having an issue with nested if statements

[ljmetzger]

You might want to simplify your design to reduce the number of nested if statements. Perhaps something like the following example code. I arbitrarily defined SINGLE, DOUBLE etc. to be numbers. You can define them to anything you like.

# State Machine Definitions
# Bit 0 = First Base
# Bit 1 = Second Base
# Bit 2 = Third Base
# Bit 3 = Run Scored
# Bit 4 = Run Scored
# Bit 5 = Run Scored
# Bit 6 = Run Scored

# Single = Multiply by 2 and add 1
# Double = Multiply by 4 and add 2
# Triple = Multiply by 8 and add 4
# Home Run = Multiply by 16 and add 8


FIRST = 1
SECOND = 2
FIRST_AND_SECOND = 3
THIRD = 4
FIRST_AND_THIRD = 5
SECOND_AND_THIRD = 6
BASES_LOADED = 7

SINGLE = 100
DOUBLE = 200
TRIPLE = 300
HOMER = 400

def get_new_state(old_state, runs, action):
    if action == SINGLE:
        new_state = old_state * 2 + 1
    elif action == DOUBLE:
        new_state = old_state * 4 + 2
    elif action == TRIPLE:
        new_state = old_state * 8 + 4
    elif action == HOMER:
        new_state = old_state * 16 + 8
    #    
    # Perform bitwise and on bits 3 thru 6
    runs_added = 0
    mask = 4
    for bit_number in range(3,7):
       mask *= 2
       if mask & new_state:
           runs_added += 1       
    #
    new_state = new_state & 7           
    runs += runs_added
    #
    return new_state, runs_added
    
team1runs=0
team2runs=0
new_state = 0

state = FIRST_AND_THIRD
action = TRIPLE   
print(" Old team1 state =  {}    runs = {}".format(state, team1runs)) 
state, team1runs = get_new_state(state, team1runs, action)
print(" New team1 state =  {}    runs = {}".format(state, team1runs)) 

Output:
Old team1 state =  5    runs = 0
New team1 state =  4    runs = 2

For more information about bitwise math see https://www.tutorialspoint.com/python/bi...xample.htm

Lewis