Fix Moles and some UI Interpolation bugs (#565)

* Update render_objects.c

* Update FrameInterpolation.h

* Update render_objects.c

* Fix mac compile probably

* Fix Mole Dirt Particles

* Fix Mole Duplication Bug, probably

* Fix drawing using wrong camera bug

1 files changed, 26 insertions, 3 deletions

diff --git a/src/engine/objects/MoleGroup.cpp b/src/engine/objects/MoleGroup.cpp
index 6e98edbbb..af936ed3f 100644
--- a/src/engine/objects/MoleGroup.cpp
+++ b/src/engine/objects/MoleGroup.cpp
@@ -8,12 +8,17 @@ extern "C" {
 #include "math_util_2.h"
 }
 
-OMoleGroup::OMoleGroup(std::vector<FVector> spawns) {
+size_t OMoleGroup::_count = 0;
+
+OMoleGroup::OMoleGroup(std::vector<FVector>& spawns) {
+    _idx = _count;
     for (auto& pos : spawns) {
         pos.x * xOrientation;
         OMole* ptr = reinterpret_cast<OMole*>(gWorldInstance.AddObject(new OMole(pos, this)));
         _moles.push_back({ptr, pos, false});
     }
+
+    _count += 1;
 }
 
 void OMoleGroup::Tick() {
@@ -24,14 +29,32 @@ void OMoleGroup::Tick() {
             mole.Mole->func_800821AC(mole.Mole->_objectIndex, 1);
         }
     }
+
+    /**
+     * This ticks the mole dirt particles. It must be ran *after* MoleGroup is done ticking. Otherwise, the dirt particle directions will not randomize
+     * The best solution would be for particles to be its own class. But that takes effort
+     * Instead, we wait until the last MoleGroup has ticked, then we tick the particles one time.
+     * 
+     * Warning: Calling this more than one time per frame, will result in doubling the speed
+     */ 
+    if (_idx == _count - 1) {
+        for (size_t i = 0; i < gObjectParticle2_SIZE; i++) {
+            s32 objectIndex = gObjectParticle2[i];
+            if (gObjectList[objectIndex].state != 0) {
+                if (nullptr != _moles[0].Mole) {
+                    _moles[0].Mole->func_80081790(objectIndex);
+                }
+            }
+        }
+    }
 }
 
 void OMoleGroup::func_80081FF4(s32 objectIndex) {
     init_object(objectIndex, 0);
     gObjectList[objectIndex].unk_04C = random_int(30) + 5;
 
-    s16 mole = random_int(_moles.size() - 1);
-    for (size_t i = 0; i < _moles.size() - 1; i++) {
+    s16 mole = random_int(_moles.size());
+    for (size_t i = 0; i < _moles.size(); i++) {
         if (_moles[mole].Active == true) {
             mole++;
             if (mole == _moles.size()) {