[amibroker] Multiple buy conditions in loop???

[christianvost]

I need to write several buy conditions in a loop. Originally I had one buy 
condition (and BuyPrice) outside the loop, and then several exit conditions in 
the loop. this worked fine. Now I have added more buy conditions which I want 
to test, and tried many times to code this, but I get bizzarre pricing, and I 
give up!
Could someone please help by checking (the nasty looking) code sample below, 
and pointing out what I'm doing wrong... 
I know that there is a really easy way to write this without the loop, and even 
nesting buy conditions using IIF, but I need to know how to loop through the 
buy conditions, and assign a value to BuyPrice, if a certain buy condition is 
met. I then need to test various exit conditions, using that BuyPrice... 

// Basic Looping Buy and Sell exercise
// 

M1         = Ref(MA(C,14),-1);
C1         = Ref(C,-1);
BuyPrice   = 0;
SellPrice  = 0;
Buy        = 0;
Sell       = 0;
Pt         = 0.1; //fx AUDJPY
Sl         = 0.2; 
PriceAtBuy = 0;   //Scalar
Exit       = 0;   //Scalar

for(i=0; i<BarCount; i++)
{
 if(Buy[i]==0 AND PriceAtBuy==0 AND C1[i]>M1[i] AND L[i]<=M1[i])
 {
  Buy[i] = 1;
  BuyPrice[i] = M1[i];
  PriceAtBuy = BuyPrice[i];
 }
 else if(Buy[i]==1 AND PriceAtBuy>0) // Reset Buy[i] to zero here?
 {
  Buy[i] = 0;
  BuyPrice = 0;
 }
 else if(PriceAtBuy>0)
 {
  if(Exit==0 AND H[i]>=PriceAtBuy+Pt)// why wont the system exit?
  {
   Sell[i] = 1;
   SellPrice[i] = PriceAtBuy+Pt;
   Exit = 1;
  }
  if(Exit==0 AND L[i]<=PriceAtBuy-Sl)
  {
   Sell[i] = 1;
   SellPrice[i] = PriceAtBuy-Sl;
   Exit = 1;
  }
  if(Exit>0) //Reset Scalars
  {
   Sell[i] = 0;
   PriceAtBuy = 0;
   Exit = 0;
  }
 }
}
SetPositionSize( 100000, spsValue );