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%import textio
%import conv
%import diskio
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%import string
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%import test_stack
%option no_sysinit
%zeropage basicsafe
; Prog8 adaptation of the Text-Elite galaxy4 system trading simulation engine.
; Original C-version obtained from: http://www.elitehomepage.org/text/index.htm
; Note: this program is compatible with C64 and CX16.
perf4 {
const ubyte numforLave = 7 ; Lave is 7th generated planet4 in galaxy4 one
const ubyte numforZaonce = 129
const ubyte numforDiso = 147
const ubyte numforRiedquat = 46
sub start() {
txt.lowercase()
txt.print("\u000c\n --- TextElite v1.1 ---\n")
galaxy4.travel_to(1, numforLave)
market4.init(0) ; Lave's market4 is seeded with 0
ship4.init()
planet4.display(false)
repeat {
; test_stack.test()
str input = "????????"
txt.print("\nCash: ")
util4.print_10s(ship4.cash)
txt.print("\nCommand (?=help): ")
ubyte num_chars = txt.input_chars(input)
txt.chrout('\n')
if num_chars {
when input[0] {
'?' -> {
txt.print("\nCommands are:\n"+
"buy jump info cash >=save\n"+
"sell teleport market4 hold <=load\n"+
"fuel galhyp local quit\n")
}
'q' -> break
'b' -> trader4.do_buy()
's' -> trader4.do_sell()
'f' -> trader4.do_fuel()
'j' -> trader4.do_jump()
't' -> trader4.do_teleport()
'g' -> trader4.do_next_galaxy4()
'i' -> trader4.do_info()
'm' -> trader4.do_show_market4()
'l' -> trader4.do_local()
'c' -> trader4.do_cash()
'h' -> trader4.do_hold()
'<' -> trader4.do_load()
'>' -> trader4.do_save()
}
}
}
}
}
trader4 {
str Savegame = "↑commander.save"
str input = "??????????"
ubyte num_chars
struct SaveData {
ubyte galaxy4
ubyte planet4
ubyte cargo0
ubyte cargo1
ubyte cargo2
ubyte cargo3
ubyte cargo4
ubyte cargo5
ubyte cargo6
ubyte cargo7
ubyte cargo8
ubyte cargo9
ubyte cargo10
ubyte cargo11
ubyte cargo12
ubyte cargo13
ubyte cargo14
ubyte cargo15
ubyte cargo16
uword cash
ubyte max_cargo
ubyte fuel
}
SaveData savedata
sub do_load() {
txt.print("\nLoading universe...")
if diskio.load(8, Savegame, &savedata) {
txt.print("ok\n")
} else {
txt.print("\ni/o error: ")
txt.print(diskio.status(8))
txt.chrout('\n')
return
}
ship4.cash = savedata.cash
ship4.Max_cargo = savedata.max_cargo
ship4.fuel = savedata.fuel
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sys.memcopy(&savedata.cargo0, ship4.cargohold, len(ship4.cargohold))
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galaxy4.travel_to(savedata.galaxy4, savedata.planet4)
planet4.display(false)
}
sub do_save() {
savedata.galaxy4 = galaxy4.number
savedata.planet4 = planet4.number
savedata.cash = ship4.cash
savedata.max_cargo = ship4.Max_cargo
savedata.fuel = ship4.fuel
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sys.memcopy(ship4.cargohold, &savedata.cargo0, len(ship4.cargohold))
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txt.print("\nSaving universe...")
diskio.delete(8, Savegame)
if diskio.save(8, Savegame, &savedata, sizeof(savedata)) {
txt.print("ok\n")
} else {
txt.print("\ni/o error: ")
txt.print(diskio.status(8))
txt.chrout('\n')
}
}
sub do_jump() {
txt.print("\nJump to what system? ")
jump_to_system()
}
sub do_teleport() {
txt.print("\nCheat! Teleport to what system? ")
ubyte fuel = ship4.fuel
ship4.fuel = 255
jump_to_system()
ship4.fuel = fuel
}
sub jump_to_system() {
void txt.input_chars(input)
ubyte current_planet4 = planet4.number
ubyte x = planet4.x
ubyte y = planet4.y
if galaxy4.search_closest_planet4(input) {
ubyte distance = planet4.distance(x, y)
if distance <= ship4.fuel {
galaxy4.init_market4_for_planet4()
ship4.fuel -= distance
txt.print("\n\nHyperspace jump! Arrived at:\n")
planet4.display(true)
return
}
txt.print("Insufficient fuel\n")
} else {
txt.print(" Not found!\n")
}
galaxy4.travel_to(galaxy4.number, current_planet4)
}
sub do_buy() {
txt.print("\nBuy what commodity? ")
str commodity = "???????????????"
void txt.input_chars(commodity)
ubyte ci = market4.match(commodity)
if ci & 128 {
txt.print("Unknown\n")
} else {
txt.print("\nHow much? ")
void txt.input_chars(input)
ubyte amount = conv.str2ubyte(input)
if market4.current_quantity[ci] < amount {
txt.print(" Insufficient supply!\n")
} else {
uword price = market4.current_price[ci] * amount
txt.print(" Total price: ")
util4.print_10s(price)
if price > ship4.cash {
txt.print(" Not enough cash!\n")
} else {
ship4.cash -= price
ship4.cargohold[ci] += amount
market4.current_quantity[ci] -= amount
}
}
}
}
sub do_sell() {
txt.print("\nSell what commodity? ")
str commodity = "???????????????"
void txt.input_chars(commodity)
ubyte ci = market4.match(commodity)
if ci & 128 {
txt.print("Unknown\n")
} else {
txt.print("\nHow much? ")
void txt.input_chars(input)
ubyte amount = conv.str2ubyte(input)
if ship4.cargohold[ci] < amount {
txt.print(" Insufficient supply!\n")
} else {
uword price = market4.current_price[ci] * amount
txt.print(" Total price: ")
util4.print_10s(price)
ship4.cash += price
ship4.cargohold[ci] -= amount
market4.current_quantity[ci] += amount
}
}
}
sub do_fuel() {
txt.print("\nBuy fuel. Amount? ")
void txt.input_chars(input)
ubyte buy_fuel = 10*conv.str2ubyte(input)
ubyte max_fuel = ship4.Max_fuel - ship4.fuel
if buy_fuel > max_fuel
buy_fuel = max_fuel
uword price = buy_fuel as uword * ship4.Fuel_cost
if price > ship4.cash {
txt.print("Not enough cash!\n")
} else {
ship4.cash -= price
ship4.fuel += buy_fuel
}
}
sub do_cash() {
txt.print("\nCheat! Set cash amount: ")
void txt.input_chars(input)
ship4.cash = conv.str2uword(input)
}
sub do_hold() {
txt.print("\nCheat! Set cargohold size: ")
void txt.input_chars(input)
ship4.Max_cargo = conv.str2ubyte(input)
}
sub do_next_galaxy4() {
galaxy4.travel_to(galaxy4.number+1, planet4.number)
planet4.display(false)
}
sub do_info() {
txt.print("\nSystem name (empty=current): ")
num_chars = txt.input_chars(input)
if num_chars {
ubyte current_planet4 = planet4.number
if galaxy4.search_closest_planet4(input) {
planet4.display(false)
} else {
txt.print(" Not found!")
}
galaxy4.travel_to(galaxy4.number, current_planet4)
} else {
planet4.display(false)
}
}
sub do_local() {
galaxy4.local_area()
}
sub do_show_market4() {
market4.display()
txt.print("\nFuel: ")
util4.print_10s(ship4.fuel)
txt.print(" Cargohold space: ")
txt.print_ub(ship4.cargo_free())
txt.print("t\n")
}
}
ship4 {
const ubyte Max_fuel = 70
const ubyte Fuel_cost = 2
ubyte Max_cargo = 20
ubyte fuel = Max_fuel
uword cash = 1000 ; actually has to be 4 bytes for the ultra rich....
ubyte[17] cargohold = 0
sub init() {
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sys.memset(cargohold, len(cargohold), 0)
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}
sub cargo_free() -> ubyte {
ubyte ci
ubyte total = 0
for ci in 0 to len(cargohold)-1 {
if market4.units[ci]==0 ; tonnes only
total += cargohold[ci]
}
return Max_cargo - total
}
}
market4 {
ubyte[17] baseprices = [$13, $14, $41, $28, $53, $C4, $EB, $9A, $75, $4E, $7C, $B0, $20, $61, $AB, $2D, $35]
byte[17] gradients = [-$02, -$01, -$03, -$05, -$05, $08, $1D, $0E, $06, $01, $0d, -$09, -$01, -$01, -$02, -$01, $0F]
ubyte[17] basequants = [$06, $0A, $02, $E2, $FB, $36, $08, $38, $28, $11, $1D, $DC, $35, $42, $37, $FA, $C0]
ubyte[17] maskbytes = [$01, $03, $07, $1F, $0F, $03, $78, $03, $07, $1F, $07, $3F, $03, $07, $1F, $0F, $07]
ubyte[17] units = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 0]
str[17] names = ["Food", "Textiles", "Radioactives", "Slaves", "Liquor/Wines", "Luxuries", "Narcotics", "Computers",
"Machinery", "Alloys", "Firearms", "Furs", "Minerals", "Gold", "Platinum", "Gem-Stones", "Alien Items"]
ubyte[17] current_quantity = 0
uword[17] current_price = 0
sub init(ubyte fluct) {
; Prices and availabilities are influenced by the planet4's economy type
; (0-7) and a random "fluctuation" byte that was kept within the saved
; commander position to keep the market4 prices constant over gamesaves.
; Availabilities must be saved with the game since the player alters them
; by buying (and selling(?))
;
; Almost all operations are one byte only and overflow "errors" are
; extremely frequent and exploited.
;
; Trade Item prices are held internally in a single byte=true value/4.
; The decimal point in prices is introduced only when printing them.
; Internally, all prices are integers.
; The player's cash is held in four bytes.
ubyte ci
for ci in 0 to len(names)-1 {
word product
byte changing
product = planet4.economy as word * gradients[ci]
changing = fluct & maskbytes[ci] as byte
ubyte q = (basequants[ci] as word + changing - product) as ubyte
if q & $80
q = 0 ; clip to positive 8-bit
current_quantity[ci] = q & $3f
q = (baseprices[ci] + changing + product) as ubyte
current_price[ci] = q * $0004
}
current_quantity[16] = 0 ; force nonavailability of Alien Items
}
sub display() {
ubyte ci
txt.chrout('\n')
planet4.print_name_uppercase()
txt.print(" trade market4:\n COMMODITY / PRICE / AVAIL / IN HOLD\n")
for ci in 0 to len(names)-1 {
util4.print_right(13, names[ci])
txt.print(" ")
util4.print_10s(current_price[ci])
txt.print(" ")
txt.print_ub(current_quantity[ci])
when units[ci] {
0 -> txt.chrout('t')
1 -> txt.print("kg")
2 -> txt.chrout('g')
}
txt.print(" ")
txt.print_ub(ship4.cargohold[ci])
txt.chrout('\n')
}
}
sub match(uword nameptr) -> ubyte {
ubyte ci
for ci in 0 to len(names)-1 {
if util4.prefix_matches(nameptr, names[ci])
return ci
}
return 255
}
}
galaxy4 {
const uword GALSIZE = 256
const uword base0 = $5A4A ; seeds for the first galaxy4
const uword base1 = $0248
const uword base2 = $B753
str pn_pairs = "..lexegezacebisousesarmaindirea.eratenberalavetiedorquanteisrion"
ubyte number
uword[3] seed
sub init(ubyte galaxy4num) {
number = 1
planet4.number = 255
seed = [base0, base1, base2]
repeat galaxy4num-1 {
nextgalaxy4()
}
}
sub nextgalaxy4() {
seed = [twist(seed[0]), twist(seed[1]), twist(seed[2])]
number++
if number==9
number = 1
}
sub travel_to(ubyte galaxy4num, ubyte system) {
init(galaxy4num)
generate_next_planet4() ; always at least planet4 0 (separate to avoid repeat ubyte overflow)
repeat system {
generate_next_planet4()
}
planet4.name = make_current_planet4_name()
init_market4_for_planet4()
}
sub init_market4_for_planet4() {
market4.init(lsb(seed[0])+msb(seed[2]))
}
sub search_closest_planet4(uword nameptr) -> ubyte {
ubyte x = planet4.x
ubyte y = planet4.y
ubyte current_planet4_num = planet4.number
init(number)
ubyte found = false
ubyte current_closest_pi
ubyte current_distance = 127
ubyte pi
for pi in 0 to 255 {
generate_next_planet4()
planet4.name = make_current_planet4_name()
if util4.prefix_matches(nameptr, planet4.name) {
ubyte distance = planet4.distance(x, y)
if distance < current_distance {
current_distance = distance
current_closest_pi = pi
found = true
}
}
}
if found
travel_to(number, current_closest_pi)
else
travel_to(number, current_planet4_num)
return found
}
sub local_area() {
ubyte current_planet4 = planet4.number
ubyte px = planet4.x
ubyte py = planet4.y
ubyte pn = 0
init(number)
txt.print("\nGalaxy #")
txt.print_ub(number)
txt.print(" - systems in vicinity:\n")
do {
generate_next_planet4()
ubyte distance = planet4.distance(px, py)
if distance <= ship4.Max_fuel {
if distance <= ship4.fuel
txt.chrout('*')
else
txt.chrout('-')
txt.chrout(' ')
planet4.name = make_current_planet4_name()
planet4.display(true)
txt.print(" (")
util4.print_10s(distance)
txt.print(" LY)\n")
}
pn++
} until pn==0
travel_to(number, current_planet4)
}
ubyte pn_pair1
ubyte pn_pair2
ubyte pn_pair3
ubyte pn_pair4
ubyte longname
sub generate_next_planet4() {
determine_planet4_properties()
longname = lsb(seed[0]) & 64
; Always four iterations of random number
pn_pair1 = (msb(seed[2]) & 31) * 2
tweakseed()
pn_pair2 = (msb(seed[2]) & 31) * 2
tweakseed()
pn_pair3 = (msb(seed[2]) & 31) * 2
tweakseed()
pn_pair4 = (msb(seed[2]) & 31) * 2
tweakseed()
}
sub make_current_planet4_name() -> str {
ubyte ni = 0
str name = " " ; max 8
if pn_pairs[pn_pair1] != '.' {
name[ni] = pn_pairs[pn_pair1]
ni++
}
if pn_pairs[pn_pair1+1] != '.' {
name[ni] = pn_pairs[pn_pair1+1]
ni++
}
if pn_pairs[pn_pair2] != '.' {
name[ni] = pn_pairs[pn_pair2]
ni++
}
if pn_pairs[pn_pair2+1] != '.' {
name[ni] = pn_pairs[pn_pair2+1]
ni++
}
if pn_pairs[pn_pair3] != '.' {
name[ni] = pn_pairs[pn_pair3]
ni++
}
if pn_pairs[pn_pair3+1] != '.' {
name[ni] = pn_pairs[pn_pair3+1]
ni++
}
if longname {
if pn_pairs[pn_pair4] != '.' {
name[ni] = pn_pairs[pn_pair4]
ni++
}
if pn_pairs[pn_pair4+1] != '.' {
name[ni] = pn_pairs[pn_pair4+1]
ni++
}
}
name[ni] = 0
return name
}
sub determine_planet4_properties() {
; create the planet4's characteristics
planet4.number++
planet4.x = msb(seed[1])
planet4.y = msb(seed[0])
planet4.govtype = lsb(seed[1]) >> 3 & 7 ; bits 3,4 &5 of w1
planet4.economy = msb(seed[0]) & 7 ; bits 8,9 &A of w0
if planet4.govtype <= 1
planet4.economy = (planet4.economy | 2)
planet4.techlevel = (msb(seed[1]) & 3) + (planet4.economy ^ 7)
planet4.techlevel += planet4.govtype >> 1
if planet4.govtype & 1
planet4.techlevel++
planet4.population = 4 * planet4.techlevel + planet4.economy
planet4.population += planet4.govtype + 1
planet4.productivity = ((planet4.economy ^ 7) + 3) * (planet4.govtype + 4)
planet4.productivity *= planet4.population * 8
ubyte seed2_msb = msb(seed[2])
planet4.radius = mkword((seed2_msb & 15) + 11, planet4.x)
planet4.species_is_alien = lsb(seed[2]) & 128 ; bit 7 of w2_lo
if planet4.species_is_alien {
planet4.species_size = (seed2_msb >> 2) & 7 ; bits 2-4 of w2_hi
planet4.species_color = seed2_msb >> 5 ; bits 5-7 of w2_hi
planet4.species_look = (seed2_msb ^ msb(seed[1])) & 7 ;bits 0-2 of (w0_hi EOR w1_hi)
planet4.species_kind = (planet4.species_look + (seed2_msb & 3)) & 7 ;Add bits 0-1 of w2_hi to A from previous step, and take bits 0-2 of the result
}
planet4.goatsoup_seed = [lsb(seed[1]), msb(seed[1]), lsb(seed[2]), seed2_msb]
}
sub tweakseed() {
uword temp = seed[0] + seed[1] + seed[2]
seed[0] = seed[1]
seed[1] = seed[2]
seed[2] = temp
}
sub twist(uword x) -> uword {
ubyte xh = msb(x)
ubyte xl = lsb(x)
rol(xh)
rol(xl)
return mkword(xh, xl)
}
sub debug_seed() {
txt.print("\ngalaxy4 #")
txt.print_ub(number)
txt.print("\ngalaxy4 seed0=")
txt.print_uwhex(galaxy4.seed[0], true)
txt.print("\ngalaxy4 seed1=")
txt.print_uwhex(galaxy4.seed[1], true)
txt.print("\ngalaxy4 seed2=")
txt.print_uwhex(galaxy4.seed[2], true)
txt.chrout('\n')
}
}
planet4 {
%option force_output
str[] species_sizes = ["Large", "Fierce", "Small"]
str[] species_colors = ["Green", "Red", "Yellow", "Blue", "Black", "Harmless"]
str[] species_looks = ["Slimy", "Bug-Eyed", "Horned", "Bony", "Fat", "Furry"]
str[] species_kinds = ["Rodents", "Frogs", "Lizards", "Lobsters", "Birds", "Humanoids", "Felines", "Insects"]
str[] govnames = ["Anarchy", "Feudal", "Multi-gov", "Dictatorship4", "Communist", "Confederacy", "Democracy", "Corporate State"]
str[] econnames = ["Rich Industrial", "Average Industrial", "Poor Industrial", "Mainly Industrial",
"Mainly Agricultural", "Rich Agricultural", "Average Agricultural", "Poor Agricultural"]
str[] words81 = ["fabled", "notable", "well known", "famous", "noted"]
str[] words82 = ["very", "mildly", "most", "reasonably", ""]
str[] words83 = ["ancient", "\x95", "great", "vast", "pink"]
str[] words84 = ["\x9E \x9D plantations", "mountains", "\x9C", "\x94 forests", "oceans"]
str[] words85 = ["shyness", "silliness", "mating traditions", "loathing of \x86", "love for \x86"]
str[] words86 = ["food blenders", "tourists", "poetry", "discos", "\x8E"]
str[] words87 = ["talking tree", "crab", "bat", "lobst", "\xB2"]
str[] words88 = ["beset", "plagued", "ravaged", "cursed", "scourged"]
str[] words89 = ["\x96 civil war", "\x9B \x98 \x99s", "a \x9B disease", "\x96 earthquakes", "\x96 solar activity"]
str[] words8A = ["its \x83 \x84", "the \xB1 \x98 \x99", "its inhabitants' \x9A \x85", "\xA1", "its \x8D \x8E"]
str[] words8B = ["juice", "brandy", "water", "brew", "gargle blasters"]
str[] words8C = ["\xB2", "\xB1 \x99", "\xB1 \xB2", "\xB1 \x9B", "\x9B \xB2"]
str[] words8D = ["fabulous", "exotic", "hoopy", "unusual", "exciting"]
str[] words8E = ["cuisine", "night life", "casinos", "sit coms", " \xA1 "]
str[] words8F = ["\xB0", "The planet4 \xB0", "The world \xB0", "This planet4", "This world"]
str[] words90 = ["n unremarkable", " boring", " dull", " tedious", " revolting"]
str[] words91 = ["planet4", "world", "place", "little planet4", "dump"]
str[] words92 = ["wasp", "moth", "grub", "ant", "\xB2"]
str[] words93 = ["poet", "arts graduate", "yak", "snail", "slug"]
str[] words94 = ["tropical", "dense", "rain", "impenetrable", "exuberant"]
str[] words95 = ["funny", "wierd", "unusual", "strange", "peculiar"]
str[] words96 = ["frequent", "occasional", "unpredictable", "dreadful", "deadly"]
str[] words97 = ["\x82 \x81 for \x8A", "\x82 \x81 for \x8A and \x8A", "\x88 by \x89", "\x82 \x81 for \x8A but \x88 by \x89", "a\x90 \x91"]
str[] words98 = ["\x9B", "mountain", "edible", "tree", "spotted"]
str[] words99 = ["\x9F", "\xA0", "\x87oid", "\x93", "\x92"]
str[] words9A = ["ancient", "exceptional", "eccentric", "ingrained", "\x95"]
str[] words9B = ["killer", "deadly", "evil", "lethal", "vicious"]
str[] words9C = ["parking meters", "dust clouds", "ice bergs", "rock formations", "volcanoes"]
str[] words9D = ["plant", "tulip", "banana", "corn", "\xB2weed"]
str[] words9E = ["\xB2", "\xB1 \xB2", "\xB1 \x9B", "inhabitant", "\xB1 \xB2"]
str[] words9F = ["shrew", "beast", "bison", "snake", "wolf"]
str[] wordsA0 = ["leopard", "cat", "monkey", "goat", "fish"]
str[] wordsA1 = ["\x8C \x8B", "\xB1 \x9F \xA2", "its \x8D \xA0 \xA2", "\xA3 \xA4", "\x8C \x8B"]
str[] wordsA2 = ["meat", "cutlet", "steak", "burgers", "soup"]
str[] wordsA3 = ["ice", "mud", "Zero-G", "vacuum", "\xB1 ultra"]
str[] wordsA4 = ["hockey", "cricket", "karate", "polo", "tennis"]
uword[] wordlists = [
words81, words82, words83, words84, words85, words86, words87, words88,
words89, words8A, words8B, words8C, words8D, words8E, words8F, words90,
words91, words92, words93, words94, words95, words96, words97, words98,
words99, words9A, words9B, words9C, words9D, words9E, words9F, wordsA0,
wordsA1, wordsA2, wordsA3, wordsA4]
str pairs0 = "abouseitiletstonlonuthnoallexegezacebisousesarmaindirea.eratenbe"
ubyte[4] goatsoup_rnd = [0, 0, 0, 0]
ubyte[4] goatsoup_seed = [0, 0, 0, 0]
str name = " " ; 8 max
ubyte number ; starts at 0 in new galaxy4, then increases by 1 for each generated planet4
ubyte x
ubyte y
ubyte economy
ubyte govtype
ubyte techlevel
ubyte population
uword productivity
uword radius
ubyte species_is_alien ; otherwise "Human Colonials"
ubyte species_size
ubyte species_color
ubyte species_look
ubyte species_kind
sub set_seed(uword s1, uword s2) {
goatsoup_seed[0] = lsb(s1)
goatsoup_seed[1] = msb(s1)
goatsoup_seed[2] = lsb(s2)
goatsoup_seed[3] = msb(s2)
reset_rnd()
}
sub reset_rnd() {
goatsoup_rnd[0] = goatsoup_seed[0]
goatsoup_rnd[1] = goatsoup_seed[1]
goatsoup_rnd[2] = goatsoup_seed[2]
goatsoup_rnd[3] = goatsoup_seed[3]
}
sub random_name() -> str {
ubyte ii
str name = " " ; 8 chars max
ubyte nx = 0
for ii in 0 to goatsoup_rnd_number() & 3 {
ubyte x = goatsoup_rnd_number() & $3e
if pairs0[x] != '.' {
name[nx] = pairs0[x]
nx++
}
x++
if pairs0[x] != '.' {
name[nx] = pairs0[x]
nx++
}
}
name[nx] = 0
name[0] |= 32 ; uppercase first letter
return name
}
sub goatsoup_rnd_number() -> ubyte {
ubyte x = goatsoup_rnd[0] * 2
uword a = x as uword + goatsoup_rnd[2]
if goatsoup_rnd[0] > 127
a ++
goatsoup_rnd[0] = lsb(a)
goatsoup_rnd[2] = x
x = goatsoup_rnd[1]
ubyte ac = x + goatsoup_rnd[3] + msb(a)
goatsoup_rnd[1] = ac
goatsoup_rnd[3] = x
return ac
}
sub distance(ubyte px, ubyte py) -> ubyte {
uword ax
uword ay
if px>x
ax=px-x
else
ax=x-px
if py>y
ay=py-y
else
ay=y-py
ay /= 2
ubyte d = sqrt16(ax*ax + ay*ay)
if d>63
return 255
return d*4
}
sub soup() -> str {
str planet4_result = " " * 160
uword[6] source_stack
ubyte stack_ptr = 0
str start_source = "\x8F is \x97."
uword source_ptr = &start_source
uword result_ptr = &planet4_result
reset_rnd()
recursive_soup()
return planet4_result
sub recursive_soup() {
repeat {
ubyte c = @(source_ptr)
source_ptr++
if c == $00 {
@(result_ptr) = 0
return
}
else if c <= $80 {
@(result_ptr) = c
result_ptr++
}
else {
if c <= $a4 {
ubyte rnr = goatsoup_rnd_number()
ubyte wordNr = (rnr >= $33) + (rnr >= $66) + (rnr >= $99) + (rnr >= $CC)
source_stack[stack_ptr] = source_ptr
stack_ptr++
source_ptr = getword(c, wordNr)
recursive_soup() ; RECURSIVE CALL - ignore the warning message from the compiler; we don't use local variables or parameters so we're safe in this case
stack_ptr--
source_ptr = source_stack[stack_ptr]
} else {
if c == $b0 {
@(result_ptr) = name[0] | 32
result_ptr++
concat_string(&name + 1)
}
else if c == $b1 {
@(result_ptr) = name[0] | 32
result_ptr++
ubyte ni
for ni in 1 to len(name) {
ubyte cc = name[ni]
if cc=='e' or cc=='o' or cc==0
break
else {
@(result_ptr) = cc
result_ptr++
}
}
@(result_ptr) = 'i'
result_ptr++
@(result_ptr) = 'a'
result_ptr++
@(result_ptr) = 'n'
result_ptr++
}
else if c == $b2 {
concat_string(random_name())
}
else {
@(result_ptr) = c
result_ptr++
}
}
}
}
}
sub concat_string(uword str_ptr) {
repeat {
ubyte c = @(str_ptr)
if c==0
break
else {
@(result_ptr) = c
str_ptr++
result_ptr++
}
}
}
}
sub display(ubyte compressed) {
if compressed {
print_name_uppercase()
txt.print(" TL:")
txt.print_ub(techlevel+1)
txt.chrout(' ')
txt.print(econnames[economy])
txt.chrout(' ')
txt.print(govnames[govtype])
} else {
txt.print("\n\nSystem: ")
print_name_uppercase()
txt.print("\nPosition: ")
txt.print_ub(x)
txt.chrout('\'')
txt.print_ub(y)
txt.chrout(' ')
txt.chrout('#')
txt.print_ub(number)
txt.print("\nEconomy: ")
txt.print(econnames[economy])
txt.print("\nGovernment: ")
txt.print(govnames[govtype])
txt.print("\nTech Level: ")
txt.print_ub(techlevel+1)
txt.print("\nTurnover: ")
txt.print_uw(productivity)
txt.print("\nRadius: ")
txt.print_uw(radius)
txt.print("\nPopulation: ")
txt.print_ub(population >> 3)
txt.print(" Billion\nSpecies: ")
if species_is_alien {
if species_size < len(species_sizes) {
txt.print(species_sizes[species_size])
txt.chrout(' ')
}
if species_color < len(species_colors) {
txt.print(species_colors[species_color])
txt.chrout(' ')
}
if species_look < len(species_looks) {
txt.print(species_looks[species_look])
txt.chrout(' ')
}
if species_kind < len(species_kinds) {
txt.print(species_kinds[species_kind])
}
} else {
txt.print("Human Colonials")
}
txt.chrout('\n')
txt.print(soup())
txt.chrout('\n')
}
}
sub print_name_uppercase() {
ubyte c
for c in name
txt.chrout(c | 32)
}
asmsub getword(ubyte list @A, ubyte wordidx @Y) -> uword @AY {
%asm {{
sty P8ZP_SCRATCH_REG
sec
sbc #$81
asl a
tay
lda wordlists,y
sta P8ZP_SCRATCH_W1
lda wordlists+1,y
sta P8ZP_SCRATCH_W1+1
lda P8ZP_SCRATCH_REG
asl a
tay
lda (P8ZP_SCRATCH_W1),y
pha
iny
lda (P8ZP_SCRATCH_W1),y
tay
pla
rts
}}
}
}
util4 {
sub prefix_matches(uword prefixptr, uword stringptr) -> ubyte {
repeat {
ubyte pc = @(prefixptr)
ubyte sc = @(stringptr)
if pc == 0
return true
; to lowercase for case insensitive compare:
pc &= 127
sc &= 127
if pc != sc
return false
prefixptr++
stringptr++
}
return false
}
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sub print_right(ubyte width, uword st) {
repeat width - string.length(st) {
2020-12-31 00:09:31 +00:00
txt.chrout(' ')
}
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txt.print(st)
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}
asmsub print_10s(uword value @AY) clobbers(A, X, Y) {
%asm {{
jsr conv.uword2decimal
lda conv.uword2decimal.decTenThousands
ldy #0 ; have we started printing?
cmp #'0'
beq +
jsr c64.CHROUT
iny
+ lda conv.uword2decimal.decThousands
cmp #'0'
bne +
cpy #0
beq ++
+ jsr c64.CHROUT
iny
+ lda conv.uword2decimal.decHundreds
cmp #'0'
bne +
cpy #0
beq ++
+ jsr c64.CHROUT
iny
+ lda conv.uword2decimal.decTens
jsr c64.CHROUT
lda #'.'
jsr c64.CHROUT
lda conv.uword2decimal.decOnes
jsr c64.CHROUT
rts
}}
}
}
