From e789c1687299bbaac5ff0f2dae3a0944c7b49fd7 Mon Sep 17 00:00:00 2001
From: Edouard DUPIN <yui.heero@gmail.com>
Date: Wed, 28 Jun 2017 21:56:26 +0200
Subject: [PATCH] [DEV] update triangle draw

---
 ewol/resource/Colored3DObject.cpp | 21 +++++++++++++++++++--
 ewol/resource/Colored3DObject.hpp |  9 +++++++--
 2 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/ewol/resource/Colored3DObject.cpp b/ewol/resource/Colored3DObject.cpp
index b8051944..779fcc16 100644
--- a/ewol/resource/Colored3DObject.cpp
+++ b/ewol/resource/Colored3DObject.cpp
@@ -34,7 +34,7 @@ ewol::resource::Colored3DObject::~Colored3DObject() {
 }
 
 
-void ewol::resource::Colored3DObject::draw(std::vector<vec3>& _vertices,
+void ewol::resource::Colored3DObject::draw(const std::vector<vec3>& _vertices,
                                            const etk::Color<float>& _color,
                                            bool _updateDepthBuffer,
                                            bool _depthtest) {
@@ -76,7 +76,7 @@ void ewol::resource::Colored3DObject::draw(std::vector<vec3>& _vertices,
 	}
 }
 
-void ewol::resource::Colored3DObject::draw(std::vector<vec3>& _vertices,
+void ewol::resource::Colored3DObject::draw(const std::vector<vec3>& _vertices,
                                            const etk::Color<float>& _color,
                                            mat4& _transformationMatrix,
                                            bool _updateDepthBuffer,
@@ -492,6 +492,23 @@ void ewol::resource::Colored3DObject::drawCone(float _radius,
 	draw(tmpVertices, _tmpColor, _transformationMatrix);
 }
 
+void ewol::resource::Colored3DObject::drawTriangles(const std::vector<vec3>& _vertex,
+                                                    const std::vector<uint32_t>& _indice,
+                                                    mat4& _transformationMatrix,
+                                                    const etk::Color<float>& _tmpColor,
+                                                    const vec3& _offset) {
+	std::vector<vec3> tmpVertices;
+	for (size_t iii=0; iii<_indice.size()/3; ++iii) {
+		tmpVertices.push_back(_vertex[_indice[iii*3 + 0]]+_offset);
+		tmpVertices.push_back(_vertex[_indice[iii*3 + 1]]+_offset);
+		tmpVertices.push_back(_vertex[_indice[iii*3 + 2]]+_offset);
+		//EWOL_INFO("  indices " << _indice[iii*3 + 0] << " " << _indice[iii*3 + 1] << " " << _indice[iii*3 + 2]);
+		//EWOL_INFO(" triangle " << _vertex[_indice[iii*3 + 0]] << " " << _vertex[_indice[iii*3 + 1]] << " " << _vertex[_indice[iii*3 + 2]]);
+	}
+	//EWOL_INFO("display " << tmpVertices.size() << " vertices form " << _indice.size());
+	draw(tmpVertices, _tmpColor, _transformationMatrix);
+}
+
 namespace etk {
 	template<> std::string to_string(ewol::resource::Colored3DObject const&) {
 		return "!!ewol::resource::Colored3DObject!ERROR!CAN_NOT_BE_CONVERT!!";
diff --git a/ewol/resource/Colored3DObject.hpp b/ewol/resource/Colored3DObject.hpp
index bad77b28..e6e466b1 100644
--- a/ewol/resource/Colored3DObject.hpp
+++ b/ewol/resource/Colored3DObject.hpp
@@ -30,11 +30,11 @@ namespace ewol {
 				DECLARE_RESOURCE_FACTORY(Colored3DObject);
 				virtual ~Colored3DObject();
 			public:
-				virtual void draw(std::vector<vec3>& _vertices,
+				virtual void draw(const std::vector<vec3>& _vertices,
 				                  const etk::Color<float>& _color,
 				                  bool _updateDepthBuffer=true,
 				                  bool _depthtest=true);
-				virtual void draw(std::vector<vec3>& _vertices,
+				virtual void draw(const std::vector<vec3>& _vertices,
 				                  const etk::Color<float>& _color,
 				                  mat4& _transformationMatrix,
 				                  bool _updateDepthBuffer=true,
@@ -77,6 +77,11 @@ namespace ewol {
 				              int _longs,
 				              mat4& _transformationMatrix,
 				              const etk::Color<float>& _tmpColor);
+				void drawTriangles(const std::vector<vec3>& _vertex,
+				                   const std::vector<uint32_t>& _indice,
+				                   mat4& _transformationMatrix,
+				                   const etk::Color<float>& _tmpColor,
+				                   const vec3& _offset=vec3(0,0,0.1));
 		};
 	};
 };