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ldd-CC/tron
2018-11-13 15:39:29 -05:00

128 lines
2.8 KiB
Plaintext

local scr_x, scr_y = term.getSize()
local grid = {
x1 = -80,
y1 = -80,
x2 = 80,
y2 = 80,
border = "#",
voidcol = "f",
forecol = "8",
backcol = "7",
edgecol = "0"
}
local scrollX = 0
local scrollY = 0
local player = {
x = 0,
y = 0,
color = colors.blue
}
local gridFore = {
"+-------",
"| ",
"| ",
"| ",
"| "
}
local gridBack = {
"+------------",
"| ",
"| ",
"| ",
"| ",
"| ",
"| ",
"| "
}
for y = 1, #gridFore do
gridFore[y] = gridFore[y]:gsub("#","\127")
end
--draws grid and background at scroll 'x' and 'y'
local drawGrid = function(x, y)
x, y = math.floor(x + 0.5), math.floor(y + 0.5)
local bg = {{},{},{}}
local foreX, foreY
local backX, backY
local adjX, adjY
for sy = 1, scr_y do
bg[1][sy] = ""
bg[2][sy] = ""
bg[3][sy] = ""
for sx = 1, scr_x do
adjX = (sx - x)
adjY = (sy - y)
foreX = 1 + (sx - x) % #gridFore[1]
foreY = 1 + (sy - y) % #gridFore
backX = 1 + math.floor(sx - (x / 3)) % #gridBack[1]
backY = 1 + math.floor(sy - (y / 3)) % #gridBack
if adjX < grid.x1 or adjX > grid.x2 or adjY < grid.y1 or adjY > grid.y2 then
bg[1][sy] = bg[1][sy] .. " "
bg[2][sy] = bg[2][sy] .. grid.voidcol
bg[3][sy] = bg[3][sy] .. grid.voidcol
elseif adjX == grid.x1 or adjX == grid.x2 or adjY == grid.y1 or adjY == grid.y2 then
bg[1][sy] = bg[1][sy] .. grid.border
bg[2][sy] = bg[2][sy] .. grid.voidcol
bg[3][sy] = bg[3][sy] .. grid.edgecol
else
if gridFore[foreY]:sub(foreX,foreX) ~= " " then
bg[1][sy] = bg[1][sy] .. gridFore[foreY]:sub(foreX,foreX)
bg[2][sy] = bg[2][sy] .. grid.forecol
bg[3][sy] = bg[3][sy] .. grid.voidcol
elseif gridBack[backY]:sub(backX,backX) ~= " " then
bg[1][sy] = bg[1][sy] .. gridBack[backY]:sub(backX,backX)
bg[2][sy] = bg[2][sy] .. grid.backcol
bg[3][sy] = bg[3][sy] .. grid.voidcol
else
bg[1][sy] = bg[1][sy] .. " "
bg[2][sy] = bg[2][sy] .. grid.voidcol
bg[3][sy] = bg[3][sy] .. grid.voidcol
end
end
end
end
for sy = 1, scr_y do
term.setCursorPos(1,sy)
term.blit(bg[1][sy], bg[2][sy], bg[3][sy])
end
end
-- test background drawing
local evt
local keysDown = {}
local getInput = function()
while true do
evt = {os.pullEvent()}
if evt[1] == "key" then
keysDown[evt[2]] = true
elseif evt[1] == "key_up" then
keysDown[evt[2]] = false
end
end
end
local gridDemo = function()
while true do
if keysDown[keys.left] then
scrollX = scrollX + 1
end
if keysDown[keys.right] then
scrollX = scrollX - 1
end
if keysDown[keys.up] then
scrollY = scrollY + 1
end
if keysDown[keys.down] then
scrollY = scrollY - 1
end
drawGrid(scrollX, scrollY)
sleep(0.05)
end
end
parallel.waitForAny(getInput, gridDemo)