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321
main.lua
Normal file
321
main.lua
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-- Bootstrap
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appName = "lovr-playspace"
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mainScriptPath = (debug.getinfo(1, "S").source:sub(2):match("(.*[/\\])") or "./"):sub(1,-2)
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package.path = mainScriptPath.. "/lib/?.lua;" ..mainScriptPath.. "/lib/?/_main.lua;" ..package.path
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-- App
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hands = {"hand/right","hand/left"}
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limbs = {
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"head",
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"hand/left",
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"hand/right",
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"hand/left/point",
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"hand/right/point",
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"elbow/left",
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"elbow/right",
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"shoulder/left",
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"shoulder/right",
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"chest",
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"waist",
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"knee/left",
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"knee/right",
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"foot/left",
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"foot/right"
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}
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configDirs = {}
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json = require("json")
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function platformConfig()
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if os.getenv("HOME") ~= nil then
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return os.getenv("HOME") .. "/.config"
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end
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return os.getenv("APPDATA")
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end
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function fileExists(fileName)
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local file = io.open(fileName,"rb")
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if file == nil then return false end
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file:close()
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return true
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end
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function getConfigFile(fileName)
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for _,path in ipairs(configDirs) do
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if fileExists(path .. "/" .. fileName) then
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return path .. "/" .. fileName
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end
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end
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end
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function userConfig(fileName)
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return configDirs[1] .. "/" ..fileName
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end
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function fileWrite(fileName,content)
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local file = io.open(fileName,"wb")
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file:write(content)
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file:close()
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end
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function readFile(fileName)
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local file = io.open(fileName,"rb")
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content = file:read("*all")
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file:close()
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return content
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end
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function getDistanceBetweenPoints3D(x1,y1,z1,x2,y2,z2)
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return (((x2-x1)*(x2-x1)) + ((y2-y1)*(y2-y1)) + ((z2-z1)*(z2-z1))) / 2
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end
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-- This could be optimized by using a proper algorithm or determining which point of the line is closer to x,y,z first
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function getLineDistance(x,y,z,point1,point2)
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local lx1 = point1[1]
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local ly1 = 0
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local lz1 = point1[2]
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local lx2 = point2[1]
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local ly2 = 0
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local lz2 = point2[2]
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local d = getDistanceBetweenPoints3D(lx1,ly1,lz1,lx2,ly2,lz2)
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local dx = (lx2 - lx1) / d
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local dy = (ly2 - ly1) / d
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local dz = (lz2 - lz1) / d
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local cx1 = lx1
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local cy1 = ly1
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local cz1 = lz1
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local lowestDist = 9999
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while cx1 < lx1 do
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local dist = getDistanceBetweenPoints3D(x,y,z,cx1,cy1,cz1)
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if dist < lowestDist then
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lowestDist = dist
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else
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return lowestDist
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end
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cx1 = cx1 + (dx * settings.check_density)
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cy1 = cy1 + (dy * settings.check_density)
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cz1 = cz1 + (dz * settings.check_density)
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end
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return lowestDist
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end
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function getButton(method,button,devices)
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for _,device in ipairs(devices) do
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if method(device,button) == true then return device end
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end
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end
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function isTracked(device)
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local x,y,z = lovr.headset.getPosition(device)
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if x == 0.0 and y == 0.0 and z == 0.0 then return false end
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return true
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end
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function drawSinglePointGrid(pass,point1,point2,cornerColor,miscColor)
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local _,hy,_ = lovr.headset.getPosition("head")
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local lx1 = point1[1]
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local ly1 = hy
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local lz1 = point1[2]
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local lx2 = point2[1]
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local ly2 = hy
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local lz2 = point2[2]
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local d = getDistanceBetweenPoints3D(lx1,ly1,lz1,lx2,ly2,lz2)
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local dx = (lx2 - lx1) / d
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local dy = (ly2 - ly1) / d
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local dz = (lz2 - lz1) / d
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pass:setColor(unpack(miscColor))
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local drawY = settings.grid_top
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while drawY >= settings.grid_bottom do
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pass:line({
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lx1,drawY,lz1,
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lx2,drawY,lz2
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})
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drawY = drawY - settings.grid_density
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end
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pass:setColor(unpack(cornerColor))
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pass:line({
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lx1,settings.grid_bottom,lz1,
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lx1,settings.grid_top,lz1
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})
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pass:line({
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lx1,settings.grid_bottom,lz1,
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lx2,settings.grid_bottom,lz2
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})
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pass:line({
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lx1,settings.grid_top,lz1,
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lx2,settings.grid_top,lz2
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})
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end
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function drawPointGrid(pass,points,cornerColor,miscColor)
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local index = 2
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local length = #points
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if length < 1 then return end
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while index <= length do
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drawSinglePointGrid(pass,points[index - 1],points[index],cornerColor,miscColor)
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index = index + 1
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end
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drawSinglePointGrid(pass,points[length],points[1],cornerColor,miscColor)
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end
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function lovr.load()
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lovr.graphics.setBackgroundColor(0.0, 0.0, 0.0, 0.0)
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--table.insert(configDirs,platformConfig() .. "/" .. appName)
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table.insert(configDirs,mainScriptPath .. "/config")
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settings = {}
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settings.action_button = readFile(getConfigFile("action_button.txt"))
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settings.check_density = tonumber(readFile(getConfigFile("check_density.txt")))
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settings.fade_start = tonumber(readFile(getConfigFile("fade_start.txt")))
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settings.fade_stop = tonumber(readFile(getConfigFile("fade_stop.txt")))
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settings.grid_density = tonumber(readFile(getConfigFile("grid_density.txt")))
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settings.grid_bottom = tonumber(readFile(getConfigFile("grid_bottom.txt")))
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settings.grid_top = tonumber(readFile(getConfigFile("grid_top.txt")))
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settings.color_close_corners = json.decode(readFile(getConfigFile("color_close_corners.json")))
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settings.color_close_grid = json.decode(readFile(getConfigFile("color_close_grid.json")))
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settings.color_far_corners = json.decode(readFile(getConfigFile("color_far_corners.json")))
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settings.color_far_grid = json.decode(readFile(getConfigFile("color_far_grid.json")))
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settings.points = {}
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--[[if not lovr.filesystem.isDirectory(configDirs[1]) then
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fileWrite(userConfig("action_button.txt"),readFile(getConfigFile("action_button.txt")))
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fileWrite(userConfig("check_density.txt"),readFile(getConfigFile("check_density.txt")))
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fileWrite(userConfig("fade_start.txt"),readFile(getConfigFile("fade_start.txt")))
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fileWrite(userConfig("fade_stop.txt"),readFile(getConfigFile("fade_stop.txt")))
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fileWrite(userConfig("grid_density.txt"),readFile(getConfigFile("grid_density.txt")))
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fileWrite(userConfig("grid_bottom.txt"),readFile(getConfigFile("grid_bottom.txt")))
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fileWrite(userConfig("grid_top.txt"),readFile(getConfigFile("grid_top.txt")))
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fileWrite(userConfig("color_close_corners.json"),readFile(getConfigFile("color_close_corners.json")))
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fileWrite(userConfig("color_close_grid.json"),readFile(getConfigFile("color_close_grid.json")))
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fileWrite(userConfig("color_far_corners.json"),readFile(getConfigFile("color_far_corners.json")))
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fileWrite(userConfig("color_far_grid.json"),readFile(getConfigFile("color_far_grid.json")))
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initConfigure()
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return
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end]]--
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if getConfigFile("points.json") == nil then
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initConfigure()
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return
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end
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for _,hand in ipairs(hands) do
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if lovr.headset.isDown(hand,settings.action_button) then
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initConfigure()
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return
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end
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end
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settings.points = json.decode(readFile(getConfigFile("points.json")))
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mode = modeDraw
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end
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function initConfigure()
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saveProg = 1.0
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lovr.update = function(dt)
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deltaTime = dt
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end
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mode = modeConfigure
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end
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function deinitConfigure()
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saveProg = nil
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lovr.update = nil
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deltaTime = nil
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mode = modeDraw
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end
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function modeConfigure(pass)
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local _,hy,_ = lovr.headset.getPosition("head")
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for _,hand in ipairs(hands) do
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if isTracked(hand .. "/point") then
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local x,y,z = lovr.headset.getPosition(hand .. "/point")
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pass:setColor(1,0,0,0.5 * saveProg)
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pass:sphere(x,y,z,0.1)
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pass:setColor(1,1,1,saveProg)
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pass:text(
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"- Press '" ..settings.action_button.. "' to add a point -\n" ..
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"- Hold '" ..settings.action_button.. "' to save -\n\n" ..
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string.format("%.2f",x) .. "," .. string.format("%.2f",y) .. "," .. string.format("%.2f",z)
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,x,y - 0.3,z,0.066)
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end
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end
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local inputDev = getButton(lovr.headset.wasReleased,settings.action_button,hands)
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if inputDev ~= nil and isTracked(inputDev) then
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local hx,_,hz = lovr.headset.getPosition(inputDev)
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table.insert(settings.points,{hx,hz})
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end
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inputDev = getButton(lovr.headset.isDown,settings.action_button,hands)
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if inputDev ~= nil then
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saveProg = saveProg - (deltaTime / 3)
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if saveProg <= 0 then
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fileWrite(userConfig("points.json"),json.encode(settings.points))
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deinitConfigure()
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modeDraw(pass)
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return
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end
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else
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saveProg = 1.0
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end
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pass:setColor(1,0,0,0.5)
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for _,point in ipairs(settings.points) do
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pass:sphere(point[1],1.5,point[2],0.1)
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end
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modeDraw(pass)
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end
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function modeDraw(pass)
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local x,y,z = lovr.headset.getPosition("head")
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local lowestDist = 9999
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local index = 2
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local length = #settings.points
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if length < 1 then return end
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while index <= length do
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local dist = getLineDistance(x,y,z,settings.points[index - 1],settings.points[index])
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if dist < lowestDist then lowestDist = dist end
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index = index + 1
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end
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lowestDist = (lowestDist - settings.fade_stop) / (settings.fade_start - settings.fade_stop)
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if lowestDist < 0 then lowestDist = 0 end
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if lowestDist > 1 then lowestDist = 1 end
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local cdr=settings.color_close_corners[1] - settings.color_far_corners[1]
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cdr = settings.color_far_corners[1] + (cdr * lowestDist)
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local cdg=settings.color_close_corners[2] - settings.color_far_corners[2]
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cdg = settings.color_far_corners[2] + (cdg * lowestDist)
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local cdb=settings.color_close_corners[3] - settings.color_far_corners[3]
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cdb = settings.color_far_corners[3] + (cdb * lowestDist)
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local cda=settings.color_close_corners[4] - settings.color_far_corners[4]
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cda = settings.color_far_corners[4] + (cda * lowestDist)
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local gdr=settings.color_close_grid[1] - settings.color_far_grid[1]
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gdr = settings.color_far_grid[1] + (gdr * lowestDist)
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local gdg=settings.color_close_grid[2] - settings.color_far_grid[2]
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gdg = settings.color_far_grid[2] + (gdg * lowestDist)
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local gdb=settings.color_close_grid[3] - settings.color_far_grid[3]
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gdb = settings.color_far_grid[3] + (gdb * lowestDist)
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local gda=settings.color_close_grid[4] - settings.color_far_grid[4]
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gda = settings.color_far_grid[4] + (gda * lowestDist)
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drawPointGrid(pass,settings.points,{cdr,cdg,cdb,cda},{gdr,gdg,gdb,gda})
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end
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function lovr.draw(pass)
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mode(pass)
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end
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