This function returns a scale value for a given time.

Syntax

• float GetScaleAtTime(float time)

Parameters

• time: - A value between 0.0 and 1.0 specifying the time at which you want to find the scale. 0 being a particle's birth and 1 being a particles death.

Returns

This function returns a float with a value between 0.0 and 1.0 designating the scale at that time. 0.0 being tiny and 1.0 corresponding to max scale.

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);
        emitter->AddScaleControlPoint(0, 0);
        emitter->AddScaleControlPoint(1, 1);

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

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

                if (window->KeyDown(Key::Up) && time < 1.0)
                {
                        time += .01;
                }
                else if (window->KeyDown(Key::Down) && time > 0.0)
                {
                        time -= .01;
                }
                time = Math::Clamp(time, 0, 1);

                context->SetBlendMode(Blend::Alpha);
                context->DrawText("At  " + String(time * 100) + " percent of the particles life scale will be :" + String(emitter->GetScaleAtTime(time)), 2, 2);
                context->SetBlendMode(Blend::Solid);

                context->Sync();
        }
}