64 lines
2.7 KiB
C#
64 lines
2.7 KiB
C#
// Button2Midi.cs - Script to send a bang to a PD patch when the player enters
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// and leaves a collision volume.
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// -----------------------------------------------------------------------------
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// Copyright (c) 2020 Niall Moody
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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// -----------------------------------------------------------------------------
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using UnityEngine;
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/// Script to send a random MIDI note to a PD patch when the player enters and
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/// leaves a collision volume.
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public class Button2Midi : MonoBehaviour
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{
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/// The PD patch we're going to communicate with.
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public LibPdInstance pdPatch;
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/// We need to store our random note so that we can send the corresponding
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/// note off message when the player exits the collision volume.
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private int note;
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/// We send a MIDI note when the player steps on the button (enters the
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/// collision volume).
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void OnTriggerEnter(Collider other)
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{
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//First, pick a random note. This should pick from an octave starting at
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//middle C.
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note = 60 + Mathf.FloorToInt(Random.value * 12.0f);
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//Now send our MIDI note on message to our PD patch.
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//SendMidiNoteOn's 3 arguments are: channel, note number, velocity
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pdPatch.SendMidiNoteOn(0, note, 127);
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}
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/// We send a note off message when the player steps off the button (leaves
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/// the collision volume).
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void OnTriggerExit(Collider other)
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{
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//Send a note off message to our patch when the player leaves the
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//button's collision volume.
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//Note that there is no dedicated 'SendMidiNoteOff' function. To send a
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//note off message we have to send a 'note on' message with a velocity
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//of 0.
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pdPatch.SendMidiNoteOn(0, note, 0);
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}
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}
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