demo.tunnel

/*
 * demo.tunnel
 *
 * This demo simulates going through a multicolored tunnel.
 *
 */

#ifndef DEMO_H_
#define DEMO_H_

#define	DEMO

#define	HOLD_FRAMES	0

int	numFrames;

unsigned char	color;
unsigned char	index;
unsigned char	new_blue;
unsigned char	new_green;
unsigned char	new_red;

void setup(void)
{
	// This code is invoked once to initialize the demo...

	numFrames = 0;
	color = 0;
	index = 0;
}

void increment_intensity(void)
{
	unsigned int	i;

	// Increment intensity if not 0 and not max
	for (i = 0; i < 192; i++)
		if (display_buffer[i] && display_buffer[i] < FULL_INTENSITY)
			display_buffer[i]++;
}

void decrement_intensity(void)
{
	unsigned int	i;

	// Decrement intensity if not 0 and not max
	for (i = 0; i < 192; i++)
		if (display_buffer[i] && display_buffer[i] < FULL_INTENSITY)
			display_buffer[i]--;
}

void loop(void)
{
	// This code is invoked once each time the LEDs are scanned...

	unsigned int	i;

	if (numFrames > 0)
		{
		// Hold current image for some frames
		numFrames--;
		return;
		}
	numFrames = HOLD_FRAMES;

	if (index == 0)
		{
		// Next color
		color++;
		if (color > 7)
			color = 1;

		if (color & 1)
			new_red = 1;
		else
			new_red = 0;
		if (color & 2)
			new_green = 1;
		else
			new_green = 0;
		if (color & 4)
			new_blue = 1;
		else
			new_blue = 0;

		index = 112;
		}

	increment_intensity();
	if (index == 112)
		{
		// Turn on center
		display_buffer[ 72 +  9 + 0] = new_red;
		display_buffer[ 72 +  9 + 1] = new_green;
		display_buffer[ 72 +  9 + 2] = new_blue;

		display_buffer[ 72 + 12 + 0] = new_red;
		display_buffer[ 72 + 12 + 1] = new_green;
		display_buffer[ 72 + 12 + 2] = new_blue;

		display_buffer[ 96 +  9 + 0] = new_red;
		display_buffer[ 96 +  9 + 1] = new_green;
		display_buffer[ 96 +  9 + 2] = new_blue;

		display_buffer[ 96 + 12 + 0] = new_red;
		display_buffer[ 96 + 12 + 1] = new_green;
		display_buffer[ 96 + 12 + 2] = new_blue;
		}
	else if (index == 96)
		{
		// Turn on inner ring
		for (i = 6; i <= 15; i = i + 3)
			{
			display_buffer[ 48 +  i + 0] = new_red;
			display_buffer[ 48 +  i + 1] = new_green;
			display_buffer[ 48 +  i + 2] = new_blue;

			display_buffer[120 +  i + 0] = new_red;
			display_buffer[120 +  i + 1] = new_green;
			display_buffer[120 +  i + 2] = new_blue;
			}

		display_buffer[ 72 +  6 + 0] = new_red;
		display_buffer[ 72 +  6 + 1] = new_green;
		display_buffer[ 72 +  6 + 2] = new_blue;

		display_buffer[ 96 +  6 + 0] = new_red;
		display_buffer[ 96 +  6 + 1] = new_green;
		display_buffer[ 96 +  6 + 2] = new_blue;

		display_buffer[ 72 + 15 + 0] = new_red;
		display_buffer[ 72 + 15 + 1] = new_green;
		display_buffer[ 72 + 15 + 2] = new_blue;

		display_buffer[ 96 + 15 + 0] = new_red;
		display_buffer[ 96 + 15 + 1] = new_green;
		display_buffer[ 96 + 15 + 2] = new_blue;
		}
	else if (index == 80)
		{
		// Turn on middle ring
		for (i = 3; i <= 18; i = i + 3)
			{
			display_buffer[ 24 +  i + 0] = new_red;
			display_buffer[ 24 +  i + 1] = new_green;
			display_buffer[ 24 +  i + 2] = new_blue;

			display_buffer[144 +  i + 0] = new_red;
			display_buffer[144 +  i + 1] = new_green;
			display_buffer[144 +  i + 2] = new_blue;
			}
		for (i = 48; i <= 120; i = i + 24)
			{
			display_buffer[ i +  3 + 0] = new_red;
			display_buffer[ i +  3 + 1] = new_green;
			display_buffer[ i +  3 + 2] = new_blue;

			display_buffer[ i + 18 + 0] = new_red;
			display_buffer[ i + 18 + 1] = new_green;
			display_buffer[ i + 18 + 2] = new_blue;
			}
		}
	else if (index == 64)
		{
		// Turn on outer ring
		for (i = 0; i <= 21; i = i + 3)
			{
			display_buffer[  0 +  i + 0] = new_red;
			display_buffer[  0 +  i + 1] = new_green;
			display_buffer[  0 +  i + 2] = new_blue;

			display_buffer[168 +  i + 0] = new_red;
			display_buffer[168 +  i + 1] = new_green;
			display_buffer[168 +  i + 2] = new_blue;
			}
		for (i = 24; i <= 144; i = i + 24)
			{
			display_buffer[ i +  0 + 0] = new_red;
			display_buffer[ i +  0 + 1] = new_green;
			display_buffer[ i +  0 + 2] = new_blue;

			display_buffer[ i + 21 + 0] = new_red;
			display_buffer[ i + 21 + 1] = new_green;
			display_buffer[ i + 21 + 2] = new_blue;
			}
		}

	index--;
}

#endif /* DEMO_H_ */