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copied!<p>The way I address this problem may not be optimal (in fact I'm sure it probably isn't) but it has worked for me in all my 2D platforming projects so far.</p> <p>I begin by defining a second rectangle for the sprite class. This rectangle will have the same Width and X coordinate as the main bounding box, but it will be slightly taller (in my case 2 or 3). You will also need to offset it so that the bottom edges of both rectangles are inline, to illustrate:</p> <pre><code>Rectangle boundingRect = new Rectangle((int)position.X, (int)position.Y, texture.Width, texture.Height); Rectangle gravityRect = new Rectangle((int)boundingRect.X, (int)boundingRect.Y - 3, texture.Width, texture.Height + 3); </code></pre> <p>The sprite class also needs a bool to keep track of if the player should be falling. And one to keep track of whether it is solid (which you obviously assign as desired, during initialization).</p> <pre><code>public bool isGrounded = false; bool isSolid; </code></pre> <p>At the top of my Game1 class, I declare 2 ints:</p> <pre><code>int gravityTotalI = 0; int gravityCounterI = 0; </code></pre> <p>When initializing my sprites, I usually add them all to a List. So that I can do this:</p> <pre><code>foreach (Sprite s in spriteList) { if (s.isSolid) { gravityTotalI++; } } </code></pre> <p>Now, I use this bit of logic in the Game1 Update Method:</p> <pre><code>foreach (Sprite s in spriteList) { if (!s.Equals(player) { if (player.boundingRect.Intersects(s.boundingRect) || player.boundingRect.Intersects(s.gravityRect)) { player.isGrounded = true; gravityCounterI = 0; } else { gravCounterI++; if (gravCounterI >= gravTotalI) { player.isGrounded = false; gravCounterI = 0; } } if (player.boundingRect.Intersects(s.boundingRect)) { player.position.Y -= 2f; //set the resistance of the platform here } } } //end of foreach loop. if (!player.isGrounded) { player.position.Y += 2f; //set the force of gravity here. } </code></pre> <p>Building a decent directional collision engine is a different thing, but this technique will handle the basics (and get rid of that infernal bouncing).</p> <p>Hope this isn't too long-winded/doesn't miss out anything important, and I really hope it helps - I struggled with exactly the same problem as you for a long time, and I know how frustrating it can be!</p> <p>I'm looking forward to seeing others' techniques for handling this!</p>

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