Changed debug max distance to avoid overflow

Changed it to roughly sqrt(FLT_MAX), it's a little less to account for float inaccuracies.
Fixes #1835

servers/physics/collision_object_sw.h

@@ -37,7 +37,8 @@
 #include "shape_sw.h"
 
 #ifdef DEBUG_ENABLED
-#define MAX_OBJECT_DISTANCE 10000000.0
+#define MAX_OBJECT_DISTANCE 3.1622776601683791e+18
+
 #define MAX_OBJECT_DISTANCE_X2 (MAX_OBJECT_DISTANCE * MAX_OBJECT_DISTANCE)
 #endif