This function returns the initial velocity or the random velocity of released particles.

Syntax

• Vec3 GetVelocity(int index=0)

Parameters

• index: - differentiates between setting initial velocity or random velocity. 0 = initial velocity, 1 = random velocity.

Returns

This function returns a Vec3 containing the set initial velocity of released particles.

Remarks

Please note: Starting velocity is calculated as follows: StartVelocity = velocity[0] + Random(-.5*velocity[1], .5*velocity[1]).

Example

#include "Leadwerks.h"

using namespace Leadwerks;

int main(int argc, const char *argv[])
{
        float time = 0.5;

        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, -3);

        //Create an emitter
        Emitter* emitter = Emitter::Create(100);

        int timercount = 0;

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

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

                if (++timercount % 100 == 0)
                {
                        emitter->SetVelocity(Math::Random(-1, 1), Math::Random(-1, 1), Math::Random(-1, 1), 0);
                        emitter->SetVelocity(Math::Random(-1, 1), Math::Random(-1, 1), Math::Random(-1, 1), 1);
                }

                context->SetBlendMode(Blend::Alpha);
                context->DrawText("Current Base Velocity: " + (emitter->GetVelocity(0)).ToString(), 2, 2);
                context->DrawText("Current Random Velocity: " + (emitter->GetVelocity(1)).ToString(), 2, 20);
                context->SetBlendMode(Blend::Solid);

                context->Sync();
        }
}