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setup random world

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This commit is contained in:
Fabien Freling 2021-05-28 19:51:05 +02:00
parent 3b3cb72dc0
commit ac56eed3a2
2 changed files with 114 additions and 38 deletions
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19
in_one_weekend/src/world.zig
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@ -1,15 +1,28 @@
const std = @import("std");
const ArrayList = std.ArrayList;
const Sphere = @import("sphere.zig").Sphere;
const HitRecord = @import("hittable.zig").HitRecord;
const Ray = @import("ray.zig").Ray;
pub const World = struct {
spheres: []const Sphere,
spheres: ArrayList(Sphere),
pub fn hit(self: World, ray: Ray, t_min: f32, t_max: f32) ?HitRecord {
pub fn init() World {
return World {
.spheres = ArrayList(Sphere).init(std.testing.allocator)
};
}
pub fn deinit(self: *World) void {
self.spheres.deinit();
}
pub fn hit(self: *const World, ray: Ray, t_min: f32, t_max: f32) ?HitRecord {
var hitRecord: ?HitRecord = null;
var closest = t_max;
for (self.spheres) |sphere| {
for (self.spheres.items) |sphere| {
if (sphere.hit(ray, t_min, closest)) |localHit| {
closest = localHit.t;
hitRecord = localHit;