SoundEffects - Triggers Lightning LED and sounds effects

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Triggers Lightning LED and sounds effects

effects.cpp@0:a010acebe0ac, 2016-09-27 (annotated)

Committer:: AndyA
Date:: Tue Sep 27 11:06:11 2016 +0000
Revision:: 0:a010acebe0ac

Who changed what in which revision?

User	Revision	Line number	New contents of line
AndyA	0:a010acebe0ac	1	#include "mbed.h"
AndyA	0:a010acebe0ac	2
AndyA	0:a010acebe0ac	3	// LED on/off times.
AndyA	0:a010acebe0ac	4	// First time is time between toggling sound IO pin and starting lights
AndyA	0:a010acebe0ac	5	// Allows for audio playback start latency and lead in time.
AndyA	0:a010acebe0ac	6	const float thunder1Times[] = {0.1,0.3,0.1,0.3,0.1,0.2,0.2,0.3,0.1,0.3};
AndyA	0:a010acebe0ac	7	const int thunder1Len = 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 ;
AndyA	0:a010acebe0ac	8
AndyA	0:a010acebe0ac	9	const float thunder2Times[] = {0.1,0.3,0.1,0.3,0.1,0.2, 0.6 ,0.3,0.1,0.3,0.2,0.1, 2 ,0.3,0.15,0.4,0.1,0.2};
AndyA	0:a010acebe0ac	10	const int thunder2Len = 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 ;
AndyA	0:a010acebe0ac	11
AndyA	0:a010acebe0ac	12	// min time between starting a thunder playback and starting the next audio
AndyA	0:a010acebe0ac	13	const float thunder1AudioLen = 20;
AndyA	0:a010acebe0ac	14	const float thunder2AudioLen = 25;
AndyA	0:a010acebe0ac	15
AndyA	0:a010acebe0ac	16	// min time between starting a SFX playback and starting the next audio
AndyA	0:a010acebe0ac	17	const float effectAudioLen = 5;
AndyA	0:a010acebe0ac	18
AndyA	0:a010acebe0ac	19
AndyA	0:a010acebe0ac	20	// actual time between sound starts will be these numbers plus the thunder/effect length above.
AndyA	0:a010acebe0ac	21	const float minTimeBetweenSounds = 10;
AndyA	0:a010acebe0ac	22	const float maxTimeBetweenSounds = 20;
AndyA	0:a010acebe0ac	23
AndyA	0:a010acebe0ac	24	// percentage chance of lightnings
AndyA	0:a010acebe0ac	25	const int pLightning = 40;
AndyA	0:a010acebe0ac	26	const int pLightning2 = 15;
AndyA	0:a010acebe0ac	27
AndyA	0:a010acebe0ac	28
AndyA	0:a010acebe0ac	29	const int randomRange = 10*(maxTimeBetweenSounds - minTimeBetweenSounds); // range of time between sounds in units of 10ths of a second
AndyA	0:a010acebe0ac	30
AndyA	0:a010acebe0ac	31
AndyA	0:a010acebe0ac	32	DigitalOut soundEffectPin(P0_19);
AndyA	0:a010acebe0ac	33	DigitalOut thunder1Pin(P0_4);
AndyA	0:a010acebe0ac	34	DigitalOut thunder2Pin(P0_5);
AndyA	0:a010acebe0ac	35
AndyA	0:a010acebe0ac	36	DigitalOut LEDsPin(P0_18);
AndyA	0:a010acebe0ac	37
AndyA	0:a010acebe0ac	38	DigitalOut LED_1(LED1);
AndyA	0:a010acebe0ac	39	DigitalOut LED_2(LED2);
AndyA	0:a010acebe0ac	40	DigitalOut LED_3(LED3);
AndyA	0:a010acebe0ac	41	BusOut LED_47(LED4,LED5,LED6,LED7);
AndyA	0:a010acebe0ac	42
AndyA	0:a010acebe0ac	43
AndyA	0:a010acebe0ac	44
AndyA	0:a010acebe0ac	45
AndyA	0:a010acebe0ac	46	void LEDon()
AndyA	0:a010acebe0ac	47	{
AndyA	0:a010acebe0ac	48	LEDsPin = 1;
AndyA	0:a010acebe0ac	49	LED_1 = 1;
AndyA	0:a010acebe0ac	50	}
AndyA	0:a010acebe0ac	51
AndyA	0:a010acebe0ac	52	void LEDoff()
AndyA	0:a010acebe0ac	53	{
AndyA	0:a010acebe0ac	54	LEDsPin = 0;
AndyA	0:a010acebe0ac	55	LED_1 = 0;
AndyA	0:a010acebe0ac	56	}
AndyA	0:a010acebe0ac	57
AndyA	0:a010acebe0ac	58	void toggleLED()
AndyA	0:a010acebe0ac	59	{
AndyA	0:a010acebe0ac	60	LEDsPin = !LEDsPin;
AndyA	0:a010acebe0ac	61	LED_1 = LEDsPin;
AndyA	0:a010acebe0ac	62	}
AndyA	0:a010acebe0ac	63
AndyA	0:a010acebe0ac	64	void randomSoundEffect(void)
AndyA	0:a010acebe0ac	65	{
AndyA	0:a010acebe0ac	66	LED_2 = 1;
AndyA	0:a010acebe0ac	67	soundEffectPin = 0;
AndyA	0:a010acebe0ac	68	wait(1);
AndyA	0:a010acebe0ac	69	LED_2 = 0;
AndyA	0:a010acebe0ac	70	soundEffectPin = 1;
AndyA	0:a010acebe0ac	71	wait(effectAudioLen);
AndyA	0:a010acebe0ac	72	}
AndyA	0:a010acebe0ac	73
AndyA	0:a010acebe0ac	74	void thunderEffect1(void)
AndyA	0:a010acebe0ac	75	{
AndyA	0:a010acebe0ac	76	LEDoff();
AndyA	0:a010acebe0ac	77	thunder1Pin = 0;
AndyA	0:a010acebe0ac	78	int count = 0;
AndyA	0:a010acebe0ac	79	float totalTime = 0;
AndyA	0:a010acebe0ac	80	while (count < thunder1Len) {
AndyA	0:a010acebe0ac	81	wait (thunder1Times[count]);
AndyA	0:a010acebe0ac	82	totalTime += thunder1Times[count];
AndyA	0:a010acebe0ac	83	toggleLED();
AndyA	0:a010acebe0ac	84	count++;
AndyA	0:a010acebe0ac	85	}
AndyA	0:a010acebe0ac	86	LEDoff();
AndyA	0:a010acebe0ac	87	thunder1Pin = 1;
AndyA	0:a010acebe0ac	88	if (thunder1AudioLen > totalTime)
AndyA	0:a010acebe0ac	89	wait (thunder1AudioLen - totalTime);
AndyA	0:a010acebe0ac	90	}
AndyA	0:a010acebe0ac	91
AndyA	0:a010acebe0ac	92	void thunderEffect2(void)
AndyA	0:a010acebe0ac	93	{
AndyA	0:a010acebe0ac	94	LEDoff();
AndyA	0:a010acebe0ac	95	thunder2Pin = 0;
AndyA	0:a010acebe0ac	96	int count = 0;
AndyA	0:a010acebe0ac	97	float totalTime = 0;
AndyA	0:a010acebe0ac	98	while (count < thunder2Len) {
AndyA	0:a010acebe0ac	99	wait (thunder2Times[count]);
AndyA	0:a010acebe0ac	100	totalTime += thunder2Times[count];
AndyA	0:a010acebe0ac	101	toggleLED();
AndyA	0:a010acebe0ac	102	count++;
AndyA	0:a010acebe0ac	103	}
AndyA	0:a010acebe0ac	104	LEDoff();
AndyA	0:a010acebe0ac	105	thunder2Pin = 1;
AndyA	0:a010acebe0ac	106	if (thunder2AudioLen > totalTime)
AndyA	0:a010acebe0ac	107	wait (thunder2AudioLen - totalTime);
AndyA	0:a010acebe0ac	108	}
AndyA	0:a010acebe0ac	109
AndyA	0:a010acebe0ac	110
AndyA	0:a010acebe0ac	111	void playEffect(void)
AndyA	0:a010acebe0ac	112	{
AndyA	0:a010acebe0ac	113	int randomOrder = rand() % 100;
AndyA	0:a010acebe0ac	114	LED_47 = randomOrder;
AndyA	0:a010acebe0ac	115	LED_3 = 1;
AndyA	0:a010acebe0ac	116	if (randomOrder < pLightning) {
AndyA	0:a010acebe0ac	117	LED_47 = 1;
AndyA	0:a010acebe0ac	118	thunderEffect1();
AndyA	0:a010acebe0ac	119	} else if (randomOrder < (pLightning+pLightning2)) {
AndyA	0:a010acebe0ac	120	LED_47 = 2;
AndyA	0:a010acebe0ac	121	thunderEffect2();
AndyA	0:a010acebe0ac	122	} else {
AndyA	0:a010acebe0ac	123	LED_47 = 3;
AndyA	0:a010acebe0ac	124	randomSoundEffect();
AndyA	0:a010acebe0ac	125	}
AndyA	0:a010acebe0ac	126	LED_3 = 0;
AndyA	0:a010acebe0ac	127	}
AndyA	0:a010acebe0ac	128
AndyA	0:a010acebe0ac	129	void setupRandom(void)
AndyA	0:a010acebe0ac	130	{
AndyA	0:a010acebe0ac	131	AnalogIn RandomIn(P0_14);
AndyA	0:a010acebe0ac	132	// create a 32 bit number out of 32 LSBs from the ADC
AndyA	0:a010acebe0ac	133	uint32_t seedValue = 0;
AndyA	0:a010acebe0ac	134	uint16_t value;
AndyA	0:a010acebe0ac	135	uint8_t counter;
AndyA	0:a010acebe0ac	136
AndyA	0:a010acebe0ac	137	for (counter = 0; counter < 32; counter++) {
AndyA	0:a010acebe0ac	138	seedValue = seedValue<<1;
AndyA	0:a010acebe0ac	139	value = RandomIn.read_u16(); // reads a 10 bit ADC normalised to 16 bits.
AndyA	0:a010acebe0ac	140	if (value & 0x0040) // LSB of ADC output = 1
AndyA	0:a010acebe0ac	141	seedValue++;
AndyA	0:a010acebe0ac	142	}
AndyA	0:a010acebe0ac	143
AndyA	0:a010acebe0ac	144	srand(seedValue);
AndyA	0:a010acebe0ac	145	}
AndyA	0:a010acebe0ac	146
AndyA	0:a010acebe0ac	147	main()
AndyA	0:a010acebe0ac	148	{
AndyA	0:a010acebe0ac	149	LED_47 = 0;
AndyA	0:a010acebe0ac	150	LED_2 = 0;
AndyA	0:a010acebe0ac	151	LED_3 = 0;
AndyA	0:a010acebe0ac	152	LEDoff();
AndyA	0:a010acebe0ac	153	thunder1Pin = 1;
AndyA	0:a010acebe0ac	154	thunder2Pin = 1;
AndyA	0:a010acebe0ac	155	soundEffectPin = 1;
AndyA	0:a010acebe0ac	156
AndyA	0:a010acebe0ac	157	setupRandom();
AndyA	0:a010acebe0ac	158
AndyA	0:a010acebe0ac	159	float randomTime;
AndyA	0:a010acebe0ac	160	while (true) {
AndyA	0:a010acebe0ac	161	randomTime = minTimeBetweenSounds + (rand() % randomRange)/10.0;
AndyA	0:a010acebe0ac	162	wait(randomTime);
AndyA	0:a010acebe0ac	163	playEffect();
AndyA	0:a010acebe0ac	164	}
AndyA	0:a010acebe0ac	165	}

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	27 Sep 2016
Imports:	2
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	1
Followers:	1

effects.cpp@0:a010acebe0ac, 2016-09-27 (annotated)

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