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/* Starshatter: The Open Source Project
Copyright (c) 2021-2022, 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
========
Abstract 3D Graphic Object
*/
#include "Graphic.h"
#include "Scene.h"
#include "Projector.h"
// +--------------------------------------------------------------------+
int Graphic::id_key = 1;
// +--------------------------------------------------------------------+
Graphic::Graphic()
: id(id_key++), visible(true), loc(0.0f, 0.0f, 0.0f),
radius(0.0f), infinite(0), foreground(0), hidden(0), life(-1),
trans(false), shadow(false), luminous(false), depth(0.0f), scene(0)
{
screen_rect.x = 0;
screen_rect.y = 0;
screen_rect.w = 0;
screen_rect.h = 0;
ZeroMemory(name, sizeof(name));
strcpy_s(name, "Graphic");
}
// +--------------------------------------------------------------------+
Graphic::~Graphic()
{ }
int
Graphic::operator < (const Graphic& g) const
{
if (!infinite && g.infinite)
return 1;
else if (infinite && !g.infinite)
return 0;
double za = fabs(Depth());
double zb = fabs(g.Depth());
return (za < zb);
}
int
Graphic::operator <= (const Graphic& g) const
{
if (!infinite && g.infinite)
return 1;
else if (infinite && !g.infinite)
return 0;
double za = fabs(Depth());
double zb = fabs(g.Depth());
return (za <= zb);
}
// +--------------------------------------------------------------------+
void
Graphic::SetInfinite(bool b)
{
infinite = (BYTE) b;
if (infinite)
depth = 1.0e9f;
}
// +--------------------------------------------------------------------+
int
Graphic::Nearer(Graphic* a, Graphic* b)
{
if (a->depth < b->depth) return -1;
else if (a->depth == b->depth) return 0;
else return 1;
}
// +--------------------------------------------------------------------+
int
Graphic::Farther(Graphic* a, Graphic* b)
{
if (a->depth > b->depth) return -1;
else if (a->depth == b->depth) return 0;
else return 1;
}
// +--------------------------------------------------------------------+
void
Graphic::Destroy()
{
if (scene)
scene->DelGraphic(this);
delete this;
}
// +--------------------------------------------------------------------+
int
Graphic::CollidesWith(Graphic& o)
{
Point delta_loc = loc - o.loc;
// bounding spheres test:
if (delta_loc.length() > radius + o.radius)
return 0;
return 1;
}
// +--------------------------------------------------------------------+
int
Graphic::CheckRayIntersection(Point Q, Point w, double len, Point& ipt,
bool treat_translucent_polys_as_solid)
{
return 0;
}
// +--------------------------------------------------------------------+
void
Graphic::ProjectScreenRect(Projector* p)
{
screen_rect.x = 2000;
screen_rect.y = 2000;
screen_rect.w = 0;
screen_rect.h = 0;
}
// +--------------------------------------------------------------------+
bool
Graphic::CheckVisibility(Projector& projector)
{
if (projector.IsVisible( Location(), Radius()) &&
projector.ApparentRadius(Location(), Radius()) > 1) {
visible = true;
}
else {
visible = false;
screen_rect.x = 2000;
screen_rect.y = 2000;
screen_rect.w = 0;
screen_rect.h = 0;
}
return visible;
}
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