pitrix/src/effect_matrix.cpp

#include "effect_matrix.h"
#include "my_color_palettes.h"
#include "functions.h"

MatrixEffectColumn::MatrixEffectColumn() {
}

MatrixEffectColumn::MatrixEffectColumn(Window* win, int xPos) : MatrixEffectColumn() {
    window = win;
    x = xPos;
    start();
    y = random8(0, window->height);
}

void MatrixEffectColumn::start() {
    y=-1;
    length = random8(EFFECT_MATRIX_LENGTH_MIN, EFFECT_MATRIX_LENGTH_MAX);
    running = true;
    speed = random8(EFFECT_MATRIX_SPEED_MIN, EFFECT_MATRIX_SPEED_MAX);
}

void MatrixEffectColumn::advance() {
    y++;
    if (y-length > window->height) running = false;
}

void MatrixEffectColumn::draw() {
    for(int i=0; i<length; i++) {
    	CRGB color;
        if (i==0) {
        	color = CRGB(255, 255, 255);
        } else {
        	color = ColorFromPalette((CRGBPalette16)palette_matrix, 255 * (length - i) / length);
        }
        window->setPixel(x, y-i, &color);
    }
}

void MatrixEffectColumn::loop() {
    if (!running) {
        if (random8() < 20) {
            // Start the column again.
            start();
        }
    } else {
        if (millis() - last_move > speed) {
            advance();
            last_move = millis();
        }

        draw();
    }
}

boolean MatrixEffect::can_be_shown_with_clock() { return true; };

MatrixEffect::MatrixEffect() {
}

void MatrixEffect::start() {
	_columns = new MatrixEffectColumn[LED_WIDTH];
	for (int i=0; i<LED_WIDTH; i++) _columns[i] = MatrixEffectColumn(window, i);
}

void MatrixEffect::stop() {
	delete[] _columns;
}

void MatrixEffect::loop() {
    window->clear();
    for (int i=0; i<window->width; i++) _columns[i].loop();
}