doodle/README.md

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# Sketchy Maze
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> **Homepage:** https://www.sketchymaze.com
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Sketchy Maze is a drawing-based maze game.
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The game is themed around hand-drawn, side-scrolling platformer
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type mazes. You can draw your own levels using freehand and basic drawing tools,
color in some fire or water, and drag in pre-made "Doodads" like buttons, keys
and doors to add some interaction to your level.
This is a _very_ early pre-release version of the game. Expect bugs and slowness
but get a general gist of what the game is about.
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This alpha release of the game comes with some example levels built-in for
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playing or editing and a handful of built-in Doodads.
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See the **Guidebook** included with this game for good user-facing
documentation or online at https://www.sketchymaze.com/guidebook
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# Features
(Eventually), the high-level, user-facing features for the game are:
* **Draw your own levels** freehand and then play them like a 2D platformer
game.
* In **Adventure Mode** you can play through a series of official example
levels that ship with the game.
* In **Edit Mode** you can draw a map freehand-style and lay down physical
geometry, and mark which lines are solid or which ones behave like fire.
* Drag and drop **Doodads** like buttons, doors and keys into your level and
link them together so that buttons open doors and levers activate devices.
* In **Play Mode** you can play your level as a 2D platformer game where you
collect keys, watch out for enemies, and solve puzzles to get to the exit.
* Easily **Share** your custom maps with friends.
## Mod-friendly
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(Eventually) all these features will support custom content in the
game:
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* Users can create **Custom Doodads** to extend the game with a scripting
language like JavaScript. The sprites and animations are edited in-game
in Edit Mode, but the scripting is done in your text editor.
* In **Edit Mode** you can drag custom doodads into your maps.
* To **Share** your maps, you can choose to **bundle** the custom
doodads inside your map file itself, so that other players can play
the map without needing to install the doodads separately.
* If you receive a map with custom doodads, you can **install** the doodads
into your copy of the game and use them in your own maps.
# Keybindings
Global Keybindings:
```
Escape
Close the developer console if open, without running any commands.
Exit the program otherwise.
Enter
Open and close the developer console, and run commands while the
console is open.
F3
Toggle the Debug Overlay.
F4
Toggle debug collision hitboxes.
```
In Play Mode:
```
Cursor Keys
Move the player around.
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"E" Key
Edit the map you're currently playing if you came from Edit Mode.
```
In Edit Mode:
```
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Cursor Keys
Scroll the view of the map around.
"P" Key
Playtest the current map you're working on.
"F" Key
Switch to the Pencil (Freehand) Tool
"L" Key
Switch to the Line Tool
"R" Key
Switch to the Rectangle Tool
Ctrl-Z
Undo
Ctrl-Y
Redo
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```
# Built-In Doodads
A brief introduction to the built-in doodads available so far:
- **Characters**
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- Blue Azulian: this is used as the player character for now. If
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dragged into a level, it doesn't do anything but is affected
by gravity.
- Red Azulian: an example mobile mob for now. It walks back and
forth, changing directions only when it comes across an
obstacle and can't proceed any further.
- **Doors and Keys**
- Colored Doors: these act like solid barriers until the player or
another doodad collects the matching colored key.
- Colored Keys: these are collectable items that allow the player or
another doodad to open the door of matching color. Note that
inventories are doodad-specific, so other mobs besides the
player can steal a key before the player gets it! (For now)
- Electric Door: this mechanical door stays closed and only
opens when it receives a power signal from a linked button.
- Trapdoor: this door allows one-way access, but once it's closed
behind you, you can't pass through it from that side!
- **Buttons**
- Button: while pressed by a player or other doodad, the button
emits a power signal to any doodad it is linked to. Link a button
to an electric door, and the door will open while the button is
pressed and close when the button is released.
- Sticky Button: this button will stay pressed once activated and
will not release unless it receives a power signal from another
linked doodad. For example, one Button that links to a Sticky
Button will release the sticky button if pressed.
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- **Switches**
- Switch: when touched by the player or other doodad, the switch will
toggle its state from "OFF" to "ON" or vice versa. Link it to an
Electric Door to open/close the door. Link switches _to each other_ as
well as to a door, and all switches will stay in sync with their ON/OFF
state when any switch is pressed.
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- **Crumbly Floor**
- This rocky floor will break and fall away after being stepped on.
- **Two State Blocks**
- Blue and orange blocks that will toggle between solid and pass-thru
whenever the corresponding ON/OFF block is hit.
- **Start and Exit Flags**
- The "Go" flag lets you pick a spawn point for the player character.
- The "Exit" flag marks the level goal.
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# Developer Console
Press `Enter` at any time to open the developer console. The console
provides commands and advanced functionality, and is also where cheat
codes can be entered.
Commands supported:
```
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close
Exit to the game's title screen.
new
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Show the "New Level" screen to start editing a new map.
save [filename]
Save the current map in Edit Mode. The filename is required
if the map has not been saved yet.
edit [filename]
Open a map or doodad in Edit Mode.
play [filename]
Open a map in Play Mode.
echo <text>
Flash a message to the console.
alert <text>
Test an alert box modal with a custom message.
clear
Clear the console output history.
exit
quit
Close the developer console.
boolProp <property> <true/false>
Toggle certain boolean settings in the game. Most of these
are debugging related. `boolProp list` shows the available
props.
eval <expression>
$ <expression>
Execute a line of JavaScript code in the console. Several
of the game's core data types are available here; `d` is
the master game struct; d.Scene is the pointer to the
current scene. d.Scene.UI.Canvas may point to the level edit
canvas in Editor Mode. Object.keys() can enumerate public
functions and variables.
repl
Enters an interactive JavaScript shell, where the console
stays open and pre-fills a $ prompt for subsequent commands.
```
The JavaScript console is a feature for advanced users and was
used while developing the game. Cool things you can do with it
may be documented elsewhere.
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## Cheat Codes
The following cheats can be entered into the developer console.
Play Mode:
* `import antigravity`
- This disables the effects of gravity for the player
character. Arrow keys can freely move the player in any direction.
* `ghost mode`
- This disables collision detection for the player character
so that you can pass through walls and solid doodads. Combine with
antigravity or else you'll fall to the bottom of the map!
* `give all keys`
- Adds all four colored keys to the player's inventory.
* `drop all items`
- Clears the player's inventory of all items.
Experimental:
* `unleash the beast`
- Removes the 60 FPS frame rate lock, allowing the game to run as quickly
as your hardware permits.
* `don't edit and drive`
- Allows editing the level _while_ you're playing it: you can click and drag
new pixels with the freehand pencil tool.
* `scroll scroll scroll your boat`
- Enables Editor Mode scrolling (with the arrow keys) while playing a level.
The player character must always remain on screen though so you can't
scroll too far away.
Unsupported shell commands (here be dragons):
* `reload`: reloads the current 'scene' within the game engine, using the
existing scene's data. If playing a level this will start the level over.
If editing a level this will reload the editor, but your recent unsaved
changes _should_ be left intact.
* `guitest`: loads the GUI Test scene within the game. This was where I
was testing UI widgets early on; not well maintained; the `close`
command can get you out of it.
## Environment Variables
To enable certain debug features or customize some aspects of the game,
run it with environment variables like the following:
```bash
# Draw a semi-transparent yellow background over all level chunks
$ DEBUG_CHUNK_COLOR=FFFF0066 ./doodle
# Set a window size for the application
# (equivalent to: doodle --window 1024x768)
$ DOODLE_W=1024 DOODLE_H=768 ./doodle
# Turn on lots of fun debug features.
$ DEBUG_CANVAS_LABEL=1 DEBUG_CHUNK_COLOR=FFFF00AA \
DEBUG_CANVAS_BORDER=FF0 ./doodle
```
Supported variables include:
* `DOODLE_W` and `DOODLE_H` set the width and height of the application
window. Equivalent to the `--window` command-line option.
* `D_SCROLL_SPEED` (int): tune the canvas scrolling speed. Default might
be around 8 or so.
* `D_DOODAD_SIZE` (int): default size for newly created doodads
* `D_SHELL_BG` (color): set the background color of the developer console
* `D_SHELL_FG` (color): text color for the developer console
* `D_SHELL_PC` (color): color for the shell prompt text
* `D_SHELL_LN` (int): set the number of lines of output history the
console will show. This dictates how 'tall' it rises from the bottom
of the screen. Large values will cover the entire screen with console
whenever the shell is open.
* `D_SHELL_FS` (int): set the font size for the developer shell. Default
is about 16. This also affects the size of "flashed" text that appears
at the bottom of the screen.
* `DEBUG_CHUNK_COLOR` (color): set a background color over each chunk
of drawing (level or doodad). A solid color will completely block out
the wallpaper; semitransparent is best.
* `DEBUG_CANVAS_BORDER` (color): the game will draw an insert colored
border around every "Canvas" widget (drawing) on the screen. The level
itself is a Canvas and every individual Doodad or actor in the level is
its own Canvas.
* `DEBUG_CANVAS_LABEL` (bool): draws a text label over every Canvas
widget on the screen, showing its name or Actor ID and some properties,
such as Level Position (LP) and World Position (WP) of actors within
a level. LP is their placement in the level file and WP is their
actual position now (in case it moves).
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# Author
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Copyright (C) 2021 Noah Petherbridge. All rights reserved.