# Animate Preview
## Usage
```
Usage: animate-preview --target STRING [--image STRING] [--high-dpi] [--fps INT]
[--watch]
Available options:
-h,--help Show this help text
--target STRING File path with sprite information (YAML or JSON)
--image STRING Force sprite sheet's file path
--high-dpi Use high DPI (if available)
--fps INT Force frames per second (default: 60)
--watch Watch target and image files. Automatically reload
files when changed
```
## Commands
### General
* `m`: Toggle modes - `Playback` and `Stepper`
* `r`: Reload sprite information and sprite sheet
* `escape`: Quit program
### Movement
* `j`/`down arrow`: Move sprite down
* `k`/`up arrow`: Move sprite up
* `h`/`left arrow`: Move sprite left
* `l`/`right arrow`: Move sprite right
* `mouse click` (and drag): Sprite follows mouse cursor
* `c`: Center sprite
### Keyframe
* `n`: Next keyframe animation
* `p`: Previous keyframe animation
### Speed and Frame position
* `f`: (`Playback` Mode) Increase sprite animation speed. (`Stepper` Mode) Go to next frame.
* `d`: (`Playback` Mode) Decrease sprite animation speed. (`Stepper` Mode) Go to previous frame.
* `a`: Reset animation speed to 1x
### Scaling
* `s`/`mouse wheel click`: Reset sprite scale to 1x
* `+`/`scroll in`: Scale up sprite
* `-`/`scroll out`: Scale down sprite
### Visibility
* `t`: Iterate colors of the offset's crosshair (Red, Green, Blue, Cyan, Magenta, Yellow, None)
* `b`: Iterate colors of the background (Gray checkered, Black checkered, White checkered)
* `o`: Iterate colors of the sprite's outline (Red, Green, Blue, Cyan, Magenta, Yellow, None)
* `i`: Toggle showing or hiding animation information
## Build
### OSX build
```
brew install sdl2
brew install sdl2_ttf
brew install sdl2_image
brew install sdl2_gfx
stack build
```
### Ubuntu build
```
sudo apt install libsdl2-dev libsdl2-ttf-dev libsdl2-image-dev libsdl2-gfx-dev
stack build
```
### Windows build
```
stack exec -- pacman -S mingw64/mingw-w64-x86_64-pkg-config mingw64/mingw-w64-x86_64-SDL2 mingw64/mingw-w64-x86_64-SDL2_ttf mingw64/mingw-w64-x86_64-SDL2_image mingw64/mingw-w64-x86_64-SDL2_gfx
stack build
```