Jan Remmer Siebels
01e79a4eb2
ESP32-C3 based hot wire game with WS2812B LED effects, SSD1306 OLED display, debounced touch detection, and full game state machine (IDLE → COUNTDOWN → PLAYING → GAME_OVER). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
133 lines
3.9 KiB
C++
133 lines
3.9 KiB
C++
#include "led_effects.h"
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#include "config.h"
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#include "game_logic.h"
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#include <Adafruit_NeoPixel.h>
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static Adafruit_NeoPixel strip(NUM_LEDS, PIN_NEOPIXEL, NEO_GRB + NEO_KHZ800);
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// ── Helpers ─────────────────────────────────────────────────────────
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static uint32_t colorWheel(uint8_t pos) {
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pos = 255 - pos;
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if (pos < 85) return strip.Color(255 - pos * 3, 0, pos * 3);
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if (pos < 170) { pos -= 85; return strip.Color(0, pos * 3, 255 - pos * 3); }
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pos -= 170;
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return strip.Color(pos * 3, 255 - pos * 3, 0);
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}
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// ── Animations ──────────────────────────────────────────────────────
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static void animIdle() {
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// Rainbow chase
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static uint16_t hue = 0;
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for (int i = 0; i < NUM_LEDS; i++) {
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strip.setPixelColor(i, colorWheel((i * 256 / NUM_LEDS + hue) & 0xFF));
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}
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hue += 2;
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strip.show();
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}
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static void animCountdown() {
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GameData& gd = gameGetData();
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uint32_t color;
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switch (gd.countdownValue) {
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case 3: // fall through
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case 2: color = strip.Color(255, 0, 0); break; // Red
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case 1: color = strip.Color(255, 180, 0); break; // Yellow
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default: color = strip.Color(0, 255, 0); break; // Green (GO!)
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}
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for (int i = 0; i < NUM_LEDS; i++) {
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strip.setPixelColor(i, color);
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}
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strip.show();
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}
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static void animPlaying() {
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GameData& gd = gameGetData();
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unsigned long totalMs = (unsigned long)GAME_DURATION_S * 1000UL;
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float progress = 1.0f - (float)gd.elapsedMs / (float)totalMs;
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if (progress < 0.0f) progress = 0.0f;
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int litLeds = (int)(progress * NUM_LEDS + 0.5f);
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for (int i = 0; i < NUM_LEDS; i++) {
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if (i < litLeds) {
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// Color transitions: green → yellow → red as time depletes
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if (progress > 0.5f) strip.setPixelColor(i, strip.Color(0, 255, 0));
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else if (progress > 0.2f) strip.setPixelColor(i, strip.Color(255, 180, 0));
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else strip.setPixelColor(i, strip.Color(255, 0, 0));
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} else {
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strip.setPixelColor(i, 0);
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}
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}
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strip.show();
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}
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static void animGameOverWin() {
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// Green/gold sparkle
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static unsigned long lastSparkle = 0;
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unsigned long now = millis();
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if (now - lastSparkle > 80) {
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lastSparkle = now;
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for (int i = 0; i < NUM_LEDS; i++) {
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if (random(3) == 0)
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strip.setPixelColor(i, strip.Color(255, 215, 0)); // Gold
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else
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strip.setPixelColor(i, strip.Color(0, 180, 0)); // Green
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}
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strip.show();
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}
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}
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static void animGameOverLose() {
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// Pulsing red breathing
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static uint8_t breathVal = 0;
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static int8_t breathDir = 2;
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breathVal += breathDir;
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if (breathVal >= 250 || breathVal <= 5) breathDir = -breathDir;
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for (int i = 0; i < NUM_LEDS; i++) {
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strip.setPixelColor(i, strip.Color(breathVal, 0, 0));
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}
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strip.show();
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}
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// ── Public API ──────────────────────────────────────────────────────
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void ledsInit() {
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strip.begin();
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strip.setBrightness(LED_BRIGHTNESS);
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strip.show();
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}
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void ledsSetBrightness(uint8_t b) {
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strip.setBrightness(b);
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}
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void ledsTouchFlash() {
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// Blocking 3x red blink (~300ms total)
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for (int flash = 0; flash < 3; flash++) {
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for (int i = 0; i < NUM_LEDS; i++)
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strip.setPixelColor(i, strip.Color(255, 0, 0));
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strip.show();
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delay(50);
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for (int i = 0; i < NUM_LEDS; i++)
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strip.setPixelColor(i, 0);
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strip.show();
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delay(50);
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}
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}
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void ledsUpdate() {
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GameData& gd = gameGetData();
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switch (gd.state) {
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case STATE_IDLE: animIdle(); break;
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case STATE_COUNTDOWN: animCountdown(); break;
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case STATE_PLAYING: animPlaying(); break;
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case STATE_GAME_OVER:
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if (gd.won) animGameOverWin();
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else animGameOverLose();
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break;
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}
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}
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