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feat(part): made wedge part mesh (not working)

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maelstrom 2025-07-14 00:53:02 +02:00
parent bb3132d4ba
commit 8b789fc9b6
3 changed files with 75 additions and 2 deletions
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71
core/src/objects/part/wedgepart.cpp
View file

@ -1,5 +1,9 @@
#include "wedgepart.h"
#include "physics/util.h"
#include <reactphysics3d/collision/ConvexMesh.h>
#include <reactphysics3d/collision/shapes/ConvexMeshShape.h>
rp::ConvexMesh* wedgePhysMesh;
WedgePart::WedgePart(): BasePart(&TYPE) {
}
@ -9,11 +13,11 @@ WedgePart::WedgePart(PartConstructParams params): BasePart(&TYPE, params) {
}
void WedgePart::updateCollider(rp::PhysicsCommon* common) {
rp::BoxShape* shape = common->createBoxShape(glmToRp(size * glm::vec3(0.5f)));
rp::ConvexMeshShape* shape = common->createConvexMeshShape(wedgePhysMesh, glmToRp(size * glm::vec3(0.5f)));
// Recreate the rigidbody if the shape changes
if (rigidBody->getNbColliders() > 0
&& dynamic_cast<rp::BoxShape*>(rigidBody->getCollider(0)->getCollisionShape())->getHalfExtents() != shape->getHalfExtents()) {
&& dynamic_cast<rp::ConvexMeshShape*>(rigidBody->getCollider(0)->getCollisionShape())->getScale() != shape->getScale()) {
// TODO: This causes Touched to get called twice. Fix this.
rigidBody->removeCollider(rigidBody->getCollider(0));
rigidBody->addCollider(shape, rp::Transform());
@ -21,4 +25,67 @@ void WedgePart::updateCollider(rp::PhysicsCommon* common) {
if (rigidBody->getNbColliders() == 0)
rigidBody->addCollider(shape, rp::Transform());
}
void WedgePart::createWedgeShape(rp::PhysicsCommon* common) {
// https://www.reactphysics3d.com/documentation/index.html#creatingbody
float vertices[] = {
// X Y Z
/*0*/ -1, 1, 1, // 0
/*1*/ -1, -1, 1, // |
/*2*/ -1, -1, -1, // 1---2
/*3*/ 1, 1, 1,
/*4*/ 1, -1, 1,
/*5*/ 1, -1, -1,
};
// -x +x
// +z 1----------4
// | bottom |
// -z 2----------5
// -x +x
// +y 0----------3
// | front |
// -y 1----------4
// -x +x
// +yz 0----------3
// | slope |
// -yz 2----------5
int indices[] = {
// Base
1, 2, 5, 4,
// Back-face
0, 1, 4, 3,
// 4, 1, 0, 3,
// Slope
0, 2, 5, 3,
// 3, 5, 2, 0,
// Sides
0, 1, 2,
3, 4, 5,
};
// Description of the six faces of the convex mesh
rp::PolygonVertexArray::PolygonFace* polygonFaces = new rp::PolygonVertexArray::PolygonFace[5];
polygonFaces[0] = { 4, 0 }; // Bottom
polygonFaces[1] = { 4, 4 }; // Front
polygonFaces[2] = { 4, 8 }; // Slope
polygonFaces[3] = { 3, 12 }; // Side
polygonFaces[4] = { 3, 15 }; // Side
// Create the polygon vertex array
rp::PolygonVertexArray polygonVertexArray(6, vertices, 3 * sizeof(float), indices, sizeof(int), 5, polygonFaces,
rp::PolygonVertexArray::VertexDataType::VERTEX_FLOAT_TYPE,
rp::PolygonVertexArray::IndexDataType::INDEX_INTEGER_TYPE);
// Create the convex mesh
std::vector<rp3d::Message> messages;
wedgePhysMesh = common->createConvexMesh(polygonVertexArray, messages);
}

2
core/src/objects/part/wedgepart.h
View file

@ -8,7 +8,9 @@ class DEF_INST WedgePart : public BasePart {
protected:
void updateCollider(rp::PhysicsCommon* common) override;
static void createWedgeShape(rp::PhysicsCommon* common);
friend Workspace;
public:
WedgePart();
WedgePart(PartConstructParams params);

4
core/src/objects/service/workspace.cpp
View file

@ -5,6 +5,7 @@
#include "logger.h"
#include "objects/base/instance.h"
#include "objects/part/part.h"
#include "objects/part/wedgepart.h"
#include "objects/service/jointsservice.h"
#include "objects/joint/jointinstance.h"
#include "objects/datamodel.h"
@ -82,6 +83,9 @@ void Workspace::InitService() {
physicsWorld->setEventListener(&physicsEventListener);
// Create meshes
WedgePart::createWedgeShape(physicsCommon);
// Sync all parts
for (auto it = this->GetDescendantsStart(); it != this->GetDescendantsEnd(); it++) {
std::shared_ptr<Instance> obj = *it;