Hi !
I am developping a game where you can use swipe gesture in a direction to make move a box.
I am using this code to detect the swipe:
local beginX
local beginY
local endX
local endY
local xDistance
local yDistance
local bDoingTouch
local minSwipeDistance = 50
local totalSwipeDistanceLeft
local totalSwipeDistanceRight
local totalSwipeDistanceUp
local totalSwipeDistanceDown
function checkSwipeDirection()
if bDoingTouch == true then
xDistance = math.abs(endX - beginX) -- math.abs will return the absolute, or non-negative value, of a given value.
yDistance = math.abs(endY - beginY)
if xDistance \> yDistance then
if beginX \> endX then
totalSwipeDistanceLeft = beginX - endX
if totalSwipeDistanceLeft \> minSwipeDistance then
print("Swiped Left")
end
else
totalSwipeDistanceRight = endX - beginX
if totalSwipeDistanceRight \> minSwipeDistance then
print("Swiped Right")
end
end
else
if beginY \> endY then
totalSwipeDistanceUp = beginY - endY
if totalSwipeDistanceUp \> minSwipeDistance then
print("Swiped Up")
end
else
totalSwipeDistanceDown = endY - beginY
if totalSwipeDistanceDown \> minSwipeDistance then
print("Swiped Down")
end
end
end
end
end
function swipe(event)
if event.phase == "began" then
bDoingTouch = true
beginX = event.x
beginY = event.y
end
if event.phase == "ended" then
endX = event.x
endY = event.y
checkSwipeDirection();
bDoingTouch = false
end
end
Runtime:addEventListener("touch", swipe) When I swipe in a direction, say, to the north, the box is moving to the north. Great ! Now, say the box hit a wall after moving north and stop against it by dectecting the collision. By the way, my box move by applying box:applyForce(0, 5000, box.x, box.y). So, if I want to swipe to the north again, an unexpected behavior happens. Indeed, the force applyed will be doubled by rebounding against the wall and the box will move twice faster than expected…in the reverse direction ! This is not the right behavior that I was expected.
Basically, I don’t want the box to rebound against the wall when I swipe twice in that particular direction.
If I move a box against the wall by swipping to the north, then if I swipe north again, I would like to ignore that swipe as long as the user is trying to swipe north and that the box is colliding with the wall, so the force won’t be applyed and the box won’t rebound. So the only swipe gesture available to the player would be south, east and west.
Could someone help me with that problem ?
Thank you in advance ^^
Ray [import]uid: 20617 topic_id: 33001 reply_id: 333001[/import]