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ws2812-achterbahn
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fix physics calculation. move wagon mass back to their corresponding terms

This commit is contained in:
interfisch 2018-07-10 23:18:48 +02:00
parent b0edbbc7a1
commit ac6015cf65
4 changed files with 17 additions and 15 deletions
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4
achterbahn.ino
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@ -226,7 +226,7 @@ void spawnWagon(){
// pos, wagonlength, startvel , startacc, trainmass, wagoncolor
//Wagon tmpr = Wagon(maxid++,NUMPIXELS,&strip, height, random(0, 20), _randomlength, random(map(_randomlength,3,40,1,1), map(_randomlength,3,40, 13,40))/10.0 , 0 , 5 , Wheel((uint8_t)random(0,255))); //spawn new wagon
Wagon tmpr = Wagon(maxid++,NUMPIXELS,&strip, height, NUMPIXELS+_randomlength, _randomlength, -random(map(_randomlength,3,40,10,20), map(_randomlength,3,40, 22,60))/10.0 , 0 , 5 , Wheel((uint8_t)random(0,255))); //spawn new wagon
Wagon tmpr = Wagon(maxid++,NUMPIXELS,&strip, height, NUMPIXELS+_randomlength, _randomlength, -random(map(_randomlength,3,40,10,20), map(_randomlength,3,40, 22,60))/10.0 , 0 , 2.0 , Wheel((uint8_t)random(0,255))); //spawn new wagon
//special spawns
if (random(0,50)==0){
@ -313,7 +313,7 @@ void checkSerial(){
int spawnstartacc=rest.substring(0,rest.indexOf(',')).toInt(); //part to next ,
rest=rest.substring(rest.indexOf(',')+1); //part after ,
int spawnmass=rest.substring(0,rest.indexOf(',')).toInt(); //part to next ,
float spawnmass=rest.substring(0,rest.indexOf(',')).toInt()/1000.0; //part to next , //mass in gramm
rest=rest.substring(rest.indexOf(',')+1); //part after ,
int spawncolor=rest.substring(0).toInt(); //part to next ,

10
achterbahnconfig/achterbahnconfig/achterbahnconfig.pde
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@ -29,7 +29,7 @@ int spawnstartacc;
int maxspawnstartacc=100;
Slider slSpawnMass;
int spawnmass;
int maxspawnmass=200;
int maxspawnmass=10000;
Slider slSpawnColor;
int spawncolor;
int maxspawncolor=255;
@ -91,7 +91,7 @@ void setup() {
slSpawnPos = cp5.addSlider("spawnpos")
.setRange(0,numpixels-1)
.setValue(0)
.setValue(590)
.setPosition(220,80)
.setSize(300,10);
@ -103,7 +103,7 @@ void setup() {
slSpawnStartvel = cp5.addSlider("spawnstartvel")
.setRange(-maxspawnstartvel,maxspawnstartvel)
.setValue(70)
.setValue(-20)
.setPosition(220,80+15*2)
.setSize(maxspawnstartvel*2,10);
@ -115,9 +115,9 @@ void setup() {
slSpawnMass = cp5.addSlider("spawnmass")
.setRange(1,maxspawnmass)
.setValue(10)
.setValue(1000)
.setPosition(220,80+15*4)
.setSize(maxspawnmass-1,10);
.setSize(maxspawnmass/100-1,10);
slSpawnColor = cp5.addSlider("spawncolor")
.setRange(0,maxspawncolor)

0
achterbahnconfig/achterbahnconfig.pde → achterbahnconfig/backup_achterbahnconfig.pde
View File

18
wagon.cpp
View File

@ -77,10 +77,10 @@ void Wagon::updatePhysics(float updatedelayms)
}*/
#define CONST_G 9.81
#define PIXELDISTANCE 1.6666667 // 1/60.0 * 100
#define C_ROLL 0.001 // = Croll * G https://de.wikipedia.org/wiki/Rollwiderstand 0.001 (zug)
#define AIRRESFIRST 0.18 //C_w*A*0.5*rho Air resistance: C_w * A * 0.5 * rho (.... *v^2)
#define AIRRES 0.01 //for slipstream at second wagon
#define AIRRESMUL 0.7 //how much of air resistance the next wagon has
#define C_ROLL 0.001 // = Croll https://de.wikipedia.org/wiki/Rollwiderstand 0.001 (zug)
#define AIRRESFIRST 0.018 //C_w*A*0.5*rho Air resistance: C_w * A * 0.5 * rho (.... *v^2) 0.18
#define AIRRES 0.001 //for slipstream at second wagon
#define AIRRESMUL 0.2 //how much of air resistance the next wagon has
//http://www.kfz-tech.de/Biblio/Formelsammlung/Luftwiderstand.htm C_w 0.6
//rho Massendichte luft 1,2041
//A = 1m^2
@ -105,10 +105,10 @@ void Wagon::updatePhysics(float updatedelayms)
//_acc += CONST_G * cos(beta) - C_ROLLG*sin(beta) - AIRRES/m*_vel*_vel;
float aa=CONST_G * cos(beta) *updatedelayms/1000; //Gravity and m/s^2 time correction
float aa=CONST_G *m* cos(beta) *updatedelayms/1000; //Gravity and m/s^2 time correction
//Roll Resistance
float bb=C_ROLL*CONST_G*updatedelayms/1000*sin(beta); //roll resistance
float bb=C_ROLL*m*CONST_G*updatedelayms/1000*sin(beta); //roll resistance
if (_vel<0){
bb*=-1;
@ -117,9 +117,11 @@ void Wagon::updatePhysics(float updatedelayms)
//Air Resistance
float cc=0;
if (wagonnumber==0){ //first wagon
cc=AIRRESFIRST/m*pow(_vel,2); //air resistance for first wagon
//cc=AIRRESFIRST/m*pow(_vel,2); //air resistance for first wagon
cc=AIRRESFIRST*pow(_vel,2); //air resistance for first wagon
}else {
cc=AIRRES/m*pow(_vel,2) *pow(AIRRESMUL,wagonnumber-1); //air resistance
//cc=AIRRES/m*pow(_vel,2) *pow(AIRRESMUL,wagonnumber-1); //air resistance
cc=AIRRES*pow(_vel,2) *pow(AIRRESMUL,wagonnumber-1); //air resistance
}
if (_vel<0){