From 42dc19bb394d7ec44542295fe76e51be7b01c464 Mon Sep 17 00:00:00 2001
From: XProger <xproger@list.ru>
Date: Wed, 10 May 2017 02:34:59 +0300
Subject: [PATCH] #14 path blocking by doors

---
 src/cache.h   | 3 +++
 src/format.h  | 2 ++
 src/trigger.h | 9 +++++++++
 3 files changed, 14 insertions(+)

diff --git a/src/cache.h b/src/cache.h
index 0d0aa89..8cc94d0 100644
--- a/src/cache.h
+++ b/src/cache.h
@@ -859,6 +859,9 @@ struct ZoneCache {
                 // has same zone
                 if (zones[index] != zone)
                     continue;
+                // check blocking (doors)
+                if (level->boxes[index].overlap.block)
+                    continue;
                 // check for height difference
                 int d = level->boxes[index].floor - b.floor;
                 if (d > ascend || d < descend)
diff --git a/src/format.h b/src/format.h
index 39ff428..b10efcc 100644
--- a/src/format.h
+++ b/src/format.h
@@ -840,6 +840,7 @@ namespace TR {
             int floor, ceiling;
             int slantX, slantZ;
             int floorIndex;
+            int boxIndex;
             int kill;
             int trigCmdCount;
             Trigger trigger;
@@ -1617,6 +1618,7 @@ namespace TR {
             info.roomBelow    = s.roomBelow;
             info.roomAbove    = s.roomAbove;
             info.floorIndex   = s.floorIndex;
+            info.boxIndex     = s.boxIndex;
             info.kill         = 0;
             info.trigger      = Trigger::ACTIVATE;
             info.trigCmdCount = 0;
diff --git a/src/trigger.h b/src/trigger.h
index 984958f..112fdf0 100644
--- a/src/trigger.h
+++ b/src/trigger.h
@@ -215,6 +215,7 @@ struct MovingBlock : Trigger {
 
 struct Door : Trigger {
     int8 *floor[2], orig[2];
+    uint16 box;
 
     Door(IGame *game, int entity) : Trigger(game, entity, true) {
         TR::Entity &e = getEntity();
@@ -222,6 +223,8 @@ struct Door : Trigger {
         vec3 p = pos - getDir() * 1024.0f;
 
         level->getFloorInfo(e.room, (int)p.x, (int)p.y, (int)p.z, info);
+        box = info.boxIndex;
+
         int dx, dz;
         TR::Room::Sector *s = &level->getSector(e.room, (int)p.x, (int)p.z, dx, dz);
 
@@ -244,6 +247,12 @@ struct Door : Trigger {
         } else
             v[0] = v[1] = TR::FLOOR_BLOCK;
 
+        if (box != 0xFFFF) {
+            TR::Box &b = level->boxes[box];
+            if (b.overlap.blockable)
+                b.overlap.block = !getEntity().flags.active;
+        }
+
         if (floor[0]) *floor[0] = v[0];
         if (floor[1]) *floor[1] = v[1];
     }