91 lines
No EOL
2.7 KiB
C++
91 lines
No EOL
2.7 KiB
C++
#include "wedgepart.h"
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#include "physics/util.h"
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#include <reactphysics3d/collision/ConvexMesh.h>
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#include <reactphysics3d/collision/shapes/ConvexMeshShape.h>
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rp::ConvexMesh* wedgePhysMesh;
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WedgePart::WedgePart(): BasePart(&TYPE) {
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}
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WedgePart::WedgePart(PartConstructParams params): BasePart(&TYPE, params) {
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}
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void WedgePart::updateCollider(rp::PhysicsCommon* common) {
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rp::ConvexMeshShape* shape = common->createConvexMeshShape(wedgePhysMesh, glmToRp(size * glm::vec3(0.5f)));
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// Recreate the rigidbody if the shape changes
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if (rigidBody->getNbColliders() > 0
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&& dynamic_cast<rp::ConvexMeshShape*>(rigidBody->getCollider(0)->getCollisionShape())->getScale() != shape->getScale()) {
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// TODO: This causes Touched to get called twice. Fix this.
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rigidBody->removeCollider(rigidBody->getCollider(0));
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rigidBody->addCollider(shape, rp::Transform());
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}
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if (rigidBody->getNbColliders() == 0)
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rigidBody->addCollider(shape, rp::Transform());
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}
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void WedgePart::createWedgeShape(rp::PhysicsCommon* common) {
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// https://www.reactphysics3d.com/documentation/index.html#creatingbody
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float vertices[] = {
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// X Y Z
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/*0*/ -1, 1, 1, // 0
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/*1*/ -1, -1, 1, // |
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/*2*/ -1, -1, -1, // 1---2
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/*3*/ 1, 1, 1,
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/*4*/ 1, -1, 1,
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/*5*/ 1, -1, -1,
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};
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// -x +x
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// +z 1----------4
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// | bottom |
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// -z 2----------5
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// -x +x
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// +y 0----------3
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// | front |
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// -y 1----------4
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// -x +x
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// +yz 0----------3
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// | slope |
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// -yz 2----------5
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int indices[] = {
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// Base
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1, 2, 5, 4,
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// Back-face
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0, 1, 4, 3,
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// 4, 1, 0, 3,
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// Slope
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0, 2, 5, 3,
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// 3, 5, 2, 0,
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// Sides
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0, 1, 2,
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3, 4, 5,
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};
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// Description of the six faces of the convex mesh
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rp::PolygonVertexArray::PolygonFace* polygonFaces = new rp::PolygonVertexArray::PolygonFace[5];
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polygonFaces[0] = { 4, 0 }; // Bottom
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polygonFaces[1] = { 4, 4 }; // Front
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polygonFaces[2] = { 4, 8 }; // Slope
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polygonFaces[3] = { 3, 12 }; // Side
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polygonFaces[4] = { 3, 15 }; // Side
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// Create the polygon vertex array
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rp::PolygonVertexArray polygonVertexArray(6, vertices, 3 * sizeof(float), indices, sizeof(int), 5, polygonFaces,
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rp::PolygonVertexArray::VertexDataType::VERTEX_FLOAT_TYPE,
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rp::PolygonVertexArray::IndexDataType::INDEX_INTEGER_TYPE);
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// Create the convex mesh
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std::vector<rp3d::Message> messages;
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wedgePhysMesh = common->createConvexMesh(polygonVertexArray, messages);
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} |