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ebox.cpp
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ebox.cpp
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/* ebox version 3:
* by Jon Rafkind
*/
#include "ebox.h"
#include <stdio.h>
#include "funcs.h"
#include "bitmap.h"
#include <iostream>
using namespace std;
// extern "C" void rest( int i );
// using namespace Ebox2;
#ifndef debug
// #define debug printf("File: %s Line: %d\n", __FILE__, __LINE__ );
#define debug std::cout<<"File: "<<__FILE__<<" Line: "<<__LINE__<<std::endl;
#endif
// #define MIN_SIZE 8
const int MIN_SIZE = 8;
/* copy constructor but with a pointer */
EQuad::EQuad( EQuad * const head ):
width( head->width ),
height( head->height ),
full( head->full ),
min_x( head->min_x ),
min_y( head->min_y ),
parent( NULL ),
num_quads( head->num_quads ){
for ( int q = 0; q < 4; q++ )
quads[q] = NULL;
for ( int i = 0; i < head->numQuads(); i++ ){
// EQuad * tmp = head->getQuad( i );
quads[i] = new EQuad( head->getQuad( i ) );
quads[i]->parent = this;
}
}
EQuad::EQuad( int w, int h, EQuad * _parent ):
width( w ),
height( h ),
min_x( 0 ),
min_y( 0 ),
parent( _parent ),
num_quads( 0 ){
full = true;
for ( int i = 0; i < 4; i++ )
quads[i] = NULL;
}
EQuad::EQuad( const Graphics::Bitmap * who, int min_size, Graphics::Color mask_pixel, int _min_x, int _min_y, EQuad * _parent ):
width( who->getWidth() ),
height( who->getHeight() ),
full( false ),
min_x( _min_x ),
min_y( _min_y ),
parent( _parent ){
Graphics::Bitmap * b1, * b2, * b3, * b4;
EQuad * quad1, * quad2, * quad3, * quad4;
quad1 = quad2 = quad3 = quad4 = NULL;
if ( width > min_size && height > min_size ){
int w = who->getWidth() >> 1;
int h = who->getHeight() >> 1;
// b1 = create_sub_Bitmap( who, 0, 0, w, h );
b1 = new Graphics::Bitmap( *who, 0, 0, w, h );
quad1 = new EQuad( b1, min_size, mask_pixel, 0, 0, this );
// destroy_Bitmap( b1 );
delete b1;
// b2 = create_sub_Bitmap( who, w, 0, w, h );
b2 = new Graphics::Bitmap( *who, w, 0, w, h );
quad2 = new EQuad( b2, min_size, mask_pixel, w, 0, this );
delete b2;
// destroy_Bitmap( b2 );
// b3 = create_sub_Bitmap( who, 0, h, w, h );
b3 = new Graphics::Bitmap( *who, 0, h, w, h );
quad3 = new EQuad( b3, min_size, mask_pixel, 0, h, this );
delete b3;
// destroy_Bitmap( b3 );
// b4 = create_sub_Bitmap( who, w, h, w, h );
b4 = new Graphics::Bitmap( *who, w, h, w, h );
quad4 = new EQuad( b4, min_size, mask_pixel, w, h, this );
delete b4;
// destroy_Bitmap( b4 );
if ( quad1->empty() ){
delete quad1;
quad1 = NULL;
}
if ( quad2->empty() ){
delete quad2;
quad2 = NULL;
}
if ( quad3->empty() ){
delete quad3;
quad3 = NULL;
}
if ( quad4->empty() ){
delete quad4;
quad4 = NULL;
}
if ( quad1 && quad2 && quad3 && quad4 )
if ( quad1->full && quad2->full && quad3->full && quad4->full ){
delete quad1;
delete quad2;
delete quad3;
delete quad4;
quad1 = NULL;
quad2 = NULL;
quad3 = NULL;
quad4 = NULL;
full = true;
}
checkQuad( quad1 );
checkQuad( quad2 );
checkQuad( quad3 );
checkQuad( quad4 );
} else {
// printf("Size X:%d Y:%d\n", width, height );
int total = 0;
int denom = who->getWidth() * who->getHeight();
/* empty sprite? */
if (denom < 1){
denom = 1;
}
int width = who->getWidth();
int height = who->getHeight();
for (int x = 0; x < width; x++){
for (int y = 0; y < height; y++){
// int pixel = _getpixel16( who, x, y );
Graphics::Color pixel = who->getPixel(x, y);
if (pixel != mask_pixel){
++total;
}
if ( total * 100 / denom > 50 ){
/* we're done already,
* stop counting pixels
*/
goto short_circuit;
}
}
}
/* johnny 5 alive! */
short_circuit:
if ( total * 100 / denom > 50 ){
full = true;
}
}
for ( int i = 0; i < 4; i++ )
quads[i] = NULL;
int i = 0;
if ( quad1 ) quads[i++] = quad1;
if ( quad2 ) quads[i++] = quad2;
if ( quad3 ) quads[i++] = quad3;
if ( quad4 ) quads[i++] = quad4;
num_quads = numQuads();
}
bool EQuad::addQuad( EQuad * who ){
int n = numQuads();
if ( n < 4 ){
quads[n] = who;
full = false;
return true;
} else return false;
}
void EQuad::checkQuad( EQuad *& q ){
if ( q != NULL ){
while ( q->numQuads() == 1 ){
EQuad * const newquad = q->getQuad();
q->detach( newquad );
int x = q->getMinX();
int y = q->getMinY();
delete q;
q = newquad;
newquad->setMinX( newquad->getMinX() + x );
newquad->setMinY( newquad->getMinY() + y );
q->parent = this;
}
}
}
int EQuad::totalQuads(){
if ( full ) return 1;
int total = 0;
for ( int i = 0; i < numQuads(); i++ )
if ( quads[i] )
total += quads[i]->totalQuads();
/*
if ( quad1 ) total += quad1->totalQuads();
if ( quad2 ) total += quad2->totalQuads();
if ( quad3 ) total += quad3->totalQuads();
if ( quad4 ) total += quad4->totalQuads();
*/
return total;
}
void EQuad::setMinX( int x ){
min_x = x;
}
void EQuad::setMinY( int y ){
min_y = y;
}
/*
int EQuad::numQuads() const{
int total = 0;
/ *
if ( quad1 ) ++total;
if ( quad2 ) ++total;
if ( quad3 ) ++total;
if ( quad4 ) ++total;
* /
for ( total = 0; total < 4 && quads[total] != NULL; total++ );
return total;
}
*/
EQuad * EQuad::getQuad() const {
return quads[0];
/*
if ( quad1 ) return quad1;
if ( quad2 ) return quad2;
if ( quad3 ) return quad3;
if ( quad4 ) return quad4;
return NULL;
*/
}
EQuad * EQuad::getQuad( int x ) const {
return quads[x];
}
void EQuad::detach( EQuad * const who ){
// printf("Detach %p\n", who );
/*
if ( who == quad1 ) quad1 = NULL;
if ( who == quad2 ) quad2 = NULL;
if ( who == quad3 ) quad3 = NULL;
if ( who == quad4 ) quad4 = NULL;
*/
for ( int i = 0; i < numQuads(); i++ )
if ( who == quads[i] )
quads[i] = NULL;
EQuad * tmp[ 4 ];
int begin = 0;
for ( int i = 0; i < 4; i++ )
if ( quads[i] ){
tmp[begin++] = quads[i];
quads[i] = NULL;
}
for ( int q = 0; q < begin; q++ )
quads[q] = tmp[q];
}
int EQuad::calcSize(){
int total = sizeof(*this);
for ( int q = 0; q < numQuads(); q++ ){
total += quads[q]->calcSize();
}
return total;
}
bool EQuad::empty(){
if ( numQuads() == 0 ) return !full;
// if ( !quad1 && !quad2 && !quad3 && !quad4 ) return !full;
return false;
}
void EQuad::draw( const Graphics::Bitmap & work, int x, int y, Graphics::Color color, bool flipped ){
int mx = x + getMinX();
int my = y + getMinY();
// std::cout<<"getMinX: "<<getMinX()<<std::endl;
if ( flipped ){
if ( parent ){
mx = x + parent->getWidth() - (getMinX()+getWidth());
// mx = getMinX() - parent->getWidth()/2 + x;
// my = y + parent->getHeight()/2 - getMinY();
// my = y + getMinY();
// mx2 = mx - getWidth();
// mx2 = mx + getWidth();
/*
int i;
i = mx;
mx = mx2;
mx2 = i;
*/
}
}
int mx2 = mx + getWidth();
int my2 = my + getHeight();
for ( int i = 0; i < numQuads(); i++ )
quads[i]->draw( work, mx, my, color, flipped );
if ( full )
work.rectangle( mx, my, mx2, my2, color );
/*
if ( full )
work->rectangle( x+getMinX(), y+getMinY(), x+getMinX()+getWidth(), y+getMinY()+getHeight(), Bitmap::makeColor(255,64,32) );
else
work->rectangle( x+getMinX(), y+getMinY(), x+getMinX()+getWidth(), y+getMinY()+getHeight(), color );
*/
}
void EQuad::draw( const Graphics::Bitmap & work, int x, int y, Graphics::Color color, EQuad * who ){
bool cy = false;
for ( int i = 0; i < numQuads(); i++ )
if ( who == quads[i] )
cy = true;
int mx = x + getMinX();
int my = y + getMinY();
if ( cy )
who->draw( work, mx, my, color );
else {
for ( int i = 0; i < numQuads(); i++ )
quads[i]->draw( work, mx, my, color, who );
}
}
static bool boxCollide( int zx1, int zy1, int zx2, int zy2, int zx3, int zy3, int zx4, int zy4 ){
if ( zx1 < zx3 && zx1 < zx4 &&
zx2 < zx3 && zx2 < zx4 ) return false;
if ( zx1 > zx3 && zx1 > zx4 &&
zx2 > zx3 && zx2 > zx4 ) return false;
if ( zy1 < zy3 && zy1 < zy4 &&
zy2 < zy3 && zy2 < zy4 ) return false;
if ( zy1 > zy3 && zy1 > zy4 &&
zy2 > zy3 && zy2 > zy4 ) return false;
return true;
}
/* sure this could be simplified, but thats no fun :p */
int EQuad::getX1( bool xflipped ){
if ( parent ){
if ( xflipped ){
return parent->getWidth() - (getMinX() + getWidth());
} else {
return getMinX();
}
} else {
return getMinX();
}
}
int EQuad::getFullX1( bool xflipped ){
if ( parent ){
if ( xflipped ){
return parent->getFullX1( xflipped ) + parent->getWidth() - (getMinX() + getWidth());
} else {
return parent->getFullX1( xflipped ) + getMinX();
}
} else {
return getMinX();
}
}
int EQuad::getY1( bool yflipped ){
if ( parent ){
if ( yflipped ){
return parent->getHeight() - (getMinY() + getHeight());
} else {
return getMinY();
}
} else {
return getMinY();
}
}
int EQuad::getFullY1( bool yflipped ){
if ( parent ){
if ( yflipped ){
return parent->getFullY1( yflipped ) - (parent->getHeight() + getMinY() + getHeight());
} else {
return parent->getFullY1( yflipped ) + getMinY();
}
} else {
return getMinY();
}
}
void EQuad::gather( int mx, int my, int x1, int y1, int x2, int y2, vector< EQuad * > & collides, bool xflipped, bool yflipped ){
/*
int rx = mx + getX1();
int ry = my + getY1();
*/
int rx = mx;
int ry = my;
int rx2 = rx + getWidth();
int ry2 = ry + getHeight();
if ( ! boxCollide( rx, ry, rx2, ry2, x1, y1, x2, y2 ) ){
return;
}
for ( int i = 0; i < numQuads(); i++ ){
quads[i]->gather( rx + quads[i]->getX1( xflipped ), ry + quads[i]->getY1( yflipped ), x1, y1, x2, y2, collides, xflipped, yflipped );
}
if ( full ){
collides.push_back( this );
}
}
bool EQuad::collide( int mx, int my, int x1, int y1, int x2, int y2, EQuad ** last, bool xflipped, bool yflipped ){
/*
int rx = mx + getMinX();
int ry = my + getMinY();
if ( parent ){
if ( xflipped ){
rx = mx + parent->getWidth() - (getMinX()+getWidth());
}
if ( yflipped ){
ry = my + parent->getHeight() - (getMinY()+getHeight());
}
}
*/
int rx = mx + getX1( xflipped );
int ry = my + getY1( yflipped );
int rx2 = rx + getWidth();
int ry2 = ry + getHeight();
// rect( screen, rx, ry, rx2, ry2, makecol(255,255,0) );
bool cy = boxCollide( rx, ry, rx2, ry2, x1, y1, x2, y2 );
if ( !cy ) return false;
for ( int i = 0; i < numQuads(); i++ )
if ( quads[i]->collide( rx, ry, x1, y1, x2, y2, last ) )
return true;
if ( !full ) return false;
if ( cy ) *last = this;
return cy;
return false;
}
EQuad::~EQuad(){
/*
if ( quad1 ) delete quad1;
if ( quad2 ) delete quad2;
if ( quad3 ) delete quad3;
if ( quad4 ) delete quad4;
*/
for ( int q = 0; q < 4; q++ )
if ( quads[q] != NULL )
delete quads[q];
}
long long ECollide::totalTime = 0;
void ECollide::initECollide( const Graphics::Bitmap * who, Graphics::Color mask_pixel ){
/*
TimeDifference dif;
dif.startTime();
*/
head_quad = new EQuad( who, MIN_SIZE, mask_pixel, 0, 0, NULL );
last_collide = NULL;
/*
dif.endTime();
totalTime += dif.getTime();
cout<<"Total time taken: "<< totalTime / 1000 <<" ms" <<endl;
*/
}
ECollide::ECollide( const Graphics::Bitmap * who, Graphics::Color mask_pixel ){
initECollide( who, mask_pixel );
/*
head_quad = new EQuad( who, MIN_SIZE, mask_pixel, 0, 0, NULL );
last_collide = NULL;
*/
}
ECollide::ECollide( const Graphics::Bitmap & who, Graphics::Color mask_pixel ){
initECollide( &who, mask_pixel );
/*
head_quad = new EQuad( &who, MIN_SIZE, mask_pixel, 0, 0, NULL );
last_collide = NULL;
*/
}
#if 0
ECollide::ECollide( BITMAP * who, int mask_pixel ){
Bitmap tmp( who );
initECollide( &tmp, mask_pixel );
/*
head_quad = new EQuad( &tmp, MIN_SIZE, mask_pixel, 0, 0, NULL );
last_collide = NULL;
*/
}
#endif
ECollide::ECollide( int width, int height ){
last_collide = NULL;
head_quad = new EQuad( width, height, NULL );
}
ECollide::ECollide( const ECollide * e ){
initQuad( e->head_quad );
/*
last_collide = NULL;
head_quad = new EQuad( e->head_quad );
*/
}
ECollide::ECollide( const ECollide & e ){
initQuad( e.head_quad );
/*
last_collide = NULL;
head_quad = new EQuad( e.head_quad );
*/
}
ECollide::ECollide( EQuad * const head ){
initQuad( head );
/*
last_collide = NULL;
head_quad = new EQuad( head );
*/
}
void ECollide::initQuad( EQuad * const head ){
last_collide = NULL;
head_quad = new EQuad( head );
}
ECollide * ECollide::copy(){
return new ECollide( head_quad );
}
int ECollide::getMinHeight(){
return head_quad->getMinY();
}
int ECollide::getMaxHeight(){
return head_quad->getMinY() + head_quad->getHeight();
}
int ECollide::getMinWidth(){
return head_quad->getMinX();
}
int ECollide::getMaxWidth(){
return head_quad->getMinX() + head_quad->getWidth();
}
int ECollide::calcSize(){
int total = sizeof(*this);
if ( head_quad )
total += head_quad->calcSize();
return total;
}
bool ECollide::collide( int mx, int my, int x1, int y1, int x2, int y2, bool xflipped, bool yflipped ){
last_collide = NULL;
return head_quad->collide(mx,my,x1,y1,x2,y2, &last_collide, xflipped, yflipped );
}
bool ECollide::collide( int mx, int my, int x1, int y1, int x2, int y2, EQuad ** last, bool xflipped, bool yflipped ){
return head_quad->collide(mx,my,x1,y1,x2,y2, last, xflipped, yflipped );
}
void ECollide::gather( int mx, int my, int x1, int y1, int x2, int y2, vector< EQuad * > & e, bool xflipped, bool yflipped ){
return head_quad->gather( mx, my, x1, y1, x2, y2, e, xflipped, yflipped );
}
bool ECollide::Collision( int mx, int my, int ax, int ay, bool xflipped, bool ylfipped ){
return collide( mx, my, ax, ay, ax, ay );
}
bool ECollide::Collision( int mx, int my, int x1, int y1, int x2, int y2, bool xflipped, bool yflipped ){
return collide( mx, my, x1, y1, x2, y2 );
}
bool ECollide::Collision( ECollide * col, int mx, int my, int ax, int ay, bool my_xflipped, bool my_yflipped, bool him_xflipped, bool him_yflipped ){
if ( !col ) return false;
int x1 = mx > ax ? mx : ax;
int y1 = my > ay ? my : ay;
int x2 = (mx+getWidth()) < (ax+col->getWidth()) ? (mx+getWidth()) : (ax+col->getWidth());
int y2 = (my+getHeight()) < (ay+col->getHeight()) ? (my+getHeight()) : (ay+col->getHeight());
if ( x1 > x2 ) return false;
if ( y1 > y2 ) return false;
vector< EQuad * > collides1;
gather( mx, my, x1, y1, x2, y2, collides1, my_xflipped, my_yflipped );
vector< EQuad * > collides2;
col->gather( ax, ay, x1, y1, x2, y2, collides2, him_xflipped, him_yflipped );
for ( vector< EQuad * >::iterator it = collides1.begin(); it != collides1.end(); it++ ){
EQuad * e = *it;
int px1 = mx + e->getFullX1( my_xflipped );
int py1 = my + e->getFullY1( my_yflipped );
int px2 = px1 + e->getWidth();
int py2 = py1 + e->getHeight();
// Bitmap::Screen->rectangle( px1, py1, px2, py2, Bitmap::makeColor( 128, 128, 255 ) );
for ( vector< EQuad * >::iterator it2 = collides2.begin(); it2 != collides2.end(); it2++ ){
EQuad * e2 = *it2;
int zx1 = ax + e2->getFullX1( him_xflipped );
int zy1 = ay + e2->getFullY1( him_yflipped );
// printf( "Test %d,%d,%d,%d against %d,%d,%d,%d\n", px1, py1, px2, py2, zx1, zy1, zx1 + e2->getWidth(), zy1 + e2->getHeight() );
// Bitmap::Screen->rectangle( zx1, zy1, zx1 + e2->getWidth(), zy1 + e2->getHeight(), Bitmap::makeColor( Util::rnd( 255 ), 255, 255 ) );
// if ( e2->collide( zx1, zy1, px1, py1, px2, py2, &last_collide, him_xflipped, him_yflipped ) ){
if ( boxCollide( px1, py1, px2, py2, zx1, zy1, zx1 + e2->getWidth(), zy1 + e2->getHeight() ) ){
// Bitmap::Screen->rectangle( zx1, zy1, zx1 + e2->getWidth(), zy1 + e2->getHeight(), Bitmap::makeColor( 255, 255, 0 ) );
// cout << "Collided!" << endl;
// rest( 1000 );
return true;
}
}
}
// rest( 100 );
return false;
/*
return ( collide(mx,my,x1,y1,x2,y2,my_xflipped,my_yflipped) && col->collide(ax,ay,x1,y1,x2,y2,him_xflipped,him_yflipped) );
*/
}
/*
int ECollide::getWidth() const{
return head_quad->getWidth();
}
int ECollide::getHeight() const{
return head_quad->getHeight();
}
*/
void ECollide::draw( const Graphics::Bitmap & work, int x, int y, Graphics::Color color, bool flipped ){
head_quad->draw( work, x, y, color, flipped );
}
int ECollide::numQuads() const{
return head_quad->totalQuads();
}
void ECollide::draw( const Graphics::Bitmap & work, int x, int y, Graphics::Color color, EQuad * who ){
if ( head_quad == who )
head_quad->draw( work, x, y, color );
else head_quad->draw( work, x, y, color, who );
}
EQuad * ECollide::getLast(){
return last_collide;
}
ECollide::~ECollide(){
delete head_quad;
}

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