1 files changed, 201 insertions, 0 deletions
diff --git a/not/Controller.lua b/not/Controller.lua
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+++ b/not/Controller.lua
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+--- `Controller`
+-- Module to manage player input. 
+-- It uses `love.keypressed`, `love.keyreleased`, `love.gamepadreleased`, `love.gamepadpressed`, `love.joystickadded`, so be sure not to use them by yourself.
+-- Rather than that use functions provided by this module: `Controller.controlpressed` and `Controller.controlreleased`.
+Controller = {
+	sets = {},
+	axes = {},
+	deadzone = .3
+}
+
+-- Declared to avoid calling nil. Be sure to define yours after this line is performed.
+function Controller.controlpressed(set, action, key) end
+function Controller.controlreleased(set, action, key) end
+
+-- Create new controls set.
+function Controller.registerSet(left, right, up, down, attack, jump, joystick)
+	if not Controller.isJoystickUnique(joystick) then return end
+	local set = {}
+	set.left = left or "left"
+	set.right = right or "right"
+	set.up = up or "up"
+	set.down = down or "down"
+	set.attack = attack or "return"
+	set.jump = jump or "rshift"
+	set.joystick = joystick
+	table.insert(Controller.sets, set)
+	print(set, left, right, up, down, attack, jump, joystick)
+	return set
+end
+
+-- Reset table of controls sets.
+function Controller.reset()
+	local t = {}
+	Controller.sets = t
+end
+
+-- Get table of controls sets.
+function Controller.getSets()
+	return Controller.sets
+end
+
+-- Checks if given joystick is unique in current set of Controller sets
+function Controller.isJoystickUnique(joystick)
+	if joystick ~= nil then
+		for _,set in pairs(Controller.sets) do
+			if set.joystick == joystick then return false end
+		end
+	end
+	return true
+end
+
+-- Tests all sets if they have control assigned to given key and joystick.
+function Controller.testSets(key, joystick)
+	for i,set in pairs(Controller.sets) do
+		local action = Controller.testControl(set, key, joystick)
+		if action ~= nil then
+			return set, action
+		end
+	end
+	return nil, nil
+end
+
+-- Tests given set if it has controll assigned to given key and joystick.
+function Controller.testControl(set, key, joystick)
+	-- First test if it is joystick and if it is correct one
+	if joystick == set.joystick then
+		if key == set.left then
+			return "left"
+		elseif key == set.right then
+			return "right"
+		elseif key == set.up then
+			return "up"
+		elseif key == set.down then
+			return "down"
+		elseif key == set.attack then
+			return "attack"
+		elseif key == set.jump then
+			return "jump"
+		end
+	end
+end
+
+-- Checks if given action of given set is down
+function Controller.isDown(set, action)
+	if set ~= nil then
+		if set.joystick == nil then
+			return love.keyboard.isDown(set[action])
+		else
+			if not Controller.isAxis(set[action]) then
+				return set.joystick:isGamepadDown(set[action])
+			else
+				return Controller.getAxisState(set.joystick, set[action])
+			end
+		end
+	end
+end
+
+-- Return key name from given axis and value
+function Controller.createAxisName(axis, value)
+	local key = "axis:"..axis
+	if value == 0 then 
+		key = key.."0"
+	elseif value > 0 then
+		key = key.."+" 
+	else
+		key = key.."-"
+	end
+	return key
+end
+
+-- Checks if given key is an axis
+function Controller.isAxis(key)
+	if string.find(key, "axis:") then
+		return true
+	else 
+		return false 
+	end
+end
+
+-- Checks state of key assigned to axis of given joystick
+function Controller.getAxisState(joystick, key)
+	if Controller.axes[joystick] then
+		local state = Controller.axes[joystick][key]
+		if state ~= nil then
+			return state
+		else
+			return false
+		end
+	end
+end
+
+-- Sets state of key assigned to axis of given joystick
+function Controller.setAxisState(joystick, key, state)
+	if Controller.axes[joystick] == nil then
+		Controller.axes[joystick] = {}
+	end
+	Controller.axes[joystick][key] = state
+end
+
+-- Simulate pressing key on an axis
+function Controller.axisPress(joystick, axis, value)
+	local key = Controller.createAxisName(axis, value)
+	local set, action = Controller.testSets(key, joystick)
+	local state = Controller.getAxisState(joystick, key)
+	if not state then
+		print(joystick, set, action, key)
+		Controller.setAxisState(joystick, key, true)
+		Controller.controlpressed(set, action, key)
+	end
+end
+
+-- Simulate releasing key on an axis
+function Controller.axisRelease(joystick, axis, value)
+	local key = Controller.createAxisName(axis, value)
+	local set, action = Controller.testSets(key, joystick)
+	local state = Controller.getAxisState(joystick, key)
+	if state then
+		Controller.setAxisState(joystick, key,false)
+		Controller.controlreleased(set, action, key)
+	end
+end
+
+-- Callbacks from LÖVE2D
+-- Load gamepad mappings from db file and init module
+function Controller.load()
+	love.joystick.loadGamepadMappings("gamecontrollerdb.txt")
+end
+
+-- Gamepad input callbacks
+function Controller.gamepadaxis(joystick, axis, value)
+	if value ~= 0 then
+		if math.abs(value) > Controller.deadzone then
+			Controller.axisPress(joystick, axis, value)
+		else
+			Controller.axisRelease(joystick, axis, value)
+		end
+	else
+		Controller.axisRelease(joystick, axis, 1)
+		Controller.axisRelease(joystick, axis, -1)
+	end
+end
+function Controller.gamepadpressed(joystick, key)
+	local set, action = Controller.testSets(key, joystick)
+	print(joystick, set, action, key)
+	Controller.controlpressed(set, action, key)
+end
+function Controller.gamepadreleased(joystick, key)
+	local set, action = Controller.testSets(key, joystick)
+	Controller.controlreleased(set, action, key)
+end
+
+-- Keyboard input callbacks
+function Controller.keypressed(key)
+	local set, action = Controller.testSets(key, nil)
+	print(nil, set, action, key)
+	Controller.controlpressed(set, action, key)
+end
+function Controller.keyreleased(key)
+	local set, action = Controller.testSets(key, nil)
+	Controller.controlreleased(set, action, key)
+end
+\ No newline at end of file