2D Array within a Type

BlitzMax Forums/BlitzMax Beginners Area/2D Array within a Type

Ogg77777

(Posted 2005) [#1]

How do you create a 2D Array within a type, since you do not dimension the array as in BlitzPlus

Type Grid
Field GridNumber:Int
Field GridSector:Int
Field GridImage:TImage
End Type

The GridImage field will hold a graphic image used with a for loop to draw the grid. This should be done without the use of TLists as I will need to access an element of the GridNumber without looping through the list.

Perturbatio

(Posted 2005) [#2]

Using a normal 2D array:

Type TGrid
	Field coords:Int[10,10]
End Type

Local myGrid:TGrid = New TGrid

For Local X = 0 To 9
	For Local Y = 0 To 9
		myGrid.coords[X,Y] = X+Y
	Next
Next

For Local A = 0 To 9
	For Local B = 0 To 9
		Print myGrid.coords[A,B]
	Next
Next

Multidimensional arrays cannot be resized.
See the BlitzWiki for more info.

Ogg77777

(Posted 2005) [#3]

Can the image (that is the reference to the image) be loaded into the type field (GridImage) that is a 2D array so that the grid can be drawn using
For x = 0 to 9
For y = 0 to 9
Print myGrid.GridImage(x, y), x*32, y*32
next
next

Perturbatio

(Posted 2005) [#4]

it *could* but unless they're all unique images, you'd be better having an array of ints that refer to the images.

i.e.:

Global images:TImage[5]
for Local a = 0 to 4 
	images[a]:TImage = LoadImage("tile"+a+".png") 'load tile0.png, tile1.png, tile2.png etc
Next
Type TGrid
	Field coords:Int[10,10]
End Type
Local myGrid:TGrid = New TGrid
myGrid[0,1] = 2 'will use tile2.png

For Local X = 0 To 9
	For Local Y = 0 To 9
		DrawImage images[myGrid.coords[X,Y]], X*32, y*32
	Next
Next

Ogg77777

(Posted 2005) [#5]

Thanks Perturbatio, your help in this matter is greatly appreciated.

Perturbatio

(Posted 2005) [#6]

Thanks Perturbatio, your help in this matter is greatly appreciated.

np :)