From 3bb071ae7b630307541f425d61e2a099fc272063 Mon Sep 17 00:00:00 2001
From: karl <karl.bittner@hexaquo.at>
Date: Sat, 2 Jan 2021 16:14:59 +0100
Subject: [PATCH] Add prototype collision checking

It outputs values, but they don't seem quite correct...
---
 ECS/Systems/CollisionSystem.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/ECS/Systems/CollisionSystem.h b/ECS/Systems/CollisionSystem.h
index d90f903..f3713c1 100644
--- a/ECS/Systems/CollisionSystem.h
+++ b/ECS/Systems/CollisionSystem.h
@@ -3,6 +3,7 @@
 #include "../../Util/kdtree.h"
 #include "../Components/LODObjMesh.h"
 #include "../Components/Mesh.h"
+#include "../Components/MouseLook.h"
 #include "../Components/ObjMesh.h"
 #include "../Components/Transform.h"
 #include "../ECS.h"
@@ -71,6 +72,25 @@ class CollisionSystem : public EntitySystem {
         std::cout << kdtree->to_string() << std::endl;
     }
 
+    void tick(World *pWorld, float deltaTime) override {
+        pWorld->each<Transform, MouseLook>([&](Entity *ent, ComponentHandle<Transform> transform,
+                                               ComponentHandle<MouseLook> mouse_look) {
+            glm::vec3 origin_glm = transform->get_origin();
+            Vector origin = Vector(origin_glm.x, origin_glm.y, origin_glm.z);
+
+            // TODO: Get mouse look direction
+            Ray ray(origin, Vector(0, 0, -1));
+
+            Triangle *result = kdtree->intersect_ray(ray);
+
+            if (result) {
+                std::cout << result->p1[0] << ", " << result->p1[2] << ", " << result->p1[3]
+                          << std::endl;
+            }
+            // TODO: Also output visually
+        });
+    }
+
     void configure(World *pWorld) override { myWorld = pWorld; }
 
     World *myWorld;