set touch_delta to zero when touch begins

ianmaclarty · Aug 28, 2016 · 3ce942f · 3ce942f
1 parent 1c3bbcb
commit 3ce942f
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/lua/events.lua b/lua/events.lua
@@ -208,6 +208,12 @@ function am._touch_begin(win, id, x, y, nx, ny, px, py, force)
         touch.norm_position_y = ny
         touch.pixel_position_x = px
         touch.pixel_position_y = py
+        touch.prev_position_x = touch.position_x
+        touch.prev_position_y = touch.position_y
+        touch.prev_norm_position_x = touch.norm_position_x
+        touch.prev_norm_position_y = touch.norm_position_y
+        touch.prev_pixel_position_x = touch.pixel_position_x
+        touch.prev_pixel_position_y = touch.pixel_position_y
         touch.force = force
         touch.began = true
     end