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--- notes:data:fall2023:projects:mpg0 [2023/09/03 23:07] – [Game loop] dmorey2
+++ notes:data:fall2023:projects:mpg0 [2023/09/06 19:25] (current) – [Bounds checking] dwhite26
@@ Line 60: / Line 60: @@
   select_texture( 0 ); //selects the Texture1 set in the .xml file
 </code>
+<code c>
+  select_region( 0 );  // Sets the selected texture region to the given texture ID
+</code>
+<code c>
+  define_region( int min_x, int min_y, int max_x, int max_y, int hotspot_x, int hotspot_y );
+</code>
+These x and y values correspond to the pixel coordinates in the selected texture.  Once the region is defined it can then be drawn to the screen.
 ====Gamepad input====
@@ Line 75: / Line 85: @@
 ====Bounds checking====
+The bounds of the Vircon32 emulator are 640x360. will 0,0 being at the top left and 640, 360 being at the bottom right. you can use these maximum width and height values to see if something comes in contact with them.
+To do this you will need a max and min X , and a max and min Y. These will tell your object where they can and cannot go.
+<code> int MaxX = 30
+       if (objectX > MaxX)
+         objectX = MaxX;
+</code>
 ====Handling motion====
+Motion from the player will be used from controller input. You have to be able to check if the player is holding/pressing the keys that relate to up and down on the y axis. If the key is pressed, then you will move the sprite up or down on the y axis at a speed you set through a variable that gets added to the sprites location each loop.
+Motion not from the player can be activated on your own set conditions. such as using bool to activate or deactivate the ball and if functions to run through a set of code if the ball is active or not.
 ====Score Display====
 To display a score, you'll need to declare a couple integers first to mathematically keep track of each player's points.<code>#int [name of variable for paddle 1];

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