Easy swipe on touchscreen android

[9912]

Hello, i'm not very often here, but i want to share this code if someone wants an easy swipe up and down function

Code: Select all

function love.load()
	begin_y = nil
	end_y = nil
	doingTouch = false
end

function love.touchpressed(id, x, y, dx, dy, pressure)
	if doingTouch == false then
		begin_y = y
		doingTouch = true
	end
end

function love.touchmoved(id, x, y, dx, dy, pressure)
end

function love.touchreleased(id, x, y, dx, dy, pressure)
	end_y = y
	if doingTouch == true then
		if end_y < begin_y then
			--do what you want if you swiped [b]up[/b]
		elseif end_y > begin_y then
			--do what you want if you swiped [b]down[/b]
		elseif end_y == begin_y then
			--do what you want if you [b]touch[/b]
		end
		begin_y = nil
		end_y = nil
		doingTouch = false
	end
end

NOTE: feel free to add more features if you want, as of now it works perfectly on v11.3-Android, the best use of this code is with Talkies & Erogodic when you use choices in your visual novel

[darkfrei]

Hello, i'm not very often here, but i want to share this code if someone wants an easy swipe up and down function

Code: Select all

function love.load()
	begin_y = nil
	end_y = nil
	doingTouch = false
end

function love.touchpressed(id, x, y, dx, dy, pressure)
	if doingTouch == false then
		begin_y = y
		doingTouch = true
	end
end

function love.touchmoved(id, x, y, dx, dy, pressure)
end

function love.touchreleased(id, x, y, dx, dy, pressure)
	end_y = y
	if doingTouch == true then
		if end_y < begin_y then
			--do what you want if you swiped [b]up[/b]
		elseif end_y > begin_y then
			--do what you want if you swiped [b]down[/b]
		elseif end_y == begin_y then
			--do what you want if you [b]touch[/b]
		end
		begin_y = nil
		end_y = nil
		doingTouch = false
	end
end

NOTE: feel free to add more features if you want, as of now it works perfectly on v11.3-Android, the best use of this code is with Talkies & Erogodic when you use choices in your visual novel

The code from https://love2d.org/wiki/love.graphics.translate works too:

Code: Select all

tx=0
ty=0
function love.draw()
	mx = love.mouse.getX()
	my = love.mouse.getY()
	if love.mouse.isDown(1) then
		if not mouse_pressed then
			mouse_pressed = true
			dx = tx-mx
			dy = ty-my
		else
			tx = mx+dx
			ty = my+dy
		end
	elseif mouse_pressed then
		mouse_pressed = false
	end
	love.graphics.translate(tx, ty)
	
	-- example graphics:
	love.graphics.circle( "line", 0, 0, 400 )
	love.graphics.line(-440, 0, 440, 0)
	love.graphics.line(0, -440, 0, 440)
end

[9912]

The code from https://love2d.org/wiki/love.graphics.translate works too:

Code: Select all

tx=0
ty=0
function love.draw()
	mx = love.mouse.getX()
	my = love.mouse.getY()
	if love.mouse.isDown(1) then
		if not mouse_pressed then
			mouse_pressed = true
			dx = tx-mx
			dy = ty-my
		else
			tx = mx+dx
			ty = my+dy
		end
	elseif mouse_pressed then
		mouse_pressed = false
	end
	love.graphics.translate(tx, ty)
	
	-- example graphics:
	love.graphics.circle( "line", 0, 0, 400 )
	love.graphics.line(-440, 0, 440, 0)
	love.graphics.line(0, -440, 0, 440)
end

That works if you have a PC/Mac with mouse/track-pad, however the code has other purpose, i'll explain:
Some day ago, i was on a personal project making a visual novel, so i took erogodic with talkies as example, however it only works with physical keyboard, and therefore PC.
I'm targeting to use on Android which uses touchscreen, thus rendering the code unusable unless swipe gestures are implemented, so i've tested some codes around here and studying the touch functions from love.graphics library.
The code i've posted aims to be usable with smartphone touchscreen and its use cases includes -but not limited to- visual novels.

[Gunroar:Cannon()]

Nice . Seems like I'll be using it,
though you should have probally put this in the Library and Tools section(maybe as a tool...?) or General section, cause it seems you've got it figured out and don't need much help here, in ... that is... you know...Support and Development(though I guess it seems misleading, like "hey, come and post stuff to support others here" kind of thing )

[zorg]

The code from https://love2d.org/wiki/love.graphics.translate works too:
...

That works if you have a PC/Mac with mouse/track-pad, however the code has other purpose, i'll explain:
Some day ago, i was on a personal project making a visual novel, so i took erogodic with talkies as example, however it only works with physical keyboard, and therefore PC.
I'm targeting to use on Android which uses touchscreen, thus rendering the code unusable unless swipe gestures are implemented, so i've tested some codes around here and studying the touch functions from love.graphics library.
The code i've posted aims to be usable with smartphone touchscreen and its use cases includes -but not limited to- visual novels.

While you're partially correct that the given code won't detect gestures, but the mouse functions can in fact be used as a 1-touch touch input as well, if you don't want to mess with multitouch (or if the device doesn't support it).