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all: use new mach.Entity.Mod query API

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2024-05-07 17:49:24 -07:00 • committed by Stephen Gutekanst
parent 541ce9e7c0
commit bd655828e3
13 changed files with 213 additions and 265 deletions
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32
examples/custom-renderer/App.zig
View file

@ -157,27 +157,29 @@ fn tick(
// Query all the entities that have the .follower tag indicating they should follow the player.
// TODO(important): better querying API
var archetypes_iter = core.__entities.queryDeprecated(.{ .all = &.{
.{ .app = &.{.follower} },
} });
while (archetypes_iter.next()) |archetype| {
// Iterate the ID and position of each entity
const ids = archetype.slice(.entities, .id);
const positions = archetype.slice(.renderer, .position);
for (ids, positions) |id, position| {
// Iterate the ID and position of each follower entity
var q = try entities.query(.{
.ids = mach.Entities.Mod.read(.id),
.followers = Mod.read(.follower),
.positions = Renderer.Mod.read(.position),
});
while (q.next()) |v| {
for (v.ids, v.positions) |id, position| {
// Nested query to find all the other follower entities that we should move away from.
// We will avoid all other follower entities if we're too close to them.
// This is not very efficient, but it works!
const close_dist = 1.0 / 15.0;
var avoidance = Vec3.splat(0);
var avoidance_div: f32 = 1.0;
var archetypes_iter_2 = core.__entities.queryDeprecated(.{ .all = &.{
.{ .app = &.{.follower} },
} });
while (archetypes_iter_2.next()) |archetype_2| {
const other_ids = archetype_2.slice(.entities, .id);
const other_positions = archetype_2.slice(.renderer, .position);
for (other_ids, other_positions) |other_id, other_position| {
var q2 = try entities.query(.{
.ids = mach.Entities.Mod.read(.id),
.followers = Mod.read(.follower),
.positions = Renderer.Mod.read(.position),
});
while (q2.next()) |v2| {
for (v2.ids, v2.positions) |other_id, other_position| {
if (id == other_id) continue;
if (position.dist(&other_position) < close_dist) {
avoidance = avoidance.sub(&position.dir(&other_position, 0.0000001));

17
examples/custom-renderer/Renderer.zig
View file

@ -124,6 +124,7 @@ fn deinit(
}
fn renderFrame(
entities: *mach.Entities.Mod,
core: *mach.Core.Mod,
renderer: *Mod,
) !void {
@ -138,17 +139,13 @@ fn renderFrame(
defer encoder.release();
// Update uniform buffer
var archetypes_iter = core.__entities.queryDeprecated(.{ .all = &.{
.{ .renderer = &.{ .position, .scale } },
} });
var num_entities: usize = 0;
while (archetypes_iter.next()) |archetype| {
const ids = archetype.slice(.entities, .id);
const positions = archetype.slice(.renderer, .position);
const scales = archetype.slice(.renderer, .scale);
for (ids, positions, scales) |id, position, scale| {
_ = id;
var q = try entities.query(.{
.positions = Mod.read(.position),
.scales = Mod.read(.scale),
});
while (q.next()) |v| {
for (v.positions, v.scales) |position, scale| {
const ubo = UniformBufferObject{
.offset = position,
.scale = scale,