fix vector.sun_dir
This commit is contained in:
HybridDog
parent
8563a67478
commit
1af07d4b59
25
init.lua
25
init.lua
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@ -1,3 +1,9 @@
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local load_time_start = os.clock()
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function vector.pos_to_string(pos)
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return "("..pos.x.."|"..pos.y.."|"..pos.z..")"
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end
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local r_corr = 0.25 --remove a bit more nodes (if shooting diagonal) to let it look like a hole (sth like antialiasing)
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-- this doesn't need to be calculated every time
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@ -137,19 +143,16 @@ function vector.straightdelay(s, v, a)
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return (math.sqrt(v*v+2*a*s)-v)/a
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end
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-- needs to get reworked
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function vector.sun_dir(t)
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vector.zero = {x=0, y=0, z=0}
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function vector.sun_dir(time)
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local t = (time-0.5)*5/6+0.5 --the sun rises at 5 o'clock, not at 6
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if t < 0.25
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or t > 0.75 then
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return
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end
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local p2
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if t > 0.5 then
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p2 = {x=-4, y=1/(2*t-1), z=0}
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else
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p2 = {x=4, y=1/(1-2*t), z=0}
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end
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return vector.direction({x=0,y=0,z=0}, p2)
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local tmp = math.pi*(2*t-0.5)
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return {x=math.cos(tmp), y=math.sin(tmp), z=0}
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end
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function vector.inside(pos, minp, maxp)
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@ -289,4 +292,6 @@ function vector.chunkcorner(pos)
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return {x=pos.x-pos.x%16, y=pos.y-pos.y%16, z=pos.z-pos.z%16}
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end
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vector.zero = {x=0, y=0, z=0}
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dofile(minetest.get_modpath("vector_extras").."/vector_meta.lua")
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print(string.format("[vector_extras] loaded after ca. %.2fs", os.clock() - load_time_start))
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@ -0,0 +1,183 @@
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vector.meta = vector.meta or {}
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vector.meta.nodes = {}
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vector.meta.nodes_file = {
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load = function()
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local nodesfile = io.open(minetest.get_worldpath()..'/vector_nodes.txt', "r")
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if nodesfile then
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local contents = nodesfile:read('*all')
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io.close(nodesfile)
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if contents ~= nil then
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local lines = string.split(contents, "\n")
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for _,entry in ipairs(lines) do
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local name, px, py, pz, meta = unpack(string.split(entry, "°"))
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vector.meta.set_node({x=px, y=py, z=pz}, name, meta)
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end
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end
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end
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end,
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save = function() --WRITE CHANGES TO FILE
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local output = ''
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for x,ys in pairs(vector.meta.nodes) do
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for y,zs in pairs(ys) do
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for z,names in pairs(zs) do
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for name,meta in pairs(names) do
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output = name.."°"..x.."°"..y.."°"..z.."°"..dump(meta).."\n"
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end
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end
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end
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end
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local f = io.open(minetest.get_worldpath()..'/vector_nodes.txt', "w")
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f:write(output)
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io.close(f)
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end
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}
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local function table_empty(tab) --looks if it's an empty table
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if next(tab) == nil then
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return true
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end
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return false
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end
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function vector.meta.nodes_info() --returns an info string of the node table
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local tmp = "[vector] "..dump(vector.meta.nodes).."\n[vector]:\n"
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for x,a in pairs(vector.meta.nodes) do
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for y,b in pairs(a) do
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for z,c in pairs(b) do
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for name,meta in pairs(c) do
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tmp = tmp..">\t"..name.." "..x.." "..y.." "..z.." "..dump(meta).."\n"
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end
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end
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end
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end
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return tmp
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end
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function vector.meta.clean_node_table() --replaces {} with nil
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local again = true
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while again do
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again = false
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for x,ys in pairs(vector.meta.nodes) do
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if table_empty(ys) then
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vector.meta.nodes[x] = nil
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again = true
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else
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for y,zs in pairs(ys) do
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if table_empty(zs) then
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vector.meta.nodes[x][y] = nil
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again = true
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else
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for z,names in pairs(zs) do
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if table_empty(names) then
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vector.meta.nodes[x][y][z] = nil
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again = true
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else
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for name,meta in pairs(names) do
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if table_empty(meta)
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or meta == "" then
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vector.meta.nodes[x][y][z][name] = nil
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again = true
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end
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end
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end
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end
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end
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end
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end
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end
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end
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end
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function vector.meta.complete_node_table(pos, name) --neccesary because tab[1] wouldn't work if tab is not a table
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local tmp = vector.meta.nodes[pos.x]
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if not tmp then
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vector.meta.nodes[pos.x] = {}
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end
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local tmp = vector.meta.nodes[pos.x][pos.y]
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if not tmp then
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vector.meta.nodes[pos.x][pos.y] = {}
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end
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local tmp = vector.meta.nodes[pos.x][pos.y][pos.z]
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if not tmp then
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vector.meta.nodes[pos.x][pos.y][pos.z] = {}
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end
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local tmp = vector.meta.nodes[pos.x][pos.y][pos.z][name]
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if not tmp then
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vector.meta.nodes[pos.x][pos.y][pos.z][name] = {}
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end
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end
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function vector.meta.get_node(pos, name)
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if not pos then
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return false
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end
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local tmp = vector.meta.nodes[pos.x]
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if not tmp
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or table_empty(tmp) then
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return false
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end
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local tmp = vector.meta.nodes[pos.x][pos.y]
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if not tmp
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or table_empty(tmp) then
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return false
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end
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local tmp = vector.meta.nodes[pos.x][pos.y][pos.z]
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if not tmp
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or table_empty(tmp) then
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return false
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end
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-- if name isn't mentioned, just look if there's a node
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if not name then
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return true
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end
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local tmp = vector.meta.nodes[pos.x][pos.y][pos.z][name]
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if not tmp
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or table_empty(tmp) then
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return false
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end
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return tmp
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end
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function vector.meta.remove_node(pos)
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if not pos then
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return false
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end
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if vector.meta.get_node(pos) then
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vector.meta.nodes[pos.x][pos.y][pos.z] = nil
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local xarr = vector.meta.nodes[pos.x]
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if table_empty(xarr[pos.y]) then
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vector.meta.nodes[pos.x][pos.y] = nil
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end
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if table_empty(xarr) then
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vector.meta.nodes[pos.x] = nil
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end
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else
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print("[vector_extras] Warning: The node at "..vector.pos_to_string(pos).." wasn't stored in vector.meta.nodes.")
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end
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end
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function vector.meta.set_node(pos, name, meta)
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if not (name or pos) then
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return false
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end
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vector.meta.complete_node_table(pos, name)
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meta = meta or true
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vector.meta.nodes[pos.x][pos.y][pos.z][name] = meta
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end
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minetest.register_chatcommand('cleanvectormetatable',{
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description = 'Tidy up it.',
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params = "",
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privs = {},
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func = function(name)
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vector.meta.clean_node_table()
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local tmp = vector.meta.nodes_info()
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minetest.chat_send_player(name, tmp)
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print("[vector_extras] "..tmp)
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end
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})
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vector.meta.nodes_file.load()
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