Make parkour even over non-air gaps

This will make parkour happen a lot more frequently over "dangerous" gaps, but it'll help make parkour more often when needed. This allows movement that wasn't possible before.

src/main/java/net/pistonmaster/serverwrecker/pathfinding/graph/MinecraftGraph.java

@@ -260,6 +260,14 @@ public GraphInstructions[] getActions(BotEntityState node) {
 
                                 parkourMovement.setImpossible(true);
                             }
+                            // We only want to jump over dangerous blocks/gaps
+                            // So either a non-full-block like water or lava or magma
+                            // since it hurts to stand on.
+                            case PARKOUR_UNSAFE_TO_STAND_ON -> {
+                                if (BlockTypeHelper.isSafeBlockToStandOn(blockState)) {
+                                    parkourMovement.setImpossible(true);
+                                }
+                            }
                             case MOVEMENT_SOLID -> {
                                 // Block is safe to walk on, no need to check for more
                                 if (blockState.blockShapeType().isFullBlock()) {
@@ -380,6 +388,11 @@ private static ParkourMovement registerParkourMovement(Object2ObjectMap<Vector3i
             }
         }
 
+        {
+            blockSubscribers.computeIfAbsent(movement.requiredUnsafeBlock(), CREATE_MISSING_FUNCTION)
+                    .add(new BlockSubscription(movementIndex, SubscriptionType.PARKOUR_UNSAFE_TO_STAND_ON));
+        }
+
         {
             blockSubscribers.computeIfAbsent(movement.requiredSolidBlock(), CREATE_MISSING_FUNCTION)
                     .add(new BlockSubscription(movementIndex, SubscriptionType.MOVEMENT_SOLID));
@@ -411,7 +424,8 @@ enum SubscriptionType {
         MOVEMENT_SOLID,
         MOVEMENT_ADD_CORNER_COST_IF_SOLID,
         MOVEMENT_AGAINST_PLACE_SOLID,
-        DOWN_SAFETY_CHECK
+        DOWN_SAFETY_CHECK,
+        PARKOUR_UNSAFE_TO_STAND_ON
     }
 
     record BlockSubscription(int movementIndex, SubscriptionType type, int blockArrayIndex,

src/main/java/net/pistonmaster/serverwrecker/pathfinding/graph/actions/parkour/ParkourMovement.java

@@ -62,9 +62,6 @@ public List<Vector3i> listRequiredFreeBlocks() {
 
         var oneFurther = direction.offset(FEET_POSITION_RELATIVE_BLOCK);
 
-        // The gap to jump over
-        requiredFreeBlocks.add(oneFurther.sub(0, 1, 0));
-
         // Room for jumping
         requiredFreeBlocks.add(oneFurther);
         requiredFreeBlocks.add(oneFurther.add(0, 1, 0));
@@ -80,6 +77,11 @@ public List<Vector3i> listRequiredFreeBlocks() {
         return requiredFreeBlocks;
     }
 
+    public Vector3i requiredUnsafeBlock() {
+        // The gap to jump over, needs to be unsafe for this movement to be possible
+        return direction.offset(FEET_POSITION_RELATIVE_BLOCK).sub(0, 1, 0);
+    }
+
     public Vector3i requiredSolidBlock() {
         // Floor block
         return targetFeetBlock.sub(0, 1, 0);