add special wagon rainbow

achterbahn.ino

@@ -228,6 +228,12 @@ void spawnWagon(){
 
   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
   
+  //special spawns
+  if (random(0,50)==0){
+    tmpr.setType(1); //make rainbow
+    tmpr.setLength(_randomlength*random(1,3));
+  }
+  
   wagon_arr.push_back(tmpr);
   Serial.println("Spawned Wagon");
 }

wagon.cpp

@@ -8,6 +8,8 @@
   #define WRAPLEDPOS _numpixels //standard
   //#define WRAPLEDPOS (_numpixels-5) //led index which is also led 0
 
+#define TYPE_RAINBOW 1
+
 /*uint8_t GammaE[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2,
 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5,
@@ -42,6 +44,14 @@ Wagon::Wagon(int id,int numpixels, Adafruit_NeoPixel *strip,uint8_t *height,floa
   _lastpositivedirchangePosDifference=1000;
   _wagoncolor=wagoncolor;
   _health=1.0;
+  _type=0; //normal
+}
+
+void Wagon::setType(uint8_t t){
+  _type=t;
+}
+void Wagon::setLength(float l){
+  _trainlength=l;
 }
 
 bool Wagon::operator==(const Wagon &r) const {
@@ -235,6 +245,9 @@ void Wagon::updateGraphics()
     }
     
     uint32_t c=_wagoncolor;
+    if (_type==TYPE_RAINBOW){
+      c=Wheel(((int)((i-_pos)*256/_trainlength))%256,1.0);
+    }
     uint8_t _r = (uint8_t)(c >> 16)*healtpositive;
     uint8_t _g = (uint8_t)(c >>  8)*healtpositive;
     uint8_t _b = (uint8_t)c*healtpositive;

wagon.h

@@ -18,6 +18,8 @@ class Wagon
     int id();
     long spawntime();
     bool alive();
+    void setType(uint8_t t);
+    void setLength(float l);
   private:
     int _numpixels;
     Adafruit_NeoPixel *_strip;
@@ -33,6 +35,7 @@ class Wagon
     float _lastpositivedirchangePosDifference;
     uint32_t _wagoncolor;
     float _health;
+    uint8_t _type;
 };
 
 #endif