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fn populate() [Int] {
# Initialize life vector
var life: [Int] = [0];
vpopi(life);
# Fill the vector with random values
var i: Int = 0;
while i < 57600 {
var n: Int = randGen(0,1);
vpushi(life, n);
i = i+1;
}
return life;
}
fn coord(x: Int, y: Int) Int {
var res: Int = -1;
# Calculate index based on coordinates
if x >= 0 && y >= 0 {
res = y*240+ x;
}
# if coordinate is invalid, return -1
return res;
}
fn cval(x: Int, y: Int, life: [Int]) Int {
# Check to make sure index exists before returning
var res: Int = 0;
var c: Int = coord(x, y);
if c >= 0 {
res = vgeti(life, c);
}
return res;
}
fn update(life: [Int], new: [Int]) {
# Iterate through life
var x: Int = 0;
while x < 64 {
var y: Int = 0;
while y < 240 {
# Calculate total score around selected cell
var total: Int =
cval(x-1, y-1, life) + # Top Left
cval(x-1, y , life) +
cval(x-1, y+1, life) +
cval(x , y-1, life) +
cval(x , y+1, life) +
cval(x+1, y-1, life) +
cval(x+1, y , life) +
cval(x+1, y+1, life);
# Apply game of life rules
var idx: Int = coord(x, y);
if cval(x, y, life) == 1 {
if total < 2 || total > 3 {
vseti(new, idx, 0);
} else {
vseti(new, idx, 1);
}
} else {
if total == 3 {
vseti(new, idx, 1);
} else {
vseti(new, idx, 0);
}
}
y = y+1;
}
x = x+1;
}
}
fn display(life: [Int]) {
# Iterate through life
for x in 3..62 {
for y in 0..240 {
termpos(x-3, y);
if cval(x-3, y, life) == 1 {
print("█");
} else {
print(" ");
}
}
}
}
fn main() Int {
# Populate
var life: [Int] = populate();
display(life);
curshide();
# Play forever
while true {
var new: [Int] = populate();
update(life, new);
display(new);
life = new;
wait(100);
}
return 0;
}
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