If you combine multiple images into one texture - called a texture atlas - instead of having multiple draw calls, there’s only one, which is more efficient. When your game is rendered, SpriteKit will make a “draw call” on the GPU for each and every texture you send it. The advantage of using texture atlases is performance. Texture atlases look and behave just like a folder. The tile images are in texture atlases instead of folders. It includes all of the tile and sprite images you’ll need for this tutorial. The starter project has an asset catalog named Assets.xcassets. Managing Your Images in the Asset Catalog This is a great site with tons of tiles and other sprites available. Fortunately, there are a few free asset sites that developers can use. Tile map art is an art form all of its own. To create a tile map, you’ll first need some tile images. Later, you’ll create a new tile map in code with the objects that the car needs to collect. In Rubber Duckie Rescue, you’ll first paint two simple background tile maps with grass and water, replacing the current gray background. Sid Meier’s Civilization moved with great visual effect from an isometric grid in Civ 4 to a hexagonal grid in Civ 5. This is an example of a pointy hexagon tile grid: There are two ways of placing hexagons: with the point on top or the flat side on top. Isometric tiles are a diamond shape as in Ravenwood Fair. This a top down game, but you can also use grid tiles for a side scroller. You choose the tile set depending on the style of your game. There are four types of Tile Sets you can create: grid, isometric, hexagonal pointy or hexagonal flat. You’ll also create a tiled area with ducks placed randomly for the car to rescue. In this tutorial, you’ll be making the background environment using grass and water tiles that have different effects on the car’s movement. This means you know exactly on which tile your character is currently standing. Flexibility: Each tile can be addressed in code.Smaller tiles can be repeated, and take up fewer resources. Performance: Aside from the convenience of painting tiles, performance will be improved.To change from summer to winter, just replace the lush verdant grass layer with a desolate brown layer. You can place a village on one tiled layer and grass on a lower layer. It’s easy to place individual tiles and amazingly easy to paint a whole background in seconds. Now you place one SKTileMapNode, and then paint it with tiles. Control: Previously, each tile would be a new SKSpriteNode, and placing all those nodes could be a bit of a nightmare. You might also have tiles that define the edges between the grass and the bunker. If you’re creating a golfing game, for example, you might have grass tiles and sandy bunker tiles. These tiles are then carefully placed one-by-one, creating a complete image. When creating a background, you have the option of either using one large image or using smaller images called tiles. But don’t worry! You’ll change that momentarily. At the moment, the background is just a solid gray colour. Touch to send the car to a particular location, or pan to have the car follow the touch. You’ll see that you have a car that responds to touch. Getting Startedįirst, download the starter project for Rubber Duckie Rescue, and make sure you have Xcode 8 installed.Ĭurrently the game is in its infancy by the end of this tutorial, you’ll control a car that will drive through an exciting tiled landscape on a mission to rescue those pesky ducks.īuild and run the app. In the new game Rubber Duckie Rescue that’s sure to be a smash-hit, you’ll rescue some rubber duckies along the way. In this tutorial you’ll learn all about tiles – how to import them and paint them in the new Tile Editor. It’s a blast to use, and you can get your backgrounds up and running and looking great really fast. One of the best is the SpriteKit Tile Editor. WWDC 2016 introduced a whole new batch of goodies. Update 9/26/16: This tutorial has been updated for Xcode 8 and Swift 3.
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