-- This lua script creates a totally random generated space station for the orxonox computer game!



-- This function creates a randomly generated space station.
-- The first argument ranSeed, must be false, or a positive Integer, if it is false your space station is always chosen randomly, if you give an integer,
--	your space station will be generated randomly, but once you have the space station it will be the same.
-- The argument xLen defines how large the space station will be into the x-direction.
-- The argument xVar defines how much the space station will vary at the ends in x-direction, this is so that the station is no cube.
-- The argument yLen is the same as xLen, but for the y-direction.
-- The argument yVar is the same as xLen, but for the y-direction.
-- The argument zLen is the same as xLen, but for the z-direction.
-- The argument zVar is the same as xLen, but for the z-direction.
-- The argument givenScale scales the station proportionally in all directions.
function createSpaceStationPar(ranSeed, xLen, xVar, yLen, yVar, zLen, zVar, givenScale)



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-- This prints xml code, which creates a MovableEntity, which I need to attach all the parts of the space station.
print("<MovableEntity scale=1 position=\"0,0,0\" >")
-- End create Movable Entity.
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-- Create a randomseed, so that the math.random() function is actually random.
if ranSeed == false then
	math.randomseed(os.time())
else
	math.randomseed(ranSeed)
end
-- End create randomseed.
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-- Here you can define some global variables, with which you can modify the space station.

-- Define the maximal size of the space station, this is actually just for the grid, be sure that this value is big enough.
sSSize=30

--if xLen>=yLen and xLen>=zLen then
--	sSSize=xLen+20
--elseif yLen>=xLen and yLen>=zLen then
--	sSSize=yLen+20
--elseif zLen>=xLen and zLen>=yLen then
--	sSSize=zLen+20
--end

-- Define how many parts the space station has, this value has to be exact, so be sure to increment it if you're adding a new part.
sSParts=9
-- Define how many body parts the space station has, this value has to be exact. Body part means a part, which has connections at least in two directions.
sSBodyParts=3
-- Define how many side parts for the left side you have.
leftSideParts=1
-- Define how many side parts for the right side you have.
rightSideParts=1
-- Define how many top parts you have.
topParts=2
-- Define how many connection parts you have.
connParts=1
-- Define the maximal dimension of a single part, be sure this value is big enough, better it's too big, it's only a matter of efficiency.
pDim=6
-- Define the length in x-direction of the space station which will be occupied by bodyparts.
xBPLength=xLen
-- Define the variation of the edges of your bodyparts in the x-direction.
xBPVar=xVar
-- Define the length in y-direction of the space station which will be occupied by bodyparts.
yBPLength=yLen
-- Define the variation of the edges of your bodyparts in the y-direction.
yBPVar=yVar
-- Define the length in the z-direction of the space station which will be occupied by bodyparts.
zBPLength=zLen
-- Define the variation of the edges of your bodyparts in the z-direction.
zBPVar=zVar
-- Define the scale of the space station.
sSScale=givenScale
-- Define the griddimension, be sure this value matches the size of a single space station part plus the size of a connection part, which means your parts must be:
--	integer*(gridDim-connectionSize), then integer tells you how many griddimensions your part is.
gridDim=2.25
-- End define global parameters.
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-- This creates a 4-dimensional grid, which tells us if there is a part or not, and in which direction it has connections.
-- The parameters x,y,z are the axis of the space station, which iterate to sSSize, the maximal size of the space station.
-- The griddimension, this word I will use later, means that the distance of a point to the next point is gridDim in the game, so the absolute x-axis is x*gridDim*sSScale,
--	and so on for the other dimensions y and z.
-- grid[x][y][z][0] contains 0 if there is no part at the position (x,y,z), otherwise 1.
-- grid[x][y][z][1] contains 0 if there is no connection from (x,y,z) in x-direction, "+" if there is one in the positive x-direction,
--	"-" if there is one in the negative x-direction, "+-" if there are in both x-directions.
-- grid[x][y][z][2] contains 0 if there is no connection from (x,y,z) in y-direction, "+" if there is one in the positive y-direction,
--	"-" if there is one in the negative y-direction, "+-" if there are in both y-directions.
-- grid[x][y][z][3] contains 0 if there is no connection from (x,y,z) in z-direction, "+" if there is one in the positive z-direction,
--	"-" if there is one in the negative z-direction, "+-" if there are in both z-directions.
grid = {}
for x=-math.floor(sSSize/2),math.floor(sSSize/2) do
	grid[x] = {}
	for y=-math.floor(sSSize/2),math.floor(sSSize/2) do
		grid[x][y]= {}
		for z=-math.floor(sSSize/2),math.floor(sSSize/2) do
			grid[x][y][z]={}
			for i=0,3 do
				grid[x][y][z][i]=0
			end
		end
	end
end
-- End create 4-dim grid.
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-- This creates an array which stores all the parts, it's size is depending on the global values pDim and sSParts.
-- The first parameter i, tells us how many parts fit into the array, so it iterates from 1 to sSParts, each part has his own value i.
-- The second, third and fourth parameters are the relative coordinates of the part, you have to start at (0,0,0) and be sure you fill the array into the right direction.
--	A short example: your part is 2 griddimensions long and you place it in the game, that the relative coordinate point is at (0,0,0) and the part lies in the positive
--	z-axis, then you have to use the coordinate point (0,0,1).
-- The fifth parameter is an array with size 4, at index=0, you have to set 1 if your part covers the gridpoint at (x,y,z), otherwise 0.
--	At index=1,2,3 you define the possible connection directions (1 for x, 2 for y and 3 for z), be sure to use the notation from above (0, "+-", "+", "-").
bodyParts={}
for i=1,sSParts do
	bodyParts[i]={}
	for x=-math.floor(pDim/2),math.floor(pDim/2) do
		bodyParts[i][x]={}
		for y=-math.floor(pDim/2),math.floor(pDim/2) do
			bodyParts[i][x][y]={}
			for z=-math.floor(pDim/2),math.floor(pDim/2) do
				bodyParts[i][x][y][z]={}
				for k=0,3 do
					bodyParts[i][x][y][z][k]=0
				end
			end
		end
	end
	-- This contains the name of the mesh file.
	bodyParts[i][0][0][0][4]=""
	-- This contains the first possible rotation of your part, pitch=... yaw=... roll=... .
	bodyParts[i][0][0][0][5]=""
	-- This contains the second possible rotation of your part, pitch=... yaw=... roll=... .
	bodyParts[i][0][0][0][6]=""
	-- This contains the third possible rotation of your part, pitch=... yaw=... roll=... .
	bodyParts[i][0][0][0][7]=""
	-- Contains the movement rotation, rotationaxis=... rotationrate=... .
	bodyParts[i][0][0][0][8]=""
	-- Contains the attachment, if your part has an attachment, e.g. <ParticleEmitter .../>.
	bodyParts[i][0][0][0][9]=""
end
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------



----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-- Here you can add a part to the space station, there are some examples here and how to describe your part is written above in the commentary.

-- The part must be inserted so, that the center of reference is at position (0,0,0).
-- At position bodyParts[i][0][0][0][4] you have to put the mesh name of your part.
-- At bodyParts[i][0][0][0][5] you can rotate your part, with pitch=angle, yaw=angle or roll=angle (x,y or z). Positive angle means in screw direction.
-- At bodyParts[i][0][0][0][6] you have another possibility to rotate your part in a different way, e.g. for left and right side parts.
-- At bodyParts[i][0][0][0][7] you have a third possibility to rotate your part, e.g. connection parts must be rotated into 3 different ways.
-- At bodyParts[i][0][0][0][8] you can rotate your part around his own axis, with rotationaxis="x,y,z" rotationrate=number.
-- At bodyParts[i][0][0][0][9] you can attach something to your model, e.g. <ParticleEmitter .../>.

-- Insert the CuboidBody, which is only one griddimension and can have connections in every direction.
bodyParts[1][0][0][0][4]="CuboidBody.mesh"

bodyParts[1][0][0][0][0]=1
bodyParts[1][0][0][0][1]="+-"
bodyParts[1][0][0][0][2]="+-"
bodyParts[1][0][0][0][3]="+-"
-- End insert CuboidBody.

-- Insert the DoubleCuboidBody, which is two griddimensions long, and one wide and high and can have connections in every direction except in the middle.
bodyParts[2][0][0][0][4]="DoubleCuboidBody.mesh"
bodyParts[2][0][0][0][5]="pitch=-90"

bodyParts[2][0][0][0][0]=1
bodyParts[2][0][0][0][1]="+-"
bodyParts[2][0][0][0][2]="+-"
bodyParts[2][0][0][0][3]="-"

bodyParts[2][0][0][1][0]=1
bodyParts[2][0][0][1][1]="+-"
bodyParts[2][0][0][1][2]="+-"
bodyParts[2][0][0][1][3]="+"
-- End insert DoubleCuboidBody.

-- Insert the CuboidConnectionBody, it is three griddimensions long and one wide and high and can have only connections at griddimension 1
--	(except the side in direction of griddimension 2) and griddimension 3 (except the side in direction of griddimension 2).
bodyParts[3][0][0][0][4]="CuboidConnectionBody.mesh"
bodyParts[3][0][0][0][5]="pitch=-90"

bodyParts[3][0][0][0][0]=1
bodyParts[3][0][0][0][1]="+-"
bodyParts[3][0][0][0][2]="+-"
bodyParts[3][0][0][0][3]="-"

bodyParts[3][0][0][1][0]=1

bodyParts[3][0][0][2][0]=1
bodyParts[3][0][0][2][1]="+-"
bodyParts[3][0][0][2][2]="+-"
bodyParts[3][0][0][2][3]="+"
-- End insert CuboidConnectionBody.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-- Insert the Thruster, which is one griddimension long, wide and high, it can only have a connection into the negative z-direction.
-- If you're space station has no thrusters, be sure to set thrusterIndex=false, but maybe you can use this also for other parts,
--	see section Attach thrusters to learn how thrusers are attached at your space station.
thrusterIndex=4
bodyParts[thrusterIndex][0][0][0][4]="Thruster.mesh"
bodyParts[thrusterIndex][0][0][0][5]="pitch=-90"
bodyParts[thrusterIndex][0][0][0][9]="<ParticleEmitter position=\"0,0,0\" source=\"Orxonox/fire3\" />"

bodyParts[thrusterIndex][0][0][0][0]=1
bodyParts[thrusterIndex][0][0][0][3]="-"
--End insert the Thruster.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-- Insert the Cockpit. If your space station has no cockpit, be sure to set cockpitIndex=false.
-- The Cockpit is 3 x-griddimensions long, 3 y-griddimensions and 2 z-griddimensions, it can only have a connection in the positive z-direction.
cockpitIndex=5
bodyParts[cockpitIndex][0][0][0][4]="SemiCircleCockpit.mesh"
bodyParts[cockpitIndex][0][0][0][5]="pitch=-90 yaw=180"

bodyParts[cockpitIndex][0][0][0][0]=1
bodyParts[cockpitIndex][0][0][0][3]="+"

bodyParts[cockpitIndex][-1][0][0][0]=1
bodyParts[cockpitIndex][1][0][0][0]=1
bodyParts[cockpitIndex][0][-1][0][0]=1
bodyParts[cockpitIndex][0][1][0][0]=1
bodyParts[cockpitIndex][-1][-1][0][0]=1
bodyParts[cockpitIndex][1][-1][0][0]=1
bodyParts[cockpitIndex][-1][1][0][0]=1
bodyParts[cockpitIndex][1][1][0][0]=1
bodyParts[cockpitIndex][0][0][-1][0]=1
bodyParts[cockpitIndex][-1][0][-1][0]=1
bodyParts[cockpitIndex][1][0][-1][0]=1
bodyParts[cockpitIndex][0][-1][-1][0]=1
bodyParts[cockpitIndex][0][1][-1][0]=1
bodyParts[cockpitIndex][-1][-1][-1][0]=1
bodyParts[cockpitIndex][1][-1][-1][0]=1
bodyParts[cockpitIndex][-1][1][-1][0]=1
bodyParts[cockpitIndex][1][1][-1][0]=1
-- End insert Cockpit.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-- Insert the side parts.
-- If your space station has no left side parts, be sure to set leftsidePartsIndex[0]=false.
-- If your space station has no right side parts, be sure to set rightsidePartsIndex[0]=false.
leftSidePartsIndex={}
leftSidePartsIndex[0]=""
rightSidePartsIndex={}
rightSidePartsIndex[0]=""

-- Insert the solar panel, which i wanna use as left and right side part.
leftSidePartsIndex[1]=6
rightSidePartsIndex[1]=leftSidePartsIndex[1]
bodyParts[leftSidePartsIndex[1]][0][0][0][4]="SolarPanel.mesh"
bodyParts[leftSidePartsIndex[1]][0][0][0][5]="roll=90 pitch="..math.random(0,180)
bodyParts[rightSidePartsIndex[1]][0][0][0][6]="roll=-90 pitch="..math.random(0,180)
bodyParts[rightSidePartsIndex[1]][0][0][0][8]="rotationaxis=\"1,0,0\" rotationrate=5"
bodyParts[leftSidePartsIndex[1]][0][0][0][0]=1
bodyParts[leftSidePartsIndex[1]][0][0][1][0]=1
bodyParts[leftSidePartsIndex[1]][0][0][-1][0]=1
bodyParts[leftSidePartsIndex[1]][0][1][0][0]=1
bodyParts[leftSidePartsIndex[1]][0][1][1][0]=1
bodyParts[leftSidePartsIndex[1]][0][1][-1][0]=1
bodyParts[leftSidePartsIndex[1]][0][-1][0][0]=1
bodyParts[leftSidePartsIndex[1]][0][-1][1][0]=1
bodyParts[leftSidePartsIndex[1]][0][-1][-1][0]=1
-- End insert solar panel.

-- End insert side parts.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-- Insert the top parts.
-- If you have no top parts, be sure to set topPartsIndex[0]=false
topPartsIndex={}
topPartsIndex[0]=""

-- Insert the CuboidLandingZone.
topPartsIndex[1]=7
bodyParts[topPartsIndex[1]][0][0][0][4]="CuboidLandingZone.mesh"
bodyParts[topPartsIndex[1]][0][0][0][5]="pitch=-90"

bodyParts[topPartsIndex[1]][0][0][0][0]=1
bodyParts[topPartsIndex[1]][0][0][0][2]="+-"
bodyParts[topPartsIndex[1]][1][0][0][0]=1
bodyParts[topPartsIndex[1]][-1][0][0][0]=1
bodyParts[topPartsIndex[1]][0][0][1][0]=1
bodyParts[topPartsIndex[1]][1][0][1][0]=1
bodyParts[topPartsIndex[1]][-1][0][1][0]=1
bodyParts[topPartsIndex[1]][0][0][2][0]=1
bodyParts[topPartsIndex[1]][1][0][2][0]=1
bodyParts[topPartsIndex[1]][-1][0][2][0]=1
bodyParts[topPartsIndex[1]][0][0][3][0]=1
bodyParts[topPartsIndex[1]][1][0][3][0]=1
bodyParts[topPartsIndex[1]][-1][0][3][0]=1
-- End insert the CuboidLanding Zone.

-- Insert the SatelliteDish.
topPartsIndex[2]=8
bodyParts[topPartsIndex[2]][0][0][0][4]="SatelliteDish.mesh"
bodyParts[topPartsIndex[2]][0][0][0][5]="pitch=-90"
bodyParts[topPartsIndex[2]][0][0][0][8]="rotationaxis=\"0,1,0\" rotationrate=5"
bodyParts[topPartsIndex[2]][0][0][0][0]=1
bodyParts[topPartsIndex[2]][0][0][1][0]=1
bodyParts[topPartsIndex[2]][0][0][-1][0]=1
bodyParts[topPartsIndex[2]][1][0][0][0]=1
bodyParts[topPartsIndex[2]][1][0][1][0]=1
bodyParts[topPartsIndex[2]][1][0][-1][0]=1
bodyParts[topPartsIndex[2]][-1][0][0][0]=1
bodyParts[topPartsIndex[2]][-1][0][1][0]=1
bodyParts[topPartsIndex[2]][-1][0][-1][0]=1
-- End insert the SatelliteDish.

-- End insert the top parts.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-- Insert the connectionparts, which are used to connect all the bodyparts.
-- If you're spacestation has no connectionparts, be sure to set connPartsIndex[0]=false.
connPartsIndex={}
connPartsIndex[0]=""

-- Insert the CuboidConnection.
connPartsIndex[1]=9
bodyParts[connPartsIndex[1]][0][0][0][4]="CuboidConnection.mesh"
bodyParts[connPartsIndex[1]][0][0][0][5]="roll=90"
bodyParts[connPartsIndex[1]][0][0][0][6]=""
bodyParts[connPartsIndex[1]][0][0][0][7]="pitch=90"
-- End insert the CuboidConnection.

-- End insert the connectionparts.

-- End create array bodyParts.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------



----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-- Here I define some functions which I will use later.

--This function actualizes the grid, which I have to call always after I have added a new part to the space station.
function actualizeGrid(Index,x,y,z)
	for i=math.floor(-pDim/2),math.floor(pDim/2) do
		for j=math.floor(-pDim/2),math.floor(pDim/2) do
			for k=math.floor(-pDim/2),math.floor(pDim/2) do
				if bodyParts[Index][i][j][k][0] == 1 then
					for l=0,3 do
						grid[x+i][y+j][z+k][l] = bodyParts[Index][i][j][k][l]
					end
				end
			end
		end
	end
end
-- End actualizeGrid.

-- This function checks wheter a given parts fits at that position or not.
-- If the part fits there it returns 1, otherwise 0.
function checkPart(Index,x,y,z)
	check=1
	for i=math.floor(-pDim/2),math.floor(pDim/2) do
		for j=math.floor(-pDim/2),math.floor(pDim/2) do
			for k=math.floor(-pDim/2),math.floor(pDim/2) do
				-- If the part occupies the position (i,j,k), the grid must be empty there ((x+i, y+j, z+k)==0), if not, check is zero,
				--	which means that the part doesn't fit there.
				if bodyParts[Index][i][j][k][0] == 1 and grid[x+i][y+j][z+k][0] == 1 then
					check=0
				end
			end
		end
	end
	return check
end
-- End checkPart function.

-- This function prints the model with tempPartIndex in the bodyParts array at position lx,ly,lz.
-- If you need to rotate the model around his own axis, then you have to set movEntity true and define the details of the rotation in
--	bodyParts[tempPartIndex][0][0][0][8].
-- If your model needs to be rotated like bodyParts[tempPartIndex][0][0][0][5], then side must be 1, for bodyParts[tempPartIndex][0][0][0][6] side must be 2,
--	for bodyParts[tempPartIndex][0][0][0][7] side must be 3.
function printModel(lx,ly,lz,tempPartIndex,movEntity,side)
	if movEntity == true then
		print("<MovableEntity scale=1 position=\"") print(lx*gridDim*sSScale) print(",") print(ly*gridDim*sSScale) print(",") print(lz*gridDim*sSScale) print("\" ")
		print(bodyParts[tempPartIndex][0][0][0][8]) print(">")
		print("<attached>")
		lx=0 ly=0 lz=0
	end

	print("<Model position=\"") print(lx*gridDim*sSScale) print(",") print(ly*gridDim*sSScale) print(",") print(lz*gridDim*sSScale)
	print("\" scale=") print(sSScale) print(" mesh= \"") print(bodyParts[tempPartIndex][0][0][0][4]) print("\"")

		if side == 1 then
			print(bodyParts[tempPartIndex][0][0][0][5]) print(">")
		elseif side == 2 then
			print(bodyParts[tempPartIndex][0][0][0][6]) print(">")
		elseif side == 3 then
			print(bodyParts[tempPartIndex][0][0][0][7]) print(">")
		end

		print("<attached>")
			print(bodyParts[tempPartIndex][0][0][0][9])
		print("</attached>")

	print("</Model>")

	if movEntity == true then
		print("</attached>")
		print("</MovableEntity>")
	end
end
-- End function printModel()

-- End define functions.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------



----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-- This is xml code, which means now we attach some parts to the MovableEntity.
print("<attached>")
-- End attach to the MovableEntity.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------



----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-- Attach all bodyparts.
-- Define at which position in the x-direction you're space station will start. 
x=math.random(-math.floor(xBPLength/2),-math.floor(xBPLength/2)+xBPVar)
-- Define at which position in the x-direction you're space station will end.
xMax=math.random(math.floor(xBPLength/2),math.floor(xBPLength/2)+xBPVar)
while x<xMax do
	-- The same for the y- and z-direction.
	y=math.random(-math.floor(yBPLength/2),-math.floor(yBPLength/2)+yBPVar)
	yMax=math.random(math.floor(yBPLength/2),math.floor(yBPLength/2)+yBPVar)
	while y<yMax do
		yMax=math.random(math.floor(yBPLength/2),math.floor(yBPLength/2)+yBPVar)
		z=math.random(-math.floor(zBPLength/2),-math.floor(zBPLength/2)+zBPVar)
		zMax=math.random(math.floor(zBPLength/2),math.floor(zBPLength/2)+zBPVar)
		while z<zMax do
			-- This loop choses a bodypart, which fits at position (x,y,z).
			-- If after the fifth time the part does still not fit we terminate the loop and set no part at postition (x,y,z).
			partSet=0
			counter=0
			while counter<5 and partSet==0 do
				-- This choses randomly a bodyPartIndex, which is the index used for the parts in the array bodyParts.
				tempBodyPartIndex=math.random(1,sSBodyParts)
				check=checkPart(tempBodyPartIndex,x,y,z)
				-- If check == 1, this means that the part fits there, so we put it there and break the while true loop, to go on.
				if check == 1 then
					-- This prints the chosen part at position (x*gridDim*sSScale,y*gridDim*sSScale,z*gridDim*sSScale).
					printModel(x,y,z,tempBodyPartIndex,false,1)
					-- This actualizes the grid array with the values of the array bodyParts at the position tempBodyPartIndex, which is our randomly chosen part.
					actualizeGrid(tempBodyPartIndex,x,y,z)
					partSet=1
				end
				counter=counter+1
			end
			z=z+1
		end
		y=y+1
	end
	x=x+1
end
-- End attach all bodyparts.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------



----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-- Attach thrusters, if there are some.
if thrusterIndex ~= false then
	-- To attach thrusters we start at (-sSSize/2,-sSSize/2,-sSSize/2+1) and iterate through x and y as start points and then through z,
	--	where we go as long as there are parts, at the first position where isn't a part we set our thruster.
	for x=math.floor(-sSSize/2),math.floor(sSSize/2) do
		for y=math.floor(-sSSize/2),math.floor(sSSize/2) do
			 for z=math.floor(-sSSize/2)+1,math.floor(sSSize/2) do
				if grid[x][y][z-1][0] == 1 and grid[x][y][z][0] == 0 then
					-- This prints the thruster.
					printModel(x,y,z,thrusterIndex,false,1)
					-- This actualizes the grid array with the values of the array bodyParts at the position thrusterIndex.
					actualizeGrid(thrusterIndex,x,y,z)
					-- This breaks out of the for z=-sSSize/2+1,sSSize/2 loop, because we have set one thruster and for the z-axis that is all we want.
					break
				end
			end
		end
	end
end
-- End attach Thrusters.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------



----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-- Attach cockpit, if there is one.
function setCockpit()
	if grid[x][y][z][0] == 0 and grid[x][y][z+1][0] == 1 then
		-- This checks whether the cockpits fits at that position or not.
		check=checkPart(cockpitIndex,x,y,z)
		if check == 1 then
			-- This prints the cockpit.
			printModel(x,y,z,cockpitIndex,false,1)
			cockpitSet=1
			-- This actualizes the grid array with the values of the array bodyParts at the position cockpitIndex.
			actualizeGrid(cockpitIndex,x,y,z)
		end
	end
end

if cockpitIndex ~= false then
	cockpitSet=0
	z=math.floor(-sSSize/2)
	while z<=math.floor(sSSize/2)-1 and cockpitSet==0 do
		round=0
		while round<=math.floor(sSSize/2)-1 and cockpitSet==0 do
			y=round
			x=-round
			while x<=round and cockpitSet==0 do
				setCockpit()
				x=x+1
			end
			while y>=-round and cockpitSet==0 do
				setCockpit()
				y=y-1
			end
			while x>-round and cockpitSet==0 do
				setCockpit()
				x=x-1
			end
			while y<=round and cockpitSet==0 do
				setCockpit()
				y=y+1
			end
			round=round+1
		end
		z=z+1
	end
end
-- End attach cockpit.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------



----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-- Attach parts on the left side of the space station.
function setLeftSidePart()
	if grid[x][y][z][0] == 0 and grid[x+1][y][z][0] == 1 and (grid[x+1][y][z][1] == "+-" or grid[x+1][y][z][1] == "-") then
		-- This checks whether the parts fits at position x,y,z or not.
		check=checkPart(tempSidePartIndex,x,y,z)
		if check == 1 then
			-- This prints the part.
			printModel(x,y,z,tempSidePartIndex,true,1)
			partSet=1
			-- This actualizes the grid array with the values of the array bodyParts at the position tempSidePartIndex.
			actualizeGrid(tempSidePartIndex,x,y,z)
		end

	end
end

if leftSidePartsIndex[0] ~= false then
	for sPC=1,leftSideParts do
		tempSidePartIndex = leftSidePartsIndex[math.random(1,leftSideParts)]
		partSet=0
		x=math.floor(-sSSize/2)
		while x<=math.floor(sSSize/2)-1 and partSet==0 do
			round=0
			while round<=math.floor(sSSize/2)-1 and partSet==0 do
				y=round
				z=-round
				while z<=round and partSet==0 do
					setLeftSidePart()
					z=z+1
				end
				while y>=-round and partSet==0 do
					setLeftSidePart()
					y=y-1
				end
				while z>=-round and partSet==0 do
					setLeftSidePart()
					z=z-1
				end
				while y<=round and partSet==0 do
					setLeftSidePart()
					y=y+1
				end
				round=round+1
			end
			x=x+1
		end
	end
end
-- End attach left side parts.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------



----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-- Attach parts on the right side of the space station.
function setRightSidePart()
	if grid[x][y][z][0] == 0 and grid[x-1][y][z][0] == 1 and (grid[x-1][y][z][1] == "+-" or grid[x-1][y][z][1] == "+") then
		-- This checks whether the part fits or not.
		check=checkPart(tempSidePartIndex,x,y,z)
		if check == 1 then
			-- This prints the part.
			printModel(x,y,z,tempSidePartIndex,true,2)
			partSet=1
			-- This actualizes the grid array with the values of the array bodyParts at the position tempSidePartIndex.
			actualizeGrid(tempSidePartIndex,x,y,z)
		end

	end
end

if rightSidePartsIndex[0] ~= false then
	for sPC=1,rightSideParts do
		tempSidePartIndex = rightSidePartsIndex[math.random(1,rightSideParts)]
		partSet=0
		x=math.floor(sSSize/2)
		while x>=math.floor(-sSSize/2)+1 and partSet==0 do
			round=0
			while round<=math.floor(sSSize/2)-1 and partSet==0 do
				y=round
				z=-round
				while z<=round and partSet==0 do
					setRightSidePart()
					z=z+1
				end
				while y>=-round and partSet==0 do
					setRightSidePart()
					y=y-1
				end
				while z>=-round and partSet==0 do
					setRightSidePart()
					z=z-1
				end
				while y<=round and partSet==0 do
					setRightSidePart()
					y=y+1
				end
				round=round+1
			end
			x=x-1
		end
	end
end
-- End attach right side parts.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------



----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-- Attach parts on top of the space station.
function setTopPart()
	if grid[x][y][z][0] == 0 and grid[x][y-1][z][0] == 1 and (grid[x][y-1][z][2] == "+-" or grid[x][y-1][z][2] == "+") then
		-- This checks whether the part fits or not.
		check=checkPart(tempTopPartIndex,x,y,z)
		if check == 1 then
			-- This prints the part.
			printModel(x,y,z,tempTopPartIndex,true,1)
			partSet=1
			-- This actualizes the grid array with the values of the array bodyParts at the position tempTopPartIndex.
			actualizeGrid(tempTopPartIndex,x,y,z)
		end
	end
end

if topPartsIndex[0] ~= false then
	for sPC=1,topParts do
		tempTopPartIndex = topPartsIndex[sPC]
		partSet=0
		y=math.floor(sSSize/2)
		while y>=math.floor(-sSSize/2)+1 and partSet==0 do
			round=0
			while round<=math.floor(sSSize/2)-1 and partSet==0 do
				x=round
				z=-round
				while z<=round and partSet==0 do
					setTopPart()
					z=z+1
				end
				while x>=-round and partSet==0 do
					setTopPart()
					x=x-1
				end
				while z>=-round and partSet==0 do
					setTopPart()
					z=z-1
				end
				while x<=round and partSet==0 do
					setTopPart()
					x=x+1
				end
				round=round+1
			end
			y=y-1
		end
	end
end
-- End attach top parts.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------



----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-- Attach all connectionparts.
-- This iterates through the whole grid array.
if connPartsIndex[0] ~= false then
	for x=math.floor(-sSSize/2),math.floor(sSSize/2)-1 do
		for y=math.floor(-sSSize/2),math.floor(sSSize/2)-1 do
			for z=math.floor(-sSSize/2),math.floor(sSSize/2)-1 do
				tempConnPartIndex=connPartsIndex[math.random(1,connParts)]
				-- This checks whether there has to be a connection part between (x,y,z) and (x+1,y,z) or not. First it checks if there is a part at (x,y,z) and
				--	then it checks if that part can have a connection into the positive x-direction, if it can, it checks if there is a part at (x+1,y,z) and
				--	if that part can have a connection into the negative x-direction, if both can, it prints the xml code to set a connection part.
				if grid[x][y][z][0]==1 and (grid[x][y][z][1]=="+" or grid[x][y][z][1]=="+-") and grid[x+1][y][z][0]==1 and (grid[x+1][y][z][1]=="-" or grid[x+1][y][z][1]=="+-") then
					-- This prints the connection part, the +1/2 is because the connection is set exactly in the middle of two gridpoints.
					printModel(x+1/2,y,z,tempConnPartIndex,false,1)
				end
				-- The same as in the x-direction, but for the y-direction.
				if grid[x][y][z][0]==1 and ( grid[x][y][z][2]=="+" or grid[x][y][z][2]=="+-" ) and grid[x][y+1][z][0]==1 and ( grid[x][y+1][z][2]=="-" or grid[x][y+1][z][2]=="+-" ) then
					printModel(x,y+1/2,z,tempConnPartIndex,false,2)
				end
				-- The same as in the x-direction, but for the z-direction.
				if grid[x][y][z][0]==1 and ( grid[x][y][z][3]=="+" or grid[x][y][z][3]=="+-" ) and grid[x][y][z+1][0]==1 and ( grid[x][y][z+1][3]=="-" or grid[x][y][z+1][3]=="+-" ) then
					printModel(x,y,z+1/2,tempConnPartIndex,false,3)
				end
			end
		end
	end
end
-- End attach all connectionparts.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------



----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-- This is xml code, which ends the attachment and the MovableEntity.
print("</attached>")
print("</MovableEntity>")
-- End ends attachment and MovableEntity.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------



-- End the createSpaceStation function.
end


-- This function is for the lazy guys, which do not care how the space station looks like, so I use some good standard values.
function createSpaceStation()
	createSpaceStationPar(false,4,1,2,1,6,1,100)
end