ElevatorMovers always move at approximately the same speed (#951)

* elevators always move at approximately the same speed

* adjustments to elevator speed logic

* add ElevatorMover.Initialize()

* Update DXRFixes/DeusEx/Classes/ElevatorMover.uc

---------

Co-authored-by: Die4Ever <30947252+Die4Ever@users.noreply.github.com>

DXRFixes/DeusEx/Classes/ElevatorMover.uc

@@ -1,7 +1,50 @@
 class ElevatorMover merges ElevatorMover;
 // can't do injects because it uses a state
 
-var float lastTime;
+var float lastTime, moveSpeed, originalMoveTime;
+var int numKeyPos;
+var bool initialized;
+
+function Initialize()
+{
+    local SequenceTrigger st;
+    local float dist, maxDist, avgDist, distSum;
+    local int validKeyPos[8];
+    local int i, j;
+
+    if (initialized) return;
+
+    // calculate numKeyPos and make a list of valid KeyPos indices
+    foreach AllActors(class'SequenceTrigger', st) {
+        if (st.event != tag) continue;
+
+        // check if st.seqnum is already in the list
+        for (i = 0; i < numKeyPos; i++) {
+            if (validKeyPos[i] == st.seqnum) {
+                break;
+            }
+        }
+        // if not, add it and increment numKeyPos
+        if (i == numKeyPos) {
+            validKeyPos[numKeyPos++] = st.seqnum;
+        }
+    }
+
+    // do calculations using only valid KeyPos elements
+    for (i = 0; i < numKeyPos; i++) {
+        for (j = i + 1; j < numKeyPos; j++) {
+            dist = VSize(KeyPos[validKeyPos[i]] - KeyPos[validKeyPos[j]]);
+            maxDist = FMax(maxDist, dist);
+            distSum += dist;
+        }
+    }
+
+    avgDist = distSum / (numKeyPos * (numKeyPos - 1) / 2.0);
+    moveSpeed = (maxDist*0.33 + avgDist*0.67) / MoveTime;
+    originalMoveTime = MoveTime;
+
+    initialized = true;
+}
 
 function bool EncroachingOn( actor Other )
 {
@@ -23,17 +66,23 @@ function SetSeq(int seqnum)
     local int prevKeyNum;
     local float dist;
 
-    if( MoveTime/2 < Level.TimeSeconds-lastTime )
+    Initialize();
+
+    if( MoveTime/10 < Level.TimeSeconds-lastTime )
         oldSeq = true;
 
     if ( bIsMoving && !oldSeq )
         return;
 
+    dist = VSize(BasePos + KeyPos[seqnum] - Location);
+
+    if (numKeyPos > 2)
+        MoveTime = FMax(dist / moveSpeed, originalMoveTime / 2.5);
+
     if (KeyNum != seqnum || oldSeq)
     {
         prevKeyNum = KeyNum;
         KeyNum = seqnum;
-        dist = VSize(BasePos + KeyPos[seqnum] - Location);
 
         GotoState('ElevatorMover', 'Next');