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/*
* Copyright (c) 1997 - 2001 Hansjrg Malthaner
*
* This file is part of the Simutrans project under the artistic licence.
* (see licence.txt)
*
* Author: V. Meyer
*/
#include <string.h>
#include "../simtypes.h"
#include "../simdebug.h"
#include "../boden/grund.h"
#include "marker.h"
void marker_t::init(int welt_groesse_x,int welt_groesse_y)
{
cached_groesse = welt_groesse_x;
bits_groesse = (welt_groesse_x*welt_groesse_y + bit_mask) / (bit_unit);
if(bits) {
delete [] bits;
}
if(bits_groesse) {
bits = new unsigned char[bits_groesse];
}
else {
bits = NULL;
}
unmarkiere_alle();
}
marker_t::~marker_t()
{
delete [] bits;
}
void marker_t::unmarkiere_alle()
{
if(bits) {
memset(bits, 0, bits_groesse);
}
more.clear();
}
void marker_t::markiere(const grund_t *gr)
{
if(gr != NULL) {
if(gr->gib_typ()<=grund_t::fundament) {
// these types (boden, wasser, fundament) are always at ground level
const int bit = gr->gib_pos().y*cached_groesse+gr->gib_pos().x;
bits[bit/bit_unit] |= 1 << (bit & bit_mask);
}
else if(!more.contains(gr)) {
more.insert(gr);
}
}
}
void marker_t::unmarkiere(const grund_t *gr)
{
if(gr != NULL) {
if(gr->gib_typ()<=grund_t::fundament) {
// these types (boden, wasser, fundament) are always at ground level
const int bit = gr->gib_pos().y*cached_groesse+gr->gib_pos().x;
bits[bit/bit_unit] &= ~(1 << (bit & bit_mask));
}
else {
more.remove(gr);
}
}
}
bool marker_t::ist_markiert(const grund_t *gr) const
{
if(gr==NULL) {
return false;
}
if(gr->gib_typ()<=grund_t::fundament) {
// these types (boden, wasser, fundament) are always at ground level
const int bit = gr->gib_pos().y*cached_groesse+gr->gib_pos().x;
return (bits[bit/bit_unit] & (1 << (bit & bit_mask))) != 0;
}
else {
return more.contains(gr);
}
}
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