[DEV] better rayscale and add callback on debug display

ege/Ray.cpp

@@ -9,6 +9,9 @@
 #include <ege/Ray.h>
 #include <ege/debug.h>
 
+#include <BulletDynamics/Dynamics/btDynamicsWorld.h>
+#include <BulletCollision/CollisionDispatch/btCollisionWorld.h>
+
 #undef __class__
 #define __class__ "Ray"
 
@@ -36,4 +39,22 @@ std::ostream& ege::operator <<(std::ostream& _os, const ege::Ray& _obj) {
 	_os << _obj.getDirection();
 	_os << "}";
 	return _os;
-}
+}
+
+void ege::Ray::testRay(ege::physics::Engine& _engine) {
+	vec3 start = m_origin;
+	vec3 stop = m_origin+m_direction*1000.0f;
+	// Start and End are vectors
+	btCollisionWorld::ClosestRayResultCallback rayCallback(start, stop);
+	EGE_ERROR("Process Raycast :");
+	// Perform raycast
+	_engine.getDynamicWorld()->rayTest(start, stop, rayCallback);
+	if(rayCallback.hasHit()) {
+		vec3 end = rayCallback.m_hitPointWorld;
+		vec3 normal = rayCallback.m_hitNormalWorld;
+		EGE_ERROR("    hit at point=" << end << " normal=" << normal);
+	} else {
+		EGE_ERROR("    No Hit");
+	}
+}
+

ege/Ray.h

@@ -10,6 +10,10 @@
 #define __EGE_RAY_H__
 
 #include <etk/math/Vector3D.h>
+namespace ege {
+	class Ray;
+};
+#include <ege/physics/Engine.h>
 
 namespace ege {
 	class Ray {
@@ -61,6 +65,8 @@ namespace ege {
 			 * @param[in] _direction The ray's direction.
 			 */
 			void set(const vec3& _origin, const vec3& _direction);
+		public:
+			void testRay(ege::physics::Engine& _engine);
 	};
 	std::ostream& operator <<(std::ostream& _os, const ege::Ray& _obj);
 };

ege/physics/Engine.h

@@ -9,6 +9,11 @@
 #ifndef __EGE_PHYSICS_ENGINE_H__
 #define __EGE_PHYSICS_ENGINE_H__
 
+namespace ege {
+	namespace physics {
+		class Engine;
+	};
+};
 #include <etk/types.h>
 #include <etk/math/Vector3D.h>
 #include <etk/math/Matrix4.h>

ege/widget/Scene.cpp

@@ -29,9 +29,15 @@
 
 #undef __class__
 #define __class__ "Scene"
+namespace etk {
+	template<> std::string to_string<std::shared_ptr<ewol::resource::Colored3DObject> >(const std::shared_ptr<ewol::resource::Colored3DObject>& _value) {
+		return "{{ERROR}}";
+	}
+};
 
 ege::widget::Scene::Scene() :
-	m_cameraName("default") {
+  signalDisplayDebug(*this, "drawDebug", "Call to draw debug after all elements"),
+  m_cameraName("default") {
 	addObjectType("ege::widget::Scene");
 }
 
@@ -114,6 +120,7 @@ void ege::widget::Scene::onDraw() {
 		for (int32_t iii=m_displayElementOrdered.size()-1; iii >= 0; iii--) {
 			m_displayElementOrdered[iii].element->drawDebug(m_debugDrawProperty, camera);
 		}
+		signalDisplayDebug.emit(m_debugDrawProperty);
 	} else {
 		EGE_WARNING("No Dynamic world ...");
 	}

ege/widget/Scene.h

@@ -32,6 +32,7 @@ class btDynamicsWorld;
 #include <LinearMath/btScalar.h>
 class btVector3;
 #include <ewol/widget/Widget.h>
+#include <ewol/signal/Signal.h>
 
 namespace ege {
 	namespace widget {
@@ -39,6 +40,8 @@ namespace ege {
 			protected:
 				std::shared_ptr<ege::Environement> m_env;
 				std::shared_ptr<ewol::resource::Colored3DObject> m_debugDrawProperty;
+			public:
+				ewol::Signal<std::shared_ptr<ewol::resource::Colored3DObject>/*, std::shared_ptr<ege::Camera>*/> signalDisplayDebug;
 			protected:
 				/**
 				 * @brief Constructor of the widget classes

sample/RayTest/appl/Windows.cpp

@@ -82,6 +82,7 @@ void appl::Windows::init() {
 		tmpWidget->setFill(bvec2(true,true));
 		tmpWidget->setCamera("basic");
 		setSubWidget(tmpWidget);
+		tmpWidget->signalDisplayDebug.bind(shared_from_this(), &appl::Windows::onCallbackDisplayDebug);
 	}
 	std::shared_ptr<ege::resource::Mesh> myMesh;
 	// Create an external box :
@@ -151,26 +152,22 @@ bool appl::Windows::onEventInput(const ewol::event::Input& _event) {
 		vec2 pos = relativePosition(_event.getPos());
 		ege::Ray ray = m_camera->getRayFromScreenPosition(pos, m_size);
 		APPL_INFO("pos=" << pos << " ray = " << ray);
+		ray.testRay(m_env->getPhysicEngine());
 		return true;
 	}
 	return false;
 }
-/*
-btCollisionWorld::ClosestRayResultCallback RayCallback(
-    btVector3(out_origin.x, out_origin.y, out_origin.z), 
-    btVector3(out_direction.x, out_direction.y, out_direction.z)
-);
-dynamicsWorld->rayTest(
-    btVector3(out_origin.x, out_origin.y, out_origin.z), 
-    btVector3(out_direction.x, out_direction.y, out_direction.z), 
-    RayCallback
-);
- 
-if(RayCallback.hasHit()) {
-    std::ostringstream oss;
-    oss << "mesh " << (int)RayCallback.m_collisionObject->getUserPointer();
-    message = oss.str();
-}else{
-    message = "background";
+
+void appl::Windows::onCallbackDisplayDebug(const std::shared_ptr<ewol::resource::Colored3DObject>& _obj) {
+	EWOL_INFO("draw user debug");
+	etk::Color<float> tmpColor(0.0, 1.0, 0.0, 0.3);
+	std::vector<vec3> vertices;
+	vertices.push_back(vec3(100,0,0));
+	vertices.push_back(vec3(100,100,0));
+	vertices.push_back(vec3(100,100,100));
+	mat4 mat;
+	mat.identity();
+	mat.translate(vec3(0,0,0));
+	_obj->draw(vertices, tmpColor, mat);
 }
-*/
+

sample/RayTest/appl/Windows.h

@@ -12,6 +12,7 @@
 #include <ewol/widget/Windows.h>
 #include <ege/Environement.h>
 #include <ege/camera/View.h>
+#include <ewol/resource/Colored3DObject.h>
 
 namespace appl {
 	class Windows : public ewol::widget::Windows {
@@ -27,6 +28,7 @@ namespace appl {
 		private:
 			void onCallbackPeriodicUpdateCamera(const ewol::event::Time& _event);
 			bool onEventInput(const ewol::event::Input& _event);
+			void onCallbackDisplayDebug(const std::shared_ptr<ewol::resource::Colored3DObject>& _obj);
 	};
 };