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main.cpp
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// #include <glad/glad.h>
#include <GL/glew.h>
#include <GLFW/glfw3.h>
#include <glm/glm.hpp>
#include <glm/gtc/matrix_transform.hpp>
#include <glm/gtc/type_ptr.hpp>
#include "tools/shader.h"
#include "tools/camera.h"
#include "tools/model.h"
#include "tools/Gshader.h"
// #include "ObjLoader.hpp"
#include "Loader.hpp"
#include <math.h>
#include <iostream>
void framebuffer_size_callback(GLFWwindow* window, int width, int height);
void mouse_callback(GLFWwindow* window, double xpos, double ypos);
void scroll_callback(GLFWwindow* window, double xoffset, double yoffset);
void processInput(GLFWwindow *window);
GLuint loadTexture(GLchar* path, int imagecase); // case 1 for png, case 2 for jpg
GLuint loadCubemap(vector<const GLchar*> faces);
// settings
const unsigned int SCR_WIDTH = 1600;
const unsigned int SCR_HEIGHT = 1200;
// camera
Camera camera(glm::vec3(0.0f, 0.0f, 5.0f));
float lastX = SCR_WIDTH / 2.0f;
float lastY = SCR_HEIGHT / 2.0f;
bool firstMouse = true;
// timing
float deltaTime = 0.0f;
float lastFrame = 0.0f;
// lighting
// glm::vec3 lightPos(1.2f, 1.0f, 2.0f);
glm::vec3 lightDir(-0.2f, -1.0f, -0.3f);
// Light attributes
glm::vec3 lightPos(0.0f, 0.0f, -10.0f);
bool AABB_flag = false;
#define FOURCC_DXT1 0x31545844 // Equivalent to "DXT1" in ASCII
#define FOURCC_DXT3 0x33545844 // Equivalent to "DXT3" in ASCII
#define FOURCC_DXT5 0x35545844 // Equivalent to "DXT5" in ASCII
GLuint loadDDS(const char * imagepath)
{
unsigned char header[124];
FILE *fp;
fp = fopen(imagepath, "rb");
if (fp == NULL)
{
printf("%s could not be opened. Are you in the right directory ? Don't forget to read the FAQ !\n", imagepath); getchar();
return 0;
}
char filecode[4];
fread(filecode, 1, 4, fp);
if (strncmp(filecode, "DDS ", 4) != 0)
{
fclose(fp);
return 0;
}
fread(&header, 124, 1, fp);
unsigned int height = *(unsigned int*)&(header[8 ]);
unsigned int width = *(unsigned int*)&(header[12]);
unsigned int linearSize = *(unsigned int*)&(header[16]);
unsigned int mipMapCount = *(unsigned int*)&(header[24]);
unsigned int fourCC = *(unsigned int*)&(header[80]);
unsigned char * buffer;
unsigned int bufsize;
bufsize = mipMapCount > 1 ? linearSize * 2 : linearSize;
buffer = (unsigned char*)malloc(bufsize * sizeof(unsigned char));
fread(buffer, 1, bufsize, fp);
fclose(fp);
unsigned int components = (fourCC == FOURCC_DXT1) ? 3 : 4;
unsigned int format;
switch(fourCC)
{
case FOURCC_DXT1:
format = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
break;
case FOURCC_DXT3:
format = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
break;
case FOURCC_DXT5:
format = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
break;
default:
free(buffer);
return 0;
}
GLuint textureID;
glGenTextures(1, &textureID);
glBindTexture(GL_TEXTURE_2D, textureID);
glPixelStorei(GL_UNPACK_ALIGNMENT,1);
unsigned int blockSize = (format == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) ? 8 : 16;
unsigned int offset = 0;
for (unsigned int level = 0; level < mipMapCount && (width || height); ++level)
{
unsigned int size = ((width+3)/4)*((height+3)/4)*blockSize;
glCompressedTexImage2D(GL_TEXTURE_2D, level, format, width, height,
0, size, buffer + offset);
offset += size;
width /= 2;
height /= 2;
if(width < 1) width = 1;
if(height < 1) height = 1;
}
std::cout << "success to load DDS file" << std::endl;
free(buffer);
return textureID;
}
GLFWwindow* Init()
{
glfwInit();
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
#ifdef __APPLE__
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
#endif
GLFWwindow* window = glfwCreateWindow(SCR_WIDTH, SCR_HEIGHT, "LearnOpenGL", NULL, NULL);
if (window == NULL)
{
std::cout << "Failed to create GLFW window" << std::endl;
glfwTerminate();
return NULL;
}
glfwMakeContextCurrent(window);
glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
glfwSetCursorPosCallback(window, mouse_callback);
glfwSetScrollCallback(window, scroll_callback);
//glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
// if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress))
// {
// std::cout << "Failed to initialize GLAD" << std::endl;
// return NULL;
// }
if (glewInit() != GLEW_OK) {
// 处理初始化失败
std::cout << "Failed to initialize GLEW" << std::endl;
return NULL;
}
stbi_set_flip_vertically_on_load(true);
glEnable(GL_DEPTH_TEST);
return window;
}
/* Planet 父类生成球体的顶点属性 */
class Planet {
public:
std::vector<float> sphereVertices; // 顶点属性
std::vector<int> sphereIndices; // 顶点索引
unsigned int VBO, VAO;
GLuint EBO;
int PRECISE = 64;
Planet() {
float PI = 3.14159;
// 生成球体的相关点数据
for(int i=0; i<=PRECISE; ++i) {
GLfloat pitch = -PI/2 + PI*i/PRECISE;
for(int j=0; j<=PRECISE; ++j) {
GLfloat yaw = 2*PI*j / PRECISE;
/* 下面有 11 个数据需要生成*/
// 生成顶点坐标 x,y,z
GLfloat x = std::cos(pitch) * std::cos(yaw);
GLfloat y = std::sin(pitch);
GLfloat z = std::cos(pitch) * -std::sin(yaw);
// 生成法向量 nx, ny, nz
GLfloat nx = std::cos(pitch) * std::cos(yaw);
GLfloat ny = std::sin(pitch);
GLfloat nz = std::cos(pitch) * -std::sin(yaw);
// 生成纹理坐标 ux, uy
GLfloat ux = (GLfloat)j/PRECISE;
GLfloat uy = (GLfloat)-i/PRECISE;
// 生成切线向量 fx, fy, fz
GLfloat fx = -std::sin(yaw);
GLfloat fy = 0.0f;
GLfloat fz = -std::cos(yaw);
sphereVertices.push_back(x);
sphereVertices.push_back(y);
sphereVertices.push_back(z);
sphereVertices.push_back(nx);
sphereVertices.push_back(ny);
sphereVertices.push_back(nz);
sphereVertices.push_back(ux);
sphereVertices.push_back(uy);
sphereVertices.push_back(fx);
sphereVertices.push_back(fy);
sphereVertices.push_back(fz);
}
}
// 索引生成
for(int i=0; i<PRECISE; i++) {
for(int j=0; j<PRECISE; j++) {
sphereIndices.push_back(i * (PRECISE + 1) + j);
sphereIndices.push_back((i+1) * (PRECISE + 1) + j);
sphereIndices.push_back(i * (PRECISE + 1) + j + 1);
sphereIndices.push_back((i+1) * (PRECISE + 1) + j);
sphereIndices.push_back(i * (PRECISE + 1) + j + 1);
sphereIndices.push_back((i+1) * (PRECISE + 1) + j + 1);
}
}
glGenVertexArrays(1, &VAO);
glGenBuffers(1, &VBO);
glBindVertexArray(VAO);
glBindBuffer(GL_ARRAY_BUFFER, VBO);
glBufferData(GL_ARRAY_BUFFER, sphereVertices.size() * sizeof(float), &sphereVertices[0], GL_STATIC_DRAW);
glGenBuffers(1, &EBO);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sphereIndices.size() * sizeof(int), &sphereIndices[0], GL_STATIC_DRAW);
// 绑定顶点坐标
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 11*sizeof(float), (void*)0);
glEnableVertexAttribArray(0);
// 绑定法向量
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 11 * sizeof(float), (void*)(3 * sizeof(float)));
glEnableVertexAttribArray(1);
// 绑定纹理坐标
glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 11*sizeof(float), (void*)(6 * sizeof(float)));
glEnableVertexAttribArray(2);
// 绑定切线向量
glVertexAttribPointer(3, 3, GL_FLOAT, GL_FALSE, 11*sizeof(float), (void*)(8 * sizeof(float)));
glEnableVertexAttribArray(3);
// unbind
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindVertexArray(0);
}
};
class Sun: Planet {
public:
Shader sunShader;
GLuint TextureDiffuse;
GLuint TextureSpecular;
GLuint TextureNormal;
static GLfloat xsun;
static GLfloat ysun;
static GLfloat zsun;
Sun(): sunShader("shaders/earth2.vs", "shaders/earth2.fs") {
TextureDiffuse = loadDDS("image/planet/molten_02_diffuse.dds");
TextureNormal = loadDDS("image/planet/molten_02_normal.dds");
TextureSpecular = loadDDS("image/planet/molten_02_specular.dds");
// xsun = 0.0f;
// ysun = 0.0f;
// zsun = -4.0f;
}
void Draw() {
sunShader.use();
sunShader.setVec3("LightInfo.ambient", glm::vec3(1.0f, 1.0f, 1.0f));
sunShader.setVec3("LightInfo.diffuse", glm::vec3(0.5f, 0.5f, 0.5f));
sunShader.setVec3("LightInfo.specular", glm::vec3(1.0f, 1.0f, 1.0f));
sunShader.setVec3("viewPos", camera.Position);
// set texture
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, TextureDiffuse);
sunShader.setInt("texture_diffuse", 0);
// set texture
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, TextureNormal);
sunShader.setInt("texture_normal", 1);
// set texture
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, TextureSpecular);
sunShader.setInt("texture_specular", 2);
glm::mat4 view;
view = glm::lookAt(camera.Position, camera.Position + camera.Front, camera.Up);
glm::mat4 projection = glm::perspective(glm::radians(camera.Zoom), (float)SCR_WIDTH / (float)SCR_HEIGHT, 0.1f, 100.0f);
view = glm::translate(view, glm::vec3(0.0f, 0.0f, -4.0f));
glm::mat4 model = glm::mat4(1.0f);
GLfloat PI = 3.14159;
xsun = 0.0f;
ysun = 0.0f;
zsun = -10.0f;
model = glm::translate(model, glm::vec3( xsun, ysun, zsun));
// 太阳自转
float angle = (GLfloat)glfwGetTime() * 3.5f;
model = glm::rotate(model, glm::radians(angle), glm::vec3(0.0f, 1.0f, 0.3f));
sunShader.setMat4("projection", projection);
sunShader.setMat4("view", view);
sunShader.setMat4("model", model);
sunShader.setFloat("LightInfo.constant", 1.0f);
sunShader.setFloat("LightInfo.linear", 0.19f);
sunShader.setFloat("LightInfo.quadratic", 0.032f);
sunShader.setInt("lightNum", 0);
sunShader.setVec3("lightDir", glm::vec3(0.0f, 0.0f, 1.0f));
glBindVertexArray(VAO);
glDrawElements(GL_TRIANGLES, PRECISE*PRECISE*6, GL_UNSIGNED_INT, 0);
}
};
GLfloat Sun::xsun = 0.0f;
GLfloat Sun::ysun = 0.0f;
GLfloat Sun::zsun = -10.0f;
class Earth : Planet{
public:
Shader earthShader;
GLuint TextureDiffuse;
GLuint TextureSpecular;
GLuint TextureNormal;
GLuint TextureDisp;
static GLfloat xearth;
static GLfloat yearth;
static GLfloat zearth;
Earth(): earthShader("newshaders/disp.vs", "newshaders/disp.fs"){
TextureDiffuse = loadDDS("image/planet/earth_diffuse.dds");
TextureNormal = loadDDS("image/planet/earth_normal.dds");
TextureSpecular = loadDDS("image/planet/earth_specular.dds");
TextureDisp = loadTexture("image/planet/earth_disp.jpg",2); // for jpg
}
void Draw() {
earthShader.use();
earthShader.setVec3("LightInfo.ambient", glm::vec3(0.2f, 0.2f, 0.2f));
earthShader.setVec3("LightInfo.diffuse", glm::vec3(1.5f, 1.5f, 1.5f));
earthShader.setVec3("LightInfo.specular", glm::vec3(1.0f, 1.0f, 1.0f));
earthShader.setVec3("viewPos", camera.Position);
// set texture
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, TextureDiffuse);
earthShader.setInt("texture_diffuse", 0);
// set texture
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, TextureNormal);
earthShader.setInt("texture_normal", 1);
// set texture
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, TextureSpecular);
earthShader.setInt("texture_specular", 2);
// set texture
glActiveTexture(GL_TEXTURE3);
glBindTexture(GL_TEXTURE_2D, TextureDisp);
earthShader.setInt("texture_disp", 3);
glm::mat4 view;
view = glm::lookAt(camera.Position, camera.Position + camera.Front, camera.Up);
glm::mat4 projection = glm::perspective(glm::radians(camera.Zoom), (float)SCR_WIDTH / (float)SCR_HEIGHT, 0.1f, 100.0f);
view = glm::translate(view, glm::vec3(0.0f, 0.0f, -4.0f));
glm::mat4 model = glm::mat4(1.0f);
xearth = Sun::xsun + 4*std::cos((GLfloat)glfwGetTime() * 0.5f);
yearth = 1.0f;
zearth = Sun::zsun + 3*std::sin((GLfloat)glfwGetTime() * 0.5f);
xearth = Sun::xsun + 4*std::cos(3.14159f);
yearth = 1.0f;
zearth = Sun::zsun + 3*std::sin(3.14159f);
model = glm::scale(model, glm::vec3(0.7f, 0.7f, 0.7f));
model = glm::translate(model, glm::vec3( xearth/0.7f, yearth/0.7f, zearth/0.7f));
float angle = (GLfloat)glfwGetTime() * 5.5f;
model = glm::rotate(model, glm::radians(angle), glm::vec3(0.0f, 1.0f, 0.3f));
earthShader.setMat4("projection", projection);
earthShader.setMat4("view", view);
earthShader.setMat4("model", model);
GLfloat lightX = 3*std::cos((GLfloat)glfwGetTime() * 0.1f);
GLfloat lightZ = 3*std::sin((GLfloat)glfwGetTime() * 0.1f);
// 设置点光源衰减的系数
earthShader.setFloat("LightInfo.constant", 1.0f);
earthShader.setFloat("LightInfo.linear", 0.19f);
earthShader.setFloat("LightInfo.quadratic", 0.032f);
earthShader.setInt("lightNum", 2);
earthShader.setVec3("pointPose[0]", glm::vec3(Sun::xsun, Sun::ysun, Sun::zsun));
earthShader.setVec3("pointPose[1]", glm::vec3(0.0f, 0.0f, -1.0f));
glBindVertexArray(VAO);
glDrawElements(GL_TRIANGLES, PRECISE*PRECISE*6, GL_UNSIGNED_INT, 0);
}
};
GLfloat Earth::xearth = Sun::xsun + 4*std::cos(3.14159f);
GLfloat Earth::yearth = 1.0f;
GLfloat Earth::zearth = Sun::zsun + 3*std::sin(3.14159f);
class Moon: Planet {
public:
Shader moonShader;
GLuint TextureDiffuse;
GLuint TextureSpecular;
GLuint TextureNormal;
static GLfloat xmoon;
static GLfloat ymoon;
static GLfloat zmoon;
GShader moonGshader;
Moon(): moonShader("newshaders/planet.vs", "newshaders/planet.fs"), moonGshader("shaders/moon.vs","shaders/moon.fs","shaders/moon.gs"){
TextureDiffuse = loadDDS("image/planet/arctic_01_diffuse.dds");
TextureNormal = loadDDS("image/planet/arctic_01_normal.dds");
TextureSpecular = loadDDS("image/planet/arctic_01_specular.dds");
}
void Draw() {
moonShader.use();
moonShader.setVec3("LightInfo.ambient", glm::vec3(0.1f, 0.1f, 0.1f));
moonShader.setVec3("LightInfo.diffuse", glm::vec3(1.0f, 1.0f, 1.0f));
moonShader.setVec3("LightInfo.specular", glm::vec3(1.0f, 1.0f, 1.0f));
moonShader.setVec3("viewPos", camera.Position);
// set texture
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, TextureDiffuse);
moonShader.setInt("texture_diffuse", 0);
// set texture
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, TextureNormal);
moonShader.setInt("texture_normal", 1);
// set texture
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, TextureSpecular);
moonShader.setInt("texture_specular", 2);
glm::mat4 view;
view = glm::lookAt(camera.Position, camera.Position + camera.Front, camera.Up);
glm::mat4 projection = glm::perspective(glm::radians(camera.Zoom), (float)SCR_WIDTH / (float)SCR_HEIGHT, 0.1f, 100.0f);
view = glm::translate(view, glm::vec3(0.0f, 0.0f, -4.0f));
glm::mat4 model = glm::mat4(1.0f);
// float x_earth1 = 0 + 3*std::cos((GLfloat)glfwGetTime() * 0.5f);
// float z_earth1 = -10 + 3*std::sin((GLfloat)glfwGetTime() * 0.5f);
xmoon = Earth::xearth + 1*std::cos((GLfloat)glfwGetTime() * 0.5f);
ymoon = 1.5f;
zmoon = Earth::zearth + 1*std::sin((GLfloat)glfwGetTime() * 0.5f);
xmoon = Earth::xearth + 1*std::cos(3.14159f);
ymoon = 1.5f;
zmoon = Earth::zearth + 1*std::sin(3.14159f);
model = glm::scale(model, glm::vec3(0.3f, 0.3f, 0.3f));
model = glm::translate(model, glm::vec3( xmoon/0.3f, ymoon/0.3f, zmoon/0.3f));
float angle = (GLfloat)glfwGetTime() * 0.5f;
model = glm::rotate(model, glm::radians(angle), glm::vec3(0.0f, 1.0f, 0.3f));
moonShader.setMat4("projection", projection);
moonShader.setMat4("view", view);
moonShader.setMat4("model", model);
GLfloat lightX = 3*std::cos((GLfloat)glfwGetTime() * 0.1f);
GLfloat lightZ = 3*std::sin((GLfloat)glfwGetTime() * 0.1f);
moonShader.setInt("lightNum", 1);
moonShader.setVec3("pointPose[0]", glm::vec3(Sun::xsun, Sun::ysun, Sun::zsun));
// 设置点光源衰减的因子
moonShader.setFloat("LightInfo.constant", 1.0f);
moonShader.setFloat("LightInfo.linear", 0.19f);
moonShader.setFloat("LightInfo.quadratic", 0.032f);
glBindVertexArray(VAO);
glDrawElements(GL_TRIANGLES, PRECISE*PRECISE*6, GL_UNSIGNED_INT, 0);
}
// 使用 GShader 显示爆炸效果
void Draw2() {
moonGshader.use();
moonGshader.setVec3("light.ambient", glm::vec3(0.1f, 0.1f, 0.1f));
moonGshader.setVec3("light.diffuse", glm::vec3(1.0f, 1.0f, 1.0f));
moonGshader.setVec3("light.specular", glm::vec3(1.0f, 1.0f, 1.0f));
moonGshader.setVec3("viewPos", camera.Position);
// set texture
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, TextureDiffuse);
moonGshader.setInt("texture_diffuse", 0);
// set texture
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, TextureNormal);
moonGshader.setInt("texture_normal", 1);
// set texture
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, TextureSpecular);
moonGshader.setInt("texture_specular", 2);
glm::mat4 view;
view = glm::lookAt(camera.Position, camera.Position + camera.Front, camera.Up);
glm::mat4 projection = glm::perspective(glm::radians(camera.Zoom), (float)SCR_WIDTH / (float)SCR_HEIGHT, 0.1f, 100.0f);
view = glm::translate(view, glm::vec3(0.0f, 0.0f, -4.0f));
glm::mat4 model = glm::mat4(1.0f);
// float x_earth1 = 0 + 3*std::cos((GLfloat)glfwGetTime() * 0.5f);
// float z_earth1 = -10 + 3*std::sin((GLfloat)glfwGetTime() * 0.5f);
xmoon = Earth::xearth + 1*std::cos((GLfloat)glfwGetTime() * 0.5f);
ymoon = 1.5f;
zmoon = Earth::zearth + 1*std::sin((GLfloat)glfwGetTime() * 0.5f);
xmoon = Earth::xearth + 1*std::cos(3.14159f);
ymoon = 1.5f;
zmoon = Earth::zearth + 1*std::sin(3.14159f);
model = glm::scale(model, glm::vec3(0.3f, 0.3f, 0.3f));
model = glm::translate(model, glm::vec3( xmoon/0.3f, ymoon/0.3f, zmoon/0.3f));
float angle = (GLfloat)glfwGetTime() * 0.5f;
model = glm::rotate(model, glm::radians(angle), glm::vec3(0.0f, 1.0f, 0.3f));
moonGshader.setMat4("projection", projection);
moonGshader.setMat4("view", view);
moonGshader.setMat4("model", model);
moonGshader.setVec3("light.direction", glm::vec3(Earth::xearth-xmoon, Earth::yearth-ymoon, Earth::zearth-zmoon));
glBindVertexArray(VAO);
glDrawElements(GL_TRIANGLES, PRECISE*PRECISE*6, GL_UNSIGNED_INT, 0);
}
};
GLfloat Moon::xmoon = 0.0f;
GLfloat Moon::ymoon = 0.0f;
GLfloat Moon::zmoon = 0.0f;
class Jupiter {
};
class Ground {
/* 地面场景绘制 */
};
class Tree {
/* 在近景中添加树的元素 */
};
class Aircraft {
/* load 一个飞行器的模型 */
};
class Elevator {
/* load 太空电梯场景 */
};
class ShipYard {
public:
Shader spaceShader;
GLuint TextureDiffuse;
GLuint TextureNormal;
GLuint TextureSpecular;
ObjLoader obj;
ShipYard(): spaceShader("shaders/space.vs", "shaders/space.fs"), obj("MegaShipYard/megashipyard.obj") {
TextureDiffuse = loadDDS("MegaShipYard/megashipyard_diffuse.dds");
TextureNormal = loadDDS("MegaShipYard/megashipyard_normal.dds");
TextureSpecular = loadDDS("MegaShipYard/megashipyard_specular.dds");
}
void Draw() {
spaceShader.use();
spaceShader.setVec3("light.ambient", glm::vec3(0.75f, 0.75f, 0.75f));
spaceShader.setVec3("light.diffuse", glm::vec3(1.0f, 1.0f, 1.0f));
spaceShader.setVec3("light.specular", glm::vec3(0.5f, 0.5f, 0.5f));
// spaceShader.setVec3("light.direction", glm::vec3(-0.2f, -1.0f, -0.3f));
spaceShader.setVec3("viewPos", camera.Position);;
// set textures
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, TextureDiffuse);
spaceShader.setInt("texture_diffuse", 0);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, TextureNormal);
spaceShader.setInt("texture_normal", 1);
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, TextureSpecular);
spaceShader.setInt("texture_specular", 2);
glm::mat4 view;
view = glm::lookAt(camera.Position, camera.Position + camera.Front, camera.Up);
glm::mat4 projection = glm::perspective(glm::radians(camera.Zoom), (float)SCR_WIDTH / (float)SCR_HEIGHT, 0.1f, 100.0f);
view = glm::translate(view, glm::vec3(0.0f, 0.0f, -4.0f));
glm::mat4 model = glm::mat4(1.0f);
float angle = (GLfloat)glfwGetTime() * 3.5f;
model = glm::scale(model, glm::vec3(0.05f, 0.05f, 0.05f));
float xspace, yspace, zspace;
xspace = -1.0f;
yspace = -4.5f;
zspace = -5.0f;
model = glm::translate(model, glm::vec3(xspace/0.05f, yspace/0.05f, zspace/0.05f));
spaceShader.setMat4("projection", projection);
spaceShader.setMat4("view", view);
spaceShader.setMat4("model", model);
spaceShader.setVec3("light.direction", glm::vec3(Earth::xearth-xspace, Earth::yearth-yspace, Earth::zearth-zspace));
obj.Draw();
}
};
class StarBase {
public:
Shader spaceShader;
GLuint TextureDiffuse;
GLuint TextureNormal;
GLuint TextureSpecular;
ObjLoader obj;
float xspace, yspace, zspace;
// 默认构造函数
StarBase(): StarBase(-4.0f, -4.5f, -5.0f) {}
StarBase(float xspace, float yspace, float zspace):xspace(xspace), yspace(yspace), zspace(zspace),spaceShader("shaders/space.vs", "shaders/space.fs"), obj("starbase/starbase_08.obj") {
// this->xspace = xspace;
// this->yspace = yspace;
// this->zspace = zspace;
TextureDiffuse = loadDDS("starbase/starbase_08_diffuse.dds");
TextureNormal = loadDDS("starbase/starbase_08_normal.dds");
TextureSpecular = loadDDS("starbase/starbase_08_specular.dds");
}
void Draw() {
spaceShader.use();
spaceShader.setVec3("light.ambient", glm::vec3(0.75f, 0.75f, 0.75f));
spaceShader.setVec3("light.diffuse", glm::vec3(1.0f, 1.0f, 1.0f));
spaceShader.setVec3("light.specular", glm::vec3(0.5f, 0.5f, 0.5f));
// spaceShader.setVec3("light.direction", glm::vec3(-0.2f, -1.0f, -0.3f));
spaceShader.setVec3("viewPos", camera.Position);;
// set textures
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, TextureDiffuse);
spaceShader.setInt("texture_diffuse", 0);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, TextureNormal);
spaceShader.setInt("texture_normal", 1);
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, TextureSpecular);
spaceShader.setInt("texture_specular", 2);
glm::mat4 view;
view = glm::lookAt(camera.Position, camera.Position + camera.Front, camera.Up);
glm::mat4 projection = glm::perspective(glm::radians(camera.Zoom), (float)SCR_WIDTH / (float)SCR_HEIGHT, 0.1f, 100.0f);
view = glm::translate(view, glm::vec3(0.0f, 0.0f, -4.0f));
glm::mat4 model = glm::mat4(1.0f);
float angle = (GLfloat)glfwGetTime() * 3.5f;
model = glm::scale(model, glm::vec3(0.05f, 0.05f, 0.05f));
// xspace = -1.0f;
// yspace = -6.5f;
// zspace = -5.0f;
model = glm::translate(model, glm::vec3(xspace/0.05f, yspace/0.05f, zspace/0.05f));
model = glm::rotate(model, glm::radians(angle), glm::vec3(0.0f, 1.0f, 0.0f));
spaceShader.setMat4("projection", projection);
spaceShader.setMat4("view", view);
spaceShader.setMat4("model", model);
spaceShader.setVec3("light.direction", glm::vec3(Earth::xearth-xspace, Earth::yearth-yspace, Earth::zearth-zspace));
obj.Draw();
}
};
class SpaceStation {
/* load 空间站的模型 */
public:
Shader spaceShader;
GLuint TextureDiffuse;
GLuint TextureNormal;
GLuint TextureSpecular;
ObjLoader obj;
SpaceStation(): spaceShader("shaders/space.vs", "shaders/space.fs"), obj("starbase/spyorb.obj") {
std::cout << "load our SpaceStation" << endl;
TextureDiffuse = loadDDS("starbase/diffuse.dds");
TextureNormal = loadDDS("starbase/normal.dds");
TextureSpecular = loadDDS("starbase/specular.dds");
std::cout << "load is ok" << endl;
}
void Draw() {
spaceShader.use();
spaceShader.setVec3("light.ambient", glm::vec3(0.05f, 0.05f, 0.05f));
spaceShader.setVec3("light.diffuse", glm::vec3(1.0f, 1.0f, 1.0f));
spaceShader.setVec3("light.specular", glm::vec3(0.5f, 0.5f, 0.5f));
// spaceShader.setVec3("light.direction", glm::vec3(-0.2f, -1.0f, -0.3f));
spaceShader.setVec3("viewPos", camera.Position);;
// set textures
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, TextureDiffuse);
spaceShader.setInt("texture_diffuse", 0);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, TextureNormal);
spaceShader.setInt("texture_normal", 1);
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, TextureSpecular);
spaceShader.setInt("texture_specular", 2);
glm::mat4 view;
view = glm::lookAt(camera.Position, camera.Position + camera.Front, camera.Up);
glm::mat4 projection = glm::perspective(glm::radians(camera.Zoom), (float)SCR_WIDTH / (float)SCR_HEIGHT, 0.1f, 100.0f);
view = glm::translate(view, glm::vec3(0.0f, 0.0f, -4.0f));
glm::mat4 model = glm::mat4(1.0f);
float angle = (GLfloat)glfwGetTime() * 3.5f;
model = glm::scale(model, glm::vec3(0.05f, 0.05f, 0.05f));
float xspace, yspace, zspace;
xspace = Earth::xearth + 2*std::cos(3.14159f);
yspace = 2.0f;
zspace = Earth::zearth + 2*std::sin(3.14159f);
model = glm::translate(model, glm::vec3(xspace/0.05f, yspace/0.05f, zspace/0.05f));
model = glm::rotate(model, glm::radians(angle), glm::vec3(0.0f, 1.0f, 0.0f));
spaceShader.setMat4("projection", projection);
spaceShader.setMat4("view", view);
spaceShader.setMat4("model", model);
spaceShader.setVec3("light.direction", glm::vec3(Earth::xearth-xspace, Earth::yearth-yspace, Earth::zearth-zspace));
obj.Draw();
}
};
// 定位导弹，可以直接追踪UFO
class Missile {
/* load 空间站的模型 */
public:
Shader spaceShader;
GLuint TextureDiffuse;
GLuint TextureNormal;
GLuint TextureSpecular;
ObjLoader obj;
float xspace, yspace, zspace;
Missile(): spaceShader("shaders/space.vs", "shaders/space.fs"), obj("missile/missile_01.obj") {
TextureDiffuse = loadDDS("missile/missile_01_diffuse.dds");
TextureNormal = loadDDS("missile/missile_01_normal.dds");
TextureSpecular = loadDDS("missile/missile_01_specular.dds");
}
void Draw() {
spaceShader.use();
spaceShader.setVec3("light.ambient", glm::vec3(0.55f, 0.55f, 0.55f));
spaceShader.setVec3("light.diffuse", glm::vec3(1.0f, 1.0f, 1.0f));
spaceShader.setVec3("light.specular", glm::vec3(0.5f, 0.5f, 0.5f));
// spaceShader.setVec3("light.direction", glm::vec3(-0.2f, -1.0f, -0.3f));
spaceShader.setVec3("viewPos", camera.Position);;
// set textures
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, TextureDiffuse);
spaceShader.setInt("texture_diffuse", 0);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, TextureNormal);
spaceShader.setInt("texture_normal", 1);
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, TextureSpecular);
spaceShader.setInt("texture_specular", 2);
glm::mat4 view;
view = glm::lookAt(camera.Position, camera.Position + camera.Front, camera.Up);
glm::mat4 projection = glm::perspective(glm::radians(camera.Zoom), (float)SCR_WIDTH / (float)SCR_HEIGHT, 0.1f, 100.0f);
view = glm::translate(view, glm::vec3(0.0f, 0.0f, -4.0f));
glm::mat4 model = glm::mat4(1.0f);
float angle = (GLfloat)glfwGetTime() * 3.5f;
model = glm::scale(model, glm::vec3(0.5f, 0.5f, 0.5f));
xspace = -1.0f;
yspace = -3.0f;
zspace = -5.0f;
model = glm::translate(model, glm::vec3(xspace/0.5f, yspace/0.5f, zspace/0.5f));
// model = glm::rotate(model, glm::radians(angle), glm::vec3(0.0f, 1.0f, 0.0f));
spaceShader.setMat4("projection", projection);
spaceShader.setMat4("view", view);
spaceShader.setMat4("model", model);
spaceShader.setVec3("light.direction", glm::vec3(Earth::xearth-xspace, Earth::yearth-yspace, Earth::zearth-zspace));
obj.Draw();
}
};
// 存储子弹的移动方向和坐标信息
class Bullet {
public:
GLfloat x;
GLfloat y;
GLfloat z;
glm::vec3 direction; // 子弹移动方向
bool flag; // 子弹发生一次碰撞后就不会再次移动
Bullet(GLfloat x, GLfloat y, GLfloat z, glm::vec3 direction): x(x), y(y), z(z), direction(direction){
flag = true;
}
};
class BulletManager {
public:
std::vector<Bullet> bullets;
void Draw() {
bullets.erase(std::remove_if(bullets.begin(), bullets.end(), [](const Bullet& b) {
return !b.flag;
}), bullets.end());
for(int i=0; i<bullets.size(); i++) {
glm::vec3 pos = glm::vec3(bullets[i].x, bullets[i].y, bullets[i].z);
pos += 0.005f * bullets[i].direction;
if(bullets[i].flag == true) {
//std::cout << "run stullet" << std::endl;
bullets[i].x = pos.x;
bullets[i].y = pos.y;
bullets[i].z = pos.z;
} else {
bullets[i].x = bullets[i].x;
bullets[i].y = bullets[i].y;
bullets[i].z = bullets[i].z;
}
glm::mat4 view;
view = glm::lookAt(camera.Position, camera.Position + camera.Front, camera.Up);
glm::mat4 projection = glm::perspective(glm::radians(camera.Zoom), (float)SCR_WIDTH / (float)SCR_HEIGHT, 0.1f, 100.0f);
view = glm::translate(view, glm::vec3(0.0f, 0.0f, -4.0f));