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FireYellow.h
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FireYellow.h
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// Slightly modified version of the fire pattern from MessageTorch by Lukas Zeller:
// https://github.com/plan44/messagetorch
// The MIT License (MIT)
// Copyright (c) 2014 Lukas Zeller
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
// torch parameters
uint16_t cycle_waitFireYellow = 1; // 0..255
byte flame_minFireYellow = 70; // 0..255
byte flame_maxFireYellow = 250; // 0..255
byte random_spark_probabilityFireYellow = 1; // 0..100
byte spark_minFireYellow = 60; // 0..255
byte spark_maxFireYellow = 255; // 0..255
byte spark_tfrFireYellow = 40; // 0..256 how much energy is transferred up for a spark per cycle
uint16_t spark_capFireYellow = 200; // 0..255: spark cells: how much energy is retained from previous cycle
uint16_t up_radFireYellow = 50; // up radiation
uint16_t side_radFireYellow = 40; // sidewards radiation
uint16_t heat_capFireYellow = 0; // 0..255: passive cells: how much energy is retained from previous cycle
byte red_bgFireYellow = 0;
byte green_bgFireYellow = 0;
byte blue_bgFireYellow = 0;
byte red_biasFireYellow = 150;
byte green_biasFireYellow = 150;
byte blue_biasFireYellow = 0;
int red_energyFireYellow = 255;
int green_energyFireYellow = 255;
int blue_energyFireYellow = 0;
byte upside_downFireYellow = 0; // if set, flame (or rather: drop) animation is upside down. Text remains as-is
// torch mode
// ==========
byte currentEnergyFireYellow[numLeds]; // current energy level
byte nextEnergyFireYellow[numLeds]; // next energy level
byte energyModeFireYellow[numLeds]; // mode how energy is calculated for this point
enum {
torch_passiveFireYellow = 0, // just environment, glow from nearby radiation
torch_nopFireYellow = 1, // no processing
torch_sparkFireYellow= 2, // slowly looses energy, moves up
torch_sparkFireYellow_temp = 3, // a spark still getting energy from the level below
};
inline void reduceFireYellow(byte &aByte, byte aAmount, byte aMin = 0)
{
int r = aByte-aAmount;
if (r<aMin)
aByte = aMin;
else
aByte = (byte)r;
}
inline void increaseFireYellow(byte &aByte, byte aAmount, byte aMax = 255)
{
int r = aByte+aAmount;
if (r>aMax)
aByte = aMax;
else
aByte = (byte)r;
}
uint16_t randomFireYellow(uint16_t aMinOrMax, uint16_t aMax = 0) // not really sure if this is needed at this stage
{
if (aMax==0) {
aMax = aMinOrMax;
aMinOrMax = 0;
}
uint32_t r = aMinOrMax;
aMax = aMax - aMinOrMax + 1;
r += rand() % aMax;
return r;
}
void resetEnergy6()
{
for (int i=0; i<numLeds; i++) {
currentEnergyFireYellow[i] = 0;
nextEnergyFireYellow[i] = 0;
energyModeFireYellow[i] = torch_passiveFireYellow;
}
}
void calcnextEnergyFireYellow()
{
int i = 0;
for (int y=0; y<levels; y++) {
for (int x=0; x<ledsPerLevel; x++) {
byte e = currentEnergyFireYellow[i];
byte m = energyModeFireYellow[i];
switch (m) {
case torch_sparkFireYellow: {
// loose transfer up energy as long as the is any
reduceFireYellow(e, spark_tfrFireYellow);
// cell above is temp spark, sucking up energy from this cell until empty
if (y<levels-1) {
energyModeFireYellow[i+ledsPerLevel] = torch_sparkFireYellow_temp;
}
break;
}
case torch_sparkFireYellow_temp: {
// just getting some energy from below
byte e2 = currentEnergyFireYellow[i-ledsPerLevel];
if (e2<spark_tfrFireYellow) {
// cell below is exhausted, becomes passive
energyModeFireYellow[i-ledsPerLevel] = torch_passive;
// gobble up rest of energy
increaseFireYellow(e, e2);
// loose some overall energy
e = ((int)e*spark_capFireYellow)>>8;
// this cell becomes active spark
energyModeFireYellow[i] = torch_sparkFireYellow;
}
else {
increaseFireYellow(e, spark_tfrFireYellow);
}
break;
}
case torch_passive: {
e = ((int)e*heat_capFireYellow)>>8;
increaseFireYellow(e, ((((int)currentEnergyFireYellow[i-1]+(int)currentEnergyFireYellow[i+1])*side_radFireYellow)>>9) + (((int)currentEnergyFireYellow[i-ledsPerLevel]*up_radFireYellow)>>8));
}
default:
break;
}
nextEnergyFireYellow[i++] = e;
}
}
}
const uint8_t energymapFireYellow[32] = {0, 64, 96, 112, 128, 144, 152, 160, 168, 176, 184, 184, 192, 200, 200, 208, 208, 216, 216, 224, 224, 224, 232, 232, 232, 240, 240, 240, 240, 248, 248, 248};
void calcNextColorsFireYellow()
{
for (int i=0; i<numLeds; i++) {
int ei; // index into energy calculation buffer
if (upside_downFireYellow)
ei = numLeds-i;
else
ei = i;
uint16_t e = nextEnergyFireYellow[ei];
currentEnergyFireYellow[ei] = e;
if (e>250)
leds[i] = CRGB(170, 170, e); // blueish extra-bright spark
else {
if (e>0) {
// energy to brightness is non-linear
byte eb = energymap[e>>3];
byte r = red_biasFireYellow;
byte g = green_biasFireYellow;
byte b = blue_biasFireYellow;
increaseFireYellow(r, (eb*red_energyFireYellow)>>8);
increaseFireYellow(g, (eb*green_energyFireYellow)>>8);
increaseFireYellow(b, (eb*blue_energyFireYellow)>>8);
leds[i] = CRGB(r, g, b);
}
else {
// background, no energy
leds[i] = CRGB(red_bgFireYellow, green_bgFireYellow, blue_bgFireYellow);
}
}
}
}
void injectRandomFireYellow()
{
// random flame energy at bottom row
for (int i=0; i<ledsPerLevel; i++) {
currentEnergyFireYellow[i] = random8(flame_minFireYellow, flame_maxFireYellow);
energyModeFireYellow[i] = torch_nopFireYellow;
}
// random sparks at second row
for (int i=ledsPerLevel; i<2*ledsPerLevel; i++) {
if (energyModeFireYellow[i]!=torch_sparkFireYellow && random8(100)<random_spark_probabilityFireYellow) {
currentEnergyFireYellow[i] = random8(spark_minFireYellow, spark_maxFireYellow);
energyModeFireYellow[i] = torch_sparkFireYellow;
}
}
}
uint16_t FireYellow() {
injectRandomFireYellow();
calcnextEnergyFireYellow();
calcNextColorsFireYellow();
return 1;
}