Initial commit

This commit is contained in:
Fierelier 2023-02-18 21:42:51 +01:00
parent d12a6c084f
commit c902189454
14 changed files with 723 additions and 0 deletions

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conf.lua Normal file
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function lovr.conf(t)
t.headset.overlay = true
end

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config/action_button.txt Normal file
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a

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config/check_density.txt Normal file
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0.05

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[1.0,0.0,1.0,1.0]

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[1.0,0.0,1.0,1.0]

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[1.0,0.0,1.0,0.1]

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[1.0,0.0,1.0,0.0]

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config/fade_start.txt Normal file
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4.0

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config/fade_stop.txt Normal file
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2.0

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config/grid_bottom.txt Normal file
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0.0

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config/grid_density.txt Normal file
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1.0

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config/grid_top.txt Normal file
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lib/json.lua Normal file
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--
-- json.lua
--
-- Copyright (c) 2020 rxi
--
-- Permission is hereby granted, free of charge, to any person obtaining a copy of
-- this software and associated documentation files (the "Software"), to deal in
-- the Software without restriction, including without limitation the rights to
-- use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-- of the Software, and to permit persons to whom the Software is furnished to do
-- so, subject to the following conditions:
--
-- The above copyright notice and this permission notice shall be included in all
-- copies or substantial portions of the Software.
--
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-- SOFTWARE.
--
local json = { _version = "0.1.2" }
-------------------------------------------------------------------------------
-- Encode
-------------------------------------------------------------------------------
local encode
local escape_char_map = {
[ "\\" ] = "\\",
[ "\"" ] = "\"",
[ "\b" ] = "b",
[ "\f" ] = "f",
[ "\n" ] = "n",
[ "\r" ] = "r",
[ "\t" ] = "t",
}
local escape_char_map_inv = { [ "/" ] = "/" }
for k, v in pairs(escape_char_map) do
escape_char_map_inv[v] = k
end
local function escape_char(c)
return "\\" .. (escape_char_map[c] or string.format("u%04x", c:byte()))
end
local function encode_nil(val)
return "null"
end
local function encode_table(val, stack)
local res = {}
stack = stack or {}
-- Circular reference?
if stack[val] then error("circular reference") end
stack[val] = true
if rawget(val, 1) ~= nil or next(val) == nil then
-- Treat as array -- check keys are valid and it is not sparse
local n = 0
for k in pairs(val) do
if type(k) ~= "number" then
error("invalid table: mixed or invalid key types")
end
n = n + 1
end
if n ~= #val then
error("invalid table: sparse array")
end
-- Encode
for i, v in ipairs(val) do
table.insert(res, encode(v, stack))
end
stack[val] = nil
return "[" .. table.concat(res, ",") .. "]"
else
-- Treat as an object
for k, v in pairs(val) do
if type(k) ~= "string" then
error("invalid table: mixed or invalid key types")
end
table.insert(res, encode(k, stack) .. ":" .. encode(v, stack))
end
stack[val] = nil
return "{" .. table.concat(res, ",") .. "}"
end
end
local function encode_string(val)
return '"' .. val:gsub('[%z\1-\31\\"]', escape_char) .. '"'
end
local function encode_number(val)
-- Check for NaN, -inf and inf
if val ~= val or val <= -math.huge or val >= math.huge then
error("unexpected number value '" .. tostring(val) .. "'")
end
return string.format("%.14g", val)
end
local type_func_map = {
[ "nil" ] = encode_nil,
[ "table" ] = encode_table,
[ "string" ] = encode_string,
[ "number" ] = encode_number,
[ "boolean" ] = tostring,
}
encode = function(val, stack)
local t = type(val)
local f = type_func_map[t]
if f then
return f(val, stack)
end
error("unexpected type '" .. t .. "'")
end
function json.encode(val)
return ( encode(val) )
end
-------------------------------------------------------------------------------
-- Decode
-------------------------------------------------------------------------------
local parse
local function create_set(...)
local res = {}
for i = 1, select("#", ...) do
res[ select(i, ...) ] = true
end
return res
end
local space_chars = create_set(" ", "\t", "\r", "\n")
local delim_chars = create_set(" ", "\t", "\r", "\n", "]", "}", ",")
local escape_chars = create_set("\\", "/", '"', "b", "f", "n", "r", "t", "u")
local literals = create_set("true", "false", "null")
local literal_map = {
[ "true" ] = true,
[ "false" ] = false,
[ "null" ] = nil,
}
local function next_char(str, idx, set, negate)
for i = idx, #str do
if set[str:sub(i, i)] ~= negate then
return i
end
end
return #str + 1
end
local function decode_error(str, idx, msg)
local line_count = 1
local col_count = 1
for i = 1, idx - 1 do
col_count = col_count + 1
if str:sub(i, i) == "\n" then
line_count = line_count + 1
col_count = 1
end
end
error( string.format("%s at line %d col %d", msg, line_count, col_count) )
end
local function codepoint_to_utf8(n)
-- http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&id=iws-appendixa
local f = math.floor
if n <= 0x7f then
return string.char(n)
elseif n <= 0x7ff then
return string.char(f(n / 64) + 192, n % 64 + 128)
elseif n <= 0xffff then
return string.char(f(n / 4096) + 224, f(n % 4096 / 64) + 128, n % 64 + 128)
elseif n <= 0x10ffff then
return string.char(f(n / 262144) + 240, f(n % 262144 / 4096) + 128,
f(n % 4096 / 64) + 128, n % 64 + 128)
end
error( string.format("invalid unicode codepoint '%x'", n) )
end
local function parse_unicode_escape(s)
local n1 = tonumber( s:sub(1, 4), 16 )
local n2 = tonumber( s:sub(7, 10), 16 )
-- Surrogate pair?
if n2 then
return codepoint_to_utf8((n1 - 0xd800) * 0x400 + (n2 - 0xdc00) + 0x10000)
else
return codepoint_to_utf8(n1)
end
end
local function parse_string(str, i)
local res = ""
local j = i + 1
local k = j
while j <= #str do
local x = str:byte(j)
if x < 32 then
decode_error(str, j, "control character in string")
elseif x == 92 then -- `\`: Escape
res = res .. str:sub(k, j - 1)
j = j + 1
local c = str:sub(j, j)
if c == "u" then
local hex = str:match("^[dD][89aAbB]%x%x\\u%x%x%x%x", j + 1)
or str:match("^%x%x%x%x", j + 1)
or decode_error(str, j - 1, "invalid unicode escape in string")
res = res .. parse_unicode_escape(hex)
j = j + #hex
else
if not escape_chars[c] then
decode_error(str, j - 1, "invalid escape char '" .. c .. "' in string")
end
res = res .. escape_char_map_inv[c]
end
k = j + 1
elseif x == 34 then -- `"`: End of string
res = res .. str:sub(k, j - 1)
return res, j + 1
end
j = j + 1
end
decode_error(str, i, "expected closing quote for string")
end
local function parse_number(str, i)
local x = next_char(str, i, delim_chars)
local s = str:sub(i, x - 1)
local n = tonumber(s)
if not n then
decode_error(str, i, "invalid number '" .. s .. "'")
end
return n, x
end
local function parse_literal(str, i)
local x = next_char(str, i, delim_chars)
local word = str:sub(i, x - 1)
if not literals[word] then
decode_error(str, i, "invalid literal '" .. word .. "'")
end
return literal_map[word], x
end
local function parse_array(str, i)
local res = {}
local n = 1
i = i + 1
while 1 do
local x
i = next_char(str, i, space_chars, true)
-- Empty / end of array?
if str:sub(i, i) == "]" then
i = i + 1
break
end
-- Read token
x, i = parse(str, i)
res[n] = x
n = n + 1
-- Next token
i = next_char(str, i, space_chars, true)
local chr = str:sub(i, i)
i = i + 1
if chr == "]" then break end
if chr ~= "," then decode_error(str, i, "expected ']' or ','") end
end
return res, i
end
local function parse_object(str, i)
local res = {}
i = i + 1
while 1 do
local key, val
i = next_char(str, i, space_chars, true)
-- Empty / end of object?
if str:sub(i, i) == "}" then
i = i + 1
break
end
-- Read key
if str:sub(i, i) ~= '"' then
decode_error(str, i, "expected string for key")
end
key, i = parse(str, i)
-- Read ':' delimiter
i = next_char(str, i, space_chars, true)
if str:sub(i, i) ~= ":" then
decode_error(str, i, "expected ':' after key")
end
i = next_char(str, i + 1, space_chars, true)
-- Read value
val, i = parse(str, i)
-- Set
res[key] = val
-- Next token
i = next_char(str, i, space_chars, true)
local chr = str:sub(i, i)
i = i + 1
if chr == "}" then break end
if chr ~= "," then decode_error(str, i, "expected '}' or ','") end
end
return res, i
end
local char_func_map = {
[ '"' ] = parse_string,
[ "0" ] = parse_number,
[ "1" ] = parse_number,
[ "2" ] = parse_number,
[ "3" ] = parse_number,
[ "4" ] = parse_number,
[ "5" ] = parse_number,
[ "6" ] = parse_number,
[ "7" ] = parse_number,
[ "8" ] = parse_number,
[ "9" ] = parse_number,
[ "-" ] = parse_number,
[ "t" ] = parse_literal,
[ "f" ] = parse_literal,
[ "n" ] = parse_literal,
[ "[" ] = parse_array,
[ "{" ] = parse_object,
}
parse = function(str, idx)
local chr = str:sub(idx, idx)
local f = char_func_map[chr]
if f then
return f(str, idx)
end
decode_error(str, idx, "unexpected character '" .. chr .. "'")
end
function json.decode(str)
if type(str) ~= "string" then
error("expected argument of type string, got " .. type(str))
end
local res, idx = parse(str, next_char(str, 1, space_chars, true))
idx = next_char(str, idx, space_chars, true)
if idx <= #str then
decode_error(str, idx, "trailing garbage")
end
return res
end
return json

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-- Bootstrap
appName = "lovr-playspace"
mainScriptPath = (debug.getinfo(1, "S").source:sub(2):match("(.*[/\\])") or "./"):sub(1,-2)
package.path = mainScriptPath.. "/lib/?.lua;" ..mainScriptPath.. "/lib/?/_main.lua;" ..package.path
-- App
hands = {"hand/right","hand/left"}
limbs = {
"head",
"hand/left",
"hand/right",
"hand/left/point",
"hand/right/point",
"elbow/left",
"elbow/right",
"shoulder/left",
"shoulder/right",
"chest",
"waist",
"knee/left",
"knee/right",
"foot/left",
"foot/right"
}
configDirs = {}
json = require("json")
function platformConfig()
if os.getenv("HOME") ~= nil then
return os.getenv("HOME") .. "/.config"
end
return os.getenv("APPDATA")
end
function fileExists(fileName)
local file = io.open(fileName,"rb")
if file == nil then return false end
file:close()
return true
end
function getConfigFile(fileName)
for _,path in ipairs(configDirs) do
if fileExists(path .. "/" .. fileName) then
return path .. "/" .. fileName
end
end
end
function userConfig(fileName)
return configDirs[1] .. "/" ..fileName
end
function fileWrite(fileName,content)
local file = io.open(fileName,"wb")
file:write(content)
file:close()
end
function readFile(fileName)
local file = io.open(fileName,"rb")
content = file:read("*all")
file:close()
return content
end
function getDistanceBetweenPoints3D(x1,y1,z1,x2,y2,z2)
return (((x2-x1)*(x2-x1)) + ((y2-y1)*(y2-y1)) + ((z2-z1)*(z2-z1))) / 2
end
-- This could be optimized by using a proper algorithm or determining which point of the line is closer to x,y,z first
function getLineDistance(x,y,z,point1,point2)
local lx1 = point1[1]
local ly1 = 0
local lz1 = point1[2]
local lx2 = point2[1]
local ly2 = 0
local lz2 = point2[2]
local d = getDistanceBetweenPoints3D(lx1,ly1,lz1,lx2,ly2,lz2)
local dx = (lx2 - lx1) / d
local dy = (ly2 - ly1) / d
local dz = (lz2 - lz1) / d
local cx1 = lx1
local cy1 = ly1
local cz1 = lz1
local lowestDist = 9999
while cx1 < lx1 do
local dist = getDistanceBetweenPoints3D(x,y,z,cx1,cy1,cz1)
if dist < lowestDist then
lowestDist = dist
else
return lowestDist
end
cx1 = cx1 + (dx * settings.check_density)
cy1 = cy1 + (dy * settings.check_density)
cz1 = cz1 + (dz * settings.check_density)
end
return lowestDist
end
function getButton(method,button,devices)
for _,device in ipairs(devices) do
if method(device,button) == true then return device end
end
end
function isTracked(device)
local x,y,z = lovr.headset.getPosition(device)
if x == 0.0 and y == 0.0 and z == 0.0 then return false end
return true
end
function drawSinglePointGrid(pass,point1,point2,cornerColor,miscColor)
local _,hy,_ = lovr.headset.getPosition("head")
local lx1 = point1[1]
local ly1 = hy
local lz1 = point1[2]
local lx2 = point2[1]
local ly2 = hy
local lz2 = point2[2]
local d = getDistanceBetweenPoints3D(lx1,ly1,lz1,lx2,ly2,lz2)
local dx = (lx2 - lx1) / d
local dy = (ly2 - ly1) / d
local dz = (lz2 - lz1) / d
pass:setColor(unpack(miscColor))
local drawY = settings.grid_top
while drawY >= settings.grid_bottom do
pass:line({
lx1,drawY,lz1,
lx2,drawY,lz2
})
drawY = drawY - settings.grid_density
end
pass:setColor(unpack(cornerColor))
pass:line({
lx1,settings.grid_bottom,lz1,
lx1,settings.grid_top,lz1
})
pass:line({
lx1,settings.grid_bottom,lz1,
lx2,settings.grid_bottom,lz2
})
pass:line({
lx1,settings.grid_top,lz1,
lx2,settings.grid_top,lz2
})
end
function drawPointGrid(pass,points,cornerColor,miscColor)
local index = 2
local length = #points
if length < 1 then return end
while index <= length do
drawSinglePointGrid(pass,points[index - 1],points[index],cornerColor,miscColor)
index = index + 1
end
drawSinglePointGrid(pass,points[length],points[1],cornerColor,miscColor)
end
function lovr.load()
lovr.graphics.setBackgroundColor(0.0, 0.0, 0.0, 0.0)
--table.insert(configDirs,platformConfig() .. "/" .. appName)
table.insert(configDirs,mainScriptPath .. "/config")
settings = {}
settings.action_button = readFile(getConfigFile("action_button.txt"))
settings.check_density = tonumber(readFile(getConfigFile("check_density.txt")))
settings.fade_start = tonumber(readFile(getConfigFile("fade_start.txt")))
settings.fade_stop = tonumber(readFile(getConfigFile("fade_stop.txt")))
settings.grid_density = tonumber(readFile(getConfigFile("grid_density.txt")))
settings.grid_bottom = tonumber(readFile(getConfigFile("grid_bottom.txt")))
settings.grid_top = tonumber(readFile(getConfigFile("grid_top.txt")))
settings.color_close_corners = json.decode(readFile(getConfigFile("color_close_corners.json")))
settings.color_close_grid = json.decode(readFile(getConfigFile("color_close_grid.json")))
settings.color_far_corners = json.decode(readFile(getConfigFile("color_far_corners.json")))
settings.color_far_grid = json.decode(readFile(getConfigFile("color_far_grid.json")))
settings.points = {}
--[[if not lovr.filesystem.isDirectory(configDirs[1]) then
fileWrite(userConfig("action_button.txt"),readFile(getConfigFile("action_button.txt")))
fileWrite(userConfig("check_density.txt"),readFile(getConfigFile("check_density.txt")))
fileWrite(userConfig("fade_start.txt"),readFile(getConfigFile("fade_start.txt")))
fileWrite(userConfig("fade_stop.txt"),readFile(getConfigFile("fade_stop.txt")))
fileWrite(userConfig("grid_density.txt"),readFile(getConfigFile("grid_density.txt")))
fileWrite(userConfig("grid_bottom.txt"),readFile(getConfigFile("grid_bottom.txt")))
fileWrite(userConfig("grid_top.txt"),readFile(getConfigFile("grid_top.txt")))
fileWrite(userConfig("color_close_corners.json"),readFile(getConfigFile("color_close_corners.json")))
fileWrite(userConfig("color_close_grid.json"),readFile(getConfigFile("color_close_grid.json")))
fileWrite(userConfig("color_far_corners.json"),readFile(getConfigFile("color_far_corners.json")))
fileWrite(userConfig("color_far_grid.json"),readFile(getConfigFile("color_far_grid.json")))
initConfigure()
return
end]]--
if getConfigFile("points.json") == nil then
initConfigure()
return
end
for _,hand in ipairs(hands) do
if lovr.headset.isDown(hand,settings.action_button) then
initConfigure()
return
end
end
settings.points = json.decode(readFile(getConfigFile("points.json")))
mode = modeDraw
end
function initConfigure()
saveProg = 1.0
lovr.update = function(dt)
deltaTime = dt
end
mode = modeConfigure
end
function deinitConfigure()
saveProg = nil
lovr.update = nil
deltaTime = nil
mode = modeDraw
end
function modeConfigure(pass)
local _,hy,_ = lovr.headset.getPosition("head")
for _,hand in ipairs(hands) do
if isTracked(hand .. "/point") then
local x,y,z = lovr.headset.getPosition(hand .. "/point")
pass:setColor(1,0,0,0.5 * saveProg)
pass:sphere(x,y,z,0.1)
pass:setColor(1,1,1,saveProg)
pass:text(
"- Press '" ..settings.action_button.. "' to add a point -\n" ..
"- Hold '" ..settings.action_button.. "' to save -\n\n" ..
string.format("%.2f",x) .. "," .. string.format("%.2f",y) .. "," .. string.format("%.2f",z)
,x,y - 0.3,z,0.066)
end
end
local inputDev = getButton(lovr.headset.wasReleased,settings.action_button,hands)
if inputDev ~= nil and isTracked(inputDev) then
local hx,_,hz = lovr.headset.getPosition(inputDev)
table.insert(settings.points,{hx,hz})
end
inputDev = getButton(lovr.headset.isDown,settings.action_button,hands)
if inputDev ~= nil then
saveProg = saveProg - (deltaTime / 3)
if saveProg <= 0 then
fileWrite(userConfig("points.json"),json.encode(settings.points))
deinitConfigure()
modeDraw(pass)
return
end
else
saveProg = 1.0
end
pass:setColor(1,0,0,0.5)
for _,point in ipairs(settings.points) do
pass:sphere(point[1],1.5,point[2],0.1)
end
modeDraw(pass)
end
function modeDraw(pass)
local x,y,z = lovr.headset.getPosition("head")
local lowestDist = 9999
local index = 2
local length = #settings.points
if length < 1 then return end
while index <= length do
local dist = getLineDistance(x,y,z,settings.points[index - 1],settings.points[index])
if dist < lowestDist then lowestDist = dist end
index = index + 1
end
lowestDist = (lowestDist - settings.fade_stop) / (settings.fade_start - settings.fade_stop)
if lowestDist < 0 then lowestDist = 0 end
if lowestDist > 1 then lowestDist = 1 end
local cdr=settings.color_close_corners[1] - settings.color_far_corners[1]
cdr = settings.color_far_corners[1] + (cdr * lowestDist)
local cdg=settings.color_close_corners[2] - settings.color_far_corners[2]
cdg = settings.color_far_corners[2] + (cdg * lowestDist)
local cdb=settings.color_close_corners[3] - settings.color_far_corners[3]
cdb = settings.color_far_corners[3] + (cdb * lowestDist)
local cda=settings.color_close_corners[4] - settings.color_far_corners[4]
cda = settings.color_far_corners[4] + (cda * lowestDist)
local gdr=settings.color_close_grid[1] - settings.color_far_grid[1]
gdr = settings.color_far_grid[1] + (gdr * lowestDist)
local gdg=settings.color_close_grid[2] - settings.color_far_grid[2]
gdg = settings.color_far_grid[2] + (gdg * lowestDist)
local gdb=settings.color_close_grid[3] - settings.color_far_grid[3]
gdb = settings.color_far_grid[3] + (gdb * lowestDist)
local gda=settings.color_close_grid[4] - settings.color_far_grid[4]
gda = settings.color_far_grid[4] + (gda * lowestDist)
drawPointGrid(pass,settings.points,{cdr,cdg,cdb,cda},{gdr,gdg,gdb,gda})
end
function lovr.draw(pass)
mode(pass)
end