From 04234b1f1cb3bef8fb089b2b1a0fe2ffbe5867be Mon Sep 17 00:00:00 2001
From: Fabian Klemp <fabian.klemp1@rwth-aachen.de>
Date: Fri, 14 Nov 2014 18:33:42 +0100
Subject: [PATCH] Made mouse control camera. (Stupid init of camera...)

---
 graphics.cc | 8 ++++++--
 level.cc    | 5 +++--
 level.hh    | 2 +-
 main.cc     | 7 ++++++-
 4 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/graphics.cc b/graphics.cc
index 35513f5..651fe00 100644
--- a/graphics.cc
+++ b/graphics.cc
@@ -20,6 +20,10 @@ GLFWwindow* Graphics::getWindow() {
     return window;
 }
 
+glm::uvec2 Graphics::getWindowSize() {
+    return windowSize;
+}
+
 void Graphics::setGLFWHintsForOpenGLVersion( unsigned int _version )
 {
 #ifdef __APPLE__
@@ -159,8 +163,8 @@ glm::mat4 Graphics::buildFrustum( float phiInDegree, float _near, float _far, fl
 glm::mat4 Graphics::buildViewMatrix(Level* level) {
     glm::vec4 cameraVector = glm::vec4(0.0f, 0.0f, level->getCamera().getDistance(), 0.0f);
     // rotate vector
-    glm::mat4 rotationMatrix = glm::rotate<float>(level->getCamera().getRotation()[0], glm::vec3(1.0f, 0.0f, 0.0f)) *
-        glm::rotate<float>(level->getCamera().getRotation()[1], glm::vec3(0.0f, 1.0f, 0.0f)) * glm::rotate<float>(level->getCamera().getRotation()[2], glm::vec3(0.0f, 0.0f, 1.0f));
+    glm::mat4 rotationMatrix =  
+        glm::rotate<float>(level->getCamera().getRotation()[1], glm::vec3(0.0f, 1.0f, 0.0f)) *glm::rotate<float>(level->getCamera().getRotation()[0], glm::vec3(1.0f, 0.0f, 0.0f));
     cameraVector = rotationMatrix * cameraVector;
     //construct lookAt (cameraPosition = cameraCenter + cameraVector
     return glm::lookAt(level->getCameraCenter()->getPosition() + glm::vec3(cameraVector), level->getCameraCenter()->getPosition(), glm::vec3(0.0f, 1.0f, 0.0f));
diff --git a/level.cc b/level.cc
index f55a5d4..bb8cc9f 100644
--- a/level.cc
+++ b/level.cc
@@ -41,9 +41,10 @@ void Level::render() {
     this->terrain.render();
 }
 
-void Level::update(float runTime) {
+void Level::update(float runTime, glm::vec2 mouseDelta) {
     // rotate bunny
-    cameraCenter->setRotation(glm::vec3(0.0f, 1.0472f * runTime, 0.0f));
+    //cameraCenter->setRotation(glm::vec3(0.0f, 1.0472f * runTime, 0.0f));
+    camera.updateRotation(mouseDelta/50.0f);
 }
 
 glm::vec3 Level::getAmbientLight() {
diff --git a/level.hh b/level.hh
index e472536..9af2592 100644
--- a/level.hh
+++ b/level.hh
@@ -15,7 +15,7 @@ class Level {
         Level();
         ~Level();
         void load(ACGL::OpenGL::SharedShaderProgram shader); // Shader is necessary for correct texture assigning
-        void update(float runTime);
+        void update(float runTime, glm::vec2 mouseDelta);
         void render();
         glm::vec3 getAmbientLight();
         std::vector<Light> getLights();
diff --git a/main.cc b/main.cc
index 6efddf7..4ae6e46 100644
--- a/main.cc
+++ b/main.cc
@@ -126,7 +126,12 @@ int main( int argc, char *argv[] )
             frameCount = 0;
         }
 
-        app.getLevel()->update(now - startTimeInSeconds);
+        double xpos, ypos;
+        glfwGetCursorPos(app.getGraphics()->getWindow(), &xpos, &ypos);
+        glfwSetCursorPos(app.getGraphics()->getWindow(), app.getGraphics()->getWindowSize().x/2, app.getGraphics()->getWindowSize().y/2);
+
+        app.getLevel()->update(now - startTimeInSeconds, glm::vec2((float)ypos-app.getGraphics()->getWindowSize().y/2,
+                    (float)xpos-app.getGraphics()->getWindowSize().x/2));
         app.getGraphics()->render(app.getLevel(), app.getShader());
 
         openGLCriticalError();