From 3d2215798aaab87db7ae5265d21e359864e1f1c2 Mon Sep 17 00:00:00 2001
From: DeaDDooMER <deaddoomer@deadsoftware.ru>
Date: Sat, 14 Mar 2020 21:43:05 +0300
Subject: [PATCH] fix texture drawing

---
 src/miscc.c  |  2 +-
 src/render.c | 19 ++++++++++---------
 src/view.c   |  5 ++---
 3 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/src/miscc.c b/src/miscc.c
index 2ece443..90cfecb 100644
--- a/src/miscc.c
+++ b/src/miscc.c
@@ -392,7 +392,7 @@ int Z_moveobj(obj_t *p) {
 
 void Z_splash (obj_t *p, int n) {
   Z_sound(bulsnd[0], 128);
-  DOT_water(p->x, p->y-p->h / 2, p->xv + p->vx, p->yv + p->vy, n, R_get_special_id(wfront));
+  DOT_water(p->x, p->y-p->h / 2, p->xv + p->vx, p->yv + p->vy, n, R_get_special_id(wfront) - 1);
 }
 
 void Z_calc_time(dword t,word *h,word *m,word *s)
diff --git a/src/render.c b/src/render.c
index 55ec317..254b87e 100644
--- a/src/render.c
+++ b/src/render.c
@@ -304,9 +304,10 @@ static void Z_drawfld (byte *fld, int bg) {
             int sx = x * CELW - w_x + WD / 2;
             int sy = y * CELH - w_y + HT / 2 + 1 + w_o;
             int id = *p;
-            if (id != 0) {
+            if (id) {
+              //intptr_t spc = (intptr_t) walp[id];
               int spc = R_get_special_id(id);
-              if (spc <= 3) {
+              if (spc >= 0 && spc <= 3) {
                 if (!bg) {
                   byte *cmap = clrmap + (spc + 7) * 256;
                   V_remap_rect(sx, sy, CELW, CELH, cmap);
@@ -1263,23 +1264,23 @@ static short getani (char n[8]) {
 
 int R_get_special_id (int n) {
   assert(n >= 0 && n < 256);
-  intptr_t x = (intptr_t)walp[n] - 1;
-  return x > 0 && x <= 3 ? x : 0;
+  intptr_t x = (intptr_t)walp[n];
+  return x >= 0 && x <= 3 ? x : -1;
 }
 
 void R_begin_load (void) {
   int i;
-  for (i = 0; i < max_textures; i++) {
-//    if (walp[i] != NULL && walh[i] >= 0) {
-//      M_unlock(walp[i]);
-//    }
+  for (i = 0; i < 256; i++) {
+    if (walp[i] != NULL && walh[i] >= 0) {
+      M_unlock(walp[i]);
+    }
     walh[i] = -1;
     walp[i] = NULL;
     walswp[i] = i;
     walani[i] = 0;
   }
   memset(anic, 0, sizeof(anic));
-  max_textures = 0;
+  max_textures = 1;
 }
 
 void R_load (char s[8], int f) {
diff --git a/src/view.c b/src/view.c
index 73953d7..4e1fce7 100644
--- a/src/view.c
+++ b/src/view.c
@@ -86,14 +86,14 @@ void W_loadgame (FILE* h) {
     myfread(s[i], 8, 1, h);
   }
   R_begin_load();
-  R_load("", 0); // empty
   i = myfread32(h); // ignore
   for (i = 1; i < 256; i++) {
     walf[i] = myfread32(h);
     R_load(s[i], walf[i] & 1);
   }
   for (i = 0; i < 256; i++) {
-    walswp[i] = myfread8(h);
+    //walswp[i] = myfread8(h);
+    (void)myfread8(h); // useless in new code
   }
   myfread(fldb, FLDW*FLDH, 1, h);
   myfread(fld, FLDW*FLDH, 1, h);
@@ -140,7 +140,6 @@ int W_load (FILE *h) {
   switch (blk.t) {
   case MB_WALLNAMES:
     R_begin_load();
-    R_load("", 0); // empty
     for (i = 1; i < 256 && blk.sz > 0; i++, blk.sz -= 9) {
       myfread(s, 8, 1, h);
       t = myfread8(h);
-- 
2.29.2