Add touchmoved, touchpressed and touchreleased callbacks

Author: rm-code

Screen.lua

@@ -67,6 +67,12 @@ function Screen.new()
 
     function self:quit(dquit) end
 
+    function self:touchmoved(id, x, y, pressure) end
+
+    function self:touchpressed(id, x, y, pressure) end
+
+    function self:touchreleased(id, x, y, pressure) end
+
     function self:wheelmoved(x, y) end
 
     function self:isActive()

ScreenManager.lua

@@ -260,6 +260,39 @@ function ScreenManager.quit(dquit)
     ScreenManager.peek():quit(dquit);
 end
 
+---
+-- Callback function triggered when a touch press moves inside the touch screen.
+-- @param id - The identifier for the touch press.
+-- @param x - The x-axis position of the touch press inside the window, in pixels.
+-- @param y - The y-axis position of the touch press inside the window, in pixels.
+-- @param pressure - The amount of pressure being applied. Most touch screens aren't pressure sensitive, in which case the pressure will be 1.
+--
+function ScreenManager.touchmoved(id, x, y, pressure)
+    ScreenManager.peek():touchmoved(id, x, y, pressure);
+end
+
+---
+-- Callback function triggered when the touch screen is touched.
+-- @param id - The identifier for the touch press.
+-- @param x - The x-axis position of the touch press inside the window, in pixels.
+-- @param y - The y-axis position of the touch press inside the window, in pixels.
+-- @param pressure - The amount of pressure being applied. Most touch screens aren't pressure sensitive, in which case the pressure will be 1.
+--
+function ScreenManager.touchpressed(id, x, y, pressure)
+    ScreenManager.peek():touchpressed(id, x, y, pressure);
+end
+
+---
+-- Callback function triggered when the touch screen stops being touched.
+-- @param id - The identifier for the touch press.
+-- @param x - The x-axis position of the touch press inside the window, in pixels.
+-- @param y - The y-axis position of the touch press inside the window, in pixels.
+-- @param pressure - The amount of pressure being applied. Most touch screens aren't pressure sensitive, in which case the pressure will be 1.
+--
+function ScreenManager.touchreleased(id, x, y, pressure)
+    ScreenManager.peek():touchreleased(id, x, y, pressure);
+end
+
 ---
 -- Callback function triggered when the mouse wheel is moved.
 -- @param x - Amount of horizontal mouse wheel movement. Positive values indicate movement to the right.