bmap.c bmap.h moved to repo. Added license notification

diff --git a/bmap.c b/bmap.c
new file mode 100755 (executable)
index 0000000..ccb4404
--- /dev/null
+++ b/bmap.c
@@ -0,0 +1,61 @@
+/*
+   Copyright (C) Prikol Software 1996-1997
+   Copyright (C) Aleksey Volynskov 1996-1997
+   Copyright (C) <ARembo@gmail.com> 2011
+
+   This file is part of the Doom2D:Rembo project.
+
+   Doom2D:Rembo is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation.
+
+   Doom2D:Rembo is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, see <http://www.gnu.org/licenses/> or
+   write to the Free Software Foundation, Inc.,
+   51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+*/
+
+#include "glob.h"
+#include "view.h"
+#include "bmap.h"
+
+byte fld_need_remap=1;
+
+byte bmap[FLDH/4][FLDW/4];
+
+void BM_mark(obj_t *o,byte f) {
+  int x,y;
+  int xs,ys,xe,ye;
+
+  if((xs=(o->x-o->r)>>5)<0) xs=0;
+  if((xe=(o->x+o->r)>>5)>=FLDW/4) xe=FLDW/4-1;
+  if((ys=(o->y-o->h)>>5)<0) ys=0;
+  if((ye=o->y>>5)>=FLDH/4) ye=FLDH/4-1;
+  for(y=ys;y<=ye;++y)
+       for(x=xs;x<=xe;++x)
+         bmap[y][x]|=f;
+}
+
+void BM_clear(byte f)
+{
+    int x,y;
+    for(x=0; x<FLDW/4; x++)
+        for (y=0; y<FLDH/4; y++)
+            bmap[y][x]&=~f;
+}
+
+void BM_remapfld(void)
+{
+    BM_clear(BM_WALL);
+    int x,y;
+    for(x=0; x<FLDW; x++)
+        for(y=0; y<FLDH; y++)
+            if (fld[y][x] == 1 || fld[y][x] == 2)
+                bmap[y/4][x/4]|=BM_WALL;
+    fld_need_remap = 0;
+}

diff --git a/bmap.h b/bmap.h
new file mode 100755 (executable)
index 0000000..aced0a1
--- /dev/null
+++ b/bmap.h
@@ -0,0 +1,35 @@
+/*
+   Copyright (C) Prikol Software 1996-1997
+   Copyright (C) Aleksey Volynskov 1996-1997
+   Copyright (C) <ARembo@gmail.com> 2011
+
+   This file is part of the Doom2D:Rembo project.
+
+   Doom2D:Rembo is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation.
+
+   Doom2D:Rembo is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, see <http://www.gnu.org/licenses/> or
+   write to the Free Software Foundation, Inc.,
+   51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+*/
+
+// Block map
+
+#define BM_WALL                1
+#define BM_PLR1                2
+#define BM_PLR2                4
+#define BM_MONSTER     8
+
+void BM_clear(byte f);
+void BM_mark(obj_t *o,byte f);
+void BM_remapfld(void);
+
+extern byte bmap[FLDH/4][FLDW/4];
+extern byte fld_need_remap;