mouse controll

cw 4/src/ex_4_1.hpp

@@ -28,12 +28,20 @@ glm::vec3 cameraDir = glm::vec3(1.f, 0.f, 0.f);
 
 glm::vec3 spaceshipPos = glm::vec3(-4.f, 0, 0);
 glm::vec3 spaceshipDir = glm::vec3(1.f, 0.f, 0.f);
+glm::vec3 spaceshipUp = glm::vec3(0.f, 1.f, 0.f);
 GLuint VAO,VBO;
 
 float aspectRatio = 1.f;
 
+float lastFrameTime = -1.f;
+float deltaTime = 0.f;
+
 glm::vec3 lightColor = glm::vec3(0.9, 0.7, 0.8);
 
+bool moveCamWithMouse = false;
+glm::vec2 posMousePressed;
+glm::vec2 posMouseReleased;
+
 glm::mat4 createCameraMatrix()
 {
 	glm::vec3 cameraSide = glm::normalize(glm::cross(cameraDir,glm::vec3(0.f,1.f,0.f)));
@@ -100,6 +108,9 @@ void renderScene(GLFWwindow* window)
 	glm::mat4 transformation;
 	float time = glfwGetTime();
 
+	deltaTime = time - lastFrameTime;
+	deltaTime = glm::min(deltaTime, 0.1f);
+	lastFrameTime = time;
 
 	glUseProgram(program);
 	//planet
@@ -155,9 +166,50 @@ void loadModelToContext(std::string path, Core::RenderContext& context)
 	context.initFromAssimpMesh(scene->mMeshes[0]);
 }
 
+void cursor_position_callback(GLFWwindow* window, double xpos, double ypos)
+{
+	if (moveCamWithMouse) {
+		glm::vec3 spaceshipSide = glm::normalize(glm::cross(spaceshipDir, spaceshipUp));
+		
+		//int winWidth, winHeight;
+		//glfwGetWindowSize(window, &winWidth, &winHeight);
+		//glm::vec2 currMouseWorldPos = glm::vec2(2 * xpos / winWidth - 1, -(2 * ypos / winHeight - 1));
+		//glm::vec2 lastMouseWorldPos = glm::vec2(2 * posMousePressed.x / winWidth - 1, -(2 * posMousePressed.y / winHeight - 1));
+
+		//glm::vec3 lastPosOnClickPlane = spaceshipPos + 1.5f * spaceshipDir
+		//	+ lastMouseWorldPos.x * spaceshipSide
+		//	+ lastMouseWorldPos.y * spaceshipUp;
+		//glm::vec3 currPosOnClickPlane = spaceshipPos + 1.5f * spaceshipDir
+		//	+ currMouseWorldPos.x * spaceshipSide
+		//	+ currMouseWorldPos.y * spaceshipUp;
+		//spaceshipDir = glm::normalize(spaceshipDir - (currPosOnClickPlane - lastPosOnClickPlane) / 10.f);
+
+		glm::vec3 diff = spaceshipSide * (xpos - posMousePressed.x) - spaceshipUp * (ypos - posMousePressed.y);
+		spaceshipDir = glm::normalize(spaceshipDir - diff / 1000.f);
+		
+		posMousePressed = glm::vec2(xpos, ypos);
+	}
+}
+
+void mouse_button_callback(GLFWwindow* window, int button, int action, int mods)
+{
+	double xpos, ypos;
+	glfwGetCursorPos(window, &xpos, &ypos);
+	posMousePressed = glm::vec2(xpos, ypos);
+
+	if (button == GLFW_MOUSE_BUTTON_1 && action == GLFW_PRESS) {
+		moveCamWithMouse = true;
+	}
+	if (button == GLFW_MOUSE_BUTTON_1 && action == GLFW_RELEASE) {
+		moveCamWithMouse = false;
+	}
+}
+
 void init(GLFWwindow* window)
 {
 	glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
+	glfwSetCursorPosCallback(window, cursor_position_callback);
+	glfwSetMouseButtonCallback(window, mouse_button_callback);
 
 	glEnable(GL_DEPTH_TEST);
 	program = shaderLoader.CreateProgram("shaders/shader_4_1.vert", "shaders/shader_4_1.frag");
@@ -175,8 +227,8 @@ void shutdown(GLFWwindow* window)
 void processInput(GLFWwindow* window)
 {
 	glm::vec3 spaceshipSide = glm::normalize(glm::cross(spaceshipDir, glm::vec3(0.f, 1.f, 0.f)));
-	float angleSpeed = 0.005f;
+	float angleSpeed = 3.f * deltaTime;
-	float moveSpeed = 0.005f;
+	float moveSpeed = 3.f * deltaTime;
 	if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS) {
 		glfwSetWindowShouldClose(window, true);
 	}