Mathias Kende
56b2f772c4
This is the initial version of the watch face that only handles a theoretical perfect semi-diurnal tide, similarly to some Casio watches.
81 lines
3.7 KiB
C
81 lines
3.7 KiB
C
/*
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* MIT License
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*
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* Copyright (c) 2025 Mathias Kende
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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 all
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* 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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#pragma once
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#include "movement.h"
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/*
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* TIDE COMPUTATION face
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*
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* Computes the time of the next high and low tides in your areas as well as
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* their magnitudes and gives an approximation of the current tide.
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*
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* For now, this face only handle a theoretical perfect semi-diurnal tide,
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* similarly to what some Casio watches are doing. In the future, it may be
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* possible to handle more precise computation by sending the harmonics
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* coeficients of the tides over IR.
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*
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* To configure the face, long press the Alarm button to enter the setting mode
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* then set the time of the high tide in your area. You can move the hour using
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* the Alarm and Mode button to go up and down, then press the Light button to
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* set the minutes in the same way. Notice that if you overflow the minutes then
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* the hour will change. Similarly, when the hours overflow, the day for the
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* tide (shown in the upper right corner) is changed too (however there is no
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* direct way to set the day). You must be sure to select the right day for the
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* tide that you are currently entering.
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* Note that, if you set the high tide value for a day with a full or new moon,
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* the computation will be slightly more precise.
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* Because the Mode button is used, you must first press the Alarm button once
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* or twice, to exit the settings, before pressing Mode to exit the watch face.
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*
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* Once configured, the face start by showing the state of the current tide
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* (low, flowing, high, or ebbing) at the top of the screen. If the tide is
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* flowing or ebbing, the bottom left part of the screen also shows the current
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* hight of the tide as a percentage of the total tide. The bottom right portion
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* of the screen shows a representation of whether the current tide is a neap
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* or spring tide, or an intermediate one.
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*
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* You can then repeatedly press the Alarm buttom to see the time of the future
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* high and low tides. The bottow right corner has the same representation of
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* the amplitude of the tide and the top right corner has the day of the month
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* for which the tide is shown.
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*
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* You can long press the Light button to come back to the state of the current
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* tide. Exiting and re-entering the watch face will have the same effect.
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*/
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void tide_face_setup(uint8_t watch_face_index, void ** context_ptr);
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void tide_face_activate(void *context);
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bool tide_face_loop(movement_event_t event, void *context);
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void tide_face_resign(void *context);
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#define tide_face ((const watch_face_t){ \
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tide_face_setup, \
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tide_face_activate, \
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tide_face_loop, \
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tide_face_resign, \
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NULL, \
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})
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