BoC: Added basic search function

eid_bagofcrafting_search.lua

@@ -0,0 +1,268 @@
+local indexCharMapping = " ??????'????,-./0123456789?;?????abcdefghijklmnopqrstuvwxyz"
+local searchValue = ""
+local searchInputEnabled = false
+local lastBackspaceTrigger = 0
+local backspaceStep = 0
+
+--- Returns the current search query
+-- @return string
+function EID:BoCSGetSearchValue()
+	return searchValue
+end
+
+--- Enables or disables the search input respectively
+-- @param newState boolean
+function EID:BoCSSetSearchInputEnabled(newState)
+	searchInputEnabled = newState
+
+	if newState then
+		EID:AddCallback(ModCallbacks.MC_INPUT_ACTION, EID.BoCSBlockInputAction)
+	else
+		EID:RemoveCallback(ModCallbacks.MC_INPUT_ACTION, EID.BoCSBlockInputAction)
+	end
+end
+
+--- Returns if the search input is enabled
+-- @returns boolean
+function EID:BoCSGetSearchInputEnabled()
+	return searchInputEnabled
+end
+
+--- Gets if the filtering is currently enabled
+function EID:BoCSGetSearchEnabled()
+	return true
+end
+
+--- Returns true if the item name is matched
+-- @returns boolean
+function EID:BoCSCheckItemName(itemName)
+	if searchValue == "" then
+		return true
+	end
+
+	return string.find(string.lower(itemName), string.lower(searchValue))
+end
+
+--- Handles any input done related to Bag of Crafting search
+function EID:BoCSHandleInput()
+	if Game():IsPaused() then
+		return
+	end
+
+	if EID.bagPlayer == nil then
+		return
+	end
+
+	if Input.IsButtonTriggered(Keyboard.KEY_ENTER, EID.bagPlayer.ControllerIndex, true) then
+		EID:BoCSSetSearchInputEnabled(not searchInputEnabled)
+		return
+	end
+
+	if searchInputEnabled then
+		local newValue = searchValue
+		local index = 0
+		local hasLetterInput = false
+
+		-- Keep in mind that this only works because the respective
+		-- enum values are integers
+		for i=Keyboard.KEY_SPACE,Keyboard.KEY_Z do
+			index = index + 1
+			if Input.IsButtonTriggered(i, EID.bagPlayer.ControllerIndex, true) then
+				local toAppend = string.upper(indexCharMapping:sub(index, index))
+
+				newValue = newValue .. toAppend
+				hasLetterInput = true
+
+				-- We only handle one input at a time
+				break
+			end
+
+			if hasLetterInput then
+				return
+			end
+		end
+
+		if Input.IsButtonTriggered(Keyboard.KEY_BACKSPACE, EID.bagPlayer.ControllerIndex, true) then
+			lastBackspaceTrigger = 0
+			backspaceStep = 0
+			return
+		end
+
+		local currentFrame = Game():GetFrameCount()
+		-- 30 Frames = 1 second
+		-- 15 = 500ms
+		if Input.IsButtonPressed(Keyboard.KEY_BACKSPACE, EID.bagPlayer.ControllerIndex, true) and (
+			backspaceStep == 0
+			or
+			(backspaceStep == 1 and currentFrame - lastBackspaceTrigger > 15) -- we delay the second deletion a little bit more
+			or
+			(backspaceStep >= 2 and currentFrame - lastBackspaceTrigger > 3)
+		) then
+			local isControlPressed = (
+				Input.IsButtonPressed(Keyboard.KEY_LEFT_CONTROL, EID.bagPlayer.ControllerIndex, true)
+				or
+				Input.IsButtonPressed(Keyboard.KEY_RIGHT_CONTROL, EID.bagPlayer.ControllerIndex, true)
+			)
+
+			if isControlPressed then
+				newValue = ""
+			else
+				newValue = searchValue:sub(1, -2)
+			end
+
+			lastBackspaceTrigger = currentFrame
+			backspaceStep = backspaceStep + 1
+		end
+
+		searchValue = newValue
+	end
+end
+
+---  Returns the line that should be displayed inside of the menu
+function EID:BoCSGetSearchLine()
+	if not searchInputEnabled and (searchValue == nil or searchValue == "") then
+		return nil
+	end
+
+	local result = ""
+
+	if searchInputEnabled then
+		result = "{{ColorGreen}}"
+	end
+
+	result = result .. "Search: " .. searchValue .. "#"
+
+	return result
+end
+
+---
+-- This is a workaround to block every single Input call that could potentially be
+-- used from another mod.
+-- We override the Input functions with our own stubs to prevent other mods from
+-- doing actions while the user is performing a search.
+-- This does NOT block the main game from performing actions like toggling fullscreen
+-- or toggling the pause!--
+-- Since this could be useful for multiple reasons, this should probably be put
+-- inside the main.lua instead of leaving this here
+-- Hooking multiple times WILL impact the performance!--
+-- I've also added a third parameter called "force"
+-- This way, we are still able to force the real function to be called instead
+-- of our modified code--
+-- This code should not impact the performance in a huge way
+-- since the first thing we do is check if the searchInput is enabled anyway
+-- We can allow losing a bit of performance when searching
+function EID:BoCSHookInput()
+	local oldInputIsButtonTriggered = Input.IsButtonTriggered
+	local oldInputIsButtonPressed = Input.IsButtonPressed
+	local oldInputIsActionTriggered = Input.IsActionTriggered
+	local oldInputIsActionPressed = Input.IsActionPressed
+
+	Input.IsButtonTriggered = function(key, controller, force)
+		if force or not searchInputEnabled then
+			return oldInputIsButtonTriggered(key, controller)
+		end
+
+		local bagPlayer = nil
+		if EID.isRepentance then
+			local hasBag, player = EID:PlayersHaveCollectible(710)
+			if hasBag then
+				bagPlayer = player
+			end
+		end
+
+		if bagPlayer == nil or controller ~= bagPlayer.ControllerIndex then
+			return oldInputIsButtonTriggered(key, controller)
+		end
+
+		return false
+	end
+
+	Input.IsButtonPressed = function(key, controller, force)
+		if force or not searchInputEnabled then
+			return oldInputIsButtonPressed(key, controller)
+		end
+
+		local bagPlayer = nil
+		if EID.isRepentance then
+			local hasBag, player = EID:PlayersHaveCollectible(710)
+			if hasBag then
+				bagPlayer = player
+			end
+		end
+
+		if bagPlayer == nil or controller ~= bagPlayer.ControllerIndex then
+			return oldInputIsButtonPressed(key, controller)
+		end
+
+		return false
+	end
+
+	Input.IsActionTriggered = function(key, controller, force)
+		if force or not searchInputEnabled then
+			return oldInputIsActionTriggered(key, controller)
+		end
+
+		local bagPlayer = nil
+		if EID.isRepentance then
+			local hasBag, player = EID:PlayersHaveCollectible(710)
+			if hasBag then
+				bagPlayer = player
+			end
+		end
+
+		if bagPlayer == nil or controller ~= bagPlayer.ControllerIndex then
+			return oldInputIsActionTriggered(key, controller)
+		end
+
+		return false
+	end
+
+	Input.IsActionPressed = function(key, controller, force)
+		if force or not searchInputEnabled then
+			return oldInputIsActionPressed(key, controller)
+		end
+
+		local bagPlayer = nil
+		if EID.isRepentance then
+			local hasBag, player = EID:PlayersHaveCollectible(710)
+			if hasBag then
+				bagPlayer = player
+			end
+		end
+
+		if bagPlayer == nil or controller ~= bagPlayer.ControllerIndex then
+			return oldInputIsActionPressed(key, controller)
+		end
+
+		return false
+	end
+
+	Isaac.DebugString("Hooked Input")
+end
+
+--- Blocks all input actions triggered by the games bindings itself
+function EID:BoCSBlockInputAction(entity, inputHook, buttonAction)
+	local bagPlayer = nil
+	if EID.isRepentance then
+		local hasBag, player = EID:PlayersHaveCollectible(710)
+		if hasBag then
+			bagPlayer = player
+		end
+	end
+
+	if bagPlayer == nil then
+		return nil
+	end
+
+	if inputHook == InputHook.GET_ACTION_VALUE then
+		return 0
+	end
+
+	if inputHook == InputHook.IS_ACTION_PRESSED or inputHook == InputHook.IS_ACTION_TRIGGERED then
+		return false
+	end
+
+	return nil
+end
+
+EID:BoCSHookInput()