Difference between revisions of "Sonic Physics Guide"
From Sonic Retro
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A prerequisite for much of the info on this guide. | A prerequisite for much of the info on this guide. | ||
*[[SPG:Solid Tiles]] | *[[SPG:Solid Tiles]] | ||
| − | A detailed description of sloped terrain, and how Sonic | + | A detailed description of how sloped terrain is constructed, and how objects use Sensors to collide with it. |
| + | *[[SPG:Slope Physics]] | ||
| + | How Sonic moves with momentum over Solid Tile angled surfaces. Also explaining how some specific actions such as walking, jumping, and rolling all react to slope angles. | ||
*[[SPG:Solid Objects]] | *[[SPG:Solid Objects]] | ||
Explaining object hitboxes, solidity, Sonic's hitbox, and other ways objects directly interact with Sonic. | Explaining object hitboxes, solidity, Sonic's hitbox, and other ways objects directly interact with Sonic. | ||
| Line 18: | Line 20: | ||
*[[SPG:Rolling]] | *[[SPG:Rolling]] | ||
How rolling controls on flat ground. | How rolling controls on flat ground. | ||
| + | *[[SPG:Game Objects]] | ||
| + | Describing objects such as rings, enemies, blocks, and springs. Including how they move around, how they are constructed, and how they react to certain situations. | ||
| + | *[[SPG:Main Game Loop]] | ||
| + | The order of events for objects including characters. | ||
*[[SPG:Ring Loss]] | *[[SPG:Ring Loss]] | ||
Detailing how rings disperse when hit. | Detailing how rings disperse when hit. | ||
| Line 34: | Line 40: | ||
*[[SPG:Animations]] | *[[SPG:Animations]] | ||
Covering animation frame durations and how & when they appear. | Covering animation frame durations and how & when they appear. | ||
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[[Category:Sonic Physics Guide| ]] | [[Category:Sonic Physics Guide| ]] | ||
Revision as of 17:25, 13 December 2020
ROM Hacks make the process of developing a functional Sonic game with unique art, enemies, and modifications much easier, since the game engine and basic mechanics are already functional. However, if the game requires a different game engine, modifying existing low-level assembly may be inappropriate, and some game designers might choose to program their own unique game engine. The physics of a game engine are rules that describe how to transform the player's input (either in the form of buttons, keyboard, or even a mouse if the designer feels inclined) into appropriate changes in the position of the sprites in the game (such as the Sonic sprite, or alternatively, how enemy sprites will respond). These physics guides will hopefully make the process of simulating the rules used in Sonic games easier.
Since the rules themselves are independent of how they are implemented, many people choose programming languages such as Java, C, C++, Python, or a Lisp dialect to implement game physics. In addition, people can choose to use more specialized applications like Adobe Flash (Animate), GameMaker Studio 2, or a Clickteam program like Multimedia Fusion 2.
Hopefully, these guides will provide adequate information to facilitate implementation.
Physics Guides
A prerequisite for much of the info on this guide.
A detailed description of how sloped terrain is constructed, and how objects use Sensors to collide with it.
How Sonic moves with momentum over Solid Tile angled surfaces. Also explaining how some specific actions such as walking, jumping, and rolling all react to slope angles.
Explaining object hitboxes, solidity, Sonic's hitbox, and other ways objects directly interact with Sonic.
Describing how Sonic moves and changes actions on flat ground.
Sonic's variable jump and acceleration in the air.
How rolling controls on flat ground.
Describing objects such as rings, enemies, blocks, and springs. Including how they move around, how they are constructed, and how they react to certain situations.
The order of events for objects including characters.
Detailing how rings disperse when hit.
How Sonic's abilities change underwater.
How Sonic's abilities change when super.
Specific abilities such as spindashing, flying, gliding, and elemental shields.
Detailing how the camera follows Sonic.
What happens when Sonic gets hit.
Describing how Sonic bounces off enemies and other destroy-able items.
Covering animation frame durations and how & when they appear.