ddnet/src/game/mapres_col.cpp

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2007-05-22 15:03:32 +00:00
#include <baselib/system.h>
#include "../interface.h"
#include "mapres_col.h"
#include "mapres.h"
/*
Simple collision rutines!
*/
struct collision
{
int w, h;
unsigned char *data;
};
static collision col;
static int global_dividor;
int col_init(int dividor)
{
mapres_collision *c = (mapres_collision*)map_find_item(MAPRES_COLLISIONMAP,0);
if(!c)
{
dbg_msg("mapres_col", "failed!");
return 0;
}
col.w = c->width;
col.h = c->height;
global_dividor = dividor;
col.data = (unsigned char *)map_get_data(c->data_index);
return col.data ? 1 : 0;
}
int col_check_point(int x, int y)
{
int nx = x/global_dividor;
int ny = y/global_dividor;
if(nx < 0 || nx >= col.w || ny >= col.h)
return 1;
if(y < 0)
return 0; // up == sky == free
return col.data[ny*col.w+nx];
}