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Merge branch 'heatray'

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This commit is contained in:
Dave Gauer 2022-07-31 11:35:01 -04:00
commit 18c761d85d
2 changed files with 13 additions and 8 deletions
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15
exercises/047_methods.zig
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@ -55,10 +55,15 @@ const Alien = struct {
.health = strength * 5, .health = strength * 5,
}; };
} }
};
// Your trusty weapon. Zap those aliens!
const HeatRay = struct {
damage: u8,
// We love this method: // We love this method:
pub fn zap(self: *Alien, damage: u8) void { pub fn zap(self: *HeatRay, alien: *Alien) void {
self.health -= if (damage >= self.health) self.health else damage; alien.health -= if (self.damage >= alien.health) alien.health else self.damage;
} }
}; };
@ -74,7 +79,7 @@ pub fn main() void {
}; };
var aliens_alive = aliens.len; var aliens_alive = aliens.len;
var heat_ray_strength: u8 = 7; // We've been given a heat ray weapon. var heat_ray = HeatRay{ .damage = 7 }; // We've been given a heat ray weapon.
// We'll keep checking to see if we've killed all the aliens yet. // We'll keep checking to see if we've killed all the aliens yet.
while (aliens_alive > 0) { while (aliens_alive > 0) {
@ -83,8 +88,8 @@ pub fn main() void {
// Loop through every alien... // Loop through every alien...
for (aliens) |*alien| { for (aliens) |*alien| {
// *** Zap the Alien Here! *** // *** Zap the alien with the heat ray here! ***
???.zap(heat_ray_strength); ???.zap(???);
// If the alien's health is still above 0, it's still alive. // If the alien's health is still above 0, it's still alive.
if (alien.health > 0) aliens_alive += 1; if (alien.health > 0) aliens_alive += 1;

6
patches/patches/047_methods.patch
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@ -1,4 +1,4 @@
87c87 92c92
< ???.zap(heat_ray_strength); < ???.zap(???);
--- ---
> alien.zap(heat_ray_strength); > heat_ray.zap(alien);