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Marble Madness trackball settings in MAME
mimic:
I somehow totally disregarded the links... ooops?
Anyway just tested the Crystal Castles the 29 doesn't work more like double that works nicely.
My head hurts from all of it. I need others to figure out these kind of things for me. That's why I'm not a rocket scientist. I'm gonna take a break now.
knightrdrx:
what feels right to me is playing with a NES controller. That's how I played it growing up and I got very good at keeping the ball straight.
I tried with a trackball and it is tiring! Plus I don't think there's a turbo speed button like the NES version has? Or maybe there is and I never looked at the mapping.
DarthMarino:
--- Quote from: knightrdrx on June 14, 2015, 11:11:31 pm ---what feels right to me is playing with a NES controller. That's how I played it growing up and I got very good at keeping the ball straight.
I tried with a trackball and it is tiring! Plus I don't think there's a turbo speed button like the NES version has? Or maybe there is and I never looked at the mapping.
--- End quote ---
The turbo button = roll the ball faster. They had to add the button on many of the ports like NES so you could have more control with a digital d-pad. It's not necessary with a trackball.
p1mrx:
--- Quote from: knightrdrx on June 14, 2015, 11:11:31 pm ---what feels right to me is playing with a NES controller. [...] Plus I don't think there's a turbo speed button like the NES version has?
--- End quote ---
In order to play Marble Madness on my MAME cabinet with 8-way sticks, I wrote this Lua script that adds fast and slow buttons:
--- Code: ----- mame marble -autoboot_script marble.lua
-- Set all Analog inputs to "None" in the menu.
players = {
{x_port = ":IN0", x_field = "Trackball X",
y_port = ":IN1", y_field = "Trackball Y",
prefix = "JOYCODE_1_",
xv = 0, yv = 0, text = ""},
{x_port = ":IN2", x_field = "Trackball X 2",
y_port = ":IN3", y_field = "Trackball Y 2",
prefix = "JOYCODE_2_",
xv = 0, yv = 0, text = ""}
}
function process_input(p)
local x_port = manager.machine.ioport.ports[p.x_port].fields[p.x_field]
local y_port = manager.machine.ioport.ports[p.y_port].fields[p.y_field]
local input = manager.machine.input
local delta = 16
p.text = "normal"
if input:code_pressed(input:code_from_token(p.prefix .. "BUTTON1")) then
delta = 64
p.text = "fast"
elseif input:code_pressed(input:code_from_token(p.prefix .. "BUTTON2")) then
delta = 4
p.text = "slow"
end
if input:code_pressed(input:code_from_token(p.prefix .. "XAXIS_LEFT_SWITCH")) then
p.xv = (p.xv + delta) % 256
x_port:set_value(p.xv)
end
if input:code_pressed(input:code_from_token(p.prefix .. "XAXIS_RIGHT_SWITCH")) then
p.xv = (p.xv - delta) % 256
x_port:set_value(p.xv)
end
if input:code_pressed(input:code_from_token(p.prefix .. "YAXIS_UP_SWITCH")) then
p.yv = (p.yv - delta) % 256
y_port:set_value(p.yv)
end
if input:code_pressed(input:code_from_token(p.prefix .. "YAXIS_DOWN_SWITCH")) then
p.yv = (p.yv + delta) % 256
y_port:set_value(p.yv)
end
end
frame_sub = emu.add_machine_frame_notifier(function()
process_input(players[1])
process_input(players[2])
end)
emu.register_frame_done(function()
local s = manager.machine.screens[":screen"]
s:draw_text(280, 5,
"P1: " .. players[1].text .. "\nP2: " .. players[2].text,
0xFFFFFFFF, 0xFF000000)
end)
--- End code ---
The same technique can control any game with analog inputs. I briefly experimented with a script for Super Off Road where you spin the stick to emulate a steering wheel, but that was too ridiculous to be practical.
KenToad:
http://forum.arcadecontrols.com/index.php/topic,164121.msg1729123.html#msg1729123
That thread has all the settings for trackball games in MAME and an explanation of the methodology.