Oyxgen env

core/src/mindustry/world/meta/Env.java

@@ -3,12 +3,22 @@ package mindustry.world.meta;
 /** Environmental flags for different types of locations. */
 public class Env{
     public static final int
+    //is on a planet
     terrestrial = 1,
+    //is in space, no atmosphere
     space = 1 << 1,
+    //is underwater, on a planet
     underwater = 1 << 2,
+    //has a spores
     spores = 1 << 3,
+    //has a scorching env effect
     scorching = 1 << 4,
+    //has oil reservoirs
     groundOil = 1 << 5,
+    //has water reservoirs
     groundWater = 1 << 6,
+    //has oxygen in the atmosphere
+    oxygen = 1 << 7,
+    //all attributes combined, only used for bitmasking purposes
     any = 0xffffffff;
 }