7802994854
* Move from .c to .h as needed for consistency. * When missing from both, copy from pull request or wiki. * When missing entirely, infer functionality from source code.
110 lines
4.8 KiB
C
110 lines
4.8 KiB
C
/*
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* MIT License
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*
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* Copyright (c) 2022 Raymundo Cassani
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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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#ifndef TACHYMETER_FACE_H_
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#define TACHYMETER_FACE_H_
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/*
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* TACHYMETER face
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*
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* The Tachymeter complication emulates the tachymeter function often
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* present in watches, that computes the average speed in [units per hour]
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* for a given distance given in [units].
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*
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* Use case:
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* User sets the distance
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* User starts the tachymeter when the trip begins
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* User stops the tachymeter when the trip ends
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* The watch presents the average speed and trip duration in seconds
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*
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* Usage:
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* Go to tachymeter face, TC is shown in the Weekday Digits
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* A steady d in the Day Digits indicates the distance to be used.
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* To edit the distance:
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* Long-press the Alarm button, the distance edition page (d will blink)
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* Use the Light button to change the editing (blinking) digit, and press Alarm to increase its value
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* Once done, long-press the Alarm button to exit the distance edition page
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* Press the Alarm button to start the tachymeter.
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* A running animation will appear in the Day Digits
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* Press the Alarm button to stop the tachymeter
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* The average speed and total time information will alternate.
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* The average speed will be shown alongside /h in the Day Digits;
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* and the total time will be shown alongside t in the Day Digits.
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* Long press the Light button to return to the distance d page,
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* and restart the tachymeter from there.
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* Long-press the light button in the steady distance page to reset
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* the distance to 1.00
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*
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* Pending design points
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* o movement_request_tick_frequency(4) is used to obtain a 4Hz ticking, thus
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* having a time resolution of 250 ms. Not sure if using event.subsecond`
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* is the proper way to get the fractions of second for the start and
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* final times.
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* o For distance and average speed, the Second Digits (position 8 and 9)
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* can be seen as decimals, thus possible to show distances as short as
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* 0.01 km (or miles) and speeds as low as 0.01 km/h (or mph). However,
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* if the same idea is used for the total time (showing hundredths),
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* this limits the display to 9999.99 seconds (~2h:45m).
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*/
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#include "movement.h"
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typedef struct {
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uint8_t thousands: 4; // 0-9 (must wrap at 10)
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uint8_t hundreds: 4; // 0-9 (must wrap at 10)
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uint8_t tens: 4; // 0-9 (must wrap at 10)
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uint8_t ones: 4; // 0-9 (must wrap at 10)
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uint8_t tenths: 4; // 0-9 (must wrap at 10)
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uint8_t hundredths: 4; // 0-9 (must wrap at 10)
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} distance_digits_t;
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typedef struct {
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bool running; // tachymeter status
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bool editing; // editing distance
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uint8_t active_digit; // active digit at editing distance
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uint8_t animation_state; // running animation state
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watch_date_time start_seconds; // start_seconds
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int8_t start_subsecond; // start_subsecond count (each count = 250 ms)
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distance_digits_t dist_digits; // distance digitwise
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uint32_t distance; // distance
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uint32_t total_time; // total_time = now - start_time (in cs)
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uint32_t total_speed; // 3600 * 100 * distance / total_time
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} tachymeter_state_t;
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void tachymeter_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
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void tachymeter_face_activate(movement_settings_t *settings, void *context);
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bool tachymeter_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
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void tachymeter_face_resign(movement_settings_t *settings, void *context);
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#define tachymeter_face ((const watch_face_t){ \
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tachymeter_face_setup, \
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tachymeter_face_activate, \
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tachymeter_face_loop, \
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tachymeter_face_resign, \
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NULL, \
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})
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#endif // TACHYMETER_FACE_H_
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