Tweak turret values and expand README

README.txt

@@ -5,12 +5,23 @@ Installation:
 -------------
 Place it in $path_user/games/ and select it in the main menu.
 
-Gameplay:
----------
+Tips and Tricks:
+----------------
 - The main goal is to mine Score
-- Mine iron to upgrade your pick
-- Mine coal to get more light
-- Move farther away from the spawn to get to advanced "levels"
+- Place a light after spawning so you can see stuff
+    - If you are unable to do that, try placing the light under yourself while
+      jumping and looking down
+- Levels are annular around spawn
+- To speed up your pick you need iron from the current level
+- To level up you need iron from the next level
+- To get more light you need coal
+- Turrets are the only source of damage; there is no fall damage
+- To heal you need turrets
+- When you die you spawn nearby, so you get a chance to get your light back
+- It is not considered cheating to use the coordinates in the F5 info
+    - If you want a real challenge do it without this
+- Sometimes you spawn inside of blocks
+    - Create a new world or dig yourself out in this case
 
 License of sourcecode:
 ----------------------

mods/score/init.lua

@@ -79,7 +79,7 @@ end
 
 local function get_heal_cost(level)
 	local cost = {}
-	cost["score:turret_" .. level] = 15
+	cost["score:turret_" .. level] = 10
 	return cost
 end
 
@@ -655,7 +655,7 @@ minetest.register_tool(":", {
 -- Turret
 --
 
-local TURRET_RANGE = 10
+local TURRET_RANGE = 8
 
 minetest.register_entity("score:turret_flash", {
 	initial_properties = {