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[justatest]

i have make a code like these :
Blocks_Pos = {

["c0"] = {img=Image.load("x0.png"), y=0, x=1},
["c1"] = {img=Image.load("x1.png"), y=2, x=1},
["c2"] = {img=Image.load("x2.png"), y=0, x=0},
["c3"] = {img=Image.load("x3.png"), y=0, x=3},
["c4"] = {img=Image.load("x4.png"), y=2, x=0},
["c5"] = {img=Image.load("x5.png"), y=2, x=3},
["c6"] = {img=Image.load("x6.png"), y=3, x=1},
["c7"] = {img=Image.load("x7.png"), y=3, x=2},
["c8"] = {img=Image.load("x8.png"), y=4, x=0},
["c9"] = {img=Image.load("x9.png"), y=4, x=3}

}

for key in Blocks_Pos do
screen:blit(offsetx+Blocks_Pos[key].x*unit_width, offsety+Blocks_Pos[key].y*unit_height, Block_Pos[key].img)
end



but the visit of Block_Pos[key].img get the err msg as "attempt to index global `Block_Pos' (a nil value)"

so, if i DO want to make a table of image.load , what should i do ? i use luaplayerwindows .
thx guys !

[mrn]

are you filling your Block_Pos in the main routine outside any function?
Then it is Global. You should fill it before using it.

If first you try to use it inside a function without filling it before ...
ya, i think this is the prblm here..

[justatest]

thx . but seem this is not the problem .

cos i can visit the Block_Pos[key].x and Block_Pos[key].y , but while i change the define as these:

Blocks_Pos = {

{img=Image.load("x0.png"), y=0, x=1, w=2, h=2},
{img=Image.load("x1.png"), y=2, x=1, w=2, h=1},
{img=Image.load("x2.png"), y=0, x=0, w=1, h=2},
{img=Image.load("x3.png"), y=0, x=3, w=1, h=2},
{img=Image.load("x4.png"), y=2, x=0, w=1, h=2},
{img=Image.load("x5.png"), y=2, x=3, w=1, h=2},
{img=Image.load("x6.png"), y=3, x=1, w=1, h=1},
{img=Image.load("x7.png"), y=3, x=2, w=1, h=1},
{img=Image.load("x8.png"), y=4, x=0, w=1, h=1},
{img=Image.load("x9.png"), y=4, x=3, w=1, h=1}

}

all thing work . i think i need more work on lua . ;)

[nevyn]

Brackets mean that you index, or take a value out of, an array. This is not what you were trying to do; your code had syntax errors. Just removing the brackets would've worked:

[romero126]

Indexing is not the problem since index variables all the time.
try