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#include <u.h>
#include <libc.h>
#include <thread.h>
#include <draw.h>
#include <mouse.h>
#include <keyboard.h>
#include <geometry.h>
#include "dat.h"
#include "fns.h"
static char rowtab[] = "abcdefghijklmnopq";
static int shiplentab[] = {
[Scarrier] 5,
[Sbattleship] 4,
[Scruiser] 3,
[Ssubmarine] 3,
[Sdestroyer] 2,
};
char *
cell2coords(Point2 cell)
{
static char s[3+1];
assert(cell.x >= 0 && cell.x < MAPW
&& cell.y >= 0 && cell.y < MAPH);
snprint(s, sizeof s, "%c%d", rowtab[(int)cell.y], (int)cell.x);
return s;
}
Point2
coords2cell(char *s)
{
Point2 cell;
char *p;
assert(s[0] >= 'a' && s[0] <= 'q');
cell = Pt2(0,0,1);
p = strchr(rowtab, s[0]);
cell.y = p-rowtab;
cell.x = strtol(s+1, nil, 10);
assert(cell.x >= 0 && cell.x < MAPW);
return cell;
}
int
gettile(Map *m, Point2 cell)
{
return m->map[(int)cell.x][(int)cell.y];
}
void
settile(Map *m, Point2 cell, int type)
{
m->map[(int)cell.x][(int)cell.y] = type;
}
void
settiles(Map *m, Point2 cell, int o, int ncells, int type)
{
Point2 sv;
switch(o){
case OH: sv = Vec2(1,0); break;
case OV: sv = Vec2(0,1); break;
default: sysfatal("settiles: wrong ship orientation");
}
while(ncells-- > 0){
settile(m, cell, type);
cell = addpt2(cell, sv);
}
}
int
shiplen(int stype)
{
assert(stype >= 0 && stype < NSHIPS);
return shiplentab[stype];
}
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