b2bbbaf585fc6b082e8350228a3cee7b2405acb0
1 /* Copyright (C) 1996-1997 Aleksey Volynskov
2 * Copyright (C) 2011 Rambo
3 * Copyright (C) 2020 SovietPony
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, version 3 of the License ONLY.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
40 static void *bulsnd
[2];
49 int Z_dec(int a
,int b
) {
50 if(abs(a
)<=b
) return 0;
56 void *Z_getsnd(char n
[6]) {
64 int Z_sound (void *s
, int v
) {
68 //S_play(s, -1, 1024, v);
69 //return F_getreslen(((int*)s)[-1])/605;
76 #define GAS_START (MN__LAST-MN_DEMON+5)
77 #define GAS_TOTAL (MN__LAST-MN_DEMON+16+10)
80 bulsnd
[0]=Z_getsnd("BUL1");
81 bulsnd
[1]=Z_getsnd("BUL2");
84 int Z_canstand(int x
,int y
,int r
) {
90 if(y
>=FLDH
|| y
<0) return 0;
94 if(fld
[y
][i
]==1 || fld
[y
][i
]==2 || fld
[y
][i
]==4)
96 else if(!((walf
[fldf
[y
][i
]]|walf
[fldb
[y
][i
]])&2)) return 1;
100 static int Z_hitceil(int x
,int y
,int r
,int h
) {
106 if(y
>=FLDH
|| y
<0) return 0;
108 if(x
>=FLDW
) x
=FLDW
-1;
110 if(fld
[y
][i
]==1 || fld
[y
][i
]==2)
112 else if(!((walf
[fldf
[y
][i
]]|walf
[fldb
[y
][i
]])&2)) return 1;
116 int Z_canfit(int x
,int y
,int r
,int h
) {
125 if(x
>=FLDW
) x
=FLDW
-1;
126 if(y
>=FLDH
) y
=FLDH
-1;
129 if(fld
[j
][i
]==1 || fld
[j
][i
]==2)
131 else if(!((walf
[fldf
[j
][i
]]|walf
[fldb
[j
][i
]])&2)) return 0;
135 static int Z_inlift(int x
,int y
,int r
,int h
) {
144 if(x
>=FLDW
) x
=FLDW
-1;
145 if(y
>=FLDH
) y
=FLDH
-1;
148 if(fld
[j
][i
]==9 || fld
[j
][i
]==10) return fld
[j
][i
]-8;
152 static int Z_isblocked(int x
,int y
,int r
,int h
,int xv
) {
163 if(x
>=FLDW
) x
=FLDW
-1;
164 if(y
>=FLDH
) y
=FLDH
-1;
167 if(fld
[j
][i
]==8) return 1;
171 int Z_istrapped(int x
,int y
,int r
,int h
) {
180 if(x
>=FLDW
) x
=FLDW
-1;
181 if(y
>=FLDH
) y
=FLDH
-1;
184 if(fld
[j
][i
]==255) return 1;
188 void Z_set_speed(obj_t
*o
,int s
) {
191 if(!(m
=max(abs(o
->xv
),abs(o
->yv
)))) m
=1;
192 o
->xv
=o
->xv
*s
/m
;o
->yv
=o
->yv
*s
/m
;
195 int Z_inwater(int x
,int y
,int r
,int h
) {
204 if(x
>=FLDW
) x
=FLDW
-1;
205 if(y
>=FLDH
) y
=FLDH
-1;
208 if(fld
[j
][i
]>=5 && fld
[j
][i
]<=7) {wfront
=fldf
[j
][i
];return 1;}
212 int Z_getacid(int x
,int y
,int r
,int h
) {
214 static byte tab
[4]={0,5,10,20};
223 if(x
>=FLDW
) x
=FLDW
-1;
224 if(y
>=FLDH
) y
=FLDH
-1;
227 if(fld
[j
][i
]==6) a
|=1;
228 else if(fld
[j
][i
]==7) a
|=2;
232 int Z_canbreathe(int x
,int y
,int r
,int h
) {
241 if(x
>=FLDW
) x
=FLDW
-1;
242 if(y
>=FLDH
) y
=FLDH
-1;
243 if(sx
>x
|| sy
>y
) return 1;
246 if(fld
[j
][i
]==0 || fld
[j
][i
]==3 || fld
[j
][i
]==9 || fld
[j
][i
]==10) return 1;
250 int Z_overlap(obj_t
*a
,obj_t
*b
) {
251 if(a
->x
- a
->r
> b
->x
+ b
->r
) return 0;
252 if(a
->x
+ a
->r
< b
->x
- b
->r
) return 0;
253 if(a
->y
<= b
->y
- b
->h
) return 0;
254 if(a
->y
- a
->h
>= b
->y
) return 0;
258 static void Z_kickobj(obj_t
*o
,int x
,int y
,int pwr
) {
261 dx
=o
->x
-x
;dy
=o
->y
-o
->h
/2-y
;
262 if(!(m
=max(abs(dx
),abs(dy
)))) m
=1;
263 o
->vx
+=(long)dx
*pwr
/m
;
264 o
->vy
+=(long)dy
*pwr
/m
;
267 int Z_cansee(int x
,int y
,int xd
,int yd
) {
278 if(!xd
&& !yd
) return 1;
279 if((xd
=abs(xd
)) > (yd
=abs(yd
))) d
=xd
; else d
=yd
;
282 if(x
<0 || x
>=FLDW
*8 || y
<0 || y
>=FLDH
*8) return 0;
283 if((bmap
[y
>>5][x
>>5]&BM_WALL
)) {
284 if(fld
[y
>>3][x
>>3]==1 || fld
[y
>>3][x
>>3]==2) return 0;
285 if((xe
+=(xd
<<3))>=d
) {
288 if((ye
+=(yd
<<3))>=d
) {
294 else{m
=x
&31;if(sx
>0) m
^=31; ++m
;}
296 else{s
=y
&31;if(sy
>0) s
^=31; ++s
;}
297 if((s
<m
&& s
!=0) || m
==0) m
=s
;
299 x
+=(xd
*m
+xe
)/d
*sx
;xe
=(xd
*m
+xe
)%d
;
300 y
+=(yd
*m
+ye
)/d
*sy
;ye
=(yd
*m
+ye
)%d
;
306 int Z_look(obj_t
*a
,obj_t
*b
,int d
) {
307 if(Z_sign(b
->x
-a
->x
)!=d
*2-1) return 0;
308 return Z_cansee(a
->x
,a
->y
-a
->h
/2,b
->x
,b
->y
-b
->h
/2);
311 #define wvel(v) if((xv=abs(v)+1)>5) v=Z_dec(v,xv/2-2)
313 int Z_moveobj(obj_t
*p
) {
314 static int x
,y
,xv
,yv
,r
,h
,lx
,ly
,st
;
318 switch(Z_inlift(x
=p
->x
,y
=p
->y
,r
=p
->r
,h
=p
->h
)) {
320 if(++p
->yv
>MAX_YV
) --p
->yv
;
323 if(--p
->yv
< -5) ++p
->yv
;
326 if(p
->yv
> 5) {--p
->yv
;break;}
329 if((inw
=Z_inwater(x
,y
,r
,h
))!=0) {
336 p
->vx
=Z_dec(p
->vx
,1);
337 p
->vy
=Z_dec(p
->vy
,1);
338 xv
=p
->xv
+p
->vx
;yv
=p
->yv
+p
->vy
;
340 if(x
<-100 || x
>=FLDW
*8+100 || y
<-100 || y
>=FLDH
*8+100)
344 x
+=(abs(xv
)<=7)?xv
:((xv
>0)?7:-7);
345 if(z_mon
) if(Z_isblocked(x
,y
,r
,h
,xv
)) st
|=Z_BLOCK
;
346 if(!Z_canfit(x
,y
,r
,h
)) {
348 else if(xv
<0) x
=((lx
-r
)&0xFFF8)+r
;
349 else x
=((lx
+r
)&0xFFF8)-r
+7;
350 xv
=p
->xv
=p
->vx
=0;st
|=Z_HITWALL
;
352 xv
-=(abs(xv
)<=7)?xv
:((xv
>0)?7:-7);
355 y
+=(abs(yv
)<=7)?yv
:((yv
>0)?7:-7);
357 if(yv
<0 && Z_hitceil(x
,y
,r
,h
)) {
358 y
=((ly
-h
+1)&0xFFF8)+h
-1;
359 yv
=p
->vy
=1;p
->yv
=0;st
|=Z_HITCEIL
;
361 if(yv
>0 && Z_canstand(x
,y
,r
)) {
363 yv
=p
->yv
=p
->vy
=0;st
|=Z_HITLAND
;
365 yv
-=(abs(yv
)<=7)?yv
:((yv
>0)?7:-7);
368 if(Z_inwater(x
,y
,r
,h
)) {
370 if(!inw
) st
|=Z_HITWATER
;
371 }else if(inw
) st
|=Z_HITAIR
;
375 void Z_splash (obj_t
*p
, int n
) {
376 Z_sound(bulsnd
[0], 128);
377 DOT_water(p
->x
, p
->y
-p
->h
/ 2, p
->xv
+ p
->vx
, p
->yv
+ p
->vy
, n
, R_get_special_id(wfront
) - 1);
380 void Z_calc_time(dword t
,word
*h
,word
*m
,word
*s
)
393 #define SWAP_VAR(a, b) do { unsigned char t = a; a = b; b = t; } while(0)
395 static int16_t short2swap (int16_t x
) {
401 SWAP_VAR(y
.a
[0], y
.a
[1]);
405 static int32_t int2swap (int32_t x
) {
411 SWAP_VAR(y
.a
[0], y
.a
[3]);
412 SWAP_VAR(y
.a
[1], y
.a
[2]);
418 int16_t short2host (int16_t x
) {
420 return short2swap(x
);
426 int32_t int2host (int32_t x
) {