ストワで始めるLua 第11回 まっぷ

タッチしたらそこにマップが移動するやつ

map

isTouching=false
centerPosition={}
touchPosition={}
function onTick()
	local rangeScale,height,width,touchX,touchY,isTouch
	
	rangeScale=input.getNumber(8)
	zoom=rangeScale/1000 --display range
	gpsPosition={x=input.getNumber(9),y=input.getNumber(10)} --position of vehicle
	
	--touch screen
	isTouch=input.getBool(1) 
	if isTouch and not(isTouching) then
		width=input.getNumber(1)
		height=input.getNumber(2)
		touchX=input.getNumber(3)
		touchY=input.getNumber(4)
		isTouching=true
		touchPosition.x,touchPosition.y=map.screenToMap(centerPosition.x, centerPosition.y, zoom, width, height, touchX, touchY) --world position of touch
	end

	--Center coordinates
	if next(touchPosition) then
		centerPosition=touchPosition
	else
		centerPosition=gpsPosition
	end

	--flag
	if not(isTouch) and isTouching then
		isTouching=false
	end

	isReset=input.getBool(2)
	if isReset then
		touchPosition={}
	end
end

function onDraw()
    --position = World XY , pixel = Display XY
	local width,height
	local gpsPixel={}

	width=screen.getWidth()
	height=screen.getHeight()
	screen.drawMap(centerPosition.x, centerPosition.y, zoom) --drawring map

	gpsPixel.x,gpsPixel.y=map.mapToScreen(centerPosition.x, centerPosition.y, zoom, width, height, gpsPosition.x, gpsPosition.y) --Location of the vehicle
	screen.drawCircle(gpsPixel.x,gpsPixel.y,5)
end