/*  Starshatter: The Open Source Project
    Copyright (c) 2021-2024, Starshatter: The Open Source Project Contributors
    Copyright (c) 2011-2012, Starshatter OpenSource Distribution Contributors
    Copyright (c) 1997-2006, Destroyer Studios LLC.

    AUTHOR:       John DiCamillo


    OVERVIEW
    ========
    Dynamic Light Source
*/

#include "Light.h"
#include "Scene.h"

// +--------------------------------------------------------------------+

int Light::id_key = 1;

// +--------------------------------------------------------------------+

Light::Light(float l, float dl, int time)
: id(id_key++), type(LIGHT_POINT), life(time),
light(l), dldt(dl), color(255,255,255),
active(true), shadow(false), scene(0)
{ }

// +--------------------------------------------------------------------+

Light::~Light()
{ }

// +--------------------------------------------------------------------+

void
Light::Update()
{
    if (dldt < 1.0f)
    light *= dldt;

    if (life > 0) life--;
}

// +--------------------------------------------------------------------+

void
Light::Destroy()
{
    if (scene)
    scene->DelLight(this);

    delete this;
}

// +--------------------------------------------------------------------+

void
Light::MoveTo(const Point& dst)
{
    //if (type != LIGHT_DIRECTIONAL)
    loc = dst;
}

void
Light::TranslateBy(const Point& ref)
{
    if (type != LIGHT_DIRECTIONAL)
    loc = loc - ref;
}