Display messages with graphic effects in the Escape Room with a Raspberry Pi.
This prop listens to MQTT messages and then displays the text on an HDMI display and rings a bell.
Messages are sent by the game master with the Teletext Plugin or any application able to publish MQTT messages.
The Teletext Plugin can be used as a standalone applet, without the need of Room software. If you use Room software, you will find detailed installation help in the Room manual.
An advanced graphical effect is used to mimic water waves:
uniform vec2 ref_coords;
vec4 effect(vec4 color, sampler2D texture, vec2 tex_coords, vec2 coords)
{
vec2 distance = 0.025*(coords - ref_coords);
//float dist_mag = (distance.x*distance.x + distance.y*distance.y);
float dist_mag = (distance.x*distance.x / 4.0+ distance.y*distance.y / 4.0);
vec3 multiplier = vec3(abs(sin(dist_mag - time)));
return vec4(multiplier * color.xyz, 1.0);
}
Install Kivy with the (install-kivy.sh) shell script.
pi@raspberrypi:~/Room/Props/PyProps/KivyProp/PyWaterWellProp $ chmod a+x install-kivy.sh
pi@raspberrypi:~/Room/Props/PyProps/KivyProp/PyWaterWellProp $ ./install-kivy.sh If you don't install the whole PyProps library, you will have to fulfill the PyWaterWellProp requirements:
PyProps/core/KivyProp.pyPyProps/core/Singleton.py
And you will have to install following Python packages:
$ pip3 install paho-mqtt
$ pip3 install PyYAMLStart main.py script in /home/pi/Room/Props/PyProps/KivyProp/PyWaterWellProp:
pi@raspberrypi:~ $ python3 ~/Room/Props/PyProps/KivyProp/PyWaterWellProp/main.py -d
[INFO ] [Logger ] Record log in /home/pi/.kivy/logs/kivy_20-04-09_108.txt
[INFO ] [Kivy ] v2.0.0rc1, git-26228b2, 20200408
[INFO ] [Kivy ] Installed at "/usr/local/lib/python3.7/dist-packages/kivy/__init__.py"
[INFO ] [Python ] v3.7.3 (default, Dec 20 2019, 18:57:59)
[GCC 8.3.0]
[INFO ] [Python ] Interpreter at "/usr/bin/python3"
[INFO ] [Factory ] 184 symbols loaded
[DEBUG ] [Cache ] register <kv.lang> with limit=None, timeout=None
[DEBUG ] [Cache ] register <kv.image> with limit=None, timeout=60
[DEBUG ] [Cache ] register <kv.atlas> with limit=None, timeout=None
[INFO ] [Image ] Providers: img_tex, img_dds, img_sdl2, img_pil (img_ffpyplayer, img_gif ignored)
[DEBUG ] [Cache ] register <kv.texture> with limit=1000, timeout=60
[DEBUG ] [Cache ] register <kv.shader> with limit=1000, timeout=3600
[INFO ] [Text ] Provider: sdl2
[INFO ] [Window ] Provider: egl_rpi
[DEBUG ] [Window ] Actual display size: 1366x768
[INFO ] [GL ] Using the "OpenGL ES 2" graphics system
[DEBUG ] [GL ] glShaderBinary is not available
[INFO ] [GL ] Backend used <gl>
[INFO ] [GL ] OpenGL version <b'OpenGL ES 2.0'>
[INFO ] [GL ] OpenGL vendor <b'Broadcom'>
[INFO ] [GL ] OpenGL renderer <b'VideoCore IV HW'>
[INFO ] [GL ] OpenGL parsed version: 2, 0
[INFO ] [GL ] Shading version <b'OpenGL ES GLSL ES 1.00'>
[INFO ] [GL ] Texture max size <2048>
[INFO ] [GL ] Texture max units <8>
[DEBUG ] [Shader ] Fragment compiled successfully
[DEBUG ] [Shader ] Vertex compiled successfully
[DEBUG ] [ImageSDL2 ] Load </usr/local/lib/python3.7/dist-packages/kivy/data/glsl/default.png>
[INFO ] [Window ] virtual keyboard not allowed, single mode, not docked
[DEBUG ] [Audio ] option <gstplayer> ignored by config
[DEBUG ] [Audio ] option <ffpyplayer> ignored by config
[DEBUG ] [Audio ] register SoundSDL2
[DEBUG ] [Audio ] register MusicSDL2
[INFO ] [Audio ] Providers: audio_sdl2 (audio_gstplayer, audio_ffpyplayer ignored)
Config: {'host': '192.168.1.42', 'port': 1883}
INFO - Program connected to MQTT server
INFO - Program sending message 'CONNECTED' (mid=1) on Room/My room/Props/Raspberry WaterWell/outbox
INFO - Program subscribing to topic (mid=2) : Room/My room/Props/Raspberry WaterWell/inbox
DEBUG - MQTT message is published : mid=1 userdata={'host': '192.168.1.42', 'port': 1883}
INFO - Message published (mid=1)
DEBUG - MQTT topic is subscribed : mid=2 granted_qos=(1,)
INFO - Program susbcribed to topic (mid=2) with QoS (1,)
INFO - Message received : '@PING' in Room/My room/Props/Raspberry WaterWell/inbox
INFO - Program sending message 'PONG' (mid=3) on Room/My room/Props/Raspberry WaterWell/outbox
DEBUG - MQTT message is published : mid=3 userdata={'host': '192.168.1.42', 'port': 1883}
INFO - Message published (mid=3)
The command to relaunch the prop is :
$ echo host: %BROKER%> /home/pi/Room/Props/PyProps/KivyProp/PyWaterWellProp/.config.yml && ps aux | grep python | grep -v "grep python" | grep PyWaterWellProp/main.py | awk '{print $2}' | xargs kill -9 && screen -d -m python3 /home/pi/Room/Props/PyProps/KivyProp/PyWaterWellProp/main.pyPyWaterWellProp as a prop for xcape.io Room
To use PyTeletextProp as a prop for xcape.io Room software, here are props commands and messages as well as a suggested control panel.
blink:0: deactivate blinkingblink:1: activate blinkingdisplay:a message to display on the TV: display the messageerase: clear TV screen
Add and configure Raspberry WaterWell connected prop.
The Teletext Plugin can be used as a standalone applet, without the need of Room software. If you use Room software, you will find detailed installation help in the Room manual.
Faure Systems (Apr 8th, 2020)