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  [DONE] Scrolling at the same pace as movement  (Read 368 times)
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Offline Mads

JGO Ninja


Medals: 23
Projects: 3


One for all!


« Posted 2012-08-17 20:40:01 »

I've been sitting with this silly issue for a while. It's stupid, and I hope it helps to get some other eyes on it.
I want the map indentation to move as fast as the player, if the player is near the edge of the screen.

Currently, I can outrun the scroll. It should be scrolling at the same speed as the player, so the player can never touch the edge of the screen.

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/* moving the player */
     
float newX = player.x, newY = player.y;
     
if(input.isKeyDown(Input.KEY_UP)) {
    newY -= player.movementSpeed;
} else if(input.isKeyDown(Input.KEY_DOWN)) {
   newY += player.movementSpeed;
} else if(input.isKeyDown(Input.KEY_LEFT)) {
   newX -= player.movementSpeed;
} else if(input.isKeyDown(Input.KEY_RIGHT)) {
   newX += player.movementSpeed;
}
     
if (newX + mapIndentX <= 16 * 4) { // four tiles from the border
  mapIndentX += player.movementSpeed;
}
     
/* do collision detection here, roughly. */

player.x = newX;
player.y = newY;

Offline Mads

JGO Ninja


Medals: 23
Projects: 3


One for all!


« Reply #1 - Posted 2012-08-17 20:58:17 »

Never mind, this was a rounding error.

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