slime spill is now predictable when multiple colors hit the same cell at once

attack.cpp

@@ -226,6 +226,27 @@ EX void killIvy(cell *c, eMonster who) {
       killIvy(c->move(i), who), kills[moIvyDead]++;
   }
 
+struct spillinfo {
+  eWall orig;
+  int spill_a, spill_b;
+  spillinfo() { spill_a = spill_b = 0; }
+  };
+
+map<cell*, spillinfo> spillinfos;
+
+EX void reset_spill() {
+  spillinfos.clear();
+  }
+
+EX void record_spillinfo(cell *c, eWall t) {
+  if(!isAlchAny(t)) return;
+  auto& si = spillinfos[c];
+  if(si.spill_a == 0 && si.spill_b == 0) si.orig = c->wall;
+  if(si.spill_a == 0 && si.spill_b == 0) si.orig = c->wall;
+  if(t == waFloorA) si.spill_a++;
+  if(t == waFloorB) si.spill_b++;
+  }
+
 EX void prespill(cell* c, eWall t, int rad, cell *from) {
   if(againstWind(c, from)) return;
   changes.ccell(c);
@@ -280,8 +301,10 @@ EX void prespill(cell* c, eWall t, int rad, cell *from) {
     c->wall == waCamelotMoat || c->wall == waSea || c->wall == waCTree ||
     c->wall == waRubble || c->wall == waGargoyleFloor || c->wall == waGargoyle ||
     c->wall == waRose || c->wall == waPetrified || c->wall == waPetrifiedBridge || c->wall == waRuinWall ||
-    among(c->wall, waDeepWater, waShallow))
+    among(c->wall, waDeepWater, waShallow)) {
+      record_spillinfo(c, t);
       t = waTemporary;
+      }
 
   if(c->wall == waSulphur) {
     // remove the center as it would not look good
@@ -296,6 +319,7 @@ EX void prespill(cell* c, eWall t, int rad, cell *from) {
     
   destroyHalfvine(c);
   if(c->wall == waTerraWarrior) kills[waTerraWarrior]++;
+  record_spillinfo(c, t);
   c->wall = t;
   // destroy items...
   c->item = itNone;
@@ -324,7 +348,18 @@ EX void spillfix(cell* c, eWall t, int rad) {
   }
 
 EX void spill(cell* c, eWall t, int rad) {
-  prespill(c,t,rad, c); spillfix(c,t,rad);
+  if(isAlchAny(c) && (spillinfos[c].spill_a || spillinfos[c].spill_b) && isAlchAny(spillinfos[c].orig))
+    t = spillinfos[c].orig;
+  prespill(c,t,rad, c);
+  spillfix(c,t,rad);
+  for(auto si: spillinfos) {
+    if(si.second.spill_a && si.second.spill_b)
+    si.first->wall =
+      si.second.spill_a > si.second.spill_b ? waFloorA :
+      si.second.spill_b > si.second.spill_a ? waFloorB :
+      isAlchAny(si.second.orig) ? si.second.orig :
+      waNone;
+    }
   }
 
 EX void degradeDemons() {

environment.cpp

@@ -809,6 +809,7 @@ EX void findWormIvy(cell *c) {
   }
   
 EX void monstersTurn() {
+  reset_spill();
   checkSwitch();
   mirror::breakAll();
   DEBB(DF_TURN, ("bfs"));

orbs.cpp

@@ -218,12 +218,12 @@ EX void reduceOrbPowers() {
   items[itWarning] = 0;
   }
 
+eWall orig_wall;
+
 EX void flashAlchemist(cell *c) {
-  if(isAlch(c)) {
-    if(isAlch(cwt.at))
-      c->wall = cwt.at->wall;
-    else
-      c->wall = eWall(c->wall ^ waFloorB ^ waFloorA);
+  if(isAlch(c) && isAlch(orig_wall)) {
+    record_spillinfo(c, orig_wall);
+    c->wall = orig_wall;
     }
   }
 
@@ -292,6 +292,7 @@ EX void flashCell(cell *c, eMonster killer, flagtype flags) {
 
 EX void activateFlashFrom(cell *cf, eMonster who, flagtype flags) {
   drawFlash(cf);
+  orig_wall = cwt.at->wall;
   playSound(cf, "storm");
   for(int i=0; i<isize(dcal); i++) {
     cell *c = dcal[i];

pcmove.cpp

@@ -242,6 +242,7 @@ EX bool movepcto(int d, int subdir IS(1), bool checkonly IS(false)) {
   }
 
 bool pcmove::movepcto() {  
+  reset_spill();
   if(dual::state == 1) return dual::movepc(d, subdir, checkonly);
   if(d >= 0 && !checkonly && subdir != 1 && subdir != -1) printf("subdir = %d\n", subdir);
   mip.t = NULL;