/*
 * http://code.google.com/p/arduino-seven-segment/
 *
 * This is a demo of the seven segment library
 * that shows how to set single segments
 *
 * 2018-11-30 Modified to demonstrate METP0000_lib.h
 * by Tony Wills
 */

#include <METP0000_lib.h>

// Pin definitions
#define N_SCK 4
#define SI 5
#define BUSY 10
#define CS 8

#define FEATURE_COUNT 2		// Number of times to try each feature
#define DIGIT_COUNT 6 		// Number of digits supported in screen
#define WAIT 100		// Delay between frames

// Initialise LCD library
METP0000 lcd(N_SCK, SI, BUSY, CS);

void setup() {
	// Set display driver
	lcd.begin(6, 1);
}

// Turn all segments on and off
void onAndOff() {
	for (int t = 0; t < FEATURE_COUNT; t++){
		// Turn all known segments on
		lcd.home();
		for (int d =0; d < DIGIT_COUNT; d++) {
			lcd.setSegment((d << 12) + 0x777);
	}
		delay(WAIT * 5);
		// Turn all known segments off
		lcd.clear();
		delay(WAIT * 5);
	}
}

// Do spin animation
void spin() {int segmentBarsData[7] = {0x400, 0x040, 0x010, 0x200, 0x001, 0x004, 0x100}; // 7 segment bars a to g

	for (int t = 0; t < FEATURE_COUNT; t++){
		for (int s = 0; s < 6; s++){
			// Turn on specific segments
			for (int d = 0; d < DIGIT_COUNT; d++)
				lcd.setSegment((d << 12) + segmentBarsData[s]);
			delay(WAIT);

			// Turn the segments back off
			for (int d = 0; d < DIGIT_COUNT; d++)
				lcd.clearSegment((d << 12) + segmentBarsData[s]);
		}
	}
}

// Animate horizontal segments
void horizontalBars() {

	// Segment array for horizontal bars
	int horizontalBarsData[3] = {0x400, 0x100, 0x200}; // 7 segments a, g, d

	for (int t = 0; t < FEATURE_COUNT; t++){
		// Draw bars
		for (int i = 0; i < 3; i++){
			for (int d = 0; d < DIGIT_COUNT; d++)
				lcd.setSegment((d << 12) + horizontalBarsData[i]);
			delay(WAIT);
		}
		// Clear bars
		for (int i = 0; i < 3; i++){
			for (int d = 0; d < DIGIT_COUNT; d++)
				lcd.clearSegment((d << 12) + horizontalBarsData[i]);
			delay(WAIT);
		}
	}
}

// Animate vertical segments
void verticalBars(){
	for (int t = 0; t < FEATURE_COUNT; t++){
		// Draw bars
		for (int d = 0; d < DIGIT_COUNT; d++){
			lcd.setSegment((d << 12) + 0x004); // segment f
			lcd.setSegment((d << 12) + 0x001); // segment e
			delay(WAIT);
			lcd.setSegment((d << 12) + 0x040); // segment b
			lcd.setSegment((d << 12) + 0x010); // segment c
			delay(WAIT);
		}
		// Clear bars
		for (int d = 0; d < DIGIT_COUNT; d++){
			lcd.clearSegment((d << 12) + 0x004);
			lcd.clearSegment((d << 12) + 0x001);
			delay(WAIT);
			lcd.clearSegment((d << 12) + 0x040);
			lcd.clearSegment((d << 12) + 0x010);
			delay(WAIT);
		}
	}
}

// Print some text
void printText(){
	const char* message[6] = { "This", "is", "Some", "Cool", "LCD", "SHIT" };
	for (int t = 0; t < FEATURE_COUNT; t++){
		for (int m = 0; m < 6; m++){
			lcd.print(message[m]);lcd.print("      ");
			delay(WAIT * 10);
			lcd.home();
		}
	}
	lcd.clear();
}

// Scroll some text
void scrollingText(){
	char buf[] = "    Sometimes you have to scroll to get the message across... ";
	for (char* p = buf; p < buf + strlen(buf); p++){
		lcd.print(p);
		delay(WAIT * 2);
		lcd.home();
	}

	lcd.clear();
}

// Animate some zeroes
void printAnimation(){
	const char* message[9] = { ".", "o", "0", "()", "( )", "(  )", "POP", "----", "" };
	for (int t = 0; t < FEATURE_COUNT; t++){
		for (int m = 0; m < 9; m++){
			lcd.print(message[m]);
			lcd.home();
			delay(WAIT * 5);
		}
	}
	lcd.clear();
}

// Toggle random segments on and off
void randomSegments(){
	/*for (int t = 0; t < 100; t++){
		int segment = random(32);
		lcd.setSegment(segment, !lcd.getSegment(segment));
		lcd.display();
		delay(WAIT);
	}*/
	lcd.clear();
}

void loop(){
	randomSegments();
	onAndOff();
	spin();
	horizontalBars();
	verticalBars();
	printText();
	scrollingText();
	printAnimation();
	randomSegments();
}