Updated to work with BizHawk 2.9.1

In BizHawk 2.9.1 calling memory.readbyte() inside of the getTile() function was returning noise from some other part of memory. I've changed the memorydomain to "WRAM" to fix this problem. This solution appears to be backwards compatible with at least version 2.2.1

neat-mario/game.lua

@@ -1,7 +1,9 @@
 --Notes here
 config = require "config"
 spritelist = require "spritelist"
+
 local _M = {}
+memory.usememorydomain("WRAM")
 
 function _M.getPositions()
 	marioX = memory.read_s16_le(0x94)
@@ -66,10 +68,12 @@ end
 function _M.getTile(dx, dy)
 	x = math.floor((marioX+dx+8)/16)
 	y = math.floor((marioY+dy)/16)
-		
-	return memory.readbyte(0x1C800 + math.floor(x/0x10)*0x1B0 + y*0x10 + x%0x10)
+	
+	tile = memory.readbyte(0x1C800 + math.floor(x/0x10)*0x1B0 + y*0x10 + x%0x10)
+	return tile
 end
 
+
 function _M.getSprites()
 	local sprites = {}
 	for slot=0,11 do
@@ -98,6 +102,53 @@ function _M.getExtendedSprites()
 	return extended
 end
 
+--[[
+function _M.getSprites()
+        if gameinfo.getromname() == "Super Mario World (USA)" then
+                local sprites = {}
+                for slot=0,11 do
+                        local status = memory.readbyte(0x14C8+slot)
+                        if status ~= 0 then
+                                spritex = memory.readbyte(0xE4+slot) + memory.readbyte(0x14E0+slot)*256
+                                spritey = memory.readbyte(0xD8+slot) + memory.readbyte(0x14D4+slot)*256
+                                sprites[#sprites+1] = {["x"]=spritex, ["y"]=spritey}
+                        end
+                end            
+               
+                return sprites
+        elseif gameinfo.getromname() == "Super Mario Bros." then
+                local sprites = {}
+                for slot=0,4 do
+                        local enemy = memory.readbyte(0xF+slot)
+                        if enemy ~= 0 then
+                                local ex = memory.readbyte(0x6E + slot)*0x100 + memory.readbyte(0x87+slot)
+                                local ey = memory.readbyte(0xCF + slot)+24
+                                sprites[#sprites+1] = {["x"]=ex,["y"]=ey}
+                        end
+                end
+               
+                return sprites
+        end
+end
+ 
+function _M.getExtendedSprites()
+        if gameinfo.getromname() == "Super Mario World (USA)" then
+                local extended = {}
+                for slot=0,11 do
+                        local number = memory.readbyte(0x170B+slot)
+                        if number ~= 0 then
+                                spritex = memory.readbyte(0x171F+slot) + memory.readbyte(0x1733+slot)*256
+                                spritey = memory.readbyte(0x1715+slot) + memory.readbyte(0x1729+slot)*256
+                                extended[#extended+1] = {["x"]=spritex, ["y"]=spritey}
+                        end
+                end            
+               
+                return extended
+        elseif gameinfo.getromname() == "Super Mario Bros." then
+                return {}
+        end
+end
+--]]
 function _M.getInputs()
 	_M.getPositions()
 	
@@ -110,17 +161,17 @@ function _M.getInputs()
 	local layer1x = memory.read_s16_le(0x1A);
 	local layer1y = memory.read_s16_le(0x1C);
 	
-	
 	for dy=-config.BoxRadius*16,config.BoxRadius*16,16 do
 		for dx=-config.BoxRadius*16,config.BoxRadius*16,16 do
 			inputs[#inputs+1] = 0
 			inputDeltaDistance[#inputDeltaDistance+1] = 1
 			
 			tile = _M.getTile(dx, dy)
-			if tile == 1 and marioY+dy < 0x1B0 then
+			if tile == 0x1 and marioY+dy < 0x1B0 then
 				inputs[#inputs] = 1
 			end
 			
+			
 			for i = 1,#sprites do
 				distx = math.abs(sprites[i]["x"] - (marioX+dx))
 				disty = math.abs(sprites[i]["y"] - (marioY+dy))
@@ -169,4 +220,4 @@ function _M.clearJoypad()
 	joypad.set(controller)
 end
 
-return _M
+return _M