I also wonder how on earth you check if a variable is equal to a certain value. Let's say that I want something done when variable x=0, how do I write that? if x=0 then ... end doesn't work, and neither does if x~=0 then ... end. Any ideas? The way I solve it now, if I want something done when x=c, I do "if x<=c then if x>c-1 then ... end end" which is pretty inconvenient. :)
local function draw_position()
xpos = memory.readbyte(...)
ypos = memory.readbyte(...)
gui.text(xpos, ypos-8, xpos)
gui.text(xpos, ypos, ypos)
end
gui.register(draw_position)while true do
local function displayer()
duck1x = memory.readbyte(0x303)
duck1y = memory.readbyte(0x302)
duck2x = memory.readbyte(0x353)
duck2y = memory.readbyte(0x352)
box1xcenter = duck1x
box1ycenter = duck1y
box2xcenter = duck2x
box2ycenter = duck2y
boxwidth = 32
boxheight = 32
xoffset = 0
yoffset = 8
--Sets the coordinates for the sides of the boxes.
leftside1 = box1xcenter-boxwidth/2 +xoffset
bottomside1 = box1ycenter+boxheight/2 -yoffset
rightside1 = box1xcenter+boxwidth/2 +xoffset
topside1 = box1ycenter-boxheight/2 -yoffset
leftside2 = box2xcenter-boxwidth/2 +xoffset
bottomside2 = box2ycenter+boxheight/2 -yoffset
rightside2 = box2xcenter+boxwidth/2 +xoffset
topside2 = box2ycenter-boxheight/2 -yoffset
--The following if-operations force the boxes to stay on screen, thus avoiding error messages.
if bottomside1>223 then bottomside1 = 223 end
if bottomside1<0 then bottomside1 = 0 end
if topside1 <0 then topside1 = 0 end
if rightside1 >255 then rightside1 = 255 end
if leftside1 <0 then leftside1 = 0 end
if bottomside2>223 then bottomside2 = 223 end
if bottomside2<0 then bottomside2 = 0 end
if topside2 <0 then topside2 = 0 end
if rightside2 >255 then rightside2 = 255 end
if leftside2 <0 then leftside2 = 0 end
--Now it's time to draw the boxes!
if duck1x>0 and duck1y>0 then gui.drawbox(leftside1,bottomside1,rightside1,topside1, "red") end
if duck2x>0 and duck2y>0 then gui.drawbox(leftside2,bottomside2,rightside2,topside2, "blue") end
end
gui.register(displayer)
FCEU.frameadvance()
end
The prediction wraps around (that's why you see a few dots on the left). Make sure you have started the game (so press start at the title screen!) because otherwise you'll see crap.
I would make a vid, but youtube keeps refusing my vids >:(
What it shows:
- Enemy health, above their heads. (The left "32" in the pic is due to the Mago teleporting every frame as it randomly picks a spot to appear at. Somewhat amusing. :p)
- Just below the status bar: how much damage your sword does, and numerical life and magic values.
- At the bottom: how many points you need for level-ups in each category, and how many small and large enemies you need to kill to get the next magic jar or point bag.
Now shows how many times you actually need to hit the enemy; turns the item drop counters into Nifty Little Meters(tm); and squishes everything into the top of the screen since I didn't like how showing stuff at the bottom obstructed the view of the floor, possibly leading to mistiming of water/lava jumps...<_<'
http://lua.pastey.net/93478
Download: http://stashbox.org/214267/4m_fceux_scripts.zip
General:
I realized I'd probably use some generic shapes often if I ever made some more scripts like this in the future, so I threw together some sets of drawing commands and stuck 'em in shapedefs.lua.
Zelda 2:
I finally took the time to figure out where the "is the enemy alive or dead" data is, so no more of this "health text hangs around stuck at 255 after I'm dead" thing. :p
Also gave said enemies some nifty lifebars, and changed the item drop meter gfx. ^_^
SMB1:
Not much to this one. Just adds a lives counter to the status bar and shows Bowser's health. :p
(Though I did solve a mystery that's been bugging me for years. Y'know how Bowser sometimes dies after only 4 fireballs? Well, look at the screenshot...Bowser is actually two 16x24-pixel sprites connected together, and it seems that the game registers a fireball on either half as a hit. You can see that the fireball hit both halves at once...I shot it underneath him as he was coming down from a jump.)-0.png)
-1.png)
It started out as something relatively simple (left). Then I kind of got carried away and you get the other one (right).
It even has a bonus cheat feature that constantly adds experience. Good for a few dozen levels early on, I guess.
Get it here, though why anybody would bother is beyond me.
