mirror of
https://github.com/RetroDECK/ES-DE.git
synced 2024-11-22 22:25:38 +00:00
36 lines
1.4 KiB
Markdown
36 lines
1.4 KiB
Markdown
|
Also known as "Really Bad Technical Documentation"
|
||
|
|
|
||
|
|
These are mostly notes I create as I go along, marking potential gotchas for people who might try to extend my code.
|
||
|
|
Some day I'll try and add an overview of the code structure, what each class does, etc.
|
||
|
|
|
||
|
|
Development Environment
|
||
|
|
=======================
|
||
|
|
|
||
|
|
I personally launch ES in windowed mode with a smaller resolution than my monitor and with debug text enabled.
|
||
|
|
|
||
|
|
`emulationstation --windowed --debug -w 1280 -h 720`
|
||
|
|
|
||
|
|
|
||
|
|
Creating a new GuiComponent
|
||
|
|
===========================
|
||
|
|
|
||
|
|
You probably want to override:
|
||
|
|
|
||
|
|
`bool input(InputConfig* config, Input input);`
|
||
|
|
Check if some input is mapped to some action with `config->isMappedTo("a", input);`.
|
||
|
|
Check if an input is "pressed" with `input.value != 0` (input.value *can* be negative in the case of axes).
|
||
|
|
|
||
|
|
`void update(int deltaTime);`
|
||
|
|
`deltaTime` is in milliseconds.
|
||
|
|
|
||
|
|
`void render(const Eigen::Affine3f& parentTrans);`
|
||
|
|
You probably want to do `Eigen::Affine3f trans = parentTrans * getTransform();` to get your final "modelview" matrix.
|
||
|
|
Apply the modelview matrix with `Renderer::setMatrix(const Eigen::Affine3f&)`.
|
||
|
|
Render any children the component may have with `renderChildren(parentTrans);`.
|
||
|
|
|
||
|
|
|
||
|
|
Creating a new GameListView Class
|
||
|
|
=================================
|
||
|
|
|
||
|
|
1. Don't allow the user to navigate to the root node's parent. If you use a stack of some sort to keep track of past cursor states this will be a natural side effect.
|