Add Construct modes to map

parts/scenes/mode.lua

@@ -22,6 +22,8 @@ local mapCam={
 local visibleModes
 local touchDist
 local grid
+local min_x,max_x=-1500,1350
+local min_y,max_y=-1900,660
 
 local scene={}
 
@@ -66,8 +68,8 @@ end
 local function _moveMap(dx,dy)
     local k=_getK()
     local x,y=_getPos()
-    if x>1300 and dx<0 or x<-1500 and dx>0 then dx=0 end
-    if y>620 and dy<0 or y<-1900 and dy>0 then dy=0 end
+    if x>max_x and dx<0 or x<min_x and dx>0 then dx=0 end
+    if y>max_y and dy<0 or y<min_y and dy>0 then dy=0 end
     mapCam.xOy:translate(dx/k,dy/k)
 end
 function scene.wheelMoved(_,dy)