avr/lantern/lantern.c

/*
Copyright 2022, Savanni D'Gerinel <savanni@luminescent-dreams.com>

This file is part of Savanni's AVR library.

This AVR library is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This AVR library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this AVR library. If not, see <https://www.gnu.org/licenses/>.
*/

#include <sk9822.h>

lantern_t lantern_new(sk9822_t lights) {
    sk9822_init(&lights);
    return (lantern_t){
        .lights = lights,
        .color_scheme = normal,
        .animations = {
            animation_new(),
            animation_new(),
            animation_new(),
        }
    };
}

void lantern_start_normal(lantern_t *self, rng_t *rng, int light_idx) {
    switch (light_idx) {
        case 0:
            animation_begin(
                    &self->animations[0],
                    random_step(self->animations[0].color.r, 180, 255, rng),
                    random_step(self->animations[0].color.g, 20, 50, rng),
                    0,
                    5);
            break;
        case 1:
            animation_begin(
                    &self->animations[1],
                    random_step(self->animations[1].color.r, 160, 230, rng),
                    random_step(self->animations[1].color.g, 10, 30, rng),
                    0,
                    15);
            break;
        case 2:
            animation_begin(
                    &self->animations[2],
                    random_step(self->animations[2].color.r, 140, 170, rng),
                    random_step(self->animations[2].color.g, 0, 10, rng),
                    0,
                    30);
            break;
    }
}

void lantern_start_spooky(lantern_t *self, rng_t *rng, int light_idx) {
    switch (light_idx) {
        case 0:
            animation_begin(
                    &self->animations[0],
                    0,
                    random_step(self->animations[0].color.g, 80, 120, rng),
                    0,
                    15);
            break;
        case 1:
            animation_begin(
                    &self->animations[1],
                    0,
                    random_step(self->animations[1].color.g, 60, 100, rng),
                    0,
                    15);
            break;
        case 2:
            animation_begin(
                    &self->animations[2],
                    0,
                    random_step(self->animations[2].color.g, 20, 40, rng),
                    0,
                    15);
            break;
    }
}

void lantern_start_eerie(lantern_t *self, rng_t *rng, int light_idx) {
    switch (light_idx) {
        case 0:
            animation_begin(
                    &self->animations[0],
                    random_step(self->animations[0].color.g, 20, 40, rng),
                    random_step(self->animations[0].color.g, 20, 40, rng),
                    random_step(self->animations[0].color.g, 80, 120, rng),
                    15);
            break;
        case 1:
            animation_begin(
                    &self->animations[1],
                    random_step(self->animations[0].color.g, 0, 30, rng),
                    random_step(self->animations[0].color.g, 0, 30, rng),
                    random_step(self->animations[1].color.g, 60, 100, rng),
                    30);
            break;
        case 2:
            animation_begin(
                    &self->animations[2],
                    random_step(self->animations[0].color.g, 0, 10, rng),
                    random_step(self->animations[0].color.g, 0, 10, rng),
                    random_step(self->animations[2].color.g, 20, 40, rng),
                    45);
            break;
    }
}

void lantern_set_mode(lantern_t *self, color_scheme_e scheme) {
    self->color_scheme = scheme;
}

void lantern_step(lantern_t *self, display_t *display, rng_t *rng, rgb_t colors[LIGHT_COUNT]) {
    for (int i = 0; i < LIGHT_COUNT; i++) {
        if (!animation_running(&self->animations[i])) {
            switch (self->color_scheme) {
                case normal:
                    lantern_start_normal(self, rng, i);
                    break;
                case spooky:
                    lantern_start_spooky(self, rng, i);
                    break;
                case eerie:
                    lantern_start_eerie(self, rng, i);
                    break;
                case flash:
                    break;
            }
        }

        animation_step(&self->animations[i]);
        colors[i] = self->animations[i].color;
    }
}

void lantern_show(lantern_t *lantern, display_t *display) {
    char msg1[20];
    char msg2[20];

    snprintf(msg1, 20, "[%d,%d] %x,%x,%x",
            lantern->animations[0].frame,
            lantern->animations[0].duration,
            lantern->animations[0].color.r,
            lantern->animations[0].color.g,
            lantern->animations[0].color.b
    );
    snprintf(msg2, 20, "%x,%x,%x %x,%x,%x",
            lantern->animations[1].color.r,
            lantern->animations[1].color.g,
            lantern->animations[1].color.b,
            lantern->animations[2].color.r,
            lantern->animations[2].color.g,
            lantern->animations[2].color.b
    );
    display_clear(display);
    display_write_message(display, msg1);
    display_set_location(display, 1, 0);
    display_write_message(display, msg2);
}