add new model and "optimizations"

res/content/base/entities/drop.json

@@ -1,3 +1,3 @@
 {
-    "hitbox": [0.2, 0.15, 0.2]
+    "hitbox": [0.2, 0.2, 0.2]
 }

res/content/base/models/item.mtl

@@ -0,0 +1,12 @@
+# Blender MTL File: 'None'
+# Material Count: 1
+
+newmtl Material
+Ns 96.078431
+Ka 1.000000 1.000000 1.000000
+Kd 0.640000 0.640000 0.640000
+Ks 0.500000 0.500000 0.500000
+Ke 0.000000 0.000000 0.000000
+Ni 1.000000
+d 1.000000
+illum 2

res/content/base/models/item.obj

@@ -0,0 +1,62 @@
+# Blender v2.79 (sub 0) OBJ File: ''
+# www.blender.org
+mtllib item.mtl
+o Cube
+v -0.282501 -0.015663 -0.282501
+v -0.282501 -0.015663 0.282500
+v 0.282500 -0.015663 0.282501
+v 0.282501 -0.015663 -0.282500
+v 0.282501 0.021634 -0.282500
+v 0.282500 0.021634 0.282501
+v -0.282501 0.021634 0.282500
+v -0.282501 0.021634 -0.282501
+v -0.282501 0.021634 -0.282501
+v -0.282501 0.021634 0.282500
+v 0.282500 0.021634 0.282501
+v 0.282501 0.021634 -0.282500
+v 0.282501 -0.015663 -0.282500
+v 0.282500 -0.015663 0.282501
+v -0.282501 -0.015663 0.282500
+v -0.282501 -0.015663 -0.282501
+v 0.282501 0.002840 -0.282500
+v 0.282500 0.002840 0.282501
+v -0.282501 0.002840 0.282500
+v -0.282501 0.002840 -0.282501
+v -0.282501 0.002840 -0.282501
+v -0.282501 0.002840 0.282500
+v 0.282500 0.002840 0.282501
+v 0.282501 0.002840 -0.282500
+vt 0.000000 0.000000
+vt 1.000000 0.000000
+vt 1.000000 1.000000
+vt 0.000000 1.000000
+vt 0.000000 0.000000
+vt 1.000000 0.000000
+vt 1.000000 1.000000
+vt 0.000000 1.000000
+vt 0.000000 0.000000
+vt 0.000000 1.000000
+vt 1.000000 1.000000
+vt 1.000000 0.000000
+vt 0.000000 0.000000
+vt 0.000000 1.000000
+vt 1.000000 1.000000
+vt 1.000000 0.000000
+vt 0.000000 0.000000
+vt 1.000000 0.000000
+vt 1.000000 1.000000
+vt 0.000000 1.000000
+vt 0.000000 0.000000
+vt 0.000000 1.000000
+vt 1.000000 1.000000
+vt 1.000000 0.000000
+vn 0.0000 1.0000 0.0000
+vn 0.0000 -1.0000 0.0000
+usemtl items/bazalt_breaker
+s off
+f 4/1/1 1/2/1 2/3/1 3/4/1
+f 5/5/1 8/6/1 7/7/1 6/8/1
+f 12/9/2 11/10/2 10/11/2 9/12/2
+f 13/13/2 14/14/2 15/15/2 16/16/2
+f 17/17/1 20/18/1 19/19/1 18/20/1
+f 24/21/2 23/22/2 22/23/2 21/24/2

res/content/base/preload.json

@@ -4,6 +4,7 @@
         "blocks/door_close"
     ],
     "models": [
-        "cube"
+        "cube",
+        "item"
     ]
 }

res/content/base/scripts/components/drop.lua

@@ -22,7 +22,7 @@ end
 
 function on_update()
     if inair then
-        tsf:set_rot(mat4.rotate(tsf:get_rot(), {0, 1, 0}, math.random()*12))
+        tsf:set_rot(mat4.rotate(tsf:get_rot(), {0, 1, 0}, math.random()*4))
-        tsf:set_rot(mat4.rotate(tsf:get_rot(), {0, 0, 1}, math.random()*12))
+        tsf:set_rot(mat4.rotate(tsf:get_rot(), {0, 0, 1}, math.random()*4))
     end
 end

src/objects/Entities.cpp

@@ -78,15 +78,20 @@ void Entities::clean() {
     }
 }
 
-void Entities::updatePhysics(float delta){
+void Entities::preparePhysics() {
+    static uint64_t frameid = 0;
+    frameid++;
     auto view = registry.view<EntityId, Transform, Rigidbody>();
     auto physics = level->physics.get();
-    {
     std::vector<Trigger*> triggers;
     for (auto [entity, eid, transform, rigidbody] : view.each()) {
         if (!rigidbody.enabled) {
             continue;
         }
+        // TODO: temporary optimization until threaded solution
+        if ((eid.uid + frameid) % 3 != 0) {
+            continue;
+        }
         for (size_t i = 0; i < rigidbody.triggers.size(); i++) {
             auto& trigger = rigidbody.triggers[i];
             for (auto oid : trigger.prevEntered) {
@@ -102,7 +107,13 @@ void Entities::updatePhysics(float delta){
         }
     }
     physics->setTriggers(std::move(triggers));
-    }
+}
+
+void Entities::updatePhysics(float delta) {
+    preparePhysics();
+
+    auto view = registry.view<EntityId, Transform, Rigidbody>();
+    auto physics = level->physics.get();
     for (auto [entity, eid, transform, rigidbody] : view.each()) {
         if (!rigidbody.enabled) {
             continue;
@@ -110,11 +121,15 @@ void Entities::updatePhysics(float delta){
         auto& hitbox = rigidbody.hitbox;
         auto prevVel = hitbox.velocity;
         bool grounded = hitbox.grounded;
+
+        float vel = glm::length(prevVel);
+        int substeps = static_cast<int>(delta * vel * 20);
+        substeps = std::min(100, std::max(2, substeps));
         physics->step(
             level->chunks.get(),
             &hitbox,
             delta,
-            10,
+            substeps,
             false,
             1.0f,
             true,
@@ -139,7 +154,7 @@ void Entities::update() {
     }
 }
 
-void Entities::renderDebug(LineBatch& batch, Frustum& frustum) {
+void Entities::renderDebug(LineBatch& batch, const Frustum& frustum) {
     batch.lineWidth(1.0f);
     auto view = registry.view<Transform, Rigidbody>();
     for (auto [entity, transform, rigidbody] : view.each()) {
@@ -157,9 +172,12 @@ void Entities::renderDebug(LineBatch& batch, Frustum& frustum) {
     }
 }
 
-void Entities::render(Assets* assets, ModelBatch& batch, Frustum& frustum) {
+void Entities::render(Assets* assets, ModelBatch& batch, const Frustum& frustum) {
     auto view = registry.view<Transform>();
     auto model = assets->get<model::Model>("cube");
+    if (model == nullptr) {
+        return;
+    }
     for (auto [entity, transform] : view.each()) {
         const auto& pos = transform.pos;
         const auto& size = transform.size;

src/objects/Entities.hpp

@@ -104,6 +104,8 @@ class Entities {
     Level* level;
     std::unordered_map<entityid_t, entt::entity> entities;
     entityid_t nextID = 1;
+    
+    void preparePhysics();
 public:
     Entities(Level* level);
 
@@ -111,8 +113,8 @@ public:
     void updatePhysics(float delta);
     void update();
 
-    void renderDebug(LineBatch& batch, Frustum& frustum);
+    void renderDebug(LineBatch& batch, const Frustum& frustum);
-    void render(Assets* assets, ModelBatch& batch, Frustum& frustum);
+    void render(Assets* assets, ModelBatch& batch, const Frustum& frustum);
 
     entityid_t spawn(EntityDef& def, glm::vec3 pos);