ストワで始めるLua第5回のコード

動画はこちら

button

--initialize
selectFlg=false
isTouching=false

--class
button={}
button.new=function(x,y,w,h,str)
	local obj={}
	obj.x=x
	obj.y=y
	obj.w=w
	obj.h=h
	obj.isBool=false
	obj.str=str
	obj.getBool=function (this)
		return this.isBool
	end
	obj.display=function(this)
		screen.setColor(255,255,255)
    	screen.drawRectF(this.x,this.y,this.w,this.h)
		if this.isBool then
			screen.setColor(0,255,0)
		else
			screen.setColor(255,0,0)
		end
		screen.drawText(this.x,this.y,this.str)
    end
	obj.isPointIn=function (this, pointX, pointY)
		return pointX > this.x and pointY > this.y and pointX < this.x+this.w and pointY < this.y+this.h
	end
	return obj
end

--toggle button
toggleButton={}
toggleButton.new=function(x,y,w,h,str)
	local obj=button.new(x,y,w,h,str)
	obj.toggle=function(this)
		this.isBool=not(this.isBool)
	end
	return obj
end

--push button
pushButton={}
pushButton.new=function(x,y,w,h,str)
	local obj=button.new(x,y,w,h,str)
	obj.push=function(this)
		this.isBool=true
	end
	obj.release=function(this)
		this.isBool=false
	end
	return obj
end

--instance
toggleButtonTbl={toggleButton.new(0,0,4,5,"A"),toggleButton.new(0,6,4,5,"B"),toggleButton.new(0,12,4,5,"C")}
pushButtonTbl={pushButton.new(0,20,4,5,"1"),pushButton.new(0,26,4,5,"2")}

function onTick()
	local w,h,inputX,inputY

	--input
	isTouch=input.getBool(1)
	w=input.getNumber(1)
	h=input.getNumber(2)
	inputX=input.getNumber(3)
	inputY=input.getNumber(4)
	
	--Touch display
	if isTouch==true and isTouching==false then
		isTouching=true
		--toggle
		for k, value in pairs(toggleButtonTbl) do
			if value:isPointIn(inputX,inputY) then
				value:toggle()
			end
		end
		--push
		for k, value in pairs(pushButtonTbl) do
			if value:isPointIn(inputX,inputY) then
				value:push()
			end
		end
	end
	
	--no touch
	if isTouch==false then
		isTouching=false
		for k, value in pairs(pushButtonTbl) do
			value:release()
		end
	end
end

function onDraw()
	--display
	local w,h
	w=screen.getWidth()
	h=screen.getHeight()
	
	for k, value in pairs(toggleButtonTbl) do
		value:display()
	end
	for k, value in pairs(pushButtonTbl) do
		value:display()
	end
end