This function creates a new hinge joint.

Syntax

• static Joint* Hinge(float posx, float posy, float posz, float pinx, float piny, float pinz, Entity* child, Entity* parent=NULL)

Parameters

• posx: the x component of the joint position.
• posy: the y component of the joint position.
• posz: the z component of the joint position.
• pinx: the x component of the joint pin.
• piny: the y component of the joint pin.
• pinz: the z component of the joint pin.
• child: the child entity.
• parent: the parent entity. This may be NULL.

Example

#include "Leadwerks.h"

using namespace Leadwerks;

float angle = 25;
Joint* joint;

int main(int argc, const char *argv[])
{
        Leadwerks::Window* window = Leadwerks::Window::Create();
        Context* context = Context::Create(window);
        World* world = World::Create();
        Camera* camera = Camera::Create();
        camera->Move(0, 0, -4);
        Light* light = DirectionalLight::Create();
        light->SetRotation(35, 35, 0);

        Entity* parent = Model::Box();
        parent->SetColor(0.0, 0.0, 1.0);

        Entity* child = Model::Box();
        child->SetColor(1.0, 0.0, 0.0);
        child->SetShape(Shape::Box());
        child->SetMass(1);
        child->SetPosition(2, 0, 0);

        joint = Joint::Hinge(0, 0, 0, 0, 0, 1, child, parent);
        joint->EnableLimits();
        joint->SetLimits(-45, 45);
        joint->EnableMotor();

        while (true)
        {
                if (window->Closed() || window->KeyDown(Key::Escape)) return false;

                if (window->KeyDown(Key::Up)) angle += 1.0;
                if (window->KeyDown(Key::Down)) angle -= 1.0;
                joint->SetAngle(angle);
                if (window->KeyHit(Key::Space))
                {
                        if (!joint->MotorEnabled())
                        {
                                joint->EnableMotor();
                        }
                        else
                        {
                                joint->DisableMotor();
                        }
                }

                Leadwerks::Time::Update();
                world->Update();
                world->Render();

                context->SetBlendMode(Blend::Alpha);
                context->DrawText("Target angle: " + String(angle), 0, 0);
                context->DrawText("Current angle: " + String(joint->GetAngle()), 0, 20);
                context->DrawText("Motor enabled: " + String(joint->MotorEnabled()), 0, 40);
                context->SetBlendMode(Blend::Solid);

                context->Sync();
        }
        return 0;
}