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TETRIS FULL SCREEN HOW TO
TETRIS FULL SCREEN GENERATOR
TETRIS FULL SCREEN UPDATE
TETRIS FULL SCREEN CODE

For reasons of consistency, the rest of the game update engine should be paused while you do this, because you are now creating a state where essentially one row is empty but the other blocks haven’t fallen down yet – an essentially illegal game world state in Tetris. For example, in Tetris, when a line is cleared, you may want to fade the line out. Some types of animations will actually alter the flow of execution of the game, and these are by far the most complex to implement. The implementation is similar to background animations except that you must first check if the animation is active (currently running or not), maintain a flag for this, and turn it off when the animation ends rather than looping it. Triggered animations happen as a result of something that happens in the game – perhaps triggered by the user, perhaps not.

TETRIS FULL SCREEN CODE

All you have to do is add code to your per-frame game world update function to move the animations forward one frame, looping or cycling when you reach the end of the animation. I’m going to introduce some random made-up terminology to clarify these types:Īnimations that run constantly in the background (that is to say, they run continuously, not that they are actually in the background of the scene) – let’s be wildly creative and call them background animations – can be easily shoehorned into your game.

TETRIS FULL SCREEN GENERATOR

This can be as simple as a linear equation – “move 100 pixels per second” – a sine or cosine function for fluid and smooth acceleration and deceleration of an object or to make wavy lines for example – or something as complex as a bezier curve, polynomial function or even a random number generator for static, distortion and certain particle effects.ĭon’t worry if you’re a bit confused right now examples of how this all hangs together follow below!Ĭertain types of animations require different types of changes to your code and I will try to present examples of different types here.

The animation function, which specifies an equation describing how the bound variable(s) will change over time.

an animated GIF), a palette/colour code for an object or visual effect, the rotation angle or scale factor of an object, the volume of the currently playing game music (for fades), or any other variable you can think of.

The bound variable(s), which is the aspect of the game object, visual effect or sound that is going to change over time – for example the bound variable could be an x or y co-ordinate (or both) of a sprite, the sprite frame number (to animate sprites which have several frames, eg.

Here we are talking about mere visual or audio effects which are incidental to the game itself. We are only looking at predictable, fixed animations in this article, which is to say, not for example the movement of the player or AI-guided enemies. This change can be the movement of a point or sprite, a fade (by altering the level of alpha – or transparency – in an object), the cycling of colours (by varying the amount of red, green and blue in a colour according to some function) and so on. The core principle of any 2D or 3D animation is that a sequence of changes occur to one or more objects over a certain number of frames, at a specific rate (or according to a specific function – the animation does not have to be linear). The animation class works independently of Simple2D and does not depend on it.ĭownload: Source code (.cpp) | Source code (.h) | Executable

TETRIS FULL SCREEN HOW TO

position and transparency) with a single animation function, and how to partly randomize the intermediate steps (interpolation) of an animation.Īlthough we are again using Simple2D here (and as such this article serves a tutorial on how to use it, and how SimpleTetris is evolving), the algorithms and principles can be mostly copy/pasted and are easily adaptable to other graphics libraries. We will examine how to use this class to animate several objects at different points in the path of a single animation, how to affect two paremeters of an object (eg. We will create a simple animation class in C++ which takes care of tracking the position and timing of basic animations, and learn how to apply this to make changes in an object’s position, colour and alpha (transparency). It’s game coding time with SimpleTetris again and this time we’re going to look at how to add a variety of different animations and useful graphical tweaks which can equally be applied to any game or demo.