Commit Graph

15 Commits

Author SHA1 Message Date
3d199ca263 SDL2: Cache Bitmaps in Memory, Not on Disk
* Update the SDL2 engine's texture caching to use an sdl.RWops file
  buffer in memory instead of outputting bitmap images to the
  filesystem.
2019-06-27 12:46:35 -07:00
ba6892aa95 WASM Texture Caching
* Refactor texture caching in render.Engine:
  * New interface method: NewTexture(filename string, image.Image)
  * WASM immediately encodes the image to PNG and generates a JavaScript
    `Image()` object to load it with a data URI and keep it in memory.
  * SDL2 saves the bitmap to disk as it did before.
  * WASM: deprecate the sessionStorage for holding image data. Session
    storage methods panic if called. The image data is directly kept in
    Go memory as a js.Value holding an Image().
* Shared Memory workaround: the level.Chunk.ToBitmap() function is where
  chunk textures get cached, but it had no access to the render.Engine
  used in the game. The `pkg/shmem` package holds global pointers to
  common structures like the CurrentRenderEngine as a work-around.
  * Also shmem.Flash() so Doodle can make its d.Flash() function
    globally available, any sub-package can now flash text to the screen
    regardless of source code location.
  * JavaScript API for Doodads now has a global Flash() function
    available.
* WASM: Handle window resize so Doodle can recompute its dimensions
  instead of scaling/shrinking the view.
2019-06-27 12:03:52 -07:00
48fc40ade4 Texture Caching for WASM Canvas Engine
* Add RGBA color blending support in WASM build.
* Initial texture caching API for Canvas renderer engine. The WASM build
  writes the chunk caches as a "data:image/png" base64 URL on the
  browser's sessionStorage, for access to copy into the Canvas.
* Separated the ClickEvent from the MouseEvent (motion) in the WASM
  event queue system, to allow clicking and dragging.
* Added the EscapeKey handler, which will abruptly terminate the WASM
  application, same as it kills the window in the desktop build.
* Optimization fix: I discovered that if the user clicks and holds over
  a single pixel when drawing a level, repeated Set() operations were
  firing meaning multiple cache invalidations. Not noticeable on PC but
  on WebAssembly it crippled the browser. Now if the cursor isn't moving
  it doesn't do anything.
2019-06-26 22:44:08 -07:00
c5c85330de WASM Event Queue
* Refactor the event system in the WASM render engine to serialize the
  async JavaScript events into a channel, so that queued events are read
  off serially in the main loop similar to SDL. This fixes keyboard
  input issues, altho if you type really fast some input keys get lost.
2019-06-26 20:33:24 -07:00
af67b20d9b Initial WebAssembly Build Target
* Initial WebAssembly build target for Doodle in the wasm/ folder.
* Add a new render.Engine implementation, lib/render/canvas that uses
  the HTML 5 Canvas API instead of SDL2 for the WebAssembly target.
  * Ported the basic DrawLine(), DrawBox() etc. functions from SDL2 to
    Canvas context2d API.
  * Fonts are handled with CSS embedded fonts named after the font
    filename and defined in wasm/index.html
* `make wasm` builds the WASM program, and `make wasm-serve` runs a dev
  Go server that hosts the WASM file for development. The server also
  watches the dev tree for *.go files and rebuilds the WASM binary
  automatically on change.
* This build "basically" runs the game. UI and fonts all work and mouse
  movements and clicks are detected. No wallpaper support yet or texture
  caching (which will crash the game as soon as you click and draw a
  pixel in your map!)
2019-06-26 18:40:40 -07:00
4dd1bebc5f Add MenuScene with New Level UI
* Debug mode: no longer enables the DebugOverlay (F3) by default, but
  does now insert the current FPS counter into the window title bar.
* ui.Frame: set a default "mostly transparent" BG color so the frame
  background doesn't render as white.
* Add the MenuScene which will house the game's main menus.
* The "New Level" menu is first to be added.
  * UI lets you pick Page Type and Wallpaper using radio buttons.
  * Page Type: Unbounded, Bounded (default), No Negative Space, Bordered
  * Fix bugs in uix.Canvas to fully support all these page types.
2019-06-25 15:01:37 -07:00
567b3158f1 Minor Tweaks 2019-06-08 17:02:28 -07:00
1523deeb9c Return False: Solid Collision Between Actors
* Implement the handler code for `return false` when actors are
  colliding with each other and wish to act like solid walls.
* The locked doors will `return false` when they're closed and the
  colliding actor does not have the matching key.
* Add arbitrary key/value storage to Actors. The colored keys will set
  an actor value "key:%TITLE%" on the one who touched the key before
  destroying itself. The colored doors check that key when touched to
  decide whether to open.
* The trapdoor now only opens if you're touching it from the top (your
  overlap box Y value is 0), but if you touch it from below and the door
  is closed, it acts like a solid object.
2019-05-28 21:43:30 -07:00
f76ba6fbb7 WIP: MsgPack stubs, Level Filesystem Module
* Add some encoding/decoding functions for binary msgpack format for
  levels and doodads. Currently it writes msgpack files that can be
  decoded and printed by Python (mp2json.py) but it can't re-read from
  the binary format. For now, levels will continue to write in JSON
  format.
* Add filesystem abstraction functions to the balance/ package to search
  multiple paths to find Levels and Doodads, to make way for
  system-level doodads.
2019-05-06 12:41:46 -07:00
52a2545692 Remove ScreenshotKey Event, Add F* Key Handlers
* The F3 key now toggles the Debug Overlay, which is now OFF by default.
* The F4 key now toggles the Debug Collision Boxes feature.
2019-04-19 16:21:04 -07:00
fb8f4b1029 Remove pkg/log from lib/render package
This breaks the last ties from the lib/ folder of publicly open
sourceable code from the internals of Doodle in pkg/
2019-04-18 22:14:02 -07:00
241186209c Play Mode: Fix Level Collision w/ Scrolling
Fixes:
* Move the call to CollidesWithGrid() inside the Canvas instead of
  outside in the PlayScene.movePlayer() so it can apply to all Actors
  in motion.
* PlayScene.movePlayer() in turn just sets the player's Velocity so the
  Canvas.Loop() can move the actor itself.
* When keeping the player inside the level boundaries: previously it was
  assuming the player Position was relative to the window, and was
  checking the WorldIndexAt and getting wrong results.
* Canvas scrolling (loopFollowActor): check that the actor is getting
  close to the screen edge using the Viewport into the world, NOT the
  screen-relative coordinates of the Canvas bounding boxes.
2019-04-14 15:25:03 -07:00
5c08577214 Port over code from old collision dev PR 2019-04-09 19:17:56 -07:00
bd3dd41cea Clean up extra log modules 2019-04-09 17:47:03 -07:00
2b42a072a0 Code Layout Refactor
* All private Doodle source code into the pkg/ folder.
* Potentially public code into the lib/ folder.
* Centralize the logger into a subpackage.
2019-04-09 17:35:44 -07:00