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Window.cpp
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Window.cpp
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/****************************/
/***** by ANDY THAI *****/
/****************************/
#include "window.h"
const char* window_title = "PROJECT TITANIC";
// INITIALIZATIONS FOR RENDERED OBJECTS
GLint bounds_shaderProgram, skybox_shaderProgram, toon_shaderProgram,
terrain_shaderProgram, water_shaderProgram, particle_shaderProgram, outline_shaderProgram;
Skybox * skybox; // Skybox
OBJObject * model; // Player's model, ship
OBJObject * buoy; // Collectible buoy
std::vector<Island*> isles; // Vector of generated islands
std::vector<OBJObject*> buoys; // Vector of generated buoys
Particles * explosion; // Explosion effect on collision with land
Particles * water_trail; // Water trail effect from ship
// Water variables
Water * ocean;
bool go_backwards = false; // Determines when to loop wave movements
clock_t tpf; // Clock to count time elapsed
float elapsedTime; // How much time has elapsed
float time2; // Reverse time counter for wave looping movement
// AUDIO
Audio * sound;
// TOGGLE VARIABLES (Do not edit!)
bool TOGGLE_BOUNDING_BOXES = false; // Press B to show bounding boxes.
int SHOW_NORMALS = 0; // Variable to color terrains with their normals
bool FREE_CAMERA = false; // Press C to allow 'free' control of the camera
bool SHOW_OUTLINES = true; // Press O to toggle silhouettes
bool SHOW_WATER = true; // Press L to hide/unhide water
bool DEBUG = false; // Use 0 to toggle invincibility, disables bounds collision game over condition
bool SPRAY_PARTICLES = false; // Press F to spray blue particle trails from the ship
int TOON_SHADING = true; // Press P to toggle discretized color shading
int SHOW_REFLECTION = 1; // Press X to toggle reflection
int SHOW_REFRACTION = 1; // Press Z to toggle refraction
// GAME OPTIONS (You may edit these!)
const int ISLAND_NUM = 10; // Default: 10
const int BUOY_NUM = 10; // Default: 10
const float ISLAND_MAX_RANGE = 1000.0f; // Minimum range to generate islands
const float ISLAND_MIN_RANGE = -1000.0f; // Maximum range to generate islands
// Non-editable game vars
bool GAME_OVER = false; // Really self-explanatory
bool PRINT_GAME_OVER = false; // Helps prints only one game over message
float game_over_rotate = 0.0f; // Keeps track of ship's rotation post-game over
bool ship_collided = false; // Helps calculate when ship has collided and when to color bounds red
int key_pressed; // Holds currently pressed key
bool key_down; // Determines if any key is currently held down
float ship_angle = 0.0f; // Store angle of ship to rotate it
glm::vec3 STORED_CAM_POS; // Store original camera position to recover it for C
float STORED_SHIP_ANGLE; // Store original ship angle to recover it for C
Island * tutorial_island; // Used to stop islands from being generated on top of the ship
GLuint normal_toggle_var; // Sends information to terrain shader for normals coloring
GLuint toon_toggle_var; // Sends information to toon shader to toggle toon coloring
GLuint uCam_pos; // Sends camera pos information to shader
GLuint sRefract; // Toggle refraction
GLuint sReflect; // Toggle reflection
GLuint uCam_look_at; // Sends camera look_at information to shader
glm::vec3 lastPoint; // Holds last point for mouse/cursor movement
bool place_island = true; // Used to check if two islands are overlapping
bool intersects_origin = false; // Used to check if island overlaps ship starting area
glm::mat4 ORIGINAL_SHIP_POS; // Holds ship's initial toWorld
glm::mat4 ORIGINAL_SHIP_BOUND_POS; // Holds ship's bound's initial toWorld;
int NUM_COLLECTED = 0; // Number of buoys collected
// SHADERS: On some systems you need to change this to the absolute path
#define BOUNDS_VERTEX_SHADER_PATH "../bounds_shader.vert"
#define BOUNDS_FRAGMENT_SHADER_PATH "../bounds_shader.frag"
#define TERRAIN_VERTEX_SHADER_PATH "../terrainShader.vert"
#define TERRAIN_FRAGMENT_SHADER_PATH "../terrainShader.frag"
#define SKYBOX_VERTEX_SHADER_PATH "../skybox.vert"
#define SKYBOX_FRAGMENT_SHADER_PATH "../skybox.frag"
#define TOON_VERTEX_SHADER_PATH "../toonshader.vert"
#define TOON_FRAGMENT_SHADER_PATH "../toonshader.frag"
#define WATER_VERTEX_SHADER_PATH "../water_shader.vert"
#define WATER_FRAGMENT_SHADER_PATH "../water_shader.frag"
#define PARTICLE_VERTEX_SHADER_PATH "../ParticleShader.vert"
#define PARTICLE_FRAGMENT_SHADER_PATH "../ParticleShader.frag"
#define OUTLINE_VERTEX_SHADER_PATH "../outline_shader.vert"
#define OUTLINE_FRAGMENT_SHADER_PATH "../outline_shader.frag"
// Default camera parameters
glm::vec3 cam_pos(-20.3139f, 47.818f, -116.562f); // e | Position of camera
glm::vec3 cam_look_at(0.0f, 0.0f, 0.0f); // d | This is where the camera looks at
glm::vec3 cam_up(0.0f, 1.0f, 0.0f); // up | What orientation "up" is
// Window variables
int Window::width;
int Window::height;
// Matrices
glm::mat4 Window::P; // Projection
glm::mat4 Window::V; // Camera matrix
void Window::initialize_objects()
{
std::cout << "\nStarting Project Titanic..." << std::endl;
std::cout << "\nInitializing variables..." << std::endl;
// RNG initializer
std::srand(std::time(0));
// Skybox initialization
skybox = new Skybox(1000);
skybox->loadCubemap();
// Water initialization
ocean = new Water();
ocean->toWorld = glm::translate(glm::mat4(1.0f), glm::vec3(0.0f, 0.0f, 0.0f));
ocean->scale(4000.0f, 15.0f, 4000.0f);
// Start clock for water waves
tpf = clock();
// Initialize constant island to prevent islands spawning on ship
std::cout << "\nGenerating " << ISLAND_NUM << " island(s)..." << std::endl;
tutorial_island = new Island(2, rand() % 3 + 1); // size, color
tutorial_island->update();
// Randomly place islands
for (int i = 0; i < ISLAND_NUM; i++) {
int terrainColor = rand() % 3 + 1;
isles.push_back(new Island(rand() % 2 + 2, terrainColor));
place_island = true;
// Repeat if island intersects / collides
while (place_island == true) {
place_island = false;
intersects_origin = false;
float isle_x = (ISLAND_MIN_RANGE + 1) + (((float)rand()) / (float)RAND_MAX) * (ISLAND_MAX_RANGE - (ISLAND_MIN_RANGE + 1));
float isle_z = (ISLAND_MIN_RANGE + 1) + (((float)rand()) / (float)RAND_MAX) * (ISLAND_MAX_RANGE - (ISLAND_MIN_RANGE + 1));
std::cout << "\nIsland #" << i + 1 << std::endl << "x: " << isle_x << ", z: " << isle_z << std::endl;
isles[i]->move(isle_x, isle_z);
// Don't spawn island on top of ship
place_island = isles[i]->checkBounds(tutorial_island);
if (place_island == true) {
std::cout << "Uh oh! Island #" << i + 1 << " is too close to the ship! Moving it someplace else..." << std::endl;
isles[i]->move(-isle_x, -isle_z);
intersects_origin = true;
}
// Don't intersect with other islands
if (intersects_origin == false) {
for (int j = 0; j < i; j++) {
place_island = isles[i]->checkBounds(isles[j]);
if (place_island == true) {
std::cout << "Woops! Island #" << i + 1 << " is intersecting with Island #" << j + 1 << "! Trying new coordinates..." << std::endl;
isles[i]->move(-isle_x, -isle_z);
break;
}
}
}
}
}
std::cout << "\nIsland generation and placement completed!" << std::endl;
// Initialize ship model
std::cout << "\nParsing models..." << std::endl;
model = new OBJObject("assets/cruise_ship/Cruiser 2012.obj");
model->scale(0.1f);
model->toWorld = glm::rotate(glm::mat4(1.0f), 90.0f * glm::pi<float>() / 180.0f, glm::vec3(0.0f, 1.0f, 0.0f)) * model->toWorld;
model->bounding_box->toWorld = glm::rotate(glm::mat4(1.0f), 90.0f * glm::pi<float>() / 180.0f, glm::vec3(0.0f, 1.0f, 0.0f)) * model->bounding_box->toWorld;
model->translate(0.0f, -3.0f, 0.0f);
model->bounding_box->update();
ORIGINAL_SHIP_POS = glm::mat4(model->toWorld);
ORIGINAL_SHIP_BOUND_POS = glm::mat4(model->bounding_box->toWorld);
// Buoys
buoy = new OBJObject("assets/buoy/HarborBuoy.obj");
buoy->object_color = glm::vec3(1.0f, 165.0f / 255.0f, 0.0f);
buoy->scale(0.2f);
buoy->bounding_box->toWorld = glm::scale(glm::mat4(1.0f), glm::vec3(0.3f, 3.0f, 1.1f));
for (int i = 0; i < BUOY_NUM; i++) {
buoys.push_back(new OBJObject());
buoys[i]->vertices = buoy->vertices;
buoys[i]->indices = buoy->indices;
buoys[i]->normals = buoy->normals;
buoys[i]->initialize();
buoys[i]->object_color = buoy->object_color;
buoys[i]->scale(0.2f);
buoys[i]->bounding_box->toWorld = buoy->bounding_box->toWorld;
}
std::cout << "Models parsed!" << std::endl;
// Randomly place buoys
std::cout << "\nPlacing buoys..." << std::endl;
for (int i = 0; i < BUOY_NUM; i++) {
place_island = true;
// Repeat if island intersects / collides
while (place_island == true) {
place_island = false;
float isle_x = (ISLAND_MIN_RANGE + 1) + (((float)rand()) / (float)RAND_MAX) * (ISLAND_MAX_RANGE - (ISLAND_MIN_RANGE + 1));
float isle_z = (ISLAND_MIN_RANGE + 1) + (((float)rand()) / (float)RAND_MAX) * (ISLAND_MAX_RANGE - (ISLAND_MIN_RANGE + 1));
std::cout << "\nBuoy #" << i + 1 << std::endl << "x: " << isle_x << ", z: " << isle_z << std::endl;
buoys[i]->translate(isle_x, 0.0f, isle_z);
// Don't intersect with other islands
if (intersects_origin == false) {
for (int j = 0; j < isles.size(); j++) {
place_island = buoys[i]->checkBounds(isles[j]);
if (place_island == true) {
std::cout << "Woops! Buoy #" << i + 1 << " is intersecting with Island #" << j + 1 << "! Trying new coordinates..." << std::endl;
buoys[i]->translate(-isle_x, 0.0f, -isle_z);
break;
}
}
}
}
}
std::cout << "\nIsland generation and placement completed!" << std::endl;
// Initialize particle explosion
explosion = new Particles();
water_trail = new Particles(true);
// Initialize sound files
std::cout << "\nLoading sound files..." << std::endl;
std::vector<std::string> sound_files;
sound_files.push_back("assets/sounds/ocean_waves.wav");
sound_files.push_back("assets/sounds/ship_bell.wav");
sound_files.push_back("assets/sounds/crash.wav");
sound_files.push_back("assets/sounds/cartoon.wav"); // Cartoon by Nicolai Heidlas
sound_files.push_back("assets/sounds/fanfare.wav");
sound = new Audio(sound_files);
std::cout << "Sound files loaded!" << std::endl;
// Load the shader programs. Make sure you have the correct filepath up top
std::cout << "\nLoading SHADER files:" << std::endl;
terrain_shaderProgram = LoadShaders(TERRAIN_VERTEX_SHADER_PATH, TERRAIN_FRAGMENT_SHADER_PATH);
bounds_shaderProgram = LoadShaders(BOUNDS_VERTEX_SHADER_PATH, BOUNDS_FRAGMENT_SHADER_PATH);
skybox_shaderProgram = LoadShaders(SKYBOX_VERTEX_SHADER_PATH, SKYBOX_FRAGMENT_SHADER_PATH);
toon_shaderProgram = LoadShaders(TOON_VERTEX_SHADER_PATH, TOON_FRAGMENT_SHADER_PATH);
water_shaderProgram = LoadShaders(WATER_VERTEX_SHADER_PATH, WATER_FRAGMENT_SHADER_PATH);
particle_shaderProgram = LoadShaders(PARTICLE_VERTEX_SHADER_PATH, PARTICLE_FRAGMENT_SHADER_PATH);
outline_shaderProgram = LoadShaders(OUTLINE_VERTEX_SHADER_PATH, OUTLINE_FRAGMENT_SHADER_PATH);
std::cout << "\n\nInitialization process complete!" << std::endl;
// Print controls
std::cout << "\n\n\nCONTROLS:" << std::endl << std::endl;
std::cout << " W - Move ship forward" << std::endl;
std::cout << " A - Rotate ship left" << std::endl;
std::cout << " S - Move ship backward" << std::endl;
std::cout << " D - Rotate ship right" << std::endl;
std::cout << " C - Toggle 'free' camera movement" << std::endl;
std::cout << " In free camera movement, you can use the mouse wheel to zoom in and out" << std::endl;
std::cout << " You can also hold down the mouse and drag it to rotate the camera" << std::endl;
std::cout << " WASD in this mode will move the camera instead of the ship" << std::endl;
std::cout << " T - Re-initialize terrains" << std::endl;
std::cout << " N - Toggle normal colorings for terrain" << std::endl;
std::cout << " R - Restart the game on the same map" << std::endl;
std::cout << " O - Toggle silhouettes for toon shading" << std::endl;
std::cout << " 0 - Toggle DEBUG mode - no game overs!" << std::endl;
std::cout << " L - Hide/unhide water" << std::endl;
std::cout << " M - Regenerate map" << std::endl;
std::cout << " , - Regenerate map into singular islands" << std::endl;
std::cout << " G - Mute sound" << std::endl;
std::cout << " P - Toggle toon coloring" << std::endl;
std::cout << " Z - Toggle water refraction" << std::endl;
std::cout << " X - Toggle water reflection" << std::endl;
}
// Treat this as a destructor function. Delete dynamically allocated memory here.
void Window::clean_up()
{
delete(skybox);
delete(model);
delete(sound);
delete(tutorial_island);
delete(ocean);
delete(buoy);
delete(explosion);
delete(water_trail);
// Deletes islands and associated terrains
for (int i = 0; i < isles.size(); i++) {
delete(isles[i]);
}
for (int i = 0; i < buoys.size(); i++) {
delete(buoys[i]);
}
// Delete shaders
glDeleteProgram(bounds_shaderProgram);
glDeleteProgram(skybox_shaderProgram);
glDeleteProgram(toon_shaderProgram);
glDeleteProgram(outline_shaderProgram);
glDeleteProgram(terrain_shaderProgram);
glDeleteProgram(water_shaderProgram);
glDeleteProgram(particle_shaderProgram);
}
GLFWwindow* Window::create_window(int width, int height)
{
// Initialize GLFW
if (!glfwInit())
{
fprintf(stderr, "Failed to initialize GLFW\n");
return NULL;
}
// 4x antialiasing
glfwWindowHint(GLFW_SAMPLES, 4);
#ifdef __APPLE__ // Because Apple hates comforming to standards
// Ensure that minimum OpenGL version is 3.3
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
// Enable forward compatibility and allow a modern OpenGL context
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
#endif
// Create the GLFW window
GLFWwindow* window = glfwCreateWindow(width, height, window_title, NULL, NULL);
// Check if the window could not be created
if (!window)
{
fprintf(stderr, "Failed to open GLFW window.\n");
fprintf(stderr, "Either GLFW is not installed or your graphics card does not support modern OpenGL.\n");
glfwTerminate();
return NULL;
}
// Make the context of the window
glfwMakeContextCurrent(window);
// Set swap interval to 1
glfwSwapInterval(1);
// Get the width and height of the framebuffer to properly resize the window
glfwGetFramebufferSize(window, &width, &height);
// Call the resize callback to make sure things get drawn immediately
Window::resize_callback(window, width, height);
return window;
}
void Window::resize_callback(GLFWwindow* window, int width, int height)
{
Window::width = width;
Window::height = height;
// Set the viewport size. This is the only matrix that OpenGL maintains for us in modern OpenGL!
glViewport(0, 0, width, height);
if (height > 0)
{
P = glm::perspective(45.0f, (float)width / (float)height, 0.1f, 4000.0f);
V = glm::lookAt(cam_pos, cam_look_at, cam_up);
}
}
void Window::idle_callback()
{
// This is called when the ship collides
if (GAME_OVER && PRINT_GAME_OVER) {
FREE_CAMERA = true; // Take away control from player
explosion->update(0.1f, 1000, glm::vec3(model->bounding_box->toWorld[3][0],
model->bounding_box->toWorld[3][1], model->bounding_box->toWorld[3][2]));
// Sinking animation
if (game_over_rotate < 15.0f) {
model->rotate(0.2f, glm::vec3(0.0f, 0.0f, 1.0f));
game_over_rotate += 0.2f;
}
model->translate(0.0f, -0.015f, 0.0f);
return;
}
// Draw trail for spray particles action (F)
water_trail->update(0.1f, 50, glm::vec3(model->bounding_box->toWorld[3][0],
model->bounding_box->toWorld[3][1], model->bounding_box->toWorld[3][2]));
// Updates camera
float ship_x = model->bounding_box->toWorld[3][0];
float ship_y = model->bounding_box->toWorld[3][1];
float ship_z = model->bounding_box->toWorld[3][2];
// Play ambient sound
sound->play(0); // Ocean
sound->play(3); // Background music
if (!FREE_CAMERA) {
cam_look_at = glm::vec3(ship_x, ship_y, ship_z);
}
V = glm::lookAt(cam_pos, cam_look_at, cam_up);
// Ship controls
if (key_down) {
if (key_pressed == GLFW_KEY_W) {
glm::vec3 toMove = glm::vec3(0.0f, 0.0f, 0.55f); // 0.55f for non-20, 2.5x with 20+ islands
if (ISLAND_NUM >= 20) {
toMove.z *= 2.5f;
}
else if (ISLAND_NUM >= 10) {
toMove.z *= 1.75f;
}
toMove = glm::vec3(glm::rotate(glm::mat4(1.0f), ship_angle, glm::vec3(0.0f, 1.0f, 0.0f)) * glm::vec4(toMove, 1.0f));
if (!FREE_CAMERA) {
model->translate(toMove.x, toMove.y, toMove.z);
}
cam_pos += toMove;
}
else if (key_pressed == GLFW_KEY_S) {
glm::vec3 toMove = glm::vec3(0.0f, 0.0f, -0.55f); // -0.55 for non-20 islands, 2.5x with 20+ islands
if (ISLAND_NUM >= 20) {
toMove.z *= 2.5f;
}
else if (ISLAND_NUM >= 10) {
toMove.z *= 1.75f;
}
toMove = glm::vec3(glm::rotate(glm::mat4(1.0f), ship_angle, glm::vec3(0.0f, 1.0f, 0.0f)) * glm::vec4(toMove, 1.0f));
if (!FREE_CAMERA) {
model->translate(toMove.x, toMove.y, toMove.z);
}
cam_pos += toMove;
}
else if (key_pressed == GLFW_KEY_A) {
float curr_x = model->toWorld[3][0];
float curr_y = model->toWorld[3][1];
float curr_z = model->toWorld[3][2];
if (!FREE_CAMERA) {
model->translate(-curr_x, -curr_y, -curr_z);
}
cam_pos -= glm::vec3(curr_x, curr_y, curr_z);
float rotation_a = 0.01f;
if (!FREE_CAMERA) {
model->toWorld = glm::rotate(glm::mat4(1.0f), rotation_a, glm::vec3(0.0f, 1.0f, 0.0f)) * model->toWorld;
model->bounding_box->toWorld = glm::rotate(glm::mat4(1.0f), rotation_a, glm::vec3(0.0f, 1.0f, 0.0f)) * model->bounding_box->toWorld;
model->bounding_box->update();
model->translate(curr_x, curr_y, curr_z);
}
ship_angle += rotation_a;
cam_pos = glm::vec3(glm::rotate(glm::mat4(1.0f), rotation_a, glm::vec3(0.0f, 1.0f, 0.0f)) * glm::vec4(cam_pos, 1.0f));
cam_pos += glm::vec3(curr_x, curr_y, curr_z);
}
else if (key_pressed == GLFW_KEY_D) {
float curr_x = model->toWorld[3][0];
float curr_y = model->toWorld[3][1];
float curr_z = model->toWorld[3][2];
model->translate(-curr_x, -curr_y, -curr_z);
cam_pos -= glm::vec3(curr_x, curr_y, curr_z);
float rotation_d = -0.01f;
ship_angle += rotation_d;
if (!FREE_CAMERA) {
model->toWorld = glm::rotate(glm::mat4(1.0f), rotation_d, glm::vec3(0.0f, 1.0f, 0.0f)) * model->toWorld;
model->bounding_box->toWorld = glm::rotate(glm::mat4(1.0f), rotation_d, glm::vec3(0.0f, 1.0f, 0.0f)) * model->bounding_box->toWorld;
model->bounding_box->update();
model->translate(curr_x, curr_y, curr_z);
}
cam_pos = glm::vec3(glm::rotate(glm::mat4(1.0f), rotation_d, glm::vec3(0.0f, 1.0f, 0.0f)) * glm::vec4(cam_pos, 1.0f));
cam_pos += glm::vec3(curr_x, curr_y, curr_z);
}
}
// CHECKS FOR SHIP COLLISION WITH ISLANDS
bool land_collides = false;
for (int i = 0; i < isles.size(); i++) {
land_collides = model->checkBounds(isles[i]);
if (land_collides) {
if (!DEBUG) {
GAME_OVER = true;
}
ship_collided = true;
}
}
// CHECKS FOR SHIP COLLISION WITH BUOYS
for (int i = 0; i < buoys.size(); i++) {
if (model->bounding_box->check_collision(buoys[i]->bounding_box) == true && buoys[i]->toDraw == true) {
buoys[i]->toDraw = false;
NUM_COLLECTED++;
if (NUM_COLLECTED == BUOY_NUM) {
sound->play(4); // fanfare
}
else {
sound->play(1); // ship bell;
}
break;
}
}
// COLORS BOUNDING BOXES RED IF COLLIDED
if (ship_collided) {
model->bounding_box->collision = true;
ship_collided = false;
}
if (GAME_OVER && !PRINT_GAME_OVER) {
PRINT_GAME_OVER = true;
sound->play(2); // Ship crash sound
std::cout << "\n\nYOU'VE HIT LAND. GAME OVER!" << std::endl;
FREE_CAMERA = true;
}
}
void Window::display_callback(GLFWwindow* window)
{
// Clear the color and depth buffers
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
/********** RENDER MODEL **********/
glUseProgram(toon_shaderProgram);
toon_toggle_var = glGetUniformLocation(toon_shaderProgram, "toggle_toon");
glUniform1i(toon_toggle_var, TOON_SHADING);
skybox->sendLight(toon_shaderProgram); // Send light information to toon shader
model->draw(toon_shaderProgram);
//buoy->draw(toon_shaderProgram);
for (int i = 0; i < buoys.size(); i++) {
if (buoys[i]->toDraw)
buoys[i]->draw(toon_shaderProgram);
}
// Draw outlines
if (SHOW_OUTLINES) {
glUseProgram(outline_shaderProgram);
glDepthMask(GL_TRUE);
model->draw(outline_shaderProgram);
//buoy->draw(outline_shaderProgram);
for (int i = 0; i < buoys.size(); i++) {
if (buoys[i]->toDraw)
buoys[i]->draw(outline_shaderProgram);
}
}
/********** MODEL END **********/
/********** RENDER PARTICLES **********/
// Explosion on game over
if (GAME_OVER && PRINT_GAME_OVER) {
glUseProgram(particle_shaderProgram);
explosion->draw(particle_shaderProgram);
}
if (SPRAY_PARTICLES) {
glUseProgram(particle_shaderProgram);
water_trail->draw(particle_shaderProgram);
}
/********** END PARTICLES **********/
/********** RENDER TERRAIN **********/
glUseProgram(terrain_shaderProgram);
// Send uniforms
normal_toggle_var = glGetUniformLocation(terrain_shaderProgram, "normal_toggle");
glUniform1i(normal_toggle_var, SHOW_NORMALS);
skybox->sendLight(terrain_shaderProgram);
// Draw terrains
for (int i = 0; i < isles.size(); i++) {
isles[i]->draw(terrain_shaderProgram);
}
// Draw terrain outlines
if (SHOW_OUTLINES) {
glUseProgram(outline_shaderProgram);
glDepthMask(GL_TRUE);
for (int i = 0; i < isles.size(); i++) {
isles[i]->draw(outline_shaderProgram);
}
}
/********** TERRAIN END **********/
/********** RENDER SKYBOX **********/
glUseProgram(skybox_shaderProgram);
skybox->sendLight(skybox_shaderProgram);
skybox->draw(skybox_shaderProgram);
/********** SKYBOX END **********/
/********** RENDER WATER **********/
glUseProgram(water_shaderProgram);
// Adjust timer for input into water waves
sRefract = glGetUniformLocation(water_shaderProgram, "show_refract");
glUniform1i(sRefract, SHOW_REFRACTION);
sReflect = glGetUniformLocation(water_shaderProgram, "show_reflect");
glUniform1i(sReflect, SHOW_REFLECTION);
elapsedTime = (float)(clock() - tpf) / CLOCKS_PER_SEC;
if (elapsedTime > 13.0f && go_backwards == false) {
tpf = clock();
time2 = elapsedTime;
go_backwards = true;
}
if (go_backwards == true) {
time2 = (time2 - 0.01f);
elapsedTime = time2;
if (time2 < 0.0f) {
go_backwards = false;
tpf = clock();
}
}
// Send information to water shader
uCam_pos = glGetUniformLocation(water_shaderProgram, "camPos");
glUniform3f(uCam_pos, cam_pos.x, cam_pos.y, cam_pos.z);
glUniform1f(glGetUniformLocation(water_shaderProgram, "u_time"), elapsedTime / 5.0f);
// Draw ocean
if (SHOW_WATER) {
ocean->draw(water_shaderProgram);
}
/********** WATER END **********/
/********** RENDER BOUNDING BOXES **********/
if (TOGGLE_BOUNDING_BOXES) {
glUseProgram(bounds_shaderProgram);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); // Set wireframe mode
// Draw bounding box for ship
model->bounding_box->draw(bounds_shaderProgram);
// Draw bounding box for buoy
//buoy->bounding_box->draw(bounds_shaderProgram);
// Draw bounding boxes for islands
for (int i = 0; i < isles.size(); i++) {
isles[i]->drawBounds(bounds_shaderProgram);
}
for (int i = 0; i < buoys.size(); i++) {
buoys[i]->bounding_box->draw(bounds_shaderProgram);
}
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); // Turn off wireframe after rendering bounds
}
/********** BOUNDING BOXES END **********/
// Gets events, including input such as keyboard and mouse or window resizing
glfwPollEvents();
// Swap buffers
glfwSwapBuffers(window);
}
void Window::key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
{
// Check for a key press
if (action == GLFW_PRESS)
{
key_down = true;
key_pressed = key;
// Check if escape was pressed
if (key == GLFW_KEY_ESCAPE)
{
// Close the window. This causes the program to also terminate.
glfwSetWindowShouldClose(window, GL_TRUE);
}
else if (key == GLFW_KEY_B) {
if (TOGGLE_BOUNDING_BOXES == true) {
TOGGLE_BOUNDING_BOXES = false;
}
else {
TOGGLE_BOUNDING_BOXES = true;
}
}
else if (key == GLFW_KEY_G) {
sound->toggleMuteAll();
}
else if (key == GLFW_KEY_Y) {
if (mods == GLFW_MOD_SHIFT) {
model->translate(0.0f, 3.0f, 0.0f);
}
else {
model->translate(0.0f, -3.0f, 0.0f);
}
}
else if (key == GLFW_KEY_T) {
std::cout << "Regenerating terrain!" << std::endl;
for (int i = 0; i < isles.size(); i++) {
for (int j = 0; j < isles[i]->lands.size(); j++) {
isles[i]->lands[j]->init();
}
}
}
else if (key == GLFW_KEY_N) {
if (SHOW_NORMALS == 0) {
std::cout << "Normals coloring on!" << std::endl;
SHOW_NORMALS = 1;
}
else {
std::cout << "Normals coloring off!" << std::endl;
SHOW_NORMALS = 0;
}
}
else if (key == GLFW_KEY_P) {
if (TOON_SHADING == 0) {
std::cout << "Toon coloring on!" << std::endl;
TOON_SHADING = 1;
}
else {
std::cout << "Toon off!" << std::endl;
TOON_SHADING = 0;
}
}
else if (key == GLFW_KEY_M) {
regen();
}
else if (key == GLFW_KEY_COMMA) {
regen_single();
}
else if (key == GLFW_KEY_O) {
if (SHOW_OUTLINES == false) {
std::cout << "Toggle silhouette outlines on!" << std::endl;
SHOW_OUTLINES = true;
}
else {
std::cout << "Toggle silhouette outlines off!" << std::endl;
SHOW_OUTLINES = false;
}
}
else if (key == GLFW_KEY_0) {
if (DEBUG == false) {
std::cout << "Toggle DEBUG MODE on!" << std::endl;
DEBUG = true;
}
else {
std::cout << "Toggle DEBUG MODE off!" << std::endl;
DEBUG = false;
}
}
else if (key == GLFW_KEY_L) {
if (SHOW_WATER == false) {
std::cout << "Showing water!" << std::endl;
SHOW_WATER = true;
}
else {
std::cout << "Hiding water!" << std::endl;
SHOW_WATER = false;
}
}
else if (key == GLFW_KEY_F) {
if (SPRAY_PARTICLES == false) {
std::cout << "Spraying blue particles!" << std::endl;
SPRAY_PARTICLES = true;
}
else {
std::cout << "Stopped spraying particles!" << std::endl;
SPRAY_PARTICLES = false;
}
}
else if (key == GLFW_KEY_Z) {
if (SHOW_REFRACTION == 1) {
SHOW_REFRACTION = 0;
}
else {
SHOW_REFRACTION = 1;
}
}
else if (key == GLFW_KEY_X) {
if (SHOW_REFLECTION == 1) {
SHOW_REFLECTION = 0;
}
else {
SHOW_REFLECTION = 1;
}
}
else if (key == GLFW_KEY_R) {
FREE_CAMERA = false;
GAME_OVER = false;
PRINT_GAME_OVER = false;
game_over_rotate = 0.0f;
ship_angle = 0.0f;
bool ship_collided = false;
model->toWorld = ORIGINAL_SHIP_POS;
model->bounding_box->toWorld = ORIGINAL_SHIP_BOUND_POS;
model->bounding_box->update();
cam_pos = glm::vec3(-20.3139f, 47.818f, -116.562f);
std::cout << "\nYou have reset the ship!" << std::endl;
}
else if (key == GLFW_KEY_C) {
if (!GAME_OVER) {
if (FREE_CAMERA == true) {
std::cout << "Free camera movement turned off!" << std::endl;
FREE_CAMERA = false;
cam_pos = STORED_CAM_POS;
ship_angle = STORED_SHIP_ANGLE;
}
else {
std::cout << "Free camera movement turned on!" << std::endl;
STORED_CAM_POS = glm::vec3(cam_pos);
STORED_SHIP_ANGLE = ship_angle;
FREE_CAMERA = true;
}
}
}
}
else if (action == GLFW_RELEASE) {
key_down = false;
}
}
/******************* CAMERA CONTROLS *******************/
void Window::mouse_button_callback(GLFWwindow* window, int button, int action, int mods) {
if (button == GLFW_MOUSE_BUTTON_LEFT && action == GLFW_PRESS)
{
glm::dvec2 curPos;
glfwGetCursorPos(window, &curPos.x, &curPos.y);
lastPoint = trackBallMapping(curPos);
glm::mat4 rotationM;
}
}
glm::vec3 Window::trackBallMapping(glm::dvec2 curPos) {
glm::vec3 vec;
float d;
vec.x = (2.0f*curPos.x - Window::width) / Window::width;
vec.y = (Window::height - 2.0f*curPos.y) / Window::height;
vec.z = 0.0f;
d = glm::length(vec);
d = (d < 1.0) ? d : 1.0;
vec.z = sqrtf(1.001 - d*d);
glm::normalize(vec);
return vec;
}
void Window::cursor_callback(GLFWwindow* window, double xpos, double ypos) {
int leftMouse = glfwGetMouseButton(window, GLFW_MOUSE_BUTTON_LEFT);
int rightMouse = glfwGetMouseButton(window, GLFW_MOUSE_BUTTON_RIGHT);
if (leftMouse == GLFW_PRESS && FREE_CAMERA)
{
// Track cursor for rotation
glm::vec3 direction;
float roat_angle;
glm::vec3 currentPoint;
glm::dvec2 curPos(xpos, ypos);
// Rotate
currentPoint = trackBallMapping(curPos); // Get the current position on track ball
// Sphere location
direction = glm::vec3(currentPoint.x - lastPoint.x, currentPoint.y - lastPoint.y, currentPoint.z - lastPoint.z);
float velocity = glm::length(direction);
if (velocity > 0.0001)
{
// Get rotation axis
glm::vec3 rotAxis;
rotAxis = glm::cross(lastPoint, currentPoint);
roat_angle = velocity;
// Get rotation matrix
glm::mat4 rotationM = glm::rotate(glm::mat4(1.0f), roat_angle, rotAxis);
// Rotate cam_pos
glm::vec4 new_cam_pos = rotationM * glm::vec4(cam_pos, 1.0f);
cam_pos = glm::vec3(new_cam_pos.x / new_cam_pos.w, new_cam_pos.y / new_cam_pos.w, new_cam_pos.z / new_cam_pos.w);
// Rotate cam_up
// New i vector
glm::vec3 new_i = glm::normalize(cam_look_at - cam_pos);
glm::vec3 interCam = glm::cross(cam_up, new_i);
glm::vec3 new_cam_up = glm::normalize(glm::cross(new_i, interCam));
V = glm::lookAt(cam_pos, cam_look_at, cam_up);
lastPoint = currentPoint;
}
}
}
void Window::scroll_callback(GLFWwindow* window, double xoffset, double yoffset) {
if (FREE_CAMERA) {
cam_pos.z += yoffset;
V = glm::lookAt(cam_pos, cam_look_at, cam_up);
}
}
// Regenerate map with islands
void Window::regen() {
FREE_CAMERA = false;
GAME_OVER = false;
PRINT_GAME_OVER = false;
game_over_rotate = 0.0f;
ship_angle = 0.0f;
ship_collided = false;
NUM_COLLECTED = 0;
model->toWorld = ORIGINAL_SHIP_POS;
model->bounding_box->toWorld = ORIGINAL_SHIP_BOUND_POS;
model->bounding_box->update();
cam_pos = glm::vec3(-20.3139f, 47.818f, -116.562f);
// Reset buoys
for (int i = 0; i < buoys.size(); i++) {
buoys[i]->toDraw = true;
buoys[i]->object_color = buoy->object_color;
buoys[i]->scale(0.2f);
buoys[i]->toWorld = glm::mat4(1.0f);
buoys[i]->bounding_box->toWorld = buoy->bounding_box->toWorld;
}
// Randomly place islands
for (int i = 0; i < isles.size(); i++) {
place_island = true;
for (int k = 0; k < isles[i]->lands.size(); k++) {
//isles[i]->lands[k]->toWorld = glm::mat4(1.0f);
for (int l = 0; l < isles[i]->lands[k]->bounds.size(); l++) {
isles[i]->lands[k]->bounds[l]->toWorld = glm::mat4(1.0f);
isles[i]->lands[k]->bounds[l]->update();
}
}
// Repeat if island intersects / collides
while (place_island == true) {
place_island = false;
intersects_origin = false;
float isle_x = (ISLAND_MIN_RANGE + 1) + (((float)rand()) / (float)RAND_MAX) * (ISLAND_MAX_RANGE - (ISLAND_MIN_RANGE + 1));
float isle_z = (ISLAND_MIN_RANGE + 1) + (((float)rand()) / (float)RAND_MAX) * (ISLAND_MAX_RANGE - (ISLAND_MIN_RANGE + 1));
std::cout << "\nIsland #" << i + 1 << std::endl << "x: " << isle_x << ", z: " << isle_z << std::endl;
isles[i]->move(isle_x, isle_z);
// Don't spawn island on top of ship
place_island = isles[i]->checkBounds(tutorial_island);
if (place_island == true) {
std::cout << "Uh oh! Island #" << i + 1 << " is too close to the ship! Moving it someplace else..." << std::endl;
isles[i]->move(-isle_x, -isle_z);
intersects_origin = true;
}
// Don't intersect with other islands
if (intersects_origin == false) {
for (int j = 0; j < i; j++) {
place_island = isles[i]->checkBounds(isles[j]);
if (place_island == true) {
std::cout << "Woops! Island #" << i + 1 << " is intersecting with Island #" << j + 1 << "! Trying new coordinates..." << std::endl;
isles[i]->move(-isle_x, -isle_z);
break;
}
}
}
}
}
std::cout << "\nIsland generation and placement completed!" << std::endl;
// Randomly place buoys
std::cout << "\nPlacing buoys..." << std::endl;
for (int i = 0; i < buoys.size(); i++) {
place_island = true;
// Repeat if island intersects / collides
while (place_island == true) {
place_island = false;
float isle_x = (ISLAND_MIN_RANGE + 1) + (((float)rand()) / (float)RAND_MAX) * (ISLAND_MAX_RANGE - (ISLAND_MIN_RANGE + 1));
float isle_z = (ISLAND_MIN_RANGE + 1) + (((float)rand()) / (float)RAND_MAX) * (ISLAND_MAX_RANGE - (ISLAND_MIN_RANGE + 1));
std::cout << "\nBuoy #" << i + 1 << std::endl << "x: " << isle_x << ", z: " << isle_z << std::endl;
buoys[i]->translate(isle_x, 0.0f, isle_z);
// Don't intersect with other islands