ref: 4983adfa2cd403eda22d862917c2ff5ed35b48b3
dir: /sys/src/games/memo.c/
/* Federico Benavento <[email protected]> */
#include <u.h>
#include <libc.h>
#include <draw.h>
#include <event.h>
enum {
Facesize = 48
};
void memoinit(void);
void redraw(void);
void eresized(int);
void resize(int i);
void afaces(void);
void allocblocks(void);
Image *openface(char *path);
Image *face[18];
char buf[100];
ushort winflag, level;
Image *back;
Image *fore;
enum
{
Eninit,
Eshow,
Ehide,
Edisc,
};
struct
{
Image *face;
Rectangle r;
int flag;
}block[36];
char *buttons[] =
{
"restart",
"easy",
"hard",
"exit",
0
};
Menu menu =
{
buttons
};
void
main(int argc, char *argv[])
{
Mouse m;
int i, j;
ushort ran, score, attempt, prev, br[2];
Image *c[2];
char *fmt;
level = 16;
fmt = "win in %d attempts!";
ARGBEGIN{
default:
goto Usage;
case 'h':
level=36;
break;
}ARGEND
if(argc){
Usage:
fprint(2, "usage: %s [-h]\n", argv0);
exits("usage");
}
if(initdraw(0,0,"memo") < 0)
sysfatal("initdraw failed: %r");
srand(time(0));
memoinit();
einit(Emouse);
Start:
afaces();
winflag=0;
prev=level+1;
score=attempt=0;
for(i=0;i!=level;i++)
block[i].flag = Eninit;
for(i=0;i!=level/2;i++){
for(j=0;j!=2;){
ran = rand()%level;
if(block[ran].flag == Eninit){
block[ran].face = face[i];
block[ran].flag = Eshow;
j++;
}
}
}
eresized(0);
for(;;m=emouse())
if(m.buttons)
break;
for(i=0;i!=level;i++)
block[i].flag = Ehide;
redraw();
j = 0;
for(;; m=emouse()){
switch(m.buttons){
case 1:
while(m.buttons){
for(i=0;i!=level;i++){
if(i!=prev && ptinrect(m.xy,block[i].r)){
if(block[i].flag==Ehide && j<2){
block[i].flag = Eshow;
draw(screen, block[i].r, block[i].face, nil, ZP);
c[j] = block[i].face;
br[j] = prev = i;
j++;
}
break;
}
}
m=emouse();
}
break;
case 4:
switch(emenuhit(3, &m, &menu)) {
case 0: /* restart */
goto Start;
break;
case 1:
level=16;
goto Start;
break;
case 2:
level=36;
goto Start;
break;
case 3:
exits(0);
break;
}
}
if(j==2){
attempt++;
prev = level+1;
j = 0;
if(c[0] == c[1]){
score++;
block[br[0]].flag = Edisc;
block[br[1]].flag = Edisc;
} else{
block[br[0]].flag = Ehide;
block[br[1]].flag = Ehide;
}
redraw();
continue;
}
if(score == level/2){
winflag = 1;
sprint(buf, fmt, attempt);
redraw();
for(;;m=emouse())
if(m.buttons&1 || m.buttons&4)
break;
goto Start;
}
}
}
void
memoinit(void)
{
back = allocimagemix(display, DPalebluegreen,DWhite);
fore = allocimagemix(display, 0x00DDDDFF, 0x00DDDDFF);
}
void
eresized(int new)
{
double sq;
Point p;
if(new && getwindow(display, Refnone) < 0){
fprint(2, "can't reattach to window");
exits("resized");
}
sq = sqrt(level);
p = Pt(Dx(screen->r)+8, Dy(screen->r)+8);
if(!new || !eqpt(p, Pt(Facesize*sq+sq*4+17, Facesize*sq+sq*4+17)))
resize(Facesize*sq+sq*4+17);
allocblocks();
draw(screen, screen->r, back, nil, ZP);
redraw();
}
void
redraw(void)
{
int i;
Rectangle r;
Point p;
if(winflag == 1){
p = Pt(Dx(screen->r)/8, Dy(screen->r)/4);
r = screen->r;
r.min = addpt(r.min, p);
r.max = subpt(r.max, p);
draw(screen, r, fore, nil, ZP);
p=addpt(r.min, Pt(5,5));
string(screen,p,display->black,ZP,font,buf);
return;
}
for(i=0;i!=level;i++){
r = block[i].r;
switch(block[i].flag){
case Eshow:
draw(screen, r,block[i].face,nil,ZP);
break;
case Edisc:
draw(screen, r, back, nil, ZP);
break;
case Ehide:
draw(screen, r, fore, nil, ZP);
break;
default:
fprint(2, "something went wrong!");
exits("wrong");
break;
}
}
}
char *facepaths[] = {
/* logos */
"/lib/face/48x48x4/g/glenda.1",
"/lib/face/48x48x2/p/pjw+9ball.2",
/* /sys/doc/9.ms authors */
"/lib/face/48x48x2/k/ken.1",
"/lib/face/48x48x4/b/bobf.1",
"/lib/face/48x48x4/p/philw.1",
"/lib/face/48x48x4/p/presotto.1",
"/lib/face/48x48x4/r/rob.1",
"/lib/face/48x48x4/s/sean.1",
/* additional authors and luminaries for harder levels */
"/lib/face/48x48x4/b/bwk.1",
"/lib/face/48x48x4/c/cyoung.1",
"/lib/face/48x48x4/d/dmr.1",
"/lib/face/48x48x4/d/doug.1",
"/lib/face/48x48x4/h/howard.1",
"/lib/face/48x48x4/j/jmk.1",
"/lib/face/48x48x4/s/sape.1",
"/lib/face/48x48x4/s/seanq.1",
"/lib/face/48x48x4/t/td.1",
"/lib/face/48x48x8/l/lucent.1",
};
void
afaces(void)
{
int i;
for(i=0; i<18; i++)
face[i] = openface(facepaths[i]);
}
void
resize(int i)
{
int fd;
fd = open("/dev/wctl", OWRITE);
if(fd >= 0){
fprint(fd, "resize -dx %d -dy %d", i, i);
close(fd);
}
}
Image *
openimage(char *path)
{
Image *i;
int fd;
fd = open(path, OREAD);
if(fd < 0)
sysfatal("open %s: %r", path);
i = readimage(display, fd, 0);
if(i == nil)
sysfatal("readimage %s: %r", path);
close(fd);
return i;
}
void
allocblocks(void)
{
Rectangle r, b;
ushort i, x, y, sq;
sq = sqrt(level);
r = insetrect(screen->r, 5);
r.max.x = r.min.x+Facesize*sq+sq*4-1;
r.max.y = r.min.y+Facesize*sq+sq*4-1;
b.max.y = r.min.y;
for(i=level-1, y=0; y!=sq; y++){
b.min.y = b.max.y;
b.max.y = r.min.y+Dy(r)*(y+1)/sq;
b.max.x = r.min.x;
for(x=0; x!=sq; x++, i--){
b.min.x = b.max.x;
b.max.x = r.min.x+Dx(r)*(x+1)/sq;
block[i].r = insetrect(b, 2 );
}
}
}
Image*
readbit(int fd, ulong chan, char *path)
{
char buf[4096], hx[4], *p;
uchar data[Facesize*Facesize]; /* more than enough */
int nhx, i, n, ndata, nbit;
Image *img;
n = readn(fd, buf, sizeof buf);
if(n <= 0)
return nil;
if(n >= sizeof buf)
n = sizeof(buf)-1;
buf[n] = '\0';
n = 0;
nhx = 0;
nbit = chantodepth(chan);
ndata = (Facesize*Facesize*nbit)/8;
p = buf;
while(n < ndata) {
p = strpbrk(p+1, "0123456789abcdefABCDEF");
if(p == nil)
break;
if(p[0] == '0' && p[1] == 'x')
continue;
hx[nhx] = *p;
if(++nhx == 2) {
hx[nhx] = 0;
i = strtoul(hx, 0, 16);
data[n++] = ~i;
nhx = 0;
}
}
if(n < ndata)
sysfatal("short face %s", path);
img = allocimage(display, Rect(0,0,Facesize,Facesize), chan, 0, 0);
if(img == nil)
return nil;
loadimage(img, img->r, data, ndata);
return img;
}
Image*
openface(char *path)
{
char *p;
int fd, n;
p = strstr(path, "48x48x");
if(p == nil)
return openimage(path);
n = atoi(p+6);
if(n < 4){
if((fd = open(path, OREAD)) < 0)
sysfatal("open %s: %r", path);
return readbit(fd, n==1 ? GREY1 : GREY2, path);
}
return openimage(path);
}