45 lines
865 B
Lua
45 lines
865 B
Lua
digistuff.rotate_rules = function(rulesin,dir)
|
|
local rules = {}
|
|
for k,v in ipairs(rulesin) do rules[k] = v end
|
|
if dir.z > 0 then
|
|
return rules
|
|
elseif dir.z < 0 then
|
|
for _,i in ipairs(rules) do
|
|
i.x = -i.x
|
|
i.z = -i.z
|
|
end
|
|
return rules
|
|
elseif dir.x > 0 then
|
|
for _,i in ipairs(rules) do
|
|
local z = i.x
|
|
i.x = i.z
|
|
i.z = -z
|
|
end
|
|
return rules
|
|
elseif dir.x < 0 then
|
|
for _,i in ipairs(rules) do
|
|
local z = i.x
|
|
i.x = -i.z
|
|
i.z = z
|
|
end
|
|
return rules
|
|
elseif dir.y > 0 then
|
|
for _,i in ipairs(rules) do
|
|
local z = i.y
|
|
i.y = i.z
|
|
i.z = z
|
|
end
|
|
return rules
|
|
elseif dir.y < 0 then
|
|
for _,i in ipairs(rules) do
|
|
local z = i.y
|
|
i.y = -i.z
|
|
i.z = -z
|
|
end
|
|
return rules
|
|
else
|
|
minetest.log("warning",string.format("digistuff.rotate_rules() called with invalid direction %s,%s,%s",dir.x,dir.y,dir.z))
|
|
return {}
|
|
end
|
|
end
|