Ncurses-like text printing for Panda3D
The goal is to keep panda3d in control as much as possible while providing a console of sorts to print to, not to emulate ncurses as closely as possible. It's currently pretty barebones but with some workarounds can be made to do anything ncurses can except beep().
- Only works with monospaced fonts that contain the U+2588 "full block" unicode character for solid character backgrounds. For this reason hack.ttf is in this repo, which is MIT licensed.
- Meant to be used to make ascii/text-based games, GUIs, HUDs, etc.
- Either combine with panda3d's other capabilities or consider this the wrong way to draw text to a screen.
To see a colorful display of functionality, run
$ git clone http://github.com/momojohobo/panda3d-purses $ cd panda3d-purses $ pip install -r requirements.txt $ python purses3d/__init__.py
It is also avaiable on pypi.
$ pip install panda3d-purses3d
- Steal more handy functions from ncurses.
Either MIT or Public Domain (CC0), take your pick.
How to use:
# Import sys, panda3d and purses import sys from direct.showbase.ShowBase import ShowBase from purses3d import Purses, Window # Run panda3d base = ShowBase() base.accept("escape", sys.exit) base.run() # Initialize purses with a console size of 40x20 characters # It will be automatically scaled to fill the entire screen purses = Purses(40, 20) # Make a window in the center, taking up half the screen window = Window(x=10, y=5, columns=20, lines=10) # Move that window's cursor to where we want to write window.move(3, 0) # Write something in that window window.addstr("hello world") # Or move and print in one go window.addstr(3, 0, "hello world") # Copy it to the main purses window purses.copyfrom(window) # Because Purses() is also a window, we can write something on it too purses.addstr(0, 0, "purses!") # Update the screen purses.refresh()
Colors / Properties
To add colors (amongst other need things) we'll need panda3d's TextPropertiesManager
from panda3d.core import TextProperties, TextPropertiesManager # Get panda3d's global property manager manager = TextPropertiesManager.getGlobalPtr() # Make some property, in this case something telling it to print the text red (in rgba) red = TextProperties() red.setTextColor((1,0,0,1)) # Add it to panda's global mananger manager.addProperties("myRedColor", red) # And use it to print the characters foreground (with a transparent background) purses.addstr(0, 0, "purses!", ("myRedColor", None)) # ...or to print the characters background in that color purses.addstr(0, 0, "purses!", (None, "myRedColor")) purses.refresh() # We can reposition this purses instance too so it doesn't take up the entire screen purses.node.setScale(0.5) purses.node.setPos(-0.3, 0, 0) # Or parent it to the world as a 3d object COOOL! purses.node.reparentTo(render)
You can change any properties found in the panda3d TextProperties class, though they're mostly untested. Especially changing text size could screw things up I imagine.
Because panda3d is a realtime system and curses is not, text input is handled a little differently.
# Get user input string at (10, 5) from main purses screen string = purses.getstr(10, 5) # You can also supply a different window to echo the string to # Or give it fg and bg attributes string = purses.getstr(10, 5, window=my_window, attr=("red", "blue")) # If the string is closed (with enter), it is returned instead of None. if string: # If used types hello if string == "hello": # Print this answer purses.addstr("why hello there buddy!")
Functions so far
purses.move(x, y) # Place the cursor at position purses.increment(n=1) # Increment the cursor location purses.scrollup() # Scroll everything in window up purses.scrolldown() # Scroll everything in window down purses.fill(character) # Fills the entire window with a char (or empty if none is specified) purses.delete(x, y) # Delete a single character purses.addch(x, y, char, properties) # Add a single character purses.addstr(x, y, string, properties) # Add a string # Draw horizontal and vertical lines respectively purses.linehori(start_x, start_y, length, character, properties) purses.linevert(start_x, start_y, length, character, properties) # Draw a border around the window, left, right, top, bottom and its corners. # Each character should be complete with properties ("c", (None, None)) purses.border(ls, rs, ts, bs, tl, tr, bl, br) purses.box(horizontal_sides, vertical_sides) # These calls only work from the main Purses() window. purses.refresh() # Refresh screen (place its state to the screen) # Return the mouse coordinates in characters, only callable from Purses() # If window is specified it will return its relative coordinates purses.getmouse(window) # Return a string as written by user purses.getstr(x, y, window=None, attr=(None, None))
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