Noah Petherbridge
8965a7d86a
Add new doodads: * Start Flag: place this in a level to set the spawn point of the player character. If no flag is found, the player spawns at 0,0 in the top corner of the map. Only use one Start Flag per level, otherwise the player will randomly spawn at one of them. * Crumbly Floor: a solid floor that begins to shake and then fall apart after a moment when a mobile character steps on it. The floor respawns after 5 seconds. * State Blocks: blue and orange blocks that toggle between solid and pass-thru whenever a State Button is activated. * State Button: a solid "ON/OFF" block that toggles State Blocks back and forth when touched. Only activates if touched on the side or bottom; acts as a solid floor when walked on from the top. New features for doodad scripts: * Actor scripts: call SetMobile(true) to mark an actor as a mobile mob (i.e. player character or enemy). Other doodads can check if the actor colliding with them IsMobile so they don't activate if placed too close to other (non-mobile) doodads in a level. The Blue and Red Azulians are the only mobile characters so far. * Message.Broadcast allows sending a pub/sub message out to ALL doodads in the level, instead of only to linked doodads as Message.Publish does. This is used for the State Blocks to globally communicate on/off status without needing to link them all together manually. |
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|---|---|---|
| .. | ||
| index.html | ||
| main_wasm.go | ||
| Makefile | ||
| README.md | ||
| server.go | ||
| wasm_exec.js | ||
WebAssembly Port
Build and Test
Change to the wasm/ folder and type make to build doodle.wasm
To test it with a local Go server, cd to the wasm/ folder and run
go run server.go and visit http://localhost:8080/
Copy the fonts and assets folders from the project root to the
wasm/ directory so they're available over HTTP.
wasm_exec.js
To update the wasm_exec.js to match your version of Go:
# Fedora: install golang-misc
sudo dnf install golang-misc
# Copy the wasm_exec.js
cp $(go env GOROOT)/misc/wasm/wasm_exec.js ./
Font Support
Fonts are implemented as CSS embedded fonts configured in
wasm/index.html
The font family name should match the filename, sans .ttf extension, for example "DejaVuSans-Bold". Doodle's internal logic converts a FontFilename string like "./fonts/DejaVuSans.ttf" into the base name to use as the font family. It also has fallbacks for sans-serif and serif in case of any problems.
Known Bugs and Limitations
- git.kirsle.net/go/log
- The detection of an interactive terminal is broken in WASM.
terminal.IsTerminal(int(os.Stdout.Fd()))- As a workaround, comment it out and hardcode to
false
- Userdir
- For WASM we'll want to use localStorage to store user drawings instead of the userdir.
- Wallpaper support
- WASM can't use os.Open to read the wallpaper image, so will need another method to load the image.
- Texture caching support isn't implemented yet to hold the four corner textures of a wallpaper.
- As a workaround, added a
wallpaper.readyboolean and relevant functions exit early for WASM so wallpapers don't render at all.