big chungus commit

core/atlas.lua

@@ -29,14 +29,14 @@ function atlas.assign(element)
 	local elH = element.view.h
 	local canvas, quad = createdAtlas:assignElement(element)
 	if not canvas and createdAtlas.ideal_area < createdAtlas.taken_area*4 then
-		print('refragmenting ;3')
+		--print('refragmenting ;3')
 		createdAtlas:refragment()
 		canvas, quad = createdAtlas:assignElement(element)
 		if not canvas then
-			print('ran out of space')
+			--print('ran out of space')
 		end
 	else
-		print('wont refragment', createdAtlas.ideal_area, createdAtlas.taken_area)
+		--print('wont refragment', createdAtlas.ideal_area, createdAtlas.taken_area)
 	end
 	return canvas, quad
 end
@@ -206,6 +206,7 @@ end
 function atlas:unassignElement(element)
 	local user = self.users[element]
 	self:unMarkTiles(user.x, user.y, user.w, user.h)
+	self.taken_area = self.taken_area - ((user.w*BLOCK_SIZE)*(user.h*BLOCK_SIZE))
 	self.users[element] = nil
 end
 

core/element.lua

@@ -19,7 +19,7 @@ setmetatable(element, {
 			self.parentFunc = func
 
 			self:new(param,nil, w, h)
-			self:createProxies(param)
+			self:createProxies()
 
 			return self
 		end
@@ -29,7 +29,6 @@ setmetatable(element, {
 --The new function that should be used for element creation
 function element:new(param, immediate, w, h)
 	self.parameters = {}
-
 	self.baseParams = param
 
 	--Internal settings
@@ -57,28 +56,48 @@ function element:new(param, immediate, w, h)
 	self.renderBench = {
 
 	}
-
 	self.baseView = {
 		x = 0,
 		y = 0,
 		w = w or 10,
 		h = h or 10,
-		minW = w or 10,
+		minW = w or 0,
-		minH = h or 10,
+		minH = h or 0,
 	}
 
-
+	self.size = setmetatable({}, {__index = function(t, index)
+		return self.baseView[index]
+	end,})
 
 	self.view = self.baseView
-
 end
 
-function element:sizeChange()
+function element:sizeChange(i, v)
+	local increase = self.baseView[i] < v
 
+	if i == 'w' then
+		self.baseView.w = math.max(self.baseView.minW, v)
+	else
+		self.baseView.h = math.max(self.baseView.minH, v)
+	end
+	
+	--defer resize
+	if self.deferResize then
+		if not self.deferResize.increased then
+			self.deferResize.increased = increase
+		end
+	else
+		self.deferResize = { increased = increase }
+	end
 end
 
-function element:posChange()
+function element:posChange(i, v)
+	self.baseView[i] = v
+		--defer resize
 
+	if not self.deferRepos then
+		self.deferRepos = true
+	end
 end
 
 function element:onUpdate()
@@ -104,14 +123,12 @@ function element:createProxies()
 		end,
 		__newindex = function(t, index, val)
 			if self.baseView[index] ~= val then
-				self.baseView[index] = val
 				if index=='w' or index=='h' then
-					self:sizeChange()
+					self:sizeChange(index, val)
 				else
-					self:posChange()
+					self:posChange(index, val)
 				end
 				self.context:bubbleUpdate()
-				self:updateInputCtx()
 			end
 		end
 	})
@@ -142,14 +159,22 @@ function element.setBench(time)
 	selfRenderTime = time
 end
 
-function element:calculateCanvasCoeficient(selfTime)
+function element:calculateCanvasCoeficient()		
+	local avg, sum = 0, 0
+
+	for i, e in ipairs(self.renderBench) do
+		sum = sum + e
+	end
+
+	avg = sum/#self.renderBench
+	
 	local sW, sH = love.graphics.getDimensions()
 	local areaBelow = helium.atlas.getFreeArea()
-	local area = self.view.h * self.view.w
+	local area = self.view.h*self.view.w
 
-	local areaCoef = (2-(helium.atlas.getRatio())) - (area/(areaBelow/(4+3*helium.atlas.getRatio())))
+	local areaCoef = (2-(helium.atlas.getRatio()) )-(area/(areaBelow/(4+3*helium.atlas.getRatio())))
 	local childCoef = self.context:getChildrenCount()/childrenNum
-	local sizeCoef = selfTime/selfRenderTime
+	local sizeCoef = avg/selfRenderTime
 	
 	return (areaCoef+childCoef+sizeCoef)>coefficient
 end
@@ -163,6 +188,7 @@ function element:createCanvas()
 
 	if not self.canvas then
 		self.settings.failedCanvas = true
+		self.settings.hasCanvas = false
 		return
 	end
 	self.settings.hasCanvas = true
@@ -180,27 +206,6 @@ function element:setCalculatedSize(w, h)
 	self.view.h = math.max(self.view.minH, self.view.h)
 end
 
-function element:updateInputCtx()
-	self.context.inputContext:update()
-	--[[if self.settings.canvasW then
-		--If canvas too small make a bigger one
-		if self.settings.canvasW < self.view.w or self.settings.canvasH < self.view.h then
-			self.settings.canvasW = self.view.w*1.25
-			self.settings.canvasH = self.view.h*1.25
-
-			self.canvas = love.graphics.newCanvas(self.view.w*1.25, self.view.h*1.25)
-		--If canvas too big make a smaller one
-		elseif self.settings.canvasW > self.view.w*1.50 or self.settings.canvasH > self.view.h*1.50 then
-			self.settings.canvasW = self.view.w*1.25
-			self.settings.canvasH = self.view.h*1.25
-			
-			self.canvas = love.graphics.newCanvas(self.view.w*1.25, self.view.h*1.25)
-		end
-	
-		self.quad = love.graphics.newQuad(0, 0, self.view.w, self.view.h, self.settings.canvasW, self.settings.canvasH)
-	end]]
-end
-
 local dummy = function() end
 --Immediate mode code(don't call directly)
 function element.immediate(param, func, x, y, w, h)
@@ -209,7 +214,7 @@ function element.immediate(param, func, x, y, w, h)
 	local ctx = context.getContext()
 	if ctx then
 		local self = setmetatable({}, element)
-		self = element:new(param, true)
+		self = self:new(param, true)
 	else
 		error("Can't render immediate outside of persistent")
 	end
@@ -218,7 +223,7 @@ end
 --Called once dimensions are validated
 function element:setup()
 	self.context:set()
-	self.renderer = self.parentFunc(self.parameters, self.view.w, self.view.h)
+	self.renderer = self.parentFunc(self.parameters, self.size)
 	self.context:unset()
 
 	self.settings.isSetup = true
@@ -302,20 +307,12 @@ function element:externalRender()
 end
 
 function element:externalUpdate()
+	self.context:zIndex()
 	if not self.settings.failedCanvas and self.settings.testRenderPasses == 0 and not self.settings.hasCanvas then
-		local avg, sum = 0, 0
 
-		for i, e in ipairs(self.renderBench) do
+		if self:calculateCanvasCoeficient() then
-			sum = sum + e
-		end
-
-		avg = sum/#self.renderBench
-
-		if self:calculateCanvasCoeficient(avg) then
-			love.graphics.push()
-			love.graphics.origin()
 			self:createCanvas()
-			love.graphics.pop()
+
 			self.settings.pendingUpdate = true
 		else
 			self.settings.failedCanvas = true
@@ -327,6 +324,27 @@ function element:externalUpdate()
 		self.settings.pendingUpdate  = false
 	end
 
+	if self.deferResize then
+		self.context:sizeChanged()
+		if self.settings.hasCanvas then 
+			helium.atlas.unassign(self)
+
+			if self:calculateCanvasCoeficient() then
+				self:createCanvas()
+			else
+				self.settings.hasCanvas = false
+				self.canvas = nil
+				self.quad = nil
+				self.deferResize = nil
+			end
+		end
+	end
+
+	if self.deferRepos then
+		self.context:posChanged()
+		self.deferRepos = false
+	end
+
 	return self.settings.remove
 end
 
@@ -337,21 +355,20 @@ local insert = table.insert
 ---@param x number
 ---@param y number
 function element:draw(x, y, w, h)
-	if not self.view.lock then
 	if x then self.view.x = x end
 	if y then self.view.y = y end
-		if w then self.view.w = self.view.minW<=w and w or self.view.minW end
+	if w then self.view.w = w end
-		if h then self.view.h = self.view.minH<=h and h or self.view.minH end
+	if h then self.view.h = h end
-	end
 
-	if context.getContext() then
+	local cx = context.getContext()
-		if context.getContext().childRender(self) then
+	if cx then
+		if cx:childRender(self) then
 			self:externalUpdate()
 			self:externalRender()
 		end
 	elseif not self.settings.inserted then
 		self.settings.inserted = true
-		insert(helium.elementBuffer, self)
+		insert(helium.elementInsertionQueue, self)
 	end
 
 	if self.settings.firstDraw then
@@ -360,6 +377,10 @@ function element:draw(x, y, w, h)
 	end
 end
 
+function element:getSize()
+	return self.view.w, self.view.h
+end
+
 function element:destroy()
 	self.settings.remove  = true
 	self.settings.firstDraw = true

core/events.lua

@@ -9,45 +9,31 @@ function eventClass.new()
 	return setmetatable(self, eventClass)
 end
 
-function eventClass:sub(name, func)
+function eventClass:newQueue(name)
-	local sub = { func = func }
+	self.eventSubs[name] = {}
-
-	self:provideQueue(name)
-	self.eventSubs[name][func] = func
-
-	return sub
 end
 
-function eventClass:push(name, event)
+--Data is the individualized table to pass to each subscriber (or middleware)
-	if self.eventSubs[name] then
+function eventClass:sub(name, func, data)
-		table.insert(self.eventSubs[name].queue, event)
+	self.eventSubs[name][func] = {func = func, data = data}
+	
+	return func
+end
+
+function eventClass:unsub(name, func)
+	self.eventSubs[name][func] = nil
+end
+
+function eventClass:push(name, evntData)
+	local pushData = evntData
+	for i, e in pairs(self.eventSubs[name]) do
+		if self.eventSubs[name].beforeEach then
+			pushData = self.eventSubs[name].beforeEach(e.data, evntData) or evntData
+		end
+
+		e.func(pushData)
 	end
 end
 
-function eventClass:flush(name)
-
-end
-
-function eventClass:flushAll()
-	for i, subs in pairs(self.eventSubs) do
-		local assembledEvent = {}
-		
-		for i, e in ipairs(subs.queue) do
-
-		end
-	end
-end
-
-function eventClass:provideQueue(name)
-	if not self.eventSubs[name] then
-		self.eventSubs[name] = {
-			queue = {}
-		}
-	end
-end
-
-function eventClass:unsub(name, event)
-	self.eventSubs[name][event] = nil
-end
 
 return eventClass

core/input.lua

@@ -1,47 +1,29 @@
 local path   = string.sub(..., 1, string.len(...) - string.len(".core.input"))
-local helium = require(path .. ".dummy")
+local stack = require(path .. ".core.stack")
 
-local input={
+local input = {
 	eventHandlers = {},
 	subscriptions = {},
 	activeEvents  = {}
 }
 input.__index = input
 
-local windowMachine = {}
+local function sortFunc(t1, t2)
-windowMachine.__index = windowMachine
+	if t1.stack.temporalZ.z == t2.stack.temporalZ.z then
-local windowCurrent = false
+		print('same Z ???',t1.stack.temporalZ.z, t2.stack.temporalZ.z)
-
---Go forward
-windowMachine.push = function(window)
-	windowMachine[#windowMachine+1] = window
-	windowCurrent = #windowMachine
-end
-
---Go a level back
-windowMachine.pop = function()
-	windowMachine[#windowMachine] = nil
-	if windowCurrent>1 then
-		windowCurrent = windowCurrent-1
-	else
-		windowCurrent = false
 	end
-end
+	if t1 == t2 then
-
+		print(tostring(t1), tostring(t2))
-windowMachine.get = function()
+		return false
-	if windowCurrent then
-		return windowMachine[windowCurrent]
 	end
+	return t1.stack.temporalZ.z > t2.stack.temporalZ.z
 end 
 
-local activeWindow
+function input.sortZ()
-local windowStack = {}
+	for i, subs in pairs(input.subscriptions) do
-
+		table.sort(subs, sortFunc)
-function input.unload()
+		print(#subs)
-	windowStack = {}
+	end
-	activeWindow = nil
-	windowMachine = {}
-	input.subscriptions = {}
 end
 
 local dummyfunc = function() end
@@ -49,11 +31,10 @@ local dummyfunc = function() end
 local subscription   = {}
 subscription.__index = subscription
 
----@class inputContext
+function input.unload()
-local context   = {}
+	input.subscriptions = {}
-context.__index = context
+	input.activeEvents = {}
-
+end
-local activeContext
 
 --[[Event types
 	###SIMPLE EVENTS###
@@ -73,80 +54,6 @@ local activeContext
 
 
 ]]
-function input.newContext(element)
-	local ctx = setmetatable({elem = element, subs = {}, childContexts={}}, context)
-
-	return ctx
-end
-
-function context:set()
-	self.activeWindow = windowMachine.get()
-
-	if activeContext and activeContext~=self then
-		if not self.parentCtx then
-			activeContext.childContexts[#activeContext.childContexts+1] = self
-			self.parentCtx = activeContext
-		end
-		self.absX      = self.parentCtx.absX + self.elem.view.x
-		self.absY      = self.parentCtx.absY + self.elem.view.y
-		activeContext  = self
-	else
-		self.absX     = self.elem.view.x
-		self.absY     = self.elem.view.y
-		activeContext = self
-	end
-end
-
-function context:update()
-	if self.parentCtx then
-		self.absX      = self.parentCtx.absX + self.elem.view.x
-		self.absY      = self.parentCtx.absY + self.elem.view.y
-	else
-		self.absX = self.elem.view.x
-		self.absY = self.elem.view.y
-	end
-	for i, e in ipairs(self.childContexts) do
-		e:update()
-	end
-	for i, sub in ipairs(self.subs) do
-		sub:contextUpdate(self.absX,self.absY,self)
-	end
-end
-
-function context:unset()
-	if self.parentCtx then
-		activeContext = self.parentCtx
-	else
-		activeContext = nil
-	end
-
-end
-
-function context:afterLoad()
-	--If i created window, pop it
-	if self.window then 
-		windowMachine.pop()
-	end
-end
-
-function context:unsuspend()
-	for i, e in ipairs(self.subs) do
-		e:unsuspend()
-	end
-	for i, e in ipairs(self.childContexts) do
-		e:unsuspend()
-	end
-end
-
-function context:suspend()
-	for i, e in ipairs(self.subs) do
-		e:suspend()
-	end
-	for i, e in ipairs(self.childContexts) do
-		e:suspend()
-	end
-end
-
 ---@param x number
 ---@param y number
 ---@param w number
@@ -156,70 +63,45 @@ end
 ---@param doff boolean
 ---@return subscription
 function subscription.create(x, y, w, h, eventType, callback, doff)
-	local sub
+	local stack = stack.getContext()
-	if activeContext then
+	local xn, yn = stack:normalizePos(x, y)
-		local wratio,hratio,xratio,yratio
+	local wn, hn = stack:normalizeSize(w, h)
-		if x<=1 and x~=0 then
-			xratio = x
-			x = activeContext.elem.view.w * x
-		end
 
-		if y<=1 and y~=0 then
+	local sub = setmetatable({
-			yratio = y
+		x         = xn,
-			y = activeContext.elem.view.h * y
+		y         = yn,
-		end
+		w         = wn,
-		
+		h         = hn,
-		if w<=1 and w~=0 then
+		origX     = x,
-			wratio = w
+		origY     = y,
-			w = activeContext.elem.view.w * w
+		origW     = w,
-		end
+		origH     = h,
-
-		if h<=1 and h~=0 then
-			hratio = h
-			h = activeContext.elem.view.h * h
-		end
-
-		sub = setmetatable({
-			x         = activeContext.absX + x,
-			y         = activeContext.absY + y,
-			w         = w,
-			h         = h,
-			wratio = wratio,
-			hratio = hratio,
-			xratio = xratio,
-			yratio = yratio,
-			ix        = x,
-			iy        = y,
 		eventType = eventType,
 		active    = true,
+		stack     = stack,
 		callback  = callback
 	},subscription)
 
+	sub.onSizeChange = stack:onSizeChange(function()
+		sub.w, sub.h = sub.stack:normalizeSize(sub.origW, sub.origH)
+	end)
+	
+	sub.onPosChange = stack:onPosChange(function()
+		sub.x, sub.y = sub.stack:normalizePos(sub.origX, sub.origY)
+		print(sub.y, sub.stack.absY)
+	end)
+
 	if doff == false then
 		sub:off()
 	end
 
-		if activeContext.window or activeContext.activeWindow then
-			sub.parentWindow = activeContext.window or activeContext.activeWindow
-		end
-		activeContext.subs[#activeContext.subs+1] = sub
-	else
-		sub = setmetatable({
-			x         = x,
-			y         = y,
-			w         = w,
-			h         = h,
-			eventType = eventType,
-			active    = doff or true,
-			callback  = callback
-		},subscription)
-	end
-
 	if not input.subscriptions[eventType] then
 		input.subscriptions[eventType] = {}
 	end
 
-	input.subscriptions[eventType][#input.subscriptions[eventType]+1] = sub
+	table.insert(input.subscriptions[eventType],1,sub)
+
+	input.sortZ()
 
 	return sub
 end
@@ -232,40 +114,9 @@ function subscription:on()
 	self.active = true
 end
 
-function subscription:suspend()
+function subscription:remove()
-	self.destroyStat = true
+	--input.subscriptions[self.eventType][self] = nil
-	self.preActive = self.active
+	input.sortZ()
-	self.active = false
-end
-
-function subscription:unsuspend()
-	self.active = self.preActive
-end
-
-function subscription:contextUpdate(absX, absY,activeContext)
-	if self.xratio then
-		self.x = absX + activeContext.elem.view.w * self.xratio
-	else
-		self.x = absX + self.ix
-	end
-	if self.yratio then
-		self.y = absY + activeContext.elem.view.h * self.yratio
-	else
-		self.y = absY + self.iy
-	end
-	if self.hratio then
-		self.h = activeContext.elem.view.h * self.hratio
-	end
-	if self.wratio then
-		self.w = activeContext.elem.view.w * self.wratio
-	end
-end
-
-function subscription:update(x, y, w, h)
-	self.x = x or self.x
-	self.y = y or self.y
-	self.w = w or self.w
-	self.h = h or self.h
 end
 
 function subscription:emit(...)
@@ -297,73 +148,11 @@ input.__call = function(self, eventType, callback, cbOff, x, y, w, h)
 	return subscription.create(x,y,w,h,eventType,callback,cbOff)
 end
 
---Will block ui clicks from going through it
-input.window = function(x,y,w,h)
-	x = x or 0
-	y = y or 0
-	w = w or 1
-	h = h or 1
-
-	activeContext.window = subscription.create(x,y,w,h,'window',nil,false)
-	windowMachine.push(activeContext.window)
-	windowStack[#windowStack+1] = activeContext.window
-	return activeContext.window
-end
-
---Run once per applicable event
---The windows should be basically pre sorted, so if something is a hit on a lower window
---And is on a higher one too, the lower one is discarded 
-local hits = {}
-input.checkWindows = function(x,y)
-	local hit = false
-	for i = 1, #windowStack do
-		if windowStack[i]:checkInside(x,y) and windowStack[i].active then
-			hit = windowStack[i]
-		end
-	end
-	--Returns latest hit
-	return hit
-end
-
---Run per sub
-function input.checkSub(sub,hit)
-	if sub.parentWindow and sub.parentWindow == hit then
-		return true
-	elseif not hit then
-		return true
-	end
-	return false
-end
-
 --Since the introduction of the relative subscriptions, there is more utility in ommiting coordinates by default
 setmetatable(input, input)
 
 function input.eventHandlers.mousereleased(x, y, btn)
 	local captured = false
-	local hit = input.checkWindows(x, y)
-	if input.subscriptions.mousereleased then
-		for index, sub in ipairs(input.subscriptions.mousereleased) do
-			--local succ = sub:checkInside(x, y)
-
-			if sub.active and sub:checkInside(x, y) and input.checkSub(sub,hit) then -- succ and sub:check
-				sub:emit(x, y, btn)
-				captured = true
-			end
-
-		end
-	end
-	if input.subscriptions.mousereleased_outside then
-		for index, sub in ipairs(input.subscriptions.mousereleased_outside) do
-			--local succ = sub:checkOutside(x, y)
-
-			if sub.active and sub:checkOutside(x, y) and input.checkSub(sub,hit) then -- succ and sub.active then
-				sub:emit(x, y, btn)
-				captured = true
-			end
-
-		end
-	end
-
 	if input.subscriptions.clicked then
 		for index, sub in ipairs(input.subscriptions.clicked) do
 			if sub.currentEvent then
@@ -388,44 +177,40 @@ function input.eventHandlers.mousereleased(x, y, btn)
 		end
 	end
 
+	if input.subscriptions.mousereleased then
+		for index, sub in ipairs(input.subscriptions.mousereleased) do
+			if sub.active and sub:checkInside(x, y) then
+				sub:emit(x, y, btn)
+				captured = true
+			end
+
+		end
+	end
+
+	if input.subscriptions.mousereleased_outside then
+		for index, sub in ipairs(input.subscriptions.mousereleased_outside) do
+			if sub.active and sub:checkOutside(x, y) then
+				sub:emit(x, y, btn)
+				captured = true
+			end
+
+		end
+	end
+
 	return captured
 end
 
-
-
 function input.eventHandlers.mousepressed(x, y, btn)
 	local captured = false
-	local hit = input.checkWindows(x, y)
-	if input.subscriptions.mousepressed then
-		for index, sub in ipairs(input.subscriptions.mousepressed) do
-			--local succ = sub:checkInside(x, y)
 
-			if sub.active and sub:checkInside(x, y) and input.checkSub(sub,hit) then -- succ and sub:check
-				sub:emit(x, y, btn)
-				captured = true
-			end
-
-		end
-	end
-	if input.subscriptions.mousepressed_outside then
-		for index, sub in ipairs(input.subscriptions.mousepressed_outside) do
-			--local succ = sub:checkOutside(x, y)
-
-			if sub.active and sub:checkOutside(x, y) and input.checkSub(sub,hit) then -- succ and sub.active then
-				sub:emit(x, y, btn)
-				captured = true
-			end
-
-		end
-	end
 	if input.subscriptions.clicked then
 		for index, sub in ipairs(input.subscriptions.clicked) do
 			local succ = sub:checkInside(x, y)
 
-			if succ and sub.active and input.checkSub(sub,hit) then
+			if succ and sub.active then
 				sub.cleanUp      = sub:emit(x, y, btn) or dummyfunc
 				sub.currentEvent = true
-				captured         = true
+				return true
 			end
 
 		end
@@ -433,16 +218,33 @@ function input.eventHandlers.mousepressed(x, y, btn)
 	
 	if input.subscriptions.dragged then
 		for index, sub in ipairs(input.subscriptions.dragged) do
-			--local succ = sub:checkInside(x, y)
+			if sub.active and sub:checkInside(x, y) then 
-
-			if sub.active and sub:checkInside(x, y) and input.checkSub(sub,hit) then -- succ and sub:check
 				sub.currentEvent = true
-				captured         = true
+				return true
 			end
 
 		end
 	end
 
+	if input.subscriptions.mousepressed then
+		for index, sub in ipairs(input.subscriptions.mousepressed) do
+			if sub.active and sub:checkInside(x, y) then 
+				sub:emit(x, y, btn)
+				return true
+			end
+
+		end
+	end
+
+	if input.subscriptions.mousepressed_outside then
+		for index, sub in ipairs(input.subscriptions.mousepressed_outside) do
+			if sub.active and sub:checkOutside(x, y) then
+				sub:emit(x, y, btn)
+				return true
+			end
+
+		end
+	end
 	return captured
 end
 
@@ -450,7 +252,7 @@ function input.eventHandlers.keypressed(btn)
 	local captured = false
 	if input.subscriptions.keypressed then
 		for index, sub in ipairs(input.subscriptions.keypressed) do
-			if sub.active then -- ==true then
+			if sub.active then
 				sub:emit( btn)
 				captured = true
 			end
@@ -485,13 +287,13 @@ function input.eventHandlers.mousemoved(x, y, dx, dy)
 			if sub.active and not sub.currentEvent and succ then
 				sub.cleanUp      = sub:emit(x, y, dx, dy) or dummyfunc
 				sub.currentEvent = true
-				captured         = true
+				return true
 			elseif sub.currentEvent and not succ then
 				sub.currentEvent = false
-				captured         = true
 				if sub.cleanUp then
 					sub.cleanUp(x, y)
 				end
+				return true
 			end
 		end
 	end
@@ -505,8 +307,8 @@ function input.eventHandlers.mousemoved(x, y, dx, dy)
 				else
 					sub:emit(x, y, dx, dy)
 				end
-				--sub.currentEvent = true -- checked in the condition so must be true
+
-				captured         = true
+				return true
 			end
 
 		end

core/stack.lua

@@ -2,12 +2,14 @@
 
 local path = string.sub(..., 1, string.len(...) - string.len(".core.stack"))
 local helium = require(path .. ".dummy")
+local event = require(path..'.core.events')
 
 ---@class context
 local context = {}
 context.__index = context
 
 local activeContext
+local currentTemporalZ = 0
 
 ---@param elem element
 function context.new(elem)
@@ -15,12 +17,16 @@ function context.new(elem)
         view = elem.view,
         element = elem,
         childrenContexts = {},
-		inputContext = helium.input.newContext(elem),
 		childRenderTime = 0,
 		deferChildren = false,
+		events = event.new(),
 		capturedChilds = {},
+		temporalZ = {z = nil},
 	}, context)
 	
+	ctx.events:newQueue('resize')
+	ctx.events:newQueue('poschange')
+
     return ctx
 end
 
@@ -56,14 +62,9 @@ function context:set()
 
         activeContext  = self
     end
-    
-    self.inputContext:set()
 end
 
 function context:unset()
-	self.inputContext:unset()
-    self.inputContext:afterLoad()
-
     if self.parentCtx then
         activeContext = self.parentCtx
     else
@@ -71,8 +72,9 @@ function context:unset()
     end
 end
 
-function context:unsuspend()
+function context:zIndex()
-    self.inputContext:unsuspend()
+	currentTemporalZ = currentTemporalZ+1
+	self.temporalZ.z = currentTemporalZ
 end
 
 function context:startSelfRender()
@@ -97,12 +99,6 @@ function context:destroy()
     end
 end
 
-function context:suspend()
-	self.inputContext:set()
-	self.inputContext:suspend()
-	self.inputContext:unset()
-end
-
 function context:getChildrenCount()
 	return #self.childrenContexts
 end
@@ -124,12 +120,103 @@ end
 
 function context:stopDeferingChildren()
 	self.deferChildren = false
+
 	return self.capturedChilds
 end
 
+function context:normalizePos(x, y)
+	local xPX, yPX
+
+	if x<=1 and x~=0 then
+		xPX = self.element.view.w * x
+	end
+	
+	if y<=1 and y~=0 then
+		yPX = self.element.view.h * y
+	end
+
+	return (xPX or x) + self.absX, (yPX or y) + self.absY
+end
+
+function context:normY(y)
+	local yPX
+
+	if y<=1 and y~=0 then
+		yPX = self.element.view.h * y
+	end
+
+	return (yPX or y)
+end
+
+function context:normX(x)
+	local xPX
+
+	if x<=1 and x~=0 then
+		xPX = self.element.view.w * x
+	end
+
+	return (xPX or x)
+end
+
+function context:normalizeSize(w, h)
+	local wPX, hPX
+
+	if w<=1 and w~=0 then
+		wPX = self.element.view.w * w
+	end
+
+	if h<=1 and h~=0 then
+		hPX = self.element.view.h * h
+	end
+
+	return wPX or w, hPX or h
+end
+
+--To be used by the element
+function context:sizeChanged()
+	self.events:push('resize')
+end
+
+function context:posChanged()
+	if self.parentCtx then
+		self.absX      = self.parentCtx.absX + self.view.x
+		self.absY      = self.parentCtx.absY + self.view.y
+	else
+		self.absX      = self.view.x
+		self.absY      = self.view.y
+	end
+	
+	self.events:push('poschange')
+end
+
+--Event subscriptions
+function context:onSizeChange(callback)
+	return self.events:sub('resize', callback)
+end
+
+function context:onPosChange(callback)
+	return self.events:sub('poschange', callback)
+end
+
+function context:offSizeChange(callback)
+	self.events:unsub('resize', callback)
+end
+
+function context:offPosChange(callback)
+	self.events:unsub('poschange', callback)
+end
+
 --Function meant for external context capture
 function context.getContext()
     return activeContext
 end
 
+function context.newFrame()
+	currentTemporalZ = 0
+end
+
+function context.unload()
+	activeContext = nil
+end
+
 return context

init.lua

@@ -10,8 +10,10 @@ helium.utils   = require(path..".utils")
 helium.element = require(path..".core.element")
 helium.input   = require(path..".core.input")
 helium.loader  = require(path..".loader")
+helium.stack   = require(path..".core.stack")
 helium.atlas   = require(path..".core.atlas")
 helium.elementBuffer = {}
+helium.elementInsertionQueue = {}
 helium.__index = helium
 
 setmetatable(helium, {__call = function(s, chunk)
@@ -61,15 +63,17 @@ function helium.draw()
 	for i, e in ipairs(helium.elementBuffer) do
 		e:externalRender()
 	end
+
+	for i, e in ipairs(helium.elementInsertionQueue) do
+		table.insert(helium.elementBuffer, e)
+	end
+	helium.elementInsertionQueue = {}
 end
 
 function helium.update(dt)
-	if helium.conf.HOTSWAP then
-		helium.loader.update(dt)
-	end
 
-	for i = #helium.elementBuffer, 1, -1 do
+	for i = 1, #helium.elementBuffer do
-		if helium.elementBuffer[i]:externalUpdate() then
+		if helium.elementBuffer[i]:externalUpdate(i) then
 			table.remove(helium.elementBuffer,i)
 		end
 	end
@@ -110,6 +114,7 @@ if helium.conf.AUTO_RUN then
 		-- Main loop time.
 		return function()
 			-- Process events.
+			helium.stack.newFrame()
 			if love.event then
 				love.event.pump()
 				for name, a,b,c,d,e,f in love.event.poll() do
@@ -139,12 +144,13 @@ if helium.conf.AUTO_RUN then
 				love.graphics.origin()
 				love.graphics.clear(love.graphics.getBackgroundColor())
 				
-				if love.draw then love.draw() end
-
 				st = love.timer.getTime()
 				helium.draw()
 				heliumTime=heliumTime+love.timer.getTime()-st
 
+				if love.draw then love.draw() end
+
+
 				love.graphics.present()
 			end
 			

layout/column.lua

@@ -0,0 +1,11 @@
+return function(x, y, width, height, children, hpad, vpad, alignX)
+	local carriagePos = 0
+	if children then
+		for i, e in ipairs(children) do
+			local _, h = e:getSize()
+			e:draw(x, y+carriagePos+vpad)
+			carriagePos = carriagePos + h + vpad
+		end
+	end
+	print('finished layout')
+end

layout/init.lua

@@ -1,88 +1,144 @@
-local path   = string.sub(..., 1, string.len(...) - string.len(".core.layout"))
+local path   = string.sub(..., 1, string.len(...) - string.len(".layout"))
 
 local layout = {}
+local layouts = {}
+layouts.column = require(path..'.layout.column')
 layout.__index = layout
-local element = require(path..'core.element')
+local element = require(path..'.core.element')
-local stack = require(path..'core.stack')
+local stack = require(path..'.core.stack')
-
-local function layout_new(type, x, y, w, h)
-    local ctx = element.getContext()
-
-    --The output will be in pixel numbers regardless of inputs
-    if x <= 1 or not x then
-        x = ctx.view.x * (x or 0)
-    end
-
-    if y <= 1 then
-        y = ctx.view.y * (y or 0)
-    end
-
-    if w <= 1 then
-        w = ctx.view.w * (w or 1)
-    end
-
-    if h <= 1 then
-        h = ctx.view.h * (h or 1)
-    end
-
-    return 
-end
-
-layout(0,0,1,1)
 
 --Start prep phase
 function layout.type(type)
+	local curStack = stack.getContext()
+	curStack:startDeferingChildren()
+
 	local self = {
 		vars = {
-			type = type or 'flow',
+			type = type or 'column',
 			offLeft = 0,
 			offTop = 0,
 			width   = 1,
+			hpad    = 3,
+			vpad    = 3,
 			height  = 1,
 			alignX  = 'left', --options: left, center, right
 			alignY  = 'top', --options: top, center, bottom
-			flowDir = 'rtl' --options: rtl/ttb
+			--flowDir = 'rtl', --options: rtl/ttb
+		},
+		stack = curStack
 	}
-	}
-
-
 	
 	return setmetatable(self, layout)
 end
 
 function layout:alignVert(pos)
 	self.vars.alignY = pos
+
+	return self
 end
 
 function layout:alignHoriz(pos)
 	self.vars.alignX = pos
+	
+	return self
 end
 
+--Sets up the box of the layout
 function layout:width(w)
 	self.vars.width = w
+	
+	return self
 end
 
 function layout:height(h)
 	self.vars.height = h
+
+	return self
 end
 
 function layout:left(x)
-	self.vars.offTop = x
+	self.vars.offLeft = x
+
+	return self
 end
 
 function layout:right(x)
 	self.vars.offRight = x
+	
+	return self
 end
 
 function layout:top(y)
 	self.vars.offTop = y
+
+	return self
 end
 
 function layout:bottom(y)
 	self.vars.offBot = y
+
+	return self
+end
+
+function layout:vPadding(px)
+	self.vars.vpad = px
+
+	return self
+end
+
+function layout:hPadding(px)
+	self.vars.hpad = px
+
+	return self
+end
+
+--Schemes: left + right = width ignored
+--top + bottom = height ignored
+--top px + bottom relative works
+--left relative + bottom px works 
+function layout:draw()
+	local stack = self.stack
+	local children = stack:stopDeferingChildren()
+	local height, width, x, y, _, marginV, marginH
+	local maxW, maxH = stack:normalizeSize(1,1)
+
+	if self.vars.offTop and self.vars.offBot then
+		marginV = stack:normY(self.vars.offTop) + stack:normY(self.vars.offBot)
+		height = stack:normY(1) - marginV
+	elseif self.vars.offTop then
+		y = stack:normY(self.vars.offTop)
+		height = math.min(stack:normY(self.vars.height), maxH-y)
+	elseif self.vars.offBot then
+		y = stack:normY(self.vars.offBot)
+		height = math.min(stack:normY(self.vars.height), maxH-y)
+		y = 0
+	end
+
+	if self.vars.offLeft and self.vars.offRight then
+		marginH = stack:normX(self.vars.offLeft) + stack:normX(self.vars.offRight)
+		width = stack:normX(1) - marginH
+	elseif self.vars.offLeft then
+		x = stack:normX(self.vars.offLeft)
+		width = math.min(stack:normX(self.vars.width), maxW-x)
+	elseif self.vars.offRight then
+		x = stack:normX(self.vars.offRight)
+		height = math.min(stack:normX(self.vars.width), maxW-x)
+		x = 0
+	end
+
+	layouts[self.vars.type](
+		x,
+		y,
+		width,
+		height,
+		children,
+		self.vars.hpad,
+		self.vars.vpad,
+		self.vars.alignX,
+		self.vars.alignY
+	)
 end
 
 
-
+setmetatable(layout, {__call = function(s, type) return layout.type(type) end })
-setmetatable(layout, {__call = function(s, type) return layout.type(type) end }
 return layout