This function specifies a max size for scaling particles.

Syntax

• void SetMaxScale(float maxscale)
• void SetMaxScale(float max_x, float max_y)

Parameters

• maxscale: The maximum size of a particle. 1.0 = original size, 2.0 = twice original size...
• max_x: Maximum particle width.
• max_y: Maximum particle height.

Example

#include "Leadwerks.h"

using namespace Leadwerks;

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, -3);

    float maxscale = 1;

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

    emitter->ClearScaleControlPoints();//Remove default control points

    emitter->AddScaleControlPoint(0, 0); //at spawn the particle will have an alpha of 0 (fully transparent)
    emitter->AddScaleControlPoint(.5, 1); //halfway through the particle's lifetime alpha will be 1 (ie not transparent)
    emitter->AddScaleControlPoint(1, 0); //at death the particle will be fully transparent
    
    while (true)
    {
        if (window->Closed() || window->KeyDown(Key::Escape)) return false;

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

        //use up and down arrow key to adjust maxscale
        if (window->KeyDown(Key::Up))
        {
            ++maxscale;
            emitter->SetMaxScale(maxscale);
        }
        else if (window->KeyDown(Key::Down) && maxscale > 0)
        {
            --maxscale;
            emitter->SetMaxScale(maxscale);
        }

        context->SetBlendMode(Blend::Alpha);
        context->DrawText("Max Scale: " + emitter->GetMaxScale().ToString(), 2, 2);
        context->SetBlendMode(Blend::Solid);

        context->Sync();
    }
}