import numpy as np
import pylab as pl

# random number table:

rnlist = [0xB1, 0xCA, 0xEE, 0x6C, 0x5A, 0x71, 0x2E, 0x55, 0xD6, 0x00, 0xCC, 0x99, 0x90, 0x6B, 0x7D, 0xEB, 0x4F, 0xA0, 0x07, 0xAC, 0xDF, 0x8A, 0x56, 0x9E, 0xF1, 0x9A, 0x63, 0x75, 0x11, 0x91, 0xA3, 0xB8, 0x94, 0x73, 0xF7, 0x54, 0xD9, 0x6E, 0x72, 0xC0, 0xF4, 0x80, 0xDE, 0xB9, 0xBB, 0x8D, 0x66, 0x26, 0xD0, 0x36, 0xE1, 0xE9, 0x70, 0xDC, 0xCD, 0x2F, 0x4A, 0x67, 0x5D, 0xD2, 0x60, 0xB5, 0x9D, 0x7F, 0x45, 0x37, 0x50, 0x44, 0x78, 0x04, 0x19, 0x2C, 0xEF, 0xFD, 0x64, 0x81, 0x03, 0xDA, 0x95, 0x4C, 0x7A, 0x0B, 0xAD, 0x1F, 0xBA, 0xDD, 0x3E, 0xF9, 0xD7, 0x1A, 0x29, 0xF8, 0x18, 0xB3, 0x20, 0xF6, 0xD1, 0x5E, 0x34, 0x92, 0x7B, 0x24, 0x43, 0x88, 0x97, 0xD4, 0x0F, 0x35, 0xAA, 0x83, 0x68, 0x27, 0xA8, 0xD5, 0xBE, 0xFA, 0x14, 0x31, 0xAF, 0x10, 0x0D, 0xD8, 0x6A, 0xCE, 0x23, 0x61, 0xF3, 0x3D, 0xA4, 0x08, 0x33, 0xE3, 0xA9, 0x38, 0xE6, 0x93, 0x1D, 0x1C, 0xF0, 0x0E, 0x87, 0x59, 0x65, 0x82, 0xBC, 0xFF, 0xFE, 0x7E, 0x8F, 0xC1, 0x1E, 0xF5, 0xCB, 0x49, 0x02, 0x32, 0x09, 0xC4, 0x8E, 0xC6, 0x2B, 0x40, 0xA7, 0x17, 0x76, 0x3B, 0x16, 0x2A, 0xC8, 0xFB, 0xB2, 0x58, 0xA5, 0x15, 0xAE, 0x25, 0xCF, 0x46, 0xC7, 0x48, 0xB4, 0x0A, 0x3F, 0xC9, 0x06, 0x85, 0x51, 0x89, 0x62, 0x4D, 0x12, 0x8C, 0xEA, 0xA2, 0x98, 0x4B, 0x79, 0x6F, 0x5C, 0x47, 0x30, 0x1B, 0xE7, 0xC5, 0x22, 0x9C, 0xE8, 0x96, 0x3A, 0xE4, 0x7C, 0xE0, 0x69, 0xA1, 0xB7, 0x05, 0x39, 0x74, 0x01, 0x9F, 0xBD, 0xC3, 0x84, 0xFC, 0x77, 0x86, 0x13, 0x4E, 0xBF, 0xF2, 0x53, 0x5B, 0xED, 0x21, 0x8B, 0x6D, 0xC2, 0x41, 0xB6, 0xDB, 0x3C, 0xD3, 0x28, 0xEC, 0x2D, 0xE2, 0x9B, 0xA6, 0x42, 0x52, 0x57, 0x5F, 0xE5, 0xAB, 0xB0, 0x0C]

### change some of these:

stepid = 24         # set current stepid in field
bloop = 13          # set current battle loop in field
danger = 0          # set current danger value in field

distance = 128      # set field distance in steps

run = 113           # set danger increment for running
walk = run/4        # danger increment for walking
runwalk = run       # set whether to 'run' or 'walk' through the field
dlimit = 0
total_steps = 0

## graph stuff:

x1 = []
y1 = []
x2 = []
y2 = []
x3 = []
y3 = []

def ShowMyGraph():
plot1, = pl.plot(x1,y1,'r.')
plot2, = pl.plot(x2,y2,'b_')
plot3, = pl.plot(x3,y3,'-')

pl.title('Random Encounter Pattern')
pl.xlabel('Step')
pl.ylabel('Danger Value')

pl.xlim(0.0,150.0)                            # change x-axis range if needed
pl.ylim(0.0,10000)                            # change y-axis range if needed

pl.legend([plot1,plot2], ('Route', 'Battles'), 'best', numpoints=1)

#pl.xticks(arange(201, step=50))               # change amount of x-axis numbers
pl.show()

def PlotSteps():
x1.append(total_steps)
y1.append(danger)
x2.append(total_steps)
y2.append(dlimit)
x3.append(total_steps)
y3.append(dlimit)

# increment StepID and grab rnd number:

def GoStepID():
global stepid, bloop, rnd
stepid = (stepid + 1) & 0xFF                   # increment stepid + reset if > 255
if stepid == 0:                                # increment battle loop by 13 if 0
bloop = (bloop + 13) & 0xFF
rnd = (rnlist[stepid] - bloop) & 0xFF          # grab a rnd byte from rnlist


# call this function to take *1* step:

def BattleCheck():
global dinc, danger, rnd, dlimit, walk, total_steps
if runwalk == walk:                           # let's see if we are running or walking
dinc = walk                               # set the danger increment accordingly
else:
dinc = run
danger = (danger + dinc) & 0xFFFF              # increment danger value + reset if > 65535
GoStepID()                                     # this is for preemptive rnd
GoStepID()                                     # this is for battle; +2 stepID = 1 step
dlimit = ((rnd +1) *256) & 0xFFFF              # calc danger limit for battle
total_steps += 1                               # calculate total steps (for graph only)
PlotSteps()                                    # just plots the graph
if danger <= dlimit:                           # if danger is over limit it's battle time
print "Next step is SAFE!\n"
print "rnd: %d danger: %d, dlimit %d, stepid : %d total: %d\n" % (rnd, danger, dlimit, stepid, total_steps)
else:
print "Random Encounter on next stepid: %d!\n" % (stepid)
print "rnd: %d danger: %d, dlimit %d, stepid : %d total: %d\n" % (rnd, danger, dlimit, stepid, total_steps)
danger = 0                                 # danger is reset in battle


while distance > 0:                                # travel through the whole field
BattleCheck()
distance = distance - 1

ShowMyGraph()