add debug hitboxes render

res/content/base/scripts/hud.lua

@@ -1,8 +1,12 @@
+local DROP_FORCE = 8
+local DROP_INIT_VEL = {0, 3, 0}
+
 function on_hud_open()
     input.add_callback("player.drop", function ()
         local pid = hud.get_player()
         local pvel = {player.get_vel(pid)}
         local eid = entity.test()
-        entity.set_vel(eid, vec3.add(vec3.mul(player.get_dir(pid), {8, 8, 8}), vec3.add(pvel, {0, 3, 0})))
+        local throw_force = vec3.mul(player.get_dir(pid), DROP_FORCE)
+        entity.set_vel(eid, vec3.add(throw_force, vec3.add(pvel, DROP_INIT_VEL)))
     end)
 end

src/graphics/render/WorldRenderer.cpp

@@ -215,8 +215,6 @@ void WorldRenderer::renderBlockSelection(Camera* camera, Shader* linesShader) {
         ? block->rt.hitboxes[selection.vox.state.rotation]
         : block->hitboxes;
 
-    linesShader->use();
-    linesShader->uniformMatrix("u_projview", camera->getProjView());
     lineBatch->lineWidth(2.0f);
     for (auto& hitbox: hitboxes) {
         const glm::vec3 center = glm::vec3(pos) + hitbox.center();
@@ -226,6 +224,17 @@ void WorldRenderer::renderBlockSelection(Camera* camera, Shader* linesShader) {
             lineBatch->line(point, point+norm*0.5f, glm::vec4(1.0f, 0.0f, 1.0f, 1.0f));
         }
     }
+}
+
+void WorldRenderer::renderLines(Camera* camera, Shader* linesShader) {
+    linesShader->use();
+    linesShader->uniformMatrix("u_projview", camera->getProjView());
+    if (player->selection.vox.id != BLOCK_VOID) {
+        renderBlockSelection(camera, linesShader);
+    }
+    if (player->debug) {
+        level->entities->renderDebug(*lineBatch);
+    }
     lineBatch->render();
 }
 
@@ -313,9 +322,9 @@ void WorldRenderer::draw(
             ctx.setDepthTest(true);
             ctx.setCullFace(true);
             renderLevel(ctx, camera, settings);
-            // Selected block
-            if (player->selection.vox.id != BLOCK_VOID && hudVisible){
-                renderBlockSelection(camera, linesShader);
+            // Debug lines
+            if (hudVisible){
+                renderLines(camera, linesShader);
             }
         }
 

src/graphics/render/WorldRenderer.hpp

@@ -48,6 +48,8 @@ class WorldRenderer {
     /// @param camera active camera
     /// @param linesShader shader used
     void renderBlockSelection(Camera* camera, Shader* linesShader);
+    
+    void renderLines(Camera* camera, Shader* linesShader);
 
     /// @brief Render all debug lines (chunks borders, coord system guides)
     /// @param context graphics context

src/objects/Entities.cpp

@@ -5,6 +5,7 @@
 #include "../physics/Hitbox.hpp"
 #include "../physics/PhysicsSolver.hpp"
 #include "../graphics/render/ModelBatch.hpp"
+#include "../graphics/core/LineBatch.hpp"
 #include "../graphics/core/Model.hpp"
 #include "../maths/FrustumCulling.hpp"
 
@@ -54,6 +55,14 @@ void Entities::updatePhysics(float delta){
     }
 }
 
+void Entities::renderDebug(LineBatch& batch) {
+    batch.lineWidth(1.0f);
+    auto view = registry.view<Transform, Hitbox>();
+    for (auto [entity, transform, hitbox] : view.each()) {
+        batch.box(hitbox.position, hitbox.halfsize * 2.0f, glm::vec4(1.0f));
+    }
+}
+
 void Entities::render(Assets* assets, ModelBatch& batch, Frustum& frustum) {
     auto view = registry.view<Transform>();
     auto model = assets->get<model::Model>("cube");

src/objects/Entities.hpp

@@ -24,6 +24,7 @@ struct Transform {
 
 class Level;
 class Assets;
+class LineBatch;
 class ModelBatch;
 class Frustum;
 class Rig;
@@ -60,6 +61,8 @@ class Entities {
 public:
     Entities(Level* level);
     void updatePhysics(float delta);
+
+    void renderDebug(LineBatch& batch);
     void render(Assets* assets, ModelBatch& batch, Frustum& frustum);
 
     entityid_t drop(glm::vec3 pos);