rotate toward certain side of screen

Getting Started Newbie Questions
#1

Hey guys how do I make it so on button press a certain object will move toward a certain angle.I have it set up so when the right button is pressed it rotates 90 degrees same for left accept negative 90 but when I rotate left then try to rotate right it only rotates 90 degrees like I told it but how do I make its so it rotates to the right side when the right btn is pressed and same for left.

Thanks Tyler J

rotatedright=false rotatedleft = false local bg = display.newImage("background.jpg",200,200,500,500) bg:scale(2.3,2.5) local sidebar= display.newRect(400,100,50,50) local tank = display.newImage("tank.png",50,50) tank:scale(0.25,0.25) local leftbtn = display.newImage("btn.png",50,300) local rightbtn = display.newImage("btn.png",100,300) -- Called when the scene's view does not exist local function moveright( event ) print("buttonR was pressed") tank.x = tank.x+10 if rotatedright == false then tank:rotate( 90 ) rotatedright = true end end local function moveleft( event ) print("buttonL was pressed") tank.x = tank.x-10 if rotatedleft == false then tank:rotate( -90 ) rotatedleft = true end end leftbtn:addEventListener("touch",moveleft) rightbtn:addEventListener("touch",moveright)
#2

If I’ve understood you correctly, when you’ve already rotated one way, and you want to go the other, then you just rotate by twice as much. So check if rotatedleft == true for instance, and if it does you rotate by 180, else rotate by 90. Also, don’t forget to set your rotate flags to false when you rotate the other way.

#3

If I’ve understood you correctly, when you’ve already rotated one way, and you want to go the other, then you just rotate by twice as much. So check if rotatedleft == true for instance, and if it does you rotate by 180, else rotate by 90. Also, don’t forget to set your rotate flags to false when you rotate the other way.