Tinker with physics a bit

TODO.txt

@@ -2,6 +2,12 @@ fuck issue trackers :D
 
 =========== GENERAL ==============
 
+- try to prevent car getting stuck at extreme speed by may just hard stopping
+  it if it ends up unresolved?
+- car shadow idea: have shadow model, during rendering check each new triangle
+  agains car XY, record height, then set maimum height to shadow
+- Managed to get the car stuck in non-rotating state, then after a while get
+  it back by crashing. MAY BE FIXED NOW, watch if it still happens
 - press forward map??? :-D
 - make some kinda repo for world record runs?
 - fix the ramp map again due to new physics -- NOW it's almost good but it's
@@ -41,6 +47,10 @@ fuck issue trackers :D
 
 - immediately after starting the map countdown seems to be lower (seems to
   perhaps be caused by nextPhysicsFrameTime, look into it)
+- seems like there might be a bug in physics env function, despite it being
+  impossible in theory, car gets stuck after fast drive into a wall, with its
+  shape staying OK, but wheel being inside a block somehow, maybe there are
+  tiny spaces between blocks or some blocks are not checked -- resolve
 
 =========== HANDLED ==============
 

assets.h

@@ -514,9 +514,7 @@ static const char *LCR_internalDataFile =
   ":^C0C-I:fb11:^C1E-I:fb11:^C2F-I:fb11"
   ":vC2wL-:vC2F-:vM2wI-:vM2FJ-"
   // top:
-  ":^Few2:f411:^FeF2I:f411"
+  ":-Few2:f411:-FeF2:f411"
-  ":vFew2L:vFeF2:vJew2I:vJeF2J"
-  // vertical corners:
   ":AC3w|:f1b1:AM3w:f1b1"
   ":AC3FI:f1b1:AM3FL:f1b1"
   // ramps:
@@ -527,7 +525,7 @@ static const char *LCR_internalDataFile =
   ":'C1D:fb11"
   ":<C1C:fb11"
   // finish:
-  ":!Hgx:!HgE"
+  ":!Hgx:!Hgw:!HgE:!HgF"
 
   // TINY MAP 5:
 

racing.h

@@ -1475,7 +1475,22 @@ uint32_t LCR_racingStep(unsigned int input)
     {
       TPE_Joint tmpJoint = LCR_racing.carBody.joints[i];
       LCR_racing.carBody.joints[i] = joints[i];
-      joints[i] = tmpJoint;
+
+      if (LCR_racing.carBody.flags & TPE_BODY_FLAG_UNRESOLVED)
+      {
+        // if unsuccessful, keep the original pre-step pos. and decrease speed
+        joints[i].velocity[0] /= 2;
+        joints[i].velocity[1] /= 2;
+        joints[i].velocity[2] /= 2;
+      }
+      else
+      {
+        // in normal case back up this step and revert the body total lin. vel.
+        joints[i] = tmpJoint;
+        joints[i].velocity[0] /= LCR_CAR_JOINTS;
+        joints[i].velocity[1] /= LCR_CAR_JOINTS;
+        joints[i].velocity[2] /= LCR_CAR_JOINTS;
+      }
     }
 
     LCR_racing.carBody.flags &= ~TPE_BODY_FLAG_NONROTATING;
@@ -1487,19 +1502,8 @@ uint32_t LCR_racingStep(unsigned int input)
     {
       LCR_LOG2("using simplified physics");
 
-      for (int i = 0; i < LCR_CAR_JOINTS; ++i) // use the first step positions
+      for (int i = 0; i < LCR_CAR_JOINTS; ++i) // use the first step result
         LCR_racing.carBody.joints[i] = joints[i];
-
-      // If still not OK (slim chance), just stop the body (prevent uberbugs):
-
-      if ((LCR_racing.carBody.flags & TPE_BODY_FLAG_UNRESOLVED) ||
-        !_LCR_racingCarShapeOK())
-      {
-        TPE_bodyStop(&LCR_racing.carBody);
-
-        for (int k = 0; k < 2 * TPE_RESHAPE_ITERATIONS; ++k)
-          TPE_bodyReshape(&LCR_racing.carBody,_LCR_racingEnvironmentFunction);
-      }
     }
   }