No problem at all. If you check the posting above I have edited it to include info on the Instrument I am using and a screen shot. Hope it helps.

Mike

I will be doing a post shortly on my final design for the tile map in Sir Lamorak’s Quest. I’m not going to have a chance to put it into a tutorial as it relies on many other elements in my game engine such as the Image class, SpriteSheet class etc, but I will be able to post about the design I’m using.

At a high level i am using basically the same tile map class that are in the tutorials. This creates a tile map for the tile images that are used. Once I have parsed the tile map and I know what tiles I have, I then create a VBO that contains an entry for every tile in a map layer. I have a separate VBO for each layer.

When I render, I then pass in the start tile position and how wide and high I want to render. This creates an array of indexes that represent the tiles I want to render in the VBO. I pass this list of indexes into glDrawElements and it just renders the tiles I am after.

This means I can calculate the VBO once at game load. This includes the geometry of each tile and the texture coordinates. Rather than ever changing the tilemap coordinates I simply perform a glTranslate after rendering the tilemap tiles. This then places the entities and player over the tile map I have rendered.

It’s hard to explain this quickly, but the blog entry will have more details.

Watch this space.

Mike

I hope you will show us your solution sooner or later. ;-)

I’m using a lot of code from your tutorials. So thanks for the tutorials, they are awesome.

In my game, at first, rendering was really straightforward. I was just creating every tile as an image and rendering it. It was not very efficient, so I’ve rolled my own Tile Map solution, based on .plist files. And gave my tiles some additional properties, CopyQty and CopyDirection. This step made my .plist file very small. Plus now I can use texture tiling by multiplying appropriate texture coordinate by CopyQty.

It gave me a 50 % fps boost on a really small two screen scene, with parallax scrolling, and 7 layers.

I wanted to try Texture Atlases, but then decided, not to waste time as now I’m satisfied with my game performance. The game is smooth and gives me 30-45 fps.

P.S.: Pardon me my english. =) I’m not a native speaker.