fceux/trunk/output/luaScripts/x_functions.lua

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2009-03-29 22:47:19 +00:00
x_func_version = 6;
--[[
Minor version history:
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v5 -----------
- Added Bisqwit's 'clone table' function.
2009-03-29 22:47:19 +00:00
v6 -----------
- added pairs by keys
- added hitbox functions
]]
-- Draws a line from x1,y1 to x2,y2 using color
function line(x1,y1,x2,y2,color)
if (x1 >= 0 and x1 <= 255 and x2 >= 0 and x2 <= 255 and y1 >= 0 and y1 <= 244 and y2 >= 0 and y2 <= 244) then
local success = pcall(function() gui.drawline(x1,y1,x2,y2,color) end);
if not success then
text(60, 224, "ERROR: ".. x1 ..",".. y1 .." ".. x2 ..",".. y2);
end;
end;
end;
-- Puts text on-screen (duh)
function text(x,y,str)
if str == nil then
str = "nil";
end;
if (x >= 0 and x <= 255 and y >= 0 and y <= 240) then
gui.text(x,y,str);
end;
end;
-- Sets the pixel at x, y to color
function pixel(x,y,color)
if (x >= 0 and x <= 255 and y >= 0 and y <= 240) then
gui.drawpixel(x,y,color);
end;
end;
-- Draws a rectangle from x1,y1 to x2, y2
function box(x1,y1,x2,y2,color)
if (x1 >= 0 and x1 <= 255 and x2 >= 0 and x2 <= 255 and y1 >= 0 and y1 <= 244 and y2 >= 0 and y2 <= 244) then
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--[[ local success = pcall(function() gui.drawbox(x1,y1,x2,y2,color); end);
if not success then
text(60, 150, string.format("%3d %3d %3d %3d", x1, y1, x2, y2));
FCEU.pause();
end;
]] gui.drawbox(x1,y1,x2,y2,color);
end;
end;
-- Draws a filled box from x1, y1 to x2, y2 (warning: can be slow if drawing large boxes)
function filledbox(x1,y1,x2,y2,color)
for i = 0, math.abs(y1 - y2) do
line(x1,y1 + i,x2,y1 + i,color);
end;
end;
-- Draws a life-bar.
-- x, y: position of top-right
-- sx, sy: width and height of ACTUAL BAR (0 is the smallest height (1px))
-- a1, a2: Amounts (a1/a2*100 = % of bar filled)
-- oncolor, offcolor: "bar", "background"
-- noborder: set to "true" if you just want a black outline without the white
function lifebar(x, y, sx, sy, a1, a2, oncolor, offcolor, outerborder, innerborder)
-- this function will have the effect of drawing an HP bar
-- keep in mind xs and ys are 2px larger to account for borders
x1 = x;
x2 = x + sx + 4;
y1 = y;
y2 = y + sy + 4;
w = math.floor(a1 / math.max(1, a1, a2) * sx);
if not a2 then w = 0 end;
outer = outerborder;
inner = innerborder;
if (outer == true or outer == false) and (inner == nil) then
-- legacy
outer = nil;
inner = "#000000";
elseif outer == nil and inner == nil then
outer = "#000000";
inner = "#ffffff";
elseif inner == nil then
inner = "#ffffff";
end;
if (inner) then
box(x1 + 1, y1 + 1, x2 - 1, y2 - 1, inner);
end;
if (outer) then
box(x1 , y1 , x2 , y2 , outer);
end;
if (w < sx) then
filledbox(x1 + w + 2, y1 + 2, x2 - 2, y2 - 2, offcolor);
end;
if (w > 0) then
filledbox(x1 + 2, y1 + 2, x1 + 2 + w, y2 - 2, oncolor);
end;
end;
function graph(x, y, sx, sy, minx, miny, maxx, maxy, xval, yval, color, border, filled)
if (filled ~= nil) then
filledbox(x + 1, y + 1, x+sx, y+sy, "#000000");
end;
if (border ~= nil) then
box(x, y, x+sx+1, y+sy+1, color);
end;
xp = (xval - minx) / (maxx - minx) * sx;
yp = (yval - miny) / (maxy - miny) * sy;
line(x + 1 , yp + y + 1, x + sx + 1, yp + y + 1, color);
line(xp + x + 1, y + 1 , xp + x + 1, y + sy + 1, color);
return true;
end;
-- Bisqwit's clone table feature.
table.clone = function(table)
local res = {}
for k,v in pairs(table)do
res[k]=v
end
return res
end
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spairs = function (t, f)
local a = {}
for n in pairs(t) do table.insert(a, n) end
table.sort(a, f)
local i = 0 -- iterator variable
local iter = function () -- iterator function
i = i + 1
if a[i] == nil then return nil
else return a[i], t[a[i]]
end
end
return iter
end
-- ****************************************************************************
-- * hitbox( coords1, coords2, con, coff )
-- * Checks if any point of coords1 is within coords2.
-- * con/coff determine what colors of box to draw.
-- ****************************************************************************
function hitbox(b1x1, b1y1, b1x2, b1y2, b2x1, b2y1, b2x2, b2y2, con, coff)
if not b1x1 then
text(0, 8, "ERROR!!!!");
return;
end;
local noboxes = false;
if con == nil and coff == nil then
noboxes = true;
else
if coff == nil then
coff = "#00ff00"
end;
if con == nil then
con = "#dd0000";
end;
if coff == nil then
coff = "#00ff00"
end;
end;
boxes = {{
x = {b1x1, b1x2},
y = {b1y1, b1y2},
}, {
x = {b2x1, b2x2},
y = {b2y1, b2y2},
}};
hit = false;
for xc = 1, 2 do
for yc = 1, 2 do
if (boxes[1]['x'][xc] >= boxes[2]['x'][1]) and
(boxes[1]['y'][yc] >= boxes[2]['y'][1]) and
(boxes[1]['x'][xc] <= boxes[2]['x'][2]) and
(boxes[1]['y'][yc] <= boxes[2]['y'][2]) then
hit = true;
-- TODO: make this break out of the for loop? might not be worth it
end;
end;
end;
if hit == true then
if not noboxes then box(b2x1, b2y1, b2x2, b2y2, con); end;
return true;
else
if not noboxes then box(b2x1, b2y1, b2x2, b2y2, coff); end;
return false;
end;
return true;
end;
function x_requires(required)
-- Sanity check. If they require a newer version, let them know.
timer = 1;
if x_func_version < required then
while (true) do
timer = timer + 1;
for i = 0, 32 do
box( 6, 28 + i, 250, 92 - i, "#000000");
end;
text( 10, 32, string.format("This Lua script requires version %02d or greater.", required));
text( 43, 42, string.format("Your x_functions.lua is version %02d.", x_func_version));
text( 29, 58, "Please check for an updated version at");
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text( 14, 69, "http://xkeeper.shacknet.nu:5/");
text(114, 78, "emu/nes/lua/x_functions.lua");
warningboxcolor = string.format("%02X", math.floor(math.abs(30 - math.fmod(timer, 60)) / 30 * 0xFF));
box(7, 29, 249, 91, "#ff" .. warningboxcolor .. warningboxcolor);
FCEU.frameadvance();
end;
end;
end;