AstralTransRocketries/Cubyz
1
0
Fork 0
mirror of https://github.com/PixelGuys/Cubyz.git synced 2025-08-03 11:17:05 -04:00
Code Issues Packages Projects Releases Wiki Activity

Make ores work

Browse Source
This commit is contained in:
codemob-dev 2025-07-28 17:09:32 -04:00
parent b154103c6b
commit 436d792544
1 changed files with 15 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
src/models.zig
View File

@ -202,7 +202,7 @@ pub const Model = struct {
return modelIndex;
}
fn ray_intersects_triangle(ray_origin: Vec3f, ray_direction: Vec3f, triangle: *const [3]Vec3f) bool {
fn rayIntersectsTriangle(ray_origin: Vec3f, ray_direction: Vec3f, triangle: *const [3]Vec3f) bool {
const epsilon = 1e-8;
const v0 = triangle[0];
const v1 = triangle[1];
@ -248,26 +248,29 @@ pub const Model = struct {
for(Neighbor.iterable)|neighbor| {
const dir: Vec3f = @floatFromInt(neighbor.relPos());
var intersections: usize = 0;
var signed_intersections: i32 = 0;
for(modelQuads) |quad| {
const triangle1: [3]Vec3f = .{
@as(Vec3f, quad.corners[0]),
@as(Vec3f, quad.corners[1]),
@as(Vec3f, quad.corners[2]),
quad.cornerVec(0),
quad.cornerVec(1),
quad.cornerVec(2),
};
const triangle2: [3]Vec3f = .{
@as(Vec3f, quad.corners[1]),
@as(Vec3f, quad.corners[2]),
@as(Vec3f, quad.corners[3]),
quad.cornerVec(1),
quad.cornerVec(2),
quad.cornerVec(3),
};
if(ray_intersects_triangle(pos, dir, &triangle1) or ray_intersects_triangle(pos, dir, &triangle2)) {
intersections += 1;
if(rayIntersectsTriangle(pos, dir, &triangle1) or rayIntersectsTriangle(pos, dir, &triangle2)) {
if(vec.dot(dir, quad.normalVec()) > 0) {
signed_intersections -= 1;
} else {
signed_intersections += 1;
}
}
}
if(intersections%2 == 1) {
if(signed_intersections != 0) {
grid[x][y][z] = true;
break;
}