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MacChuck/turtleSpikes.lua

Last active November 22, 2023 10:12
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turtleSpikes.lua
maxSize = 27
edgeGap = 2
midGap = 5
math.randomseed(os.time())
grid = {}
-- set up basic grid values
for x = 1,maxSize do
grid[x] = {}
for y = 1,maxSize do
if (x <= edgeGap) or (y <= edgeGap) or (x > maxSize-edgeGap) or (y > maxSize-edgeGap) then
grid[x][y] = math.random(0,2)
elseif (x <= midGap) or (y <= midGap) or (x > maxSize-midGap) or (y > maxSize-midGap) then
grid[x][y] = math.random(0,4)
else
len1 = math.random(0,11)
len2 = math.random(0,11)
if len1 < len2 then
grid[x][y] = len1
else
grid[x][y] = len2
end
end
end
end
-- create edging around longer spikes
for x = 1,maxSize do
for y = 1,maxSize do
if grid[x][y] >= 9 then
if grid[x-1][y] < (grid[x][y] - 2) then
grid[x-1][y] = math.random((grid[x][y]-5),(grid[x][y]-2))
end
if grid[x+1][y] < (grid[x][y] - 2) then
grid[x+1][y] = math.random((grid[x][y]-5),(grid[x][y]-2))
end
if grid[x][y-1] < (grid[x][y] - 2) then
grid[x][y-1] = math.random((grid[x][y]-5),(grid[x][y]-2))
end
if grid[x][y+1] < (grid[x][y] - 2) then
grid[x][y+1] = math.random((grid[x][y]-5),(grid[x][y]-2))
end
--[[
for xo = -1,1,1 do
for yo = -1,1,1 do
if grid[x+xo][y] < (grid[x][y] - 2) then
grid[x+xo][y] = math.random((grid[x][y]-5),(grid[x][y]-2))
elseif grid[x][y+yo] < (grid[x][y] - 2) then
grid[x][y+yo] = math.random((grid[x][y]-5),(grid[x][y]-2))
end
end
end
--]]
end
end
end
function invCheck()
empty = true
for i=1,16 do
if turtle.getItemCount(i) > 0 then
empty = false
break
end
end
if empty then
print("Waiting for blocks, press enter when refilled.")
read()
end
end
function selectBlock()
slot = math.random(16)
turtle.select(slot)
while turtle.getItemCount(slot) == 0 do
slot = slot + 1
if slot == 17 then slot = 1 end
turtle.select(slot)
end
end
function placeUp()
invCheck()
selectBlock()
turtle.placeUp()
end
function placeSpike(length)
if not turtle.detectUp() then -- don't start a spike where the island doesn't exist above
return false
elseif length == 0 then -- 0 length, do nothing
return false
else
for i = 1,length do
turtle.down()
placeUp()
end
return true
end
end
function displayGrid()
mon = peripheral.wrap("right")
mon.setTextScale(.5)
mon.clear()
for x=1,maxSize do
for y=1,maxSize do
os.sleep(.1)
mon.setTextColor(colors.white)
mon.setCursorPos(x*2,y)
if grid[x][y] == 11 then
mon.setTextColor(colors.red)
mon.write(".")
elseif grid[x][y] == 10 then
mon.setTextColor(colors.red)
mon.write("X")
else
if grid[x][y] == 9 then
mon.setTextColor(colors.red)
elseif grid[x][y] >= 6 then
mon.setTextColor(colors.orange)
elseif grid[x][y] <= 2 then
mon.setTextColor(colors.lightBlue)
end
mon.write(tostring(grid[x][y]))
end
end
end
end
function build()
for x=1,maxSize do
for y=1,maxSize do
length = grid[x][y]
if x%2 == 0 then -- turtle runs a zigzag, reverse Y on every other row
length = grid[x][maxSize-y+1]
end
placed = placeSpike(length)
turtle.forward()
if placed then
for i=1,length do
turtle.up()
end
end
end
if x%2 == 0 then
turtle.turnLeft()
turtle.forward()
turtle.turnLeft()
turtle.forward()
else
turtle.turnRight()
turtle.forward()
turtle.turnRight()
turtle.forward()
end
end
end
build()
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