Serge Bazanski | 18c1a26 | 2022-07-07 14:24:53 +0200 | [diff] [blame] | 1 | --[[ |
| 2 | UNLICENSE |
| 3 | |
| 4 | This is free and unencumbered software released into the public domain. |
| 5 | |
| 6 | Anyone is free to copy, modify, publish, use, compile, sell, or distribute this |
| 7 | software, either in source code form or as a compiled binary, for any purpose, |
| 8 | commercial or non-commercial, and by any means. |
| 9 | |
| 10 | In jurisdictions that recognize copyright laws, the author or authors of this |
| 11 | software dedicate any and all copyright interest in the software to the public |
| 12 | domain. We make this dedication for the benefit of the public at large and to |
| 13 | the detriment of our heirs and successors. We intend this dedication to be an |
| 14 | overt act of relinquishment in perpetuity of all present and future rights to |
| 15 | this software under copyright law. |
| 16 | |
| 17 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 18 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTBILITY, FITNESS |
| 19 | FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT, IN NO EVENT SHALL THE AUTHORS BE |
| 20 | LIABLE FOR ANY CLAIM, DAMAGES, OR OTHER LIABILITY, WHETHER IN AN ACTION OF |
| 21 | CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| 22 | SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 23 | |
| 24 | For more information, please refer to <http://unlicense.org/> |
| 25 | ]] |
| 26 | |
| 27 | -- Code based on https://github.com/icrawler/FPSGraph |
| 28 | |
| 29 | local debugGraph = {} |
| 30 | |
| 31 | function debugGraph:new(type, x, y, width, height, delay, label, font) |
| 32 | if ({mem=0, fps=0, custom=0})[type] == nil then |
| 33 | error('Acceptable types: mem, fps, custom') |
| 34 | end |
| 35 | |
| 36 | local instance = { |
| 37 | x = x or 0, -- X position |
| 38 | y = y or 0, -- Y position |
| 39 | width = width or 50, -- Graph width |
| 40 | height = height or 30, -- Graph height |
| 41 | delay = delay or 0.5, -- Update delay |
| 42 | label = label or type, -- Graph label |
| 43 | font = font or love.graphics.newFont(8), |
| 44 | data = {}, |
| 45 | _max = 0, |
| 46 | _time = 0, |
| 47 | _type = type, |
| 48 | } |
| 49 | |
| 50 | -- Build base data |
| 51 | for i = 0, math.floor(instance.width / 2) do |
| 52 | table.insert(instance.data, 0) |
| 53 | end |
| 54 | |
| 55 | -- Updating the graph |
| 56 | function instance:update(dt, val) |
| 57 | local lastTime = self._time |
| 58 | self._time = (self._time + dt) % self.delay |
| 59 | |
| 60 | -- Check if the minimum amount of time has past |
| 61 | if dt > self.delay or lastTime > self._time then |
| 62 | -- Fetch data if needed |
| 63 | if val == nil then |
| 64 | if self._type == 'fps' then |
| 65 | -- Collect fps info and update the label |
| 66 | val = 0.75 * 1 / dt + 0.25 * love.timer.getFPS() |
| 67 | self.label = "FPS: " .. math.floor(val * 10) / 10 |
| 68 | elseif self._type == 'mem' then |
| 69 | -- Collect memory info and update the label |
| 70 | val = collectgarbage('count') |
| 71 | self.label = "Memory (KB): " .. math.floor(val * 10) / 10 |
| 72 | else |
| 73 | -- If the val is nil then we'll just skip this time |
| 74 | return |
| 75 | end |
| 76 | end |
| 77 | |
| 78 | |
| 79 | -- pop the old data and push new data |
| 80 | table.remove(self.data, 1) |
| 81 | table.insert(self.data, val) |
| 82 | |
| 83 | -- Find the highest value |
| 84 | local max = 0 |
| 85 | for i=1, #self.data do |
| 86 | local v = self.data[i] |
| 87 | if v > max then |
| 88 | max = v |
| 89 | end |
| 90 | end |
| 91 | |
| 92 | self._max = max |
| 93 | end |
| 94 | end |
| 95 | |
| 96 | function instance:draw() |
| 97 | -- Store the currently set font and change the font to our own |
| 98 | local fontCache = love.graphics.getFont() |
| 99 | love.graphics.setFont(self.font) |
| 100 | |
| 101 | local max = math.ceil(self._max/10) * 10 + 20 |
| 102 | local len = #self.data |
| 103 | local steps = self.width / len |
| 104 | |
| 105 | -- Build the line data |
| 106 | local lineData = {} |
| 107 | for i=1, len do |
| 108 | -- Build the X and Y of the point |
| 109 | local x = steps * (i - 1) + self.x |
| 110 | local y = self.height * (-self.data[i] / max + 1) + self.y |
| 111 | |
| 112 | -- Append it to the line |
| 113 | table.insert(lineData, x) |
| 114 | table.insert(lineData, y) |
| 115 | end |
| 116 | |
| 117 | -- Draw the line |
| 118 | love.graphics.line(unpack(lineData)) |
| 119 | |
| 120 | -- Print the label |
| 121 | if self.label ~= '' then |
| 122 | love.graphics.print(self.label, self.x, self.y + self.height - self.font:getHeight()) |
| 123 | end |
| 124 | |
| 125 | -- Reset the font |
| 126 | love.graphics.setFont(fontCache) |
| 127 | end |
| 128 | |
| 129 | return instance |
| 130 | end |
| 131 | |
| 132 | return debugGraph |