[1] aiGoalFollowWayPts::Update()

code/midtown/mmai/aiGoalFollowWayPts.cpp

@@ -25,6 +25,8 @@ define_dummy_symbol(mmai_aiGoalFollowWayPts);
 
 #include "aiData.h"
 #include "aiMap.h"
+#include "aiPath.h"
+#include "aiVehicleOpponent.h"
 
 b32 aiGoalFollowWayPts::Context()
 {
@@ -55,3 +57,124 @@ b32 aiGoalFollowWayPts::Context()
         return false;
     }
 }
+
+i32 aiGoalFollowWayPts::GetWayPtId(i16 index, i32 num_waypts)
+{
+    if (index < 0 || index > num_waypts)
+    {
+        Warningf("Check Point Index: %d, is outside of the array bounds.", index);
+        Warningf("Requested by: Opp %d.", Vehicle->OppId);
+        return WayPtIds[num_waypts];
+    }
+    return WayPtIds[index];
+}
+
+void aiGoalFollowWayPts::Update()
+{
+    i16 unk_var1 = 0;
+    i32 unk_var2 = 1;
+
+    ++UpdateCount;
+
+    if ((Car->Sim.ICS.Constraints & (ICS_CONSTRAIN_TX | ICS_CONSTRAIN_TZ)) != 0)
+    {
+        if (Car->Sim.FrontLeft.OnGround)
+        {
+            Car->Sim.Steering = 0.0f;
+            Car->Sim.Brakes = 0.0f;
+            Car->Sim.Engine.Throttle = 1.0f;
+            return;
+        }
+    }
+
+    Stuck.Update();
+
+    if (Car->Sim.Stuck.State == CAR_STUCK)
+    {
+        PlanRoute();
+        *BackingUp = true;
+        Car->Sim.ICS.LinearMomentum = {0.0f, 0.0f, 0.0f};
+        Car->Sim.ICS.AngularMomentum = {0.0f, 0.0f, 0.0f};
+        UpdateCount = 0;
+    }
+    else if (Stuck.State == CAR_STUCK)
+    {
+        Car->Sim.Steering = 0.5f;
+        Car->Sim.Brakes = 0.0f;
+        Car->Sim.Engine.Throttle = 1.0f;
+        Car->Sim.Stuck.State = CAR_NOT_STUCK;
+    }
+    else
+    {
+        i16 road_segment_id;
+
+        if (WayPtIdx <= 1 || WayPtIdx >= NumWayPts - 1)
+        {
+            road_segment_id = -1;
+        }
+        else
+        {
+            i16 prev_wp_index = WayPtIdx - 1;
+
+            i32 prev_wp_id = GetWayPtId(prev_wp_index, NumWayPts);
+            i32 cur_wp_id = GetWayPtId(WayPtIdx, NumWayPts);
+
+            road_segment_id = DetRdSegBetweenInts(AIMAP.Intersection(prev_wp_id), AIMAP.Intersection(cur_wp_id))->Id;
+        }
+
+        LastMapCompType = road_segment_id;
+
+        CurMapCompIdx = static_cast<i16>(
+            AIMAP.DetermineOppMapComponent(Car->Sim.ICS.Matrix, Rail, &CurMapCompType, &CurRdVertIdx, &Rail->RoadDist,
+                &DistToSide, &unk_var1, &TargetPtOffset, Car->Sim.Speed, LastMapCompType, road_segment_id));
+
+        PlanRoute();
+
+        if (Rail->NextLink)
+        {
+            Rail->NextLink->StopDestinationSources(1);
+        }
+
+        if (Vehicle->IsSemi || !DetectCollision(&unk_var2))
+        {
+            aiVehicleOpponent* collision_opp = DetectOpponentCollision();
+
+            if (collision_opp)
+            {
+                AvoidOpponentCollision(collision_opp);
+            }
+            else
+            {
+                SolveTargetPoint();
+            }
+        }
+        else
+        {
+            AvoidCollision(unk_var2);
+        }
+
+        Vector3 target_dir = TargetPt - Car->Sim.ICS.Matrix.m3;
+
+        f32 angle = std::atan2(target_dir ^ Car->Sim.ICS.Matrix.m0, target_dir ^ -Car->Sim.ICS.Matrix.m2);
+
+        Steering = std::clamp(angle, -1.0f, 1.0f);
+
+        if (Car->Model.Flags & INST_FLAG_COLLIDED_PLAYER)
+        {
+            *Car->Sim.Realism = 1.0f;
+        }
+        else
+        {
+            *Car->Sim.Realism = 0.0f;
+
+            if (angle < 0.1f && angle > -0.1f)
+            {
+                Car->Sim.ICS.AngularMomentum *= 0.1f;
+            }
+        }
+        Car->Sim.Steering = Steering;
+        Car->Sim.Brakes = Brakes;
+        Car->Sim.Engine.Throttle = Throttle;
+        LastMapCompType = CurMapCompType;
+    }
+}

code/midtown/mmai/aiGoalFollowWayPts.h

@@ -58,6 +58,10 @@
 
 class aiVehicleOpponent;
 
+#define CAR_NOT_STUCK 0
+#define CAR_MAYBE_STUCK 1
+#define CAR_STUCK 2
+
 class aiGoalFollowWayPts final : public aiGoal
 {
 public:
@@ -96,7 +100,7 @@ class aiGoalFollowWayPts final : public aiGoal
     ARTS_IMPORT void Reset() override;
 
     // ?Update@aiGoalFollowWayPts@@UAEXXZ
-    ARTS_IMPORT void Update() override;
+    ARTS_EXPORT void Update() override;
 
     // ?DeclareFields@aiGoalFollowWayPts@@SAXXZ
     ARTS_IMPORT static void DeclareFields();
@@ -135,6 +139,9 @@ class aiGoalFollowWayPts final : public aiGoal
     // ?SolveTargetPoint@aiGoalFollowWayPts@@AAEXXZ
     ARTS_IMPORT void SolveTargetPoint();
 
+    i32 GetWayPtId(i16 index, i32 num_waypts);
+
+public:
     aiVehicleOpponent* Vehicle;
     aiRailSet* Rail;
     mmCar* Car;

code/midtown/mmai/aiStuck.h

@@ -35,6 +35,7 @@
 */
 
 #include "arts7/node.h"
+#include "vector7/vector3.h"
 
 class mmCarSim;
 
@@ -69,7 +70,18 @@ class aiStuck final : public asNode
     // ?Update@aiStuck@@UAEXXZ
     ARTS_IMPORT void Update() override;
 
-    u8 gap20[0x38];
+    i32 State;
+    i32 Impacted;
+    i32 field_28;
+    Vector3 field_2C;
+    i32 TimeThresh;
+    i32 PosThresh;
+    i32 MoveThresh;
+    i32 PosThreshSqr;
+    i32 MoveThreshSqr;
+    i32 RotAmount;
+    i32* ICS;
+    mmCarSim* CarSim;
 };
 
 check_size(aiStuck, 0x58);

code/midtown/mmai/aiVehicle.h

@@ -29,6 +29,8 @@
     0x61BC40 | const aiVehicle::`vftable' | ??_7aiVehicle@@6B@
 */
 
+#include "data7/list.h"
+
 class aiVehicle
 {
 public:
@@ -51,7 +53,9 @@ class aiVehicle
     // ?Init@aiVehicle@@QAEXH@Z
     ARTS_IMPORT void Init(i32 arg1);
 
-    u8 gap4[0x10];
+    List Goals;
+    i16 OppId;
+    i16 UpdateGroup;
 };
 
 check_size(aiVehicle, 0x14);

code/midtown/mmcity/inst.h

@@ -354,7 +354,7 @@ class mmInstance : public Base
 #define INST_FLAG_TERRAIN 0x800
 #define INST_FLAG_1000 0x1000 // mmBangerInstance::Draw - Increment lod
 #define INST_FLAG_2000 0x2000 // Important shadows
-#define INST_FLAG_4000 0x4000 // Collided with Player?
+#define INST_FLAG_COLLIDED_PLAYER 0x4000
 
     // INST_FLAG_*
     u16 Flags {INST_FLAG_ACTIVE};