
|
PhysicsBridge::PhysicsBridge()
|
|
: collisionConfig_(std::make_unique<btDefaultCollisionConfiguration>()),
|
|
dispatcher_(std::make_unique<btCollisionDispatcher>(collisionConfig_.get())),
|
|
broadphase_(std::make_unique<btDbvtBroadphase>()),
|
|
solver_(std::make_unique<btSequentialImpulseConstraintSolver>()),
|
|
world_(std::make_unique<btDiscreteDynamicsWorld>(
|
|
dispatcher_.get(),
|
|
broadphase_.get(),
|
|
solver_.get(),
|
|
collisionConfig_.get())) {
|
|
world_->setGravity(btVector3(0.0f, -9.81f, 0.0f));
|
|
}
|
|
|
|
PhysicsBridge::~PhysicsBridge() {
|
|
if (world_) {
|
|
for (auto& [name, entry] : bodies_) {
|
|
if (entry.body) {
|
|
world_->removeRigidBody(entry.body.get());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bool PhysicsBridge::addBoxRigidBody(const std::string& name,
|
|
const btVector3& halfExtents,
|
|
float mass,
|
|
const btTransform& transform,
|
|
std::string& error) {
|
|
if (name.empty()) {
|
|
error = "Rigid body name must not be empty";
|
|
return false;
|
|
}
|
|
if (!world_) {
|
|
error = "Physics world is not initialized";
|
|
return false;
|
|
}
|
|
if (bodies_.count(name)) {
|
|
error = "Rigid body already exists: " + name;
|
|
return false;
|
|
}
|
|
auto shape = std::make_unique<btBoxShape>(halfExtents);
|
|
btVector3 inertia(0.0f, 0.0f, 0.0f);
|
|
if (mass > 0.0f) {
|
|
shape->calculateLocalInertia(mass, inertia);
|
|
}
|
|
auto motionState = std::make_unique<btDefaultMotionState>(transform);
|
|
btRigidBody::btRigidBodyConstructionInfo constructionInfo(
|
|
mass,
|
|
motionState.get(),
|
|
shape.get(),
|
|
inertia);
|
|
auto body = std::make_unique<btRigidBody>(constructionInfo);
|
|
world_->addRigidBody(body.get());
|
|
bodies_.emplace(name, BodyRecord{
|
|
std::move(shape),
|
|
std::move(motionState),
|
|
std::move(body),
|
|
});
|
|
return true;
|
|
}
|
|
|
|
int PhysicsBridge::stepSimulation(float deltaTime) {
|
|
if (!world_) {
|
|
return 0;
|
|
}
|
|
return static_cast<int>(world_->stepSimulation(deltaTime, 10, 1.0f / 60.0f));
|
|
}
|
|
|
|
bool PhysicsBridge::getRigidBodyTransform(const std::string& name,
|
|
btTransform& outTransform,
|
|
std::string& error) const {
|
|
auto it = bodies_.find(name);
|
|
if (it == bodies_.end()) {
|
|
error = "Rigid body not found: " + name;
|
|
return false;
|
|
}
|
|
if (!it->second.motionState) {
|
|
error = "Rigid body motion state is missing";
|
|
return false;
|
|
}
|
|
it->second.motionState->getWorldTransform(outTransform);
|
|
return true;
|
|
}
|
|
|
|
} // namespace sdl3cpp::script
|