This function builds a navigation mesh for AI pathfinding.

Syntax

• bool World::BuildNavMesh(float maxedgelength=12.0, float maxedgeerror=1.3)

Parameters

• maxedgelength: an upper limit on the maximum length of a navmesh edge.
• maxedgeerror: an error tolerance for connecting polygon edges.

Returns

Returns a 4x4 matrix describing the tire's position and orientation in space.

Example

#include "Leadwerks.h"

using namespace Leadwerks;
Entity* entity = NULL;
Entity* player = NULL;

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->SetRotation(35, 0, 0);
    camera->Move(0, 0, -8);
    Light* light = DirectionalLight::Create();
    light->SetRotation(35, 35, 0);

    //Enable navmesh debugging
    camera->SetDebugNavigationMode(true);

    //Create the ground
    Model* ground = Model::Box(10, 1, 10);
    ground->SetPosition(0, -0.5, 0);
    ground->SetColor(0.0, 0.25, 0.0);

    //Create a shape
    Shape* shape = Shape::Box(0, 0, 0, 0, 0, 0, 10, 1, 10);
    ground->SetShape(shape);
    shape->Release();

    //Create a model
    //This is an obstacle the player will walk around
    entity = Model::Box(1, 1, 3);
    entity->SetColor(0.0, 0.0, 1.0);
    entity->SetPosition(0, 0.5, 0);

    //Create a shape
    shape = Shape::Box(0, 0, 0, 0, 0, 0, 1, 1, 3);
    entity->SetShape(shape);
    shape->Release();

    //Enable navigation obstacles
    ground->SetNavigationMode(true);
    entity->SetNavigationMode(true);

    //Build the navigation mesh
    world->BuildNavMesh();

    //Create a character
    player = Pivot::Create();
    Entity* visiblecapsule = Model::Cylinder(16, player);
    visiblecapsule->SetScale(1, 2, 1);
    visiblecapsule->SetPosition(0, 1, 0);
    player->SetPosition(-4, 0, 0);
    player->SetMass(1);
    player->SetPhysicsMode(Entity::CharacterPhysics);


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

        if (player) player->GoToPoint(4, 0, 0, 1.4, 1);

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

        context->SetBlendMode(Blend::Alpha);
        context->DrawText("NavMode: " + String(entity->GetNavigationMode()), 2, 2);

        context->Sync();

    }
    return 0;
}