From 21e27adcd50196e94141390f96c8d4a089ccde08 Mon Sep 17 00:00:00 2001
From: DeaDDooMER <deaddoomer@deadsoftware.ru>
Date: Tue, 21 Apr 2020 10:02:43 +0400
Subject: [PATCH] game: switch textures in more abstract way

---
 src/gl/render.c   | 12 ++++++++++++
 src/render.h      |  3 +++
 src/soft/render.c | 12 ++++++++++++
 src/switch.c      |  6 ++++--
 src/view.c        |  3 +--
 src/view.h        |  1 -
 6 files changed, 32 insertions(+), 5 deletions(-)

diff --git a/src/gl/render.c b/src/gl/render.c
index f68327a..28c5b86 100644
--- a/src/gl/render.c
+++ b/src/gl/render.c
@@ -162,6 +162,7 @@ static int max_wall_width;
 static int max_wall_height;
 static int max_textures;
 static image walp[256];
+static byte walswp[256];
 static byte walani[256];
 static image anip[ANIT][5];
 static byte anic[ANIT];
@@ -2107,3 +2108,14 @@ void R_loadsky (int sky) {
   R_gl_free_image(&horiz);
   horiz = R_gl_loadimage(s);
 }
+
+void R_switch_texture (int x, int y) {
+  assert(x >= 0 && x < FLDW);
+  assert(y >= 0 && y < FLDH);
+  fldb[y][x] = walswp[fldb[y][x]];
+}
+
+int R_get_swp (int n) {
+  assert(n >= 0 && n < 256);
+  return walswp[n];
+}
diff --git a/src/render.h b/src/render.h
index 0b6319c..f9a4cfb 100644
--- a/src/render.h
+++ b/src/render.h
@@ -14,8 +14,11 @@ void R_done (void);
 
 void R_set_videomode (int w, int h, int fullscreen);
 
+void R_switch_texture (int x, int y);
+
 void R_get_name (int n, char s[8]);
 int R_get_special_id (int n);
+int R_get_swp (int n);
 void R_begin_load (void);
 void R_load (char s[8], int f);
 void R_end_load (void);
diff --git a/src/soft/render.c b/src/soft/render.c
index 38c3ba7..e2cb9bf 100644
--- a/src/soft/render.c
+++ b/src/soft/render.c
@@ -72,6 +72,7 @@ static int w_o, w_x, w_y;
 static vgaimg *walp[256];
 static int walh[256];
 static byte walani[256];
+static byte walswp[256];
 static int anih[ANIT][5];
 static byte anic[ANIT];
 static int max_textures;
@@ -1628,3 +1629,14 @@ void R_done (void) {
   pitch = 0;
   Y_unset_videomode();
 }
+
+void R_switch_texture (int x, int y) {
+  assert(x >= 0 && x < FLDW);
+  assert(y >= 0 && y < FLDH);
+  fldb[y][x] = walswp[fldb[y][x]];
+}
+
+int R_get_swp (int n) {
+  assert(n >= 0 && n < 256);
+  return walswp[n];
+}
diff --git a/src/switch.c b/src/switch.c
index 5eebc2d..79f15c0 100644
--- a/src/switch.c
+++ b/src/switch.c
@@ -335,8 +335,10 @@ int SW_press (int x, int y, int r, int h, byte t, int o) {
 		  else ++pl2.secrets;
 		  sw[i].tm=1;sw[i].t=0;break;
       }
-      if(sw[i].tm)
-        {fldb[sw[i].y][sw[i].x]=walswp[fldb[sw[i].y][sw[i].x]];p=1;}
+      if (sw[i].tm != 0) {
+        R_switch_texture(sw[i].x, sw[i].y);
+        p = 1;
+      }
       if(sw[i].tm==1) sw[i].tm=0;
     }
   }
diff --git a/src/view.c b/src/view.c
index 08fde9f..043ac78 100644
--- a/src/view.c
+++ b/src/view.c
@@ -43,7 +43,6 @@
 
 int sky_type=1;
 dword walf[256];
-byte walswp[256];
 byte fldb[FLDH][FLDW];
 byte fldf[FLDH][FLDW];
 byte fld[FLDH][FLDW];
@@ -60,7 +59,7 @@ void W_savegame (FILE* h) {
     myfwrite32(walf[i], h);
   }
   for (i = 0; i < 256; i++) {
-    myfwrite8(walswp[i], h);
+    myfwrite8(R_get_swp(i), h);
   }
   myfwrite(fldb, FLDW*FLDH, 1, h);
   myfwrite(fld, FLDW*FLDH, 1, h);
diff --git a/src/view.h b/src/view.h
index 200bf02..d64512c 100644
--- a/src/view.h
+++ b/src/view.h
@@ -61,7 +61,6 @@ typedef struct {
 
 extern int sky_type;
 extern dword walf[256];
-extern byte walswp[256];
 extern byte fldb[FLDH][FLDW];
 extern byte fldf[FLDH][FLDW];
 extern byte fld[FLDH][FLDW];
-- 
2.29.2