games/mines: build a better ghost trap

This commit is contained in:
aiju 2018-03-10 14:40:34 +00:00
parent b7d31909f6
commit 7ca11774a1
3 changed files with 712 additions and 163 deletions

View file

@ -2,5 +2,7 @@ void LeftClick(Point);
void RightClick(Point);
void DrawButton(int);
void InitMineField(void);
void GhostInit(void);
void GhostMode(void);
void GhostReset(void);
void GhostReset(int);
int GhostCheck(Point);

View file

@ -2,9 +2,18 @@
#include <libc.h>
#include <draw.h>
#include <event.h>
#include <mp.h>
#include <cursor.h>
#include "dat.h"
#include "fns.h"
enum { TURBO = 0 };
static Cursor bunny = {
.set = {0x0,0x32,0x60,0x76,0x40,0x6e,0x3,0xec,0xf,0xfc,0x1f,0xf8,0x27,0x9c,0x3,0xc,0x33,0xcc,0x73,0xce,0x67,0x9e,0x7f,0xfe,0x7f,0xfe,0x7f,0xfe,0x6e,0x76},
.clr = {0xf8,0xcd,0x90,0x89,0xa3,0x91,0xcc,0x12,0x90,0x2,0x20,0x6,0x58,0x62,0x7c,0xf2,0x4c,0x33,0x8c,0x31,0x98,0x61,0x80,0x1,0x80,0x1,0x80,0x1,0x91,0x89}
};
enum {
MEmpty,
MMine,
@ -12,39 +21,71 @@ enum {
NState,
};
int ghostactive;
int ghostwait;
Point ghosttarget;
typedef struct Ghost Ghost;
typedef struct CList CList;
typedef struct CGroup CGroup;
struct Ghost {
QLock;
Rendez;
int active, wait;
int pid;
enum { NOTARG, LTARG, RTARG } targettype;
Point target;
int generation;
int nmines;
uchar *f;
int w, h;
int cursor;
Point moves[3];
int nmoves;
Point cpos;
};
struct CList {
int mines, pts;
int pt[8];
int next;
};
struct CGroup {
CList *cl;
int ncl;
mpint **cnt;
int max;
int cur;
};
static Ghost ghost;
static uchar ***
neighbours(uchar **f, uchar ***n)
neighbours(void)
{
int x, y, p;
uchar ***n;
if(n != nil){
for(x = 0; x < MaxX; x++)
for(y = 0; y < MaxY; y++)
memset(n[x][y], 0, NState);
}else{
n = calloc(sizeof(void*), MaxX);
for(x = 0; x < MaxX; x++){
n[x] = calloc(sizeof(void*), MaxY);
for(y = 0; y < MaxY; y++)
n[x][y] = calloc(sizeof(uchar), NState);
}
n = calloc(sizeof(void*), ghost.w);
for(x = 0; x < ghost.w; x++){
n[x] = calloc(sizeof(void*), ghost.h);
for(y = 0; y < ghost.h; y++)
n[x][y] = calloc(sizeof(uchar), NState);
}
for(y = 0; y < MaxY; y++)
for(x = 0; x < MaxX; x++){
p = f[x][y];
for(y = 0; y < ghost.h; y++)
for(x = 0; x < ghost.w; x++){
p = ghost.f[x + y * ghost.w];
if(x > 0 && y > 0) n[x-1][y-1][p]++;
if(y > 0) n[x][y-1][p]++;
if(x < MaxX-1 && y > 0) n[x+1][y-1][p]++;
if(x < ghost.w-1 && y > 0) n[x+1][y-1][p]++;
if(x > 0) n[x-1][y][p]++;
if(x < MaxX-1) n[x+1][y][p]++;
if(x > 0 && y < MaxY-1) n[x-1][y+1][p]++;
if(y < MaxY-1) n[x][y+1][p]++;
if(x < MaxX-1 && y < MaxY-1) n[x+1][y+1][p]++;
if(x < ghost.w-1) n[x+1][y][p]++;
if(x > 0 && y < ghost.h-1) n[x-1][y+1][p]++;
if(y < ghost.h-1) n[x][y+1][p]++;
if(x < ghost.w-1 && y < ghost.h-1) n[x+1][y+1][p]++;
}
return n;
}
@ -53,68 +94,62 @@ static void
freeneighbours(uchar ***n)
{
int x, y;
if(n == nil)
return;
for(x = 0; x < MaxX; x++){
for(y = 0; y < MaxY; y++)
for(x = 0; x < ghost.w; x++){
for(y = 0; y < ghost.h; y++)
free(n[x][y]);
free(n[x]);
}
free(n);
}
static int
allneighbours(uchar **f, int x, int y, int (*fun)(uchar **, int, int, void *), void *aux)
static void
printcl(CList *cl, int ncl)
{
int rc;
rc = 0;
if(x > 0 && y > 0) rc += fun(f, x-1, y-1, aux);
if(y > 0) rc += fun(f, x, y-1, aux);
if(x < MaxX-1 && y > 0) rc += fun(f, x+1, y-1, aux);
if(x > 0) rc += fun(f, x-1, y, aux);
if(x < MaxX-1) rc += fun(f, x+1, y, aux);
if(x > 0 && y < MaxY-1) rc += fun(f, x-1, y+1, aux);
if(y < MaxY-1) rc += fun(f, x, y+1, aux);
if(x < MaxX-1 && y < MaxY-1) rc += fun(f, x+1, y+1, aux);
return rc;
}
typedef struct {
int mines, pts;
Point pt[8];
} CList;
static int
addlist(uchar **f, int x, int y, void *aux)
{
CList *c;
int i, j;
c = aux;
if(f[x][y] == MUnknown)
c->pt[c->pts++] = (Point){x,y};
return 0;
for(i = 0; i < ncl; i++){
print("%d: ", cl[i].mines);
for(j = 0; j < cl[i].pts; j++)
print("%d ", cl[i].pt[j]);
print("\n");
}
print("--\n");
}
static void
mklists(uchar **f, CList **clp, int *nclp)
mklists(CList **clp, int *nclp)
{
CList *cl;
CList *c, *cl;
int ncl, x, y;
uchar ***nei;
cl = nil;
ncl = 0;
nei = neighbours(f, nil);
for(y = 0; y < MaxY; y++)
for(x = 0; x < MaxX; x++)
nei = neighbours();
for(y = 0; y < ghost.h; y++)
for(x = 0; x < ghost.w; x++)
if(MineField[x][y].Picture <= Empty8 && nei[x][y][MUnknown] > 0){
cl = realloc(cl, (ncl + 1) * sizeof(CList));
memset(&cl[ncl], 0, sizeof(CList));
cl[ncl].mines = MineField[x][y].Picture - nei[x][y][MMine];
allneighbours(f, x, y, addlist, &cl[ncl]);
ncl++;
c = &cl[ncl++];
memset(c, 0, sizeof(CList));
c->mines = MineField[x][y].Picture - nei[x][y][MMine];
if(x > 0 && y > 0 && ghost.f[(x-1)+(y-1)*ghost.w] == MUnknown)
c->pt[c->pts++] = (x-1)+(y-1)*ghost.w;
if(y > 0 && ghost.f[(x)+(y-1)*ghost.w] == MUnknown)
c->pt[c->pts++] = (x)+(y-1)*ghost.w;
if(x < ghost.w-1 && y > 0 && ghost.f[(x+1)+(y-1)*ghost.w] == MUnknown)
c->pt[c->pts++] = (x+1)+(y-1)*ghost.w;
if(x > 0 && ghost.f[(x-1)+(y)*ghost.w] == MUnknown)
c->pt[c->pts++] = (x-1)+(y)*ghost.w;
if(x < ghost.w-1 && ghost.f[(x+1)+(y)*ghost.w] == MUnknown)
c->pt[c->pts++] = (x+1)+(y)*ghost.w;
if(x > 0 && y < ghost.h-1 && ghost.f[(x-1)+(y+1)*ghost.w] == MUnknown)
c->pt[c->pts++] = (x-1)+(y+1)*ghost.w;
if(y < ghost.h-1 && ghost.f[(x)+(y+1)*ghost.w] == MUnknown)
c->pt[c->pts++] = (x)+(y+1)*ghost.w;
if(x < ghost.w-1 && y < ghost.h-1 && ghost.f[(x+1)+(y+1)*ghost.w] == MUnknown)
c->pt[c->pts++] = (x+1)+(y+1)*ghost.w;
}
freeneighbours(nei);
*clp = cl;
@ -122,56 +157,467 @@ mklists(uchar **f, CList **clp, int *nclp)
}
static int
ismember(CList *c, Point p)
ismember(CList *c, int p)
{
int i;
for(i = 0; i < c->pts; i++)
if(c->pt[i].x == p.x && c->pt[i].y == p.y)
if(c->pt[i] == p)
return 1;
return 0;
}
static void
merge(CList *cl, int *nclp)
splitknown(CList **clp, int *nclp, int i, int *lastq)
{
int i, j, k, l;
int j;
CList *cl;
int ncl;
cl = *clp;
ncl = *nclp;
cl = realloc(cl, sizeof(CList) * (ncl + cl[i].pts - 1));
memset(cl + ncl, 0, sizeof(CList) * (cl[i].pts - 1));
for(j = 1; j < cl[i].pts; j++){
cl[ncl - 1 + j].mines = cl[i].pts == cl[i].mines;
cl[ncl - 1 + j].pts = 1;
cl[ncl - 1 + j].pt[0] = cl[i].pt[j];
cl[*lastq].next = i;
*lastq = i;
}
cl[i].mines = cl[i].pts == cl[i].mines;
*nclp += cl[i].pts - 1;
cl[i].pts = 1;
*clp = cl;
}
start:
static int
merge(CList **clp, int *nclp, int start, int split)
{
int i, j, k, l, p;
CList *cl, *q, *r;
int qi, lastq;
int zero;
cl = *clp;
qi = -1;
lastq = -1;
zero = 0;
for(i = 0; i < *nclp; i++)
for(j = 0; j < *nclp; j++){
if(i == j) continue;
for(k = 0; k < cl[i].pts; k++)
if(!ismember(&cl[j], cl[i].pt[k]))
goto next;
for(k = l = 0; k < cl[j].pts; k++)
if(!ismember(&cl[i], cl[j].pt[k]))
cl[j].pt[l++] = cl[j].pt[k];
cl[j].pts = l;
cl[j].mines -= cl[i].mines;
if(l == 0){
memcpy(&cl[j], &cl[j+1], (*nclp - j - 1) * sizeof(CList));
(*nclp)--;
if(cl[i].pts == 0 || start >= 0 && start != i)
cl[i].next = -2;
else{
cl[i].next = -1;
if(lastq >= 0)
cl[lastq].next = i;
else
qi = i;
lastq = i;
}
while(qi >= 0){
q = &cl[qi];
for(i = 0; i < *nclp; i++){
r = &cl[i];
if(r == q || r->pts < q->pts) continue;
for(j = k = 0; j < q->pts; j++, k++){
p = q->pt[j];
if(r->pt[r->pts - 1] < p)
goto next;
while(r->pt[k] < p)
k++;
if(r->pt[k] > p)
goto next;
}
for(j = k = l = 0; j < q->pts; j++, k++){
p = q->pt[j];
while(r->pt[k] < p)
r->pt[l++] = r->pt[k++];
}
while(k < r->pts)
r->pt[l++] = r->pt[k++];
r->pts = l;
r->mines -= q->mines;
if(r->mines < 0 || r->mines > r->pts){
*clp = cl;
return -1;
}
if(r->pts == 0 && r->mines == 0)
zero++;
if(r->next == -2 && r->pts > 0){
r->next = -1;
cl[lastq].next = i;
lastq = i;
}
if(split && r->pts > 1 && (r->pts == r->mines || r->mines == 0)){
splitknown(&cl, nclp, i, &lastq);
q = &cl[qi];
}
goto start;
next: ;
}
}
qi = q->next;
q->next = -1;
}
if(zero != 0){
for(i = 0, j = 0; i < *nclp; i++)
if(cl[i].mines != 0 || cl[i].pts != 0)
cl[j++] = cl[i];
*nclp = j;
}
*clp = cl;
return 0;
}
static void
ghostfind(void)
countref(CList *cl, int ncl, uchar *ref)
{
int x, y, i, j, n;
uchar **field;
CList *cl;
int ncl;
Point pd;
int d, min;
int i, j;
memset(ref, 0, ghost.w * ghost.h);
for(i = 0; i < ncl; i++)
for(j = 0; j < cl[i].pts; j++)
ref[cl[i].pt[j]]++;
}
field = calloc(sizeof(uchar*), MaxX);
for(x = 0; x < MaxX; x++){
field[x] = calloc(sizeof(uchar), MaxY);
for(y = 0; y < MaxY; y++)
static int *
clgroup(CList *cl, int ncl, uchar *ref)
{
int i, j, k, og, ng;
int *g;
g = calloc(ncl, sizeof(int));
for(i = 0; i < ncl; i++)
g[i] = i;
start:
for(i = 0; i < ncl; i++)
for(j = 0; j < cl[i].pts; j++){
if(ref[cl[i].pt[j]] == 1) continue;
for(k = 0; k < ncl; k++)
if(g[i] != g[k] && ismember(&cl[k], cl[i].pt[j]))
break;
if(k == ncl) continue;
if(g[i] < g[k]){
og = g[i];
ng = g[k];
}else{
og = g[k];
ng = g[i];
}
for(k = 0; k < ncl; k++)
if(g[k] == og)
g[k] = ng;
goto start;
}
return g;
}
static int
groupmin(int *g, int ncl)
{
int i, j, og, ng;
u32int *bs;
bs = calloc(sizeof(u32int), ncl + 31 >> 5);
for(i = 0; i < ncl; i++)
bs[g[i]>>5] |= 1<<(g[i] & 31);
for(i = 0; i < ncl; i++){
for(j = 0; j < g[i]; j++)
if((bs[j>>5] & 1<<(j & 31)) == 0)
break;
if(j == g[i]) continue;
og = g[i];
ng = j;
for(j = 0; j < ncl; j++)
if(g[j] == og)
g[j] = ng;
bs[og>>5] &= ~(1<<(og & 31));
bs[ng>>5] |= 1<<(ng & 31);
}
og = 0;
for(i = 0; i < ncl; i++)
if(g[i] + 1 > og)
og = g[i] + 1;
free(bs);
return og;
}
static int
mkgroups(CList *cl, int ncl, uchar *ref, CGroup **gp)
{
CGroup *g, *p;
int i, j, k, ng;
int *gr;
gr = clgroup(cl, ncl, ref);
ng = groupmin(gr, ncl);
g = calloc(sizeof(CGroup), ng);
for(i = 0; i < ng; i++){
p = &g[i];
for(j = 0; j < ncl; j++)
if(gr[j] == i)
p->ncl++;
p->cl = calloc(sizeof(CList), p->ncl);
for(j = 0, k = 0; j < ncl; j++)
if(gr[j] == i)
p->cl[k++] = cl[j];
}
free(gr);
*gp = g;
return ng;
}
static void
freegroups(CGroup *g, int ng)
{
int i, j;
for(i = 0; i < ng; i++){
for(j = 0; j <= g[i].max; j++)
mpfree(g[i].cnt[j]);
free(g[i].cl);
free(g[i].cnt);
}
free(g);
}
static void
binom(mpint *acc, mpint *temp, int n, int k)
{
int i;
for(i = 0; i < k; i++){
itomp(n - i, temp);
mpmul(acc, temp, acc);
}
for(i = 2; i <= k; i++){
itomp(i, temp);
mpdiv(acc, temp, acc, nil);
}
}
static void countcomb(CList *cl, int ncl, mpint **);
static void
cltry(CList *cl, int ncl, int p, int v, mpint **cnt)
{
CList *cm;
int ncm;
cm = calloc(ncl + 1, sizeof(CList));
memcpy(cm, cl, ncl * sizeof(CList));
memset(&cm[ncl], 0, sizeof(CList));
cm[ncl].mines = v;
cm[ncl].pts = 1;
cm[ncl].pt[0] = p;
ncm = ncl + 1;
if(merge(&cm, &ncm, ncl, 1) < 0){
free(cm);
return;
}
countcomb(cm, ncm, cnt);
free(cm);
}
static void
countcomb(CList *cl, int ncl, mpint **cnt)
{
uchar *ref;
int p, i, j, nm;
mpint *rc, *c0;
ref = calloc(ghost.w, ghost.h);
countref(cl, ncl, ref);
for(i = 0; i < ncl; i++)
for(j = 0; j < cl[i].pts; j++){
p = cl[i].pt[j];
if(ref[p] > 1){
cltry(cl, ncl, p, 0, cnt);
cltry(cl, ncl, p, 1, cnt);
free(ref);
return;
}
}
rc = itomp(1, nil);
c0 = mpnew(0);
nm = 0;
for(i = 0; i < ncl; i++){
nm += cl[i].mines;
binom(rc, c0, cl[i].pts, cl[i].mines);
}
if(mpcmp(rc, mpzero) != 0)
if(cnt[nm] == nil)
cnt[nm] = rc;
else{
mpadd(cnt[nm], rc, cnt[nm]);
mpfree(rc);
}
else
mpfree(rc);
mpfree(c0);
free(ref);
}
static mpint *
totcomb(int tot, int nf, CGroup *g, int ng)
{
int i, j, s, carry;
mpint *r, *v, *t, *m;
s = 0;
for(i = 0; i < ng; i++){
for(j = 0; j <= g[i].max; j++)
if(g[i].cnt[j] != nil)
break;
if(j > g[i].max)
return mpnew(0);
g[i].cur = j;
s += j;
}
if(s > tot)
return mpnew(0);
r = mpnew(0);
v = mpnew(0);
t = mpnew(0);
do{
itomp(1, v);
s = 0;
for(i = 0; i < ng; i++){
m = g[i].cnt[g[i].cur];
mpmul(v, m, v);
s += g[i].cur;
}
if(s <= tot){
binom(v, t, nf, tot - s);
mpadd(r, v, r);
}
for(i = 0; i < ng; i++){
carry = 0;
do
if(++g[i].cur > g[i].max){
g[i].cur = 0;
carry = 1;
}
while(g[i].cnt[g[i].cur] == nil);
if(!carry) break;
}
}while(i < ng);
mpfree(v);
mpfree(t);
return r;
}
static int
freefields(uchar *ref)
{
int nf, p;
nf = 0;
for(p = 0; p < ghost.w * ghost.h; p++)
if(ref[p] == 0 && ghost.f[p] == MUnknown)
nf++;
return nf;
}
static int
basecounts(CGroup *g, int ng)
{
int i, j;
int allmax;
CGroup *p;
allmax = 0;
for(i = 0; i < ng; i++){
p = &g[i];
p->max = 0;
for(j = 0; j < p->ncl; j++)
p->max += p->cl[j].mines;
p->cnt = calloc(p->max + 1, sizeof(mpint *));
countcomb(p->cl, p->ncl, p->cnt);
if(p->max > allmax) allmax = p->max;
}
return allmax;
}
static void
fieldcombs(CList *cl, int ncl, int *xp, int *yp)
{
uchar *ref;
int i, k, p;
int nf, ng;
int allmax;
int ref1;
mpint *min, *v, **alt, **backup;
CList *l;
CGroup *g, *gp;
ref = calloc(ghost.w, ghost.h);
countref(cl, ncl, ref);
nf = freefields(ref);
ng = mkgroups(cl, ncl, ref, &g);
allmax = basecounts(g, ng);
alt = calloc(allmax + 1, sizeof(mpint *));
*xp = -1;
*yp = -1;
min = mpnew(0);
for(gp = g; gp < g + ng; gp++)
for(l = gp->cl; l < gp->cl + gp->ncl; l++){
ref1 = 0;
for(i = 0; i < l->pts; i++){
p = l->pt[i];
if(ref[p] == 0xff)
continue;
if(ref[p] == 1 && ref1++ != 0)
continue;
ref[p] = 0xff;
cltry(gp->cl, gp->ncl, p, 1, alt);
backup = gp->cnt;
gp->cnt = alt;
v = totcomb(ghost.nmines, nf, g, ng);
if(*xp < 0 || mpcmp(v, min) < 0){
mpassign(v, min);
*xp = p % ghost.w;
*yp = p / ghost.w;
}
gp->cnt = backup;
for(k = 0; k <= gp->max; k++)
mpfree(alt[k]);
memset(alt, 0, (gp->max + 1) * sizeof(mpint *));
mpfree(v);
}
}
if(nf > 0){
v = totcomb(ghost.nmines - 1, nf - 1, g, ng);
if(*xp < 0 || mpcmp(v, min) < 0){
i = nrand(nf);
for(p = 0; p < ghost.w * ghost.h; p++)
if(ref[p] == 0 && ghost.f[p] == MUnknown && i-- == 0)
break;
mpassign(v, min);
*xp = p % ghost.w;
*yp = p / ghost.w;
}
mpfree(v);
}
mpfree(min);
free(alt);
free(ref);
freegroups(g, ng);
}
static void
ghostprep(CList **clp, int *nclp)
{
int x, y;
ghost.w = MaxX;
ghost.h = MaxY;
ghost.nmines = MinesRemain;
ghost.f = calloc(ghost.w, ghost.h);
for(x = 0; x < ghost.w; x++){
for(y = 0; y < ghost.h; y++)
switch(MineField[x][y].Picture){
case Empty0:
case Empty1:
@ -182,102 +628,201 @@ ghostfind(void)
case Empty6:
case Empty7:
case Empty8:
field[x][y] = MEmpty;
ghost.f[x + y * ghost.w] = MEmpty;
break;
case Mark:
field[x][y] = MMine;
ghost.f[x + y * ghost.w] = MMine;
break;
default:
field[x][y] = MUnknown;
ghost.f[x + y * ghost.w] = MUnknown;
}
}
mklists(clp, nclp);
}
static int
ghostfind(CList *cl, int ncl, Point *targp)
{
int i, j, x, y;
Point p, pd;
int d, min;
Point targ;
int rt;
mklists(field, &cl, &ncl);
merge(cl, &ncl);
ghostactive = -1;
merge(&cl, &ncl, -1, 0);
min = 0;
rt = NOTARG;
targ = ghost.cpos;
for(i = 0; i < ncl; i++)
if(cl[i].mines == 0 || cl[i].mines == cl[i].pts)
for(j = 0; j < cl[i].pts; j++){
pd = subpt(addpt(addpt(mulpt(cl[i].pt[j], 16), Pt(12+8, 57+8)), Origin), LastMouse.xy);
p = Pt(cl[i].pt[j]%ghost.w, cl[i].pt[j]/ghost.w);
pd = subpt(addpt(addpt(mulpt(p, 16), Pt(12+8, 57+8)), Origin), targ);
d = pd.x * pd.x + pd.y * pd.y;
if(ghostactive < 0 || d < min){
ghostactive = 1 + (cl[i].mines == cl[i].pts);
ghosttarget = cl[i].pt[j];
if(rt == NOTARG || d < min){
rt = cl[i].mines == cl[i].pts ? RTARG : LTARG;
*targp = p;
min = d;
}
field[cl[i].pt[j].x][cl[i].pt[j].y] = cl[i].mines == cl[i].pts ? MMine : MEmpty;
ghost.f[cl[i].pt[j]] = cl[i].mines == cl[i].pts ? MMine : MEmpty;
}
if(ghostactive < 0){
n = 0;
for(x = 0; x < MaxX; x++)
for(y = 0; y < MaxY; y++)
if(field[x][y] == MUnknown)
n++;
if(n == 0) goto done;
n = lrand() % n;
for(x = 0; x < MaxX; x++)
for(y = 0; y < MaxY; y++)
if(field[x][y] == MUnknown && n-- == 0){
ghostactive = 1;
ghosttarget = Pt(x, y);
goto done;
}
done:;
if(rt == NOTARG){
fieldcombs(cl, ncl, &x, &y);
if(x >= 0){
rt = LTARG;
*targp = Pt(x, y);
}
}
for(x = 0; x < MaxX; x++)
free(field[x]);
free(field);
free(ghost.f);
free(cl);
return rt;
}
static void
killchild(void)
{
postnote(PNPROC, ghost.pid, "kill");
}
void
GhostInit(void)
{
CList *cl;
int ncl;
int rt;
Point p;
int rc;
int g;
ghost.Rendez.l = &ghost;
if(rc = rfork(RFPROC|RFMEM), rc == 0){
qlock(&ghost);
for(;;){
while(!ghost.active || ghost.targettype != NOTARG)
rsleep(&ghost);
g = ghost.generation;
ghostprep(&cl, &ncl);
qunlock(&ghost);
rt = ghostfind(cl, ncl, &p);
qlock(&ghost);
if(ghost.generation == g){
ghost.targettype = rt;
ghost.target = p;
}
}
}else{
ghost.pid = rc;
atexit(killchild);
}
}
int
GhostCheck(Point p)
{
int i;
for(i = 0; i < ghost.nmoves; i++)
if(eqpt(ghost.moves[i], p))
return 1;
return 0;
}
static void
move(Point p)
{
if(ghost.nmoves == nelem(ghost.moves))
memmove(ghost.moves + 1, ghost.moves, sizeof(ghost.moves) - sizeof(Point));
else
memmove(ghost.moves + 1, ghost.moves, ghost.nmoves++ * sizeof(Point));
ghost.moves[0] = p;
ghost.cpos = p;
emoveto(p);
}
static void
approach(Point p)
{
Point q;
double d;
q = subpt(p, ghost.cpos);
d = hypot(q.x, q.y);
if(d == 0)
return;
d = 2 / d * 2 * (1 + d / (400 + d));
move(addpt(ghost.cpos, Pt(ceil(q.x * d), ceil(q.y * d))));
}
void
GhostMode(void)
{
Point p, q;
double d;
Point p;
if(ghostwait > 0){
ghostwait--;
if(!ghost.cursor){
esetcursor(&bunny);
ghost.cursor = 1;
}
if(ghost.wait > 0){
if(Status == Oops)
move(addpt(ghost.cpos, Pt(nrand(20) - 10, nrand(20) - 10)));
ghost.wait--;
return;
}
if(Status != Game){
ghostactive = 0;
p = Pt(Origin.x + MaxX * 8 + 12, Origin.y + 28);
if(ptinrect(LastMouse.xy, insetrect(Rpt(p, p), -4))){
ghost.active = 0;
p = Pt(Origin.x + MaxX * 8 + 12, Origin.y + 28);
if(TURBO || ptinrect(ghost.cpos, insetrect(Rpt(p, p), -4))){
InitMineField();
qlock(&ghost);
ghost.active = 0;
ghost.targettype = NOTARG;
ghost.generation++;
qunlock(&ghost);
eresized(0);
}
goto move;
}else
approach(p);
return;
}
if(!ghostactive)
ghostfind();
if(ghostactive > 0){
p = addpt(addpt(mulpt(ghosttarget, 16), Pt(12+8, 57+8)), Origin);
if(ptinrect(LastMouse.xy, insetrect(Rpt(p, p), -4))){
switch(ghostactive){
case 1: LeftClick(ghosttarget); break;
case 2: RightClick(ghosttarget); break;
qlock(&ghost);
if(!ghost.active){
ghost.active = 1;
rwakeup(&ghost);
}
if(ghost.targettype != NOTARG){
p = addpt(addpt(mulpt(ghost.target, 16), Pt(12+8, 57+8)), Origin);
if(TURBO || ptinrect(ghost.cpos, insetrect(Rpt(p, p), -4))){
switch(ghost.targettype){
case LTARG: LeftClick(ghost.target); break;
case RTARG: RightClick(ghost.target); break;
}
if(Status != Game) ghostwait = 100;
ghost.targettype = NOTARG;
rwakeup(&ghost);
qunlock(&ghost);
if(Status != Game && !TURBO) ghost.wait = 100;
DrawButton(Status);
flushimage(display, 1);
ghostactive = 0;
return;
}else{
qunlock(&ghost);
approach(p);
}
move:
q = subpt(p, LastMouse.xy);
d = hypot(q.x, q.y);
d = 2 / d * (1 + d / (400 + d));
LastMouse.xy.x += ceil(q.x * d);
LastMouse.xy.y += ceil(q.y * d);
emoveto(LastMouse.xy);
}
}else
qunlock(&ghost);
}
void
GhostReset(void)
GhostReset(int deltarg)
{
ghostactive = 0;
ghostwait = 0;
if(ghost.cursor){
esetcursor(nil);
ghost.cursor = 0;
}
ghost.cpos = LastMouse.xy;
qlock(&ghost);
ghost.active = 0;
ghost.wait = 0;
ghost.targettype = NOTARG;
if(deltarg)
ghost.generation++;
qunlock(&ghost);
}

View file

@ -2,6 +2,7 @@
#include <libc.h>
#include <draw.h>
#include <event.h>
#include <mp.h>
#include "dat.h"
#include "fns.h"
@ -533,6 +534,7 @@ void main(int argc, char **argv) {
Event Event;
Point CurrentCell, Cell = Pt(-1, -1);
GhostInit();
Etimer = etimer(0, UseGhost ? 10 : 1000);
LastAction = nsec();
@ -541,7 +543,7 @@ void main(int argc, char **argv) {
if(Key == Etimer) {
if(nsec() - LastAction > 5000000000ULL && LastMouse.buttons == 0)
if(nsec() - LastAction > 1000000000ULL && LastMouse.buttons == 0)
GhostMode();
if(++Counter == (UseGhost ? 100 : 1)){
@ -556,11 +558,11 @@ void main(int argc, char **argv) {
if(Key == Emouse) {
if(!eqpt(LastMouse.xy, Event.mouse.xy) || LastMouse.buttons != Event.mouse.buttons){
if(!GhostCheck(Event.mouse.xy) || LastMouse.buttons != Event.mouse.buttons){
LastAction = nsec();
GhostReset();
LastMouse = Event.mouse;
GhostReset(Event.mouse.buttons != 0);
}
LastMouse = Event.mouse;
/* mouse over button? */
CurrentButton = FALSE;
@ -666,7 +668,7 @@ void main(int argc, char **argv) {
if(Key == Ekeyboard) {
LastAction = nsec();
GhostReset();
GhostReset(1);
switch(Event.kbdc) {
case 'n':