On 02/02/2011 07:00 PM, Benoît Minisini wrote: > Actually you want some sort of scrolling? Yes, although the image "shifting" I spoke of isn't what creates the scrolling directly. Here's a brief breakdown of what happens in the game.
The server has a map 65536x65536 tiles, with each tile representing one square foot. This map is organized into "cells", which are 32x32 tiles each. When a client connects, the server sends the client a "cell grid" of 3x3 cells, with the center cell being the cell the player is located in. When the player moves outside the center cell, all the cells are shifted accordingly and the server sends the player the data for the new cells. The client uses a DrawingArea of 1280x720 pixels to represent the final, visible rendering of the world, but a "tile grid" image buffer is used to composite the scene invisibly. While the cell grid is just landscape data in arrays, the tile grid is a graphical representation of a subset of the cell grid data. The tile grid is a square grid of tiles designed to be a few tiles larger than the DrawingArea. Each tile is 128x128 pixels. If the DrawingArea is 1280x720 then the tile grid is 1408x1408 (11x11 tiles, with the player being in the center tile). The tile grid is treated like an old-school RPG; when the player moves out of the center tile the image is shifted one tile and a new row of tiles is drawn. The player doesn't see this, however, as the DrawingArea is updated from the tile grid by a camera that smoothly follows the player. I would use SDL but it isn't currently robust enough to support the effects I need (discussed in a previous email; no one has the time currently to expand it). OpenGL, while nice, is complex enough that it would prevent me from finishing the game. I'm doing all the design, coding and artwork by myself (a friend is doing the music). So that leaves me with pushing gb.image and gb.image.effect to their limits. I'm almost to the point where I can record a video of the game in action, so soon I'll be able to show you what I'm doing. Until then, just struggling with frame rates. ;) -- Kevin Fishburne Eight Virtues www: http://sales.eightvirtues.com e-mail: [email protected] phone: (770) 853-6271 ------------------------------------------------------------------------------ Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d _______________________________________________ Gambas-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/gambas-user
