digilines/util.lua
Auke Kok 7ecb29e87f Convert digilines to a mod (not modpack). (#32)
Digilines is probably used by most people in its entirety.

I've retained the ability to disable inventory, rtc, lightsensor and
LCD by the minetest settings "diglines_enable_rtc" etc.. If set to
"false", these components will not be loaded. It is assumed by default
that these are enabled.

In the conversion the digilines_lcd:lcd node was renamed to
digilines:lcd (same for all the other nodes). To retain backwards
compatibility I've provided aliases for each of these nodes.
2016-05-27 16:08:53 -07:00

68 lines
1.2 KiB
Lua

function digiline:addPosRule(p, r)
return {x = p.x + r.x, y = p.y + r.y, z = p.z + r.z}
end
function digiline:cmpPos(p1, p2)
return (p1.x == p2.x and p1.y == p2.y and p1.z == p2.z)
end
--Rules rotation Functions:
function digiline:rotate_rules_right(rules)
local nr={}
for i, rule in ipairs(rules) do
nr[i]={}
nr[i].z=rule.x
nr[i].x=-rule.z
nr[i].y=rule.y
end
return nr
end
function digiline:rotate_rules_left(rules)
local nr={}
for i, rule in ipairs(rules) do
nr[i]={}
nr[i].z=-rules[i].x
nr[i].x=rules[i].z
nr[i].y=rules[i].y
end
return nr
end
function digiline:rotate_rules_down(rules)
local nr={}
for i, rule in ipairs(rules) do
nr[i]={}
nr[i].y=rule.x
nr[i].x=-rule.y
nr[i].z=rule.z
end
return nr
end
function digiline:rotate_rules_up(rules)
local nr={}
for i, rule in ipairs(rules) do
nr[i]={}
nr[i].y=-rule.x
nr[i].x=rule.y
nr[i].z=rule.z
end
return nr
end
function digiline:tablecopy(table) -- deep table copy
if type(table) ~= "table" then return table end -- no need to copy
local newtable = {}
for idx, item in pairs(table) do
if type(item) == "table" then
newtable[idx] = digiline:tablecopy(item)
else
newtable[idx] = item
end
end
return newtable
end