diff --git a/.gitignore b/.gitignore
index 9729c38d2..9ac6e3872 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,6 +8,7 @@
 *.la
 *~
 *.pref
+*.lua
 stdout.txt
 stderr.txt
 build/*
diff --git a/src/cat/LegacyLuaAPI.cpp b/src/cat/LegacyLuaAPI.cpp
index 04d1866ef..951a707ef 100644
--- a/src/cat/LegacyLuaAPI.cpp
+++ b/src/cat/LegacyLuaAPI.cpp
@@ -488,6 +488,7 @@ int luacon_elementwrite(lua_State* l){
 	free(key);
 	return 0;
 }
+bool shortcuts = true;
 int luacon_keyevent(int key, int modifier, int event){
 	int i = 0, kpcontinue = 1, callret;
 	char tempkey[] = {key, 0};
@@ -509,7 +510,7 @@ int luacon_keyevent(int key, int modifier, int event){
 			lua_pop(luacon_ci->l, 1);
 		}
 	}
-	return kpcontinue;
+	return kpcontinue && shortcuts;
 }
 int luacon_mouseevent(int mx, int my, int mb, int event, int mouse_wheel){
 	int i = 0, mpcontinue = 1, callret;
@@ -628,7 +629,7 @@ int luatpt_getelement(lua_State *l)
 
 int luacon_elementReplacement(UPDATE_FUNC_ARGS)
 {
-	int retval = 0;
+	int retval = 0, callret;
 	if(lua_el_func[parts[i].type]){
 		lua_rawgeti(luacon_ci->l, LUA_REGISTRYINDEX, lua_el_func[parts[i].type]);
 		lua_pushinteger(luacon_ci->l, i);
@@ -636,7 +637,9 @@ int luacon_elementReplacement(UPDATE_FUNC_ARGS)
 		lua_pushinteger(luacon_ci->l, y);
 		lua_pushinteger(luacon_ci->l, surround_space);
 		lua_pushinteger(luacon_ci->l, nt);
-		lua_pcall(luacon_ci->l, 5, 1, 0);
+		callret = lua_pcall(luacon_ci->l, 5, 1, 0);
+		if (callret)
+			luacon_ci->Log(CommandInterface::LogError, luacon_geterror());
 		if(lua_isboolean(luacon_ci->l, -1)){
 			retval = lua_toboolean(luacon_ci->l, -1);
 		}
@@ -675,13 +678,15 @@ int luatpt_element_func(lua_State *l)
 
 int luacon_graphicsReplacement(GRAPHICS_FUNC_ARGS)
 {
-	int cache = 0;
+	int cache = 0, callret;
 	lua_rawgeti(luacon_ci->l, LUA_REGISTRYINDEX, lua_gr_func[cpart->type]);
 	lua_pushinteger(luacon_ci->l, 0);
 	lua_pushinteger(luacon_ci->l, *colr);
 	lua_pushinteger(luacon_ci->l, *colg);
 	lua_pushinteger(luacon_ci->l, *colb);
-	lua_pcall(luacon_ci->l, 4, 10, 0);
+	callret = lua_pcall(luacon_ci->l, 4, 10, 0);
+	if (callret)
+		luacon_ci->Log(CommandInterface::LogError, luacon_geterror());
 
 	cache = luaL_optint(luacon_ci->l, -10, 0);
 	*pixel_mode = luaL_optint(luacon_ci->l, -9, *pixel_mode);
@@ -694,6 +699,7 @@ int luacon_graphicsReplacement(GRAPHICS_FUNC_ARGS)
 	*fireg = luaL_optint(luacon_ci->l, -2, *fireg);
 	*fireb = luaL_optint(luacon_ci->l, -1, *fireb);
 	lua_pop(luacon_ci->l, 10);
+
 	return cache;
 }
 
@@ -1404,7 +1410,12 @@ int luatpt_get_name(lua_State* l)
 
 int luatpt_set_shortcuts(lua_State* l)
 {
-	return luaL_error(l, "set_shortcuts: deprecated");
+	int shortcut = luaL_optint(l, 1, 0);
+	if (shortcut)
+		shortcuts = true;
+	else
+		shortcuts = false;
+	return 0;
 }
 
 int luatpt_delete(lua_State* l)
@@ -1708,7 +1719,7 @@ int luatpt_setfire(lua_State* l)
 }
 int luatpt_setdebug(lua_State* l)
 {
-	return luaL_error(l, "setdebug: Deprecated");
+	return luaL_error(l, "setdebug: Deprecated"); //TODO: maybe use the debugInfo thing in GameController to implement this
 }
 int luatpt_setfpscap(lua_State* l)
 {
@@ -1819,7 +1830,6 @@ int screenshotIndex = 0;
 
 int luatpt_screenshot(lua_State* l)
 {
-	//TODO Implement
 	int captureUI = luaL_optint(l, 1, 0);
 	std::vector<char> data;
 	if(captureUI)
diff --git a/src/cat/LuaScriptInterface.cpp b/src/cat/LuaScriptInterface.cpp
index 0082f4a23..88fe9344f 100644
--- a/src/cat/LuaScriptInterface.cpp
+++ b/src/cat/LuaScriptInterface.cpp
@@ -406,6 +406,11 @@ void LuaScriptInterface::initSimulationAPI()
 		{"partChangeType", simulation_partChangeType},
 		{"partCreate", simulation_partCreate},
 		{"partKill", simulation_partKill},
+		{"pressure", simulation_pressure},
+		{"ambientHeat", simulation_ambientHeat},
+		{"velocityX", simulation_velocityX},
+		{"velocityY", simulation_velocityY},
+		{"gravMap", simulation_gravMap},
 		{NULL, NULL}
 	};
 	luaL_register(l, "simulation", simulationAPIMethods);
@@ -415,6 +420,42 @@ void LuaScriptInterface::initSimulationAPI()
 	lua_getglobal(l, "simulation");
 	lua_setglobal(l, "sim");
 
+	//Static values
+	lua_pushinteger(l, XRES); lua_setfield(l, simulationAPI, "XRES");
+	lua_pushinteger(l, YRES); lua_setfield(l, simulationAPI, "YRES");
+	lua_pushinteger(l, PT_NUM); lua_setfield(l, simulationAPI, "PT_NUM");
+	lua_pushinteger(l, luacon_sim->NUM_PARTS); lua_setfield(l, simulationAPI, "NUM_PARTS");
+	lua_pushinteger(l, R_TEMP); lua_setfield(l, simulationAPI, "R_TEMP");
+	lua_pushinteger(l, MAX_TEMP); lua_setfield(l, simulationAPI, "MAX_TEMP");
+	lua_pushinteger(l, MIN_TEMP); lua_setfield(l, simulationAPI, "MIN_TEMP");
+
+}
+
+void LuaScriptInterface::set_map(int x, int y, int width, int height, float value, int map) // A function so this won't need to be repeated many times later
+{
+	int nx, ny;
+	if(x > (XRES/CELL)-1)
+		x = (XRES/CELL)-1;
+	if(y > (YRES/CELL)-1)
+		y = (YRES/CELL)-1;
+	if(x+width > (XRES/CELL)-1)
+		width = (XRES/CELL)-x;
+	if(y+height > (YRES/CELL)-1)
+		height = (YRES/CELL)-y;
+	for (nx = x; nx<x+width; nx++)
+		for (ny = y; ny<y+height; ny++)
+		{
+			if (map == 1)
+				luacon_sim->pv[ny][nx] = value;
+			else if (map == 2)
+				luacon_sim->hv[ny][nx] = value;
+			else if (map == 3)
+				luacon_sim->vx[ny][nx] = value;
+			else if (map == 4)
+				luacon_sim->vy[ny][nx] = value;
+			else if (map == 5)
+				luacon_sim->gravmap[ny*XRES/CELL+nx] = value; //gravx/y don't seem to work, but this does. opposite of tpt
+		}
 }
 
 int LuaScriptInterface::simulation_partNeighbours(lua_State * l)
@@ -484,6 +525,186 @@ int LuaScriptInterface::simulation_partKill(lua_State * l)
 	return 0;
 }
 
+int LuaScriptInterface::simulation_pressure(lua_State* l)
+{
+	int argCount = lua_gettop(l);
+	luaL_checktype(l, 1, LUA_TNUMBER);
+	luaL_checktype(l, 2, LUA_TNUMBER);
+	int x = lua_tointeger(l, 1);
+	int y = lua_tointeger(l, 2);
+	if (x*CELL<0 || y*CELL<0 || x*CELL>=XRES || y*CELL>=YRES)
+		return luaL_error(l, "coordinates out of range (%d,%d)", x, y);
+
+	if (argCount == 2)
+	{
+		lua_pushnumber(l, luacon_sim->pv[y][x]);
+		return 1;
+	}
+	int width = 1, height = 1;
+	float value;
+	luaL_checktype(l, 3, LUA_TNUMBER);
+	if (argCount == 3)
+		value = (float)lua_tonumber(l, 3);
+	else
+	{
+		luaL_checktype(l, 4, LUA_TNUMBER);
+		luaL_checktype(l, 5, LUA_TNUMBER);
+		width = lua_tointeger(l, 3);
+		height = lua_tointeger(l, 4);
+		value = (float)lua_tonumber(l, 5);
+	}
+	if(value > 256.0f)
+		value = 256.0f;
+	else if(value < -256.0f)
+		value = -256.0f;
+
+	set_map(x, y, width, height, value, 1);
+	return 0;
+}
+
+int LuaScriptInterface::simulation_ambientHeat(lua_State* l)
+{
+	int argCount = lua_gettop(l);
+	luaL_checktype(l, 1, LUA_TNUMBER);
+	luaL_checktype(l, 2, LUA_TNUMBER);
+	int x = lua_tointeger(l, 1);
+	int y = lua_tointeger(l, 2);
+	if (x*CELL<0 || y*CELL<0 || x*CELL>=XRES || y*CELL>=YRES)
+		return luaL_error(l, "coordinates out of range (%d,%d)", x, y);
+
+	if (argCount == 2)
+	{
+		lua_pushnumber(l, luacon_sim->hv[y][x]);
+		return 1;
+	}
+	int width = 1, height = 1;
+	float value;
+	luaL_checktype(l, 3, LUA_TNUMBER);
+	if (argCount == 3)
+		value = (float)lua_tonumber(l, 3);
+	else
+	{
+		luaL_checktype(l, 4, LUA_TNUMBER);
+		luaL_checktype(l, 5, LUA_TNUMBER);
+		width = lua_tointeger(l, 3);
+		height = lua_tointeger(l, 4);
+		value = (float)lua_tonumber(l, 5);
+	}
+	if(value > MAX_TEMP)
+		value = MAX_TEMP;
+	else if(value < MIN_TEMP)
+		value = MIN_TEMP;
+
+	set_map(x, y, width, height, value, 2);
+	return 0;
+}
+
+int LuaScriptInterface::simulation_velocityX(lua_State* l)
+{
+	int argCount = lua_gettop(l);
+	luaL_checktype(l, 1, LUA_TNUMBER);
+	luaL_checktype(l, 2, LUA_TNUMBER);
+	int x = lua_tointeger(l, 1);
+	int y = lua_tointeger(l, 2);
+	if (x*CELL<0 || y*CELL<0 || x*CELL>=XRES || y*CELL>=YRES)
+		return luaL_error(l, "coordinates out of range (%d,%d)", x, y);
+
+	if (argCount == 2)
+	{
+		lua_pushnumber(l, luacon_sim->vx[y][x]);
+		return 1;
+	}
+	int width = 1, height = 1;
+	float value;
+	luaL_checktype(l, 3, LUA_TNUMBER);
+	if (argCount == 3)
+		value = (float)lua_tonumber(l, 3);
+	else
+	{
+		luaL_checktype(l, 4, LUA_TNUMBER);
+		luaL_checktype(l, 5, LUA_TNUMBER);
+		width = lua_tointeger(l, 3);
+		height = lua_tointeger(l, 4);
+		value = (float)lua_tonumber(l, 5);
+	}
+	if(value > 256.0f)
+		value = 256.0f;
+	else if(value < -256.0f)
+		value = -256.0f;
+
+	set_map(x, y, width, height, value, 3);
+	return 0;
+}
+
+int LuaScriptInterface::simulation_velocityY(lua_State* l)
+{
+	int argCount = lua_gettop(l);
+	luaL_checktype(l, 1, LUA_TNUMBER);
+	luaL_checktype(l, 2, LUA_TNUMBER);
+	int x = lua_tointeger(l, 1);
+	int y = lua_tointeger(l, 2);
+	if (x*CELL<0 || y*CELL<0 || x*CELL>=XRES || y*CELL>=YRES)
+		return luaL_error(l, "coordinates out of range (%d,%d)", x, y);
+
+	if (argCount == 2)
+	{
+		lua_pushnumber(l, luacon_sim->vy[y][x]);
+		return 1;
+	}
+	int width = 1, height = 1;
+	float value;
+	luaL_checktype(l, 3, LUA_TNUMBER);
+	if (argCount == 3)
+		value = (float)lua_tonumber(l, 3);
+	else
+	{
+		luaL_checktype(l, 4, LUA_TNUMBER);
+		luaL_checktype(l, 5, LUA_TNUMBER);
+		width = lua_tointeger(l, 3);
+		height = lua_tointeger(l, 4);
+		value = (float)lua_tonumber(l, 5);
+	}
+	if(value > 256.0f)
+		value = 256.0f;
+	else if(value < -256.0f)
+		value = -256.0f;
+
+	set_map(x, y, width, height, value, 4);
+	return 0;
+}
+
+int LuaScriptInterface::simulation_gravMap(lua_State* l)
+{
+	int argCount = lua_gettop(l);
+	luaL_checktype(l, 1, LUA_TNUMBER);
+	luaL_checktype(l, 2, LUA_TNUMBER);
+	int x = lua_tointeger(l, 1);
+	int y = lua_tointeger(l, 2);
+	if (x*CELL<0 || y*CELL<0 || x*CELL>=XRES || y*CELL>=YRES)
+		return luaL_error(l, "coordinates out of range (%d,%d)", x, y);
+
+	/*if (argCount == 2)
+	{
+		lua_pushnumber(l, luacon_sim->gravmap[y*XRES/CELL+x]);
+		return 1;
+	}*/
+	int width = 1, height = 1;
+	float value;
+	luaL_checktype(l, 3, LUA_TNUMBER);
+	if (argCount == 3)
+		value = (float)lua_tonumber(l, 3);
+	else
+	{
+		luaL_checktype(l, 4, LUA_TNUMBER);
+		luaL_checktype(l, 5, LUA_TNUMBER);
+		width = lua_tointeger(l, 3);
+		height = lua_tointeger(l, 4);
+		value = (float)lua_tonumber(l, 5);
+	}
+
+	set_map(x, y, width, height, value, 5);
+	return 0;
+}
 
 //// Begin Renderer API
 
diff --git a/src/cat/LuaScriptInterface.h b/src/cat/LuaScriptInterface.h
index 616398aa3..f7b1a13d3 100644
--- a/src/cat/LuaScriptInterface.h
+++ b/src/cat/LuaScriptInterface.h
@@ -55,10 +55,16 @@ class LuaScriptInterface: public CommandInterface
 
 	//Simulation
 	void initSimulationAPI();
+	static void set_map(int x, int y, int width, int height, float value, int mapType);
 	static int simulation_partNeighbours(lua_State * l);
 	static int simulation_partChangeType(lua_State * l);
 	static int simulation_partCreate(lua_State * l);
 	static int simulation_partKill(lua_State * l);
+	static int simulation_pressure(lua_State * l);
+	static int simulation_velocityX(lua_State * l);
+	static int simulation_velocityY(lua_State * l);
+	static int simulation_gravMap(lua_State * l);
+	static int simulation_ambientHeat(lua_State * l);
 
 	//Renderer
 	void initRendererAPI();