feat: first functional thing

.luarc.json

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+{
+    "$schema": "https://raw.githubusercontent.com/sumneko/vscode-lua/master/setting/schema.json",
+    "runtime.version": "Lua 5.3",
+    "workspace.library": [
+        "c:\\Users\\spike\\.vscode\\extensions\\filloax.isaac-lua-api-vscode-1.5.0\\out\\emmylua"
+    ],
+    "diagnostics.globals": [
+        "ActionTriggers",
+        "ActiveSlot",
+        "BabySubType",
+        "BackdropType",
+        "BatterySubType",
+        "BedSubType",
+        "BitSet128",
+        "BombSubType",
+        "BombVariant",
+        "ButtonAction",
+        "CacheFlag",
+        "Card",
+        "Challenge",
+        "ChampionColor",
+        "ChestSubType",
+        "CoinSubType",
+        "CollectibleType",
+        "Color",
+        "CppContainer",
+        "DamageFlag",
+        "Difficulty",
+        "Direction",
+        "DoorSlot",
+        "DoorState",
+        "DoorVariant",
+        "EffectVariant",
+        "Entity",
+        "EntityBomb",
+        "EntityCollisionClass",
+        "EntityEffect",
+        "EntityFamiliar",
+        "EntityFlag",
+        "EntityGridCollisionClass",
+        "EntityKnife",
+        "EntityLaser",
+        "EntityNPC",
+        "EntityPartition",
+        "EntityPickup",
+        "EntityPlayer",
+        "EntityProjectile",
+        "EntityPtr",
+        "EntityRef",
+        "EntityTear",
+        "EntityType",
+        "FamiliarVariant",
+        "Font",
+        "Game",
+        "GameStateFlag",
+        "GetPtrHash",
+        "GridCollisionClass",
+        "GridEntity",
+        "GridEntityDesc",
+        "GridEntityDoor",
+        "GridEntityPit",
+        "GridEntityPoop",
+        "GridEntityPressurePlate",
+        "GridEntityRock",
+        "GridEntitySpikes",
+        "GridEntityTNT",
+        "GridEntityType",
+        "GridRooms",
+        "HUD",
+        "HeartSubType",
+        "Input",
+        "InputHook",
+        "Isaac",
+        "ItemConfig",
+        "ItemPool",
+        "ItemPoolType",
+        "ItemType",
+        "KColor",
+        "KeySubType",
+        "Keyboard",
+        "LaserOffset",
+        "LaserSubType",
+        "Level",
+        "LevelCurse",
+        "LevelStage",
+        "LevelStateFlag",
+        "LocustSubtypes",
+        "ModCallbacks",
+        "Mouse",
+        "Music",
+        "MusicManager",
+        "NpcState",
+        "NullItemID",
+        "Options",
+        "PathFinder",
+        "PickupPrice",
+        "PickupVariant",
+        "PillColor",
+        "PillEffect",
+        "PlayerForm",
+        "PlayerSpriteLayer",
+        "PlayerType",
+        "PlayerTypes",
+        "PoopPickupSubType",
+        "PoopSpellType",
+        "ProjectileFlags",
+        "ProjectileParams",
+        "ProjectileVariant",
+        "QueueItemData",
+        "REPENTANCE",
+        "RNG",
+        "Random",
+        "RandomVector",
+        "RegisterMod",
+        "RenderMode",
+        "Room",
+        "RoomConfig",
+        "RoomDescriptor",
+        "RoomShape",
+        "RoomTransitionAnim",
+        "RoomType",
+        "SFXManager",
+        "SackSubType",
+        "SeedEffect",
+        "Seeds",
+        "ShockwaveParams",
+        "SkinColor",
+        "SortingLayer",
+        "SoundEffect",
+        "Sprite",
+        "StageType",
+        "StartDebug",
+        "TearFlags",
+        "TearParams",
+        "TearVariant",
+        "TemporaryEffect",
+        "TemporaryEffects",
+        "TrinketType",
+        "UseFlag",
+        "Vector",
+        "WeaponType",
+        "EID",
+        "CustomGameOver",
+        "Encyclopedia",
+        "DetailedRespawn",
+        "MinimapAPI"
+    ]
+}

.vscode/settings.json

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+{
+  "files.associations": {
+    ".anm2": "xml"
+  }
+}

README.md

@@ -1,2 +1,8 @@
 # WhatsMyDPS
-DPS meter mod for TBoI: Repentance
+DPS meter mod for TBoI: Repentance. Based on an [old mod](https://steamcommunity.com/sharedfiles/filedetails/?id=836033374&searchtext=dps+meter), modified and expanded to work with Repentance
+
+# Installation
+Download from the [Steam Workshop](https://steamcommunity.com/sharedfiles/filedetails/?id=TODO), or extract the [release](https://github.com/SpikeHD/WhatsMyDPS/releases) into your mods folder.
+
+# Contributing
+Issues, PRs, etc. all welcome!

main.lua

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+local wmd = RegisterMod("Whats My Damage?", 1)
+
+local screenSize
+local totalDamage = 0
+local frames = 0
+local seconds = 0
+
+function ToFixed(num, idp)
+  return tonumber(string.format("%." .. (idp or 0) .. "f", num))
+end
+
+function wmd:Timer()
+  if not Game():IsPaused() then
+    -- The game runs at a locked 60fps, so we can calulate the time based on the number of frames that have passed
+    frames = frames + 1
+
+    -- Reset the timer every second
+    if frames % 60 == 0 then
+      seconds = seconds + 1
+      frames = 0
+    end
+  end
+end
+
+function wmd:Reset()
+  frames = 0
+  seconds = 0
+  totalDamage = 0
+end
+
+function wmd:OnDamageHit(target, amount, source, _dealer) 
+  if source == 0 and -- If the player caused the damage
+    target:IsActiveEnemy() and -- If the target entity is an enemy NPC
+    not target:IsInvincible() then
+    totalDamage = ToFixed(totalDamage + amount, 2)
+  end
+end
+
+-- Get the number to subtract from the G and B values (255 max), base on damage passed in
+function GetColorSubtraction(damage)
+  -- Damage range is from 10 to 100, so we need to scale that to the 0 - 255 range
+  local damageRange = 100 - 10
+  local colorRange = 255
+  local damageRatio = damage / damageRange
+  local colorSubtraction = colorRange * damageRatio
+
+  return colorSubtraction
+end
+
+-- Get actual DPS
+function CalculateDPS()
+  if seconds == 0 or totalDamage == 0 then
+    return 0
+  end
+
+  return ToFixed(totalDamage / seconds, 2)
+end
+
+-- This function calculates the players "functional" DPS based on their Damage and Fire Rate stat. This does NOT account for things like poison, bomb damage, etc.
+function FunctionalDPS()
+  local firedelay = Isaac.GetPlayer(0).MaxFireDelay
+  local damage = Isaac.GetPlayer(0).Damage
+
+  return ToFixed(damage * (5 / firedelay), 2)
+end
+
+function wmd:Render()
+  if screenSize == nil then
+    screenSize = (Isaac.WorldToScreen(Vector(320, 280)) - Game():GetRoom():GetRenderScrollOffset() - Game().ScreenShakeOffset) * 2
+  end
+
+  local dps = CalculateDPS()
+  local functionalDPS = FunctionalDPS()
+  local dpsColorSub = GetColorSubtraction(dps)
+  local fDPSColorSub = GetColorSubtraction(functionalDPS)
+
+  -- Draw to the bottom left of the screen (based on screen size)
+  Isaac.RenderText("Total Damage: " .. totalDamage, 10, screenSize.Y - 60, 255, 255, 255, 255)
+  Isaac.RenderText("Functional DPS: " .. functionalDPS, 10, screenSize.Y - 40, 255, 255 - fDPSColorSub, 255 - fDPSColorSub, 255)
+  Isaac.RenderText("DPS: " .. dps, 10, screenSize.Y - 20, 255, 255 - dpsColorSub, 255 - dpsColorSub, 255)
+
+  -- Also (for debugging) print the DPS
+  print("DPS: " .. dps)
+  print("Functional DPS: " .. functionalDPS)
+  print("Total Damage: " .. totalDamage)
+end
+
+wmd:AddCallback(ModCallbacks.MC_ENTITY_TAKE_DMG, wmd.OnDamageHit)
+wmd:AddCallback(ModCallbacks.MC_POST_RENDER, wmd.Render)
+wmd:AddCallback(ModCallbacks.MC_POST_RENDER, wmd.Timer)
+wmd:AddCallback(ModCallbacks.MC_POST_PLAYER_INIT, wmd.Reset)
+wmd:AddCallback(ModCallbacks.MC_POST_NEW_ROOM, wmd.Reset)