Only count upwards motion for barrel launch

README.md

@@ -32,3 +32,4 @@ An AI based on SethBling's MarI/O to play Donkey Kong Country 2 with lsnes.
 * [SethBling's Mar I/O](https://github.com/mam91/neat-genetic-mario)
 * [Basic tilemap info from p4plus2/DKC2-disassembly](https://github.com/p4plus2/DKC2-disassembly)
 * [dkjson](http://dkolf.de/src/dkjson-lua.fsl/home)
+* [LibDeflate](https://github.com/SafeteeWoW/LibDeflate)

game.lua

@@ -71,11 +71,17 @@ end
 
 function _M.getVelocityY()
     local sprite = _M.getSprite(leader)
+    if sprite == nil then
+        return 1900
+    end
     return sprite.velocityY
 end
 
 function _M.getVelocityX()
     local sprite = _M.getSprite(leader)
+    if sprite == nil then
+        return 1900
+    end
     return sprite.velocityX
 end
 

neat-donk.lua

@@ -802,10 +802,10 @@ function mainLoop (species, genome)
 
         -- Don't punish being launched by barrels
         -- FIXME Will this skew mine cart levels?
-        if math.abs(game.getVelocityY()) > 0x1800 or math.abs(game.getVelocityX()) > 0x1800 then
-            statusLine = "Barrel launch!!!"
+        if game.getVelocityY() < -1850 then
+            statusLine = string.format("Gotta go fast!!! %d", partyX)
             statusColor = 0x0000ff00
-            timeout = timeoutConst
+            timeout = timeoutConst + 60 * 2
         end
 
         if not vertical then