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main.cpp
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main.cpp
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/*
* WTEngine Demo
* By: Matthew Evans
* File: main.cpp
*
* See LICENSE.md for copyright information
*/
#include <wtengine/wtengine.hpp>
#include <damage.hpp>
#include <energy.hpp>
#include <health.hpp>
#include <size.hpp>
#include <stars.hpp>
namespace layer {
static const std::size_t background = 0;
static const std::size_t enemy = 1;
static const std::size_t player = 2;
static const std::size_t overlay = 0;
}
namespace player_pols {
static float x = 0.0f;
static float y = 0.0f;
static void reset(void) { x = y = 0.0f; };
}
int main(int argc, char **argv) {
// Set locations to load game data from.
wte::engine::add_file_location("data.zip");
// Set key bindings
wte::config::controls::p1_key_up = ALLEGRO_KEY_W;
wte::config::controls::p1_key_down = ALLEGRO_KEY_S;
wte::config::controls::p1_key_left = ALLEGRO_KEY_A;
wte::config::controls::p1_key_right = ALLEGRO_KEY_D;
wte::config::controls::p1_key_action1 = ALLEGRO_KEY_RCTRL;
wte::config::controls::p1_key_action2 = ALLEGRO_KEY_ALTGR;
// Load settings.
wte::config::load();
// Set the title screen.
wte::mgr::gfx::renderer::set_title_screen("title.bmp");
// Set the size of the play area.
wte::mgr::gfx::renderer::set_viewport_size(768, 1024);
/* ********************************* */
/* *** Input handling ************** */
/* ********************************* */
wte::add_handler<wte::NONGAME_HANDLES, wte::EVENT_KEY_DOWN, wte::handler::key>([](const int& key, ALLEGRO_DISPLAY* display) {
//wte::mgr::messages::add(wte::message("system", "new-game", "game.sdf"));
});
wte::add_handler<wte::GAME_HANDLES, wte::EVENT_KEY_DOWN, wte::handler::key>([](const int& key, ALLEGRO_DISPLAY* display) {
if(key == wte::config::controls::p1_key_up) {
wte::entity_id player_id = wte::mgr::world::get_id("player");
player_pols::y = -1.0f;
const float rad = std::atan2(player_pols::y, player_pols::x);
wte::mgr::world::set_component<wte::cmp::motion>(player_id)->direction = rad;
wte::mgr::world::set_component<wte::cmp::motion>(player_id)->x_vel = 5.0f;
wte::mgr::world::set_component<wte::cmp::motion>(player_id)->y_vel = 5.0f;
}
if(key == wte::config::controls::p1_key_down) {
wte::entity_id player_id = wte::mgr::world::get_id("player");
player_pols::y = 1.0f;
const float rad = std::atan2(player_pols::y, player_pols::x);
wte::mgr::world::set_component<wte::cmp::motion>(player_id)->direction = rad;
wte::mgr::world::set_component<wte::cmp::motion>(player_id)->x_vel = 5.0f;
wte::mgr::world::set_component<wte::cmp::motion>(player_id)->y_vel = 5.0f;
}
if(key == wte::config::controls::p1_key_left) {
wte::entity_id player_id = wte::mgr::world::get_id("player");
player_pols::x = -1.0f;
const float rad = std::atan2(player_pols::y, player_pols::x);
wte::mgr::world::set_component<wte::cmp::motion>(player_id)->direction = rad;
wte::mgr::world::set_component<wte::cmp::motion>(player_id)->x_vel = 5.0f;
wte::mgr::world::set_component<wte::cmp::motion>(player_id)->y_vel = 5.0f;
}
if(key == wte::config::controls::p1_key_right) {
wte::entity_id player_id = wte::mgr::world::get_id("player");
player_pols::x = 1.0f;
const float rad = std::atan2(player_pols::y, player_pols::x);
wte::mgr::world::set_component<wte::cmp::motion>(player_id)->direction = rad;
wte::mgr::world::set_component<wte::cmp::motion>(player_id)->x_vel = 5.0f;
wte::mgr::world::set_component<wte::cmp::motion>(player_id)->y_vel = 5.0f;
}
if(key == wte::config::controls::p1_key_action1) {
wte::entity_id player_id = wte::mgr::world::get_id("player");
wte::entity_id can_id = wte::mgr::world::get_id("main_cannon");
// Set the cannon's location to match the player.
wte::mgr::world::set_component<wte::cmp::location>(can_id)->pos_x =
wte::mgr::world::get_component<wte::cmp::location>(player_id)->pos_x;
wte::mgr::world::set_component<wte::cmp::location>(can_id)->pos_y =
wte::mgr::world::get_component<wte::cmp::location>(player_id)->pos_y -
wte::mgr::world::get_component<wte::cmp::hitbox>(can_id)->height;
// Turn the cannon on.
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(can_id)->visible = true;
wte::mgr::world::set_component<wte::cmp::ai>(can_id)->enabled = true;
wte::mgr::world::set_component<wte::cmp::hitbox>(can_id)->solid = true;
// Play sound effect.
wte::mgr::audio::sample::play(wte::mgr::assets::get<ALLEGRO_SAMPLE>("laser"), "cannon_fire");
}
if(key == wte::config::controls::p1_key_action2) {
wte::entity_id player_id = wte::mgr::world::get_id("player");
wte::entity_id shd_id = wte::mgr::world::get_id("shield");
// Set the shield's location to match the player
wte::mgr::world::set_component<wte::cmp::location>(shd_id)->pos_x =
wte::mgr::world::get_component<wte::cmp::location>(player_id)->pos_x - 28.0f;
wte::mgr::world::set_component<wte::cmp::location>(shd_id)->pos_y =
wte::mgr::world::get_component<wte::cmp::location>(player_id)->pos_y - 16.0f;
if(wte::mgr::world::set_component<energy>(shd_id)->amt > 0) {
// Enable the shield.
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(shd_id)->visible = true;
wte::mgr::world::set_component<wte::cmp::ai>(shd_id)->enabled = true;
wte::mgr::world::set_component<wte::cmp::hitbox>(shd_id)->solid = true;
wte::mgr::world::set_component<wte::cmp::hitbox>(player_id)->solid = false;
// Play sound effect.
wte::mgr::audio::sample::play(wte::mgr::assets::get<ALLEGRO_SAMPLE>("shield"), "shield_sound");
}
}
if(key == wte::config::controls::key_menu) {
if(wte::config::flags::engine_paused) {
wte::config::flags::engine_paused = false;
} else {
wte::config::flags::engine_paused = true;
}
}
});
wte::add_handler<wte::GAME_HANDLES, wte::EVENT_KEY_UP, wte::handler::key>([](const int& key, ALLEGRO_DISPLAY* display) {
if(key == wte::config::controls::p1_key_up) {
wte::entity_id player_id = wte::mgr::world::get_id("player");
if(player_pols::y < 0.0f) player_pols::y = 0.0f;
if(player_pols::x == 0.0f && player_pols::y == 0.0f) {
wte::mgr::world::set_component<wte::cmp::motion>(player_id)->x_vel = 0.0f;
wte::mgr::world::set_component<wte::cmp::motion>(player_id)->y_vel = 0.0f;
}
}
if(key == wte::config::controls::p1_key_down) {
wte::entity_id player_id = wte::mgr::world::get_id("player");
if(player_pols::y > 0.0f) player_pols::y = 0.0f;
if(player_pols::x == 0.0f && player_pols::y == 0.0f) {
wte::mgr::world::set_component<wte::cmp::motion>(player_id)->x_vel = 0.0f;
wte::mgr::world::set_component<wte::cmp::motion>(player_id)->y_vel = 0.0f;
}
}
if(key == wte::config::controls::p1_key_left) {
wte::entity_id player_id = wte::mgr::world::get_id("player");
if(player_pols::x < 0.0f) player_pols::x = 0.0f;
if(player_pols::x == 0.0f && player_pols::y == 0.0f) {
wte::mgr::world::set_component<wte::cmp::motion>(player_id)->x_vel = 0.0f;
wte::mgr::world::set_component<wte::cmp::motion>(player_id)->y_vel = 0.0f;
}
}
if(key == wte::config::controls::p1_key_right) {
wte::entity_id player_id = wte::mgr::world::get_id("player");
if(player_pols::x > 0.0f) player_pols::x = 0.0f;
if(player_pols::x == 0.0f && player_pols::y == 0.0f) {
wte::mgr::world::set_component<wte::cmp::motion>(player_id)->x_vel = 0.0f;
wte::mgr::world::set_component<wte::cmp::motion>(player_id)->y_vel = 0.0f;
}
}
if(key == wte::config::controls::p1_key_action1) {
// Turn the cannon off.
wte::entity_id can_id = wte::mgr::world::get_id("main_cannon");
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(can_id)->visible = false;
wte::mgr::world::set_component<wte::cmp::ai>(can_id)->enabled = false;
wte::mgr::world::set_component<wte::cmp::hitbox>(can_id)->solid = false;
// Stop sound effect.
wte::mgr::audio::sample::stop("cannon_fire");
}
if(key == wte::config::controls::p1_key_action2) {
wte::entity_id player_id = wte::mgr::world::get_id("player");
wte::entity_id shd_id = wte::mgr::world::get_id("shield");
// Disable shield.
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(shd_id)->visible = false;
wte::mgr::world::set_component<wte::cmp::ai>(shd_id)->enabled = false;
wte::mgr::world::set_component<wte::cmp::hitbox>(shd_id)->solid = false;
wte::mgr::world::set_component<wte::cmp::hitbox>(player_id)->solid = true;
// Stop sound effect.
wte::mgr::audio::sample::stop("shield_sound");
}
});
/* ********************************* */
/* *** Initialize game object ****** */
/* ********************************* */
wte::engine::initialize(argc, argv);
/* ********************************* */
/* *** Game variables ************** */
/* ********************************* */
wte::mgr::variables::reg<int>("score", 0);
wte::mgr::variables::reg<int>("hiscore", 0);
wte::mgr::variables::reg<int>("max_lives", 3);
wte::mgr::variables::reg<int>("lives", 3);
wte::mgr::variables::set_data_file("game.cfg");
wte::mgr::variables::load<int>("max_lives");
wte::mgr::variables::load<int>("hiscore");
/* ********************************* */
/* *** Asset loading *************** */
/* ********************************* */
wte::mgr::assets::load<ALLEGRO_BITMAP>(
"starfield",
wte::make_asset<ALLEGRO_BITMAP>(wte::config::gfx::viewport_w, wte::config::gfx::viewport_h)
);
wte::mgr::assets::load<ALLEGRO_BITMAP>("score_overlay", wte::make_asset<ALLEGRO_BITMAP>(200, 20));
wte::mgr::assets::load<ALLEGRO_BITMAP>("player_info_overlay", wte::make_asset<ALLEGRO_BITMAP>(200, 20));
wte::mgr::assets::load<ALLEGRO_BITMAP>("game_over_overlay", wte::make_asset<ALLEGRO_BITMAP>("game_over.png"));
wte::mgr::assets::load<ALLEGRO_BITMAP>("ship", wte::make_asset<ALLEGRO_BITMAP>("ship.png"));
wte::mgr::assets::load<ALLEGRO_BITMAP>("cannon", wte::make_asset<ALLEGRO_BITMAP>("cannon.png"));
wte::mgr::assets::load<ALLEGRO_BITMAP>("shield", wte::make_asset<ALLEGRO_BITMAP>("shield.png"));
wte::mgr::assets::load<ALLEGRO_BITMAP>("asteroid", wte::make_asset<ALLEGRO_BITMAP>("asteroid.png"));
// Load music for the demo into the asset manager.
wte::mgr::assets::load<ALLEGRO_AUDIO_STREAM>("music", wte::make_asset<ALLEGRO_AUDIO_STREAM>("music.ogg"));
// Load some samples in the asset manager.
wte::mgr::assets::load<ALLEGRO_SAMPLE>("laser", wte::make_asset<ALLEGRO_SAMPLE>("sfx/laser.wav"));
wte::mgr::assets::load<ALLEGRO_SAMPLE>("shield", wte::make_asset<ALLEGRO_SAMPLE>("sfx/shield.wav"));
wte::mgr::assets::load<ALLEGRO_SAMPLE>("megumin", wte::make_asset<ALLEGRO_SAMPLE>("sfx/megumin.wav"));
/* **************************************************** */
/* *** ENTITY CREATION ******************************** */
/* **************************************************** */
/* ********************************* */
/* *** Background entity *********** */
/* ********************************* */
wte::mgr::spawner::add("starfield", 0,
[](const wte::entity_id& e_id, const wte::msg_args& args) {
wte::mgr::world::set_name(e_id, "starfield");
wte::mgr::world::add_component<stars>(e_id);
wte::mgr::world::add_component<wte::cmp::gfx::background>(e_id,
wte::mgr::assets::get<ALLEGRO_BITMAP>("starfield"), layer::background, 0, 0,
[](const wte::entity_id& bkg_id) {
// Define the animation process for the starfield.
wte::mgr::world::set_component<wte::cmp::gfx::background>(bkg_id)->set_drawing();
al_clear_to_color(al_map_rgb(0,0,0));
// Move the stars.
for(std::size_t i = 0; i < MAX_STARS; i++) {
wte::mgr::world::set_component<stars>(bkg_id)->y[i] +=
wte::mgr::world::get_component<stars>(bkg_id)->speed[i] * wte::mgr::world::get_component<stars>(bkg_id)->speed_mult;
if(wte::mgr::world::get_component<stars>(bkg_id)->y[i] > wte::config::gfx::viewport_h) {
// Make a new star.
wte::mgr::world::set_component<stars>(bkg_id)->x[i] =
std::rand() % wte::config::gfx::viewport_w + 1;
wte::mgr::world::set_component<stars>(bkg_id)->y[i] = 0;
wte::mgr::world::set_component<stars>(bkg_id)->speed[i] = (std::rand() % 3 + 1) * 3;
wte::mgr::world::set_component<stars>(bkg_id)->color[i] = std::rand() % 4 + 1;
}
}
// Draw the stars.
for(std::size_t i = 0; i < MAX_STARS; i++) {
if(wte::mgr::world::get_component<stars>(bkg_id)->color[i] == 1 ||
wte::mgr::world::get_component<stars>(bkg_id)->color[i] == 4)
al_draw_pixel(wte::mgr::world::get_component<stars>(bkg_id)->x[i],
wte::mgr::world::get_component<stars>(bkg_id)->y[i], al_map_rgb(255,255,255));
if(wte::mgr::world::get_component<stars>(bkg_id)->color[i] == 2)
al_draw_pixel(wte::mgr::world::get_component<stars>(bkg_id)->x[i],
wte::mgr::world::get_component<stars>(bkg_id)->y[i], al_map_rgb(255,255,0));
if(wte::mgr::world::get_component<stars>(bkg_id)->color[i] == 3)
al_draw_pixel(wte::mgr::world::get_component<stars>(bkg_id)->x[i],
wte::mgr::world::get_component<stars>(bkg_id)->y[i], al_map_rgb(255,0,0));
}
}); // End background rendering.
wte::mgr::world::add_component<wte::cmp::dispatcher>(e_id,
[](const wte::entity_id& bkg_id, const wte::message& msg) {
// Define message processing for the starfield.
if(msg.get_cmd() == "default") wte::mgr::world::set_component<stars>(bkg_id)->speed_mult = 1;
if(msg.get_cmd() == "up") wte::mgr::world::set_component<stars>(bkg_id)->speed_mult *= 2;
if(msg.get_cmd() == "down") wte::mgr::world::set_component<stars>(bkg_id)->speed_mult /= 2;
if(msg.get_cmd() == "reset") {
wte::mgr::world::set_component<stars>(bkg_id)->speed_mult = 1;
for(std::size_t i = 0; i < MAX_STARS; i++) {
wte::mgr::world::set_component<stars>(bkg_id)->x[i] =
std::rand() % wte::config::gfx::viewport_w + 1;
wte::mgr::world::set_component<stars>(bkg_id)->y[i] =
std::rand() % wte::config::gfx::viewport_h + 1;
wte::mgr::world::set_component<stars>(bkg_id)->speed[i] = (std::rand() % 3 + 1) * 3;
wte::mgr::world::set_component<stars>(bkg_id)->color[i] = std::rand() % 4 + 1;
}
}
} // End starfield message processing.
); // End dispatcher component.
}
);
/* ********************************* */
/* *** Score overlay entity ******** */
/* ********************************* */
wte::mgr::spawner::add("score_overlay", 0,
[](const wte::entity_id& e_id, const wte::msg_args& args) {
wte::mgr::world::set_name(e_id, "score_overlay");
wte::mgr::world::add_component<wte::cmp::gfx::overlay>(e_id,
wte::mgr::assets::get<ALLEGRO_BITMAP>("score_overlay"),
wte::mgr::assets::get<ALLEGRO_FONT>("wte_default_font"),
layer::overlay, 0, wte::config::gfx::viewport_h - 20,
[](const wte::entity_id& ovr_id) {
// Define what gets displayed on the overlay.
wte::mgr::world::set_component<wte::cmp::gfx::overlay>(ovr_id)->set_drawing();
al_clear_to_color(al_map_rgba(0,0,0,0));
wte::mgr::world::set_component<wte::cmp::gfx::overlay>(ovr_id)->draw_text("Score: ", al_map_rgb(255,255,255), 110, 0, ALLEGRO_ALIGN_RIGHT);
wte::mgr::world::set_component<wte::cmp::gfx::overlay>(ovr_id)->draw_text(std::to_string(wte::mgr::variables::get<int>("score")), al_map_rgb(255,255,255), 110, 0, ALLEGRO_ALIGN_LEFT);
wte::mgr::world::set_component<wte::cmp::gfx::overlay>(ovr_id)->draw_text("High Score: ", al_map_rgb(255,255,255), 110, 10, ALLEGRO_ALIGN_RIGHT);
wte::mgr::world::set_component<wte::cmp::gfx::overlay>(ovr_id)->draw_text(std::to_string(wte::mgr::variables::get<int>("hiscore")), al_map_rgb(255,255,255), 110, 10, ALLEGRO_ALIGN_LEFT);
}
); // End score overlay drawing.
}
);
/* ********************************* */
/* *** Player Info overlay entity ** */
/* ********************************* */
wte::mgr::spawner::add("player_info_overlay", 0,
[](const wte::entity_id& e_id, const wte::msg_args& args) {
wte::mgr::world::set_name(e_id, "player_info_overlay");
wte::mgr::world::add_component<wte::cmp::gfx::overlay>(e_id,
wte::mgr::assets::get<ALLEGRO_BITMAP>("player_info_overlay"),
wte::mgr::assets::get<ALLEGRO_FONT>("wte_default_font"), layer::overlay,
wte::config::gfx::viewport_w - 200, wte::config::gfx::viewport_h - 20,
[](const wte::entity_id& ovr_id) {
// Define what gets displayed on the overlay.
wte::entity_id shd_id = wte::mgr::world::get_id("shield");
wte::mgr::world::set_component<wte::cmp::gfx::overlay>(ovr_id)->set_drawing();
al_clear_to_color(al_map_rgba(0,0,0,0));
al_draw_filled_rectangle((float)(120 - wte::mgr::world::get_component<energy>(shd_id)->amt), 0, 120, 10, al_map_rgb(255,255,0));
wte::mgr::world::set_component<wte::cmp::gfx::overlay>(ovr_id)->draw_text("Shield", al_map_rgb(255,255,255), 200, 0, ALLEGRO_ALIGN_RIGHT);
wte::mgr::world::set_component<wte::cmp::gfx::overlay>(ovr_id)->draw_text("Lives: " + std::to_string(wte::mgr::variables::get<int>("lives")), al_map_rgb(255,255,255), 200, 10, ALLEGRO_ALIGN_RIGHT);
}
); // End info overlay drawing.
}
);
/* ********************************* */
/* *** Game Over overlay entity **** */
/* ********************************* */
wte::mgr::spawner::add("game_over_overlay", 0,
[](const wte::entity_id& e_id, const wte::msg_args& args) {
wte::mgr::world::set_name(e_id, "game_over_overlay");
wte::mgr::world::add_component<wte::cmp::gfx::overlay>(e_id,
wte::mgr::assets::get<ALLEGRO_BITMAP>("game_over_overlay"),
wte::mgr::assets::get<ALLEGRO_FONT>("wte_default_font"),
layer::overlay, (wte::config::gfx::viewport_w / 2) - 240, (wte::config::gfx::viewport_h / 2) - 66,
[](const wte::entity_id& ovr_id) {}
);
wte::mgr::world::set_component<wte::cmp::gfx::overlay>(e_id)->visible = false;
}
);
/* ********************************* */
/* *** Player entity *************** */
/* ********************************* */
wte::mgr::spawner::add("player", 0,
[](const wte::entity_id& e_id, const wte::msg_args& args) {
wte::mgr::world::set_name(e_id, "player");
wte::mgr::world::add_component<wte::cmp::location>(e_id,
(wte::config::gfx::viewport_w / 2) - 5,
wte::config::gfx::viewport_h - 40);
wte::mgr::world::add_component<wte::cmp::hitbox>(e_id, 10, 10, 0);
wte::mgr::world::add_component<wte::cmp::bounding_box>(e_id, 12.0f, 0.0f,
(float)(wte::config::gfx::viewport_w - 21),
(float)(wte::config::gfx::viewport_h - 32));
wte::mgr::world::add_component<health>(e_id, 1, 1);
wte::mgr::world::add_component<wte::cmp::motion>(e_id, 0.0f, 0.0f, 0.0f);
wte::mgr::world::add_component<wte::cmp::gfx::sprite>(e_id, wte::mgr::assets::get<ALLEGRO_BITMAP>("ship"),
layer::player, 32.0f, 32.0f, -11.0f, 0.0f, 1);
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(e_id)->add_cycle("main", 0, 3);
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(e_id)->add_cycle("death", 4, 7);
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(e_id)->set_cycle("main");
// Player logic.
wte::mgr::world::add_component<wte::cmp::ai>(e_id,
[](const wte::entity_id& plr_id) {
if(wte::mgr::world::get_component<health>(plr_id)->hp <= 0) { // Check player health.
wte::mgr::world::set_component<wte::cmp::ai>(plr_id)->enabled = false;
wte::mgr::world::set_component<health>(plr_id)->hp = wte::mgr::world::get_component<health>(plr_id)->hp_max;
std::string player_name = wte::mgr::world::get_name(plr_id);
wte::mgr::messages::add(wte::message("entities", player_name, player_name, "death", ""));
}
}
); // End player logic.
// Player message handling.
wte::mgr::world::add_component<wte::cmp::dispatcher>(e_id,
[](const wte::entity_id& plr_id, const wte::message& msg) {
// Process player death.
if(msg.get_cmd() == "death") {
wte::config::flags::input_enabled = false;
// Make sure cannon stops firing
wte::entity_id cannon_id = wte::mgr::world::get_id("main_cannon");
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(cannon_id)->visible = false;
wte::mgr::world::set_component<wte::cmp::ai>(cannon_id)->enabled = false;
wte::mgr::world::set_component<wte::cmp::hitbox>(cannon_id)->solid = false;
wte::mgr::audio::sample::stop("cannon_fire");
// Just to make sure... turn shield off
wte::entity_id shield_id = wte::mgr::world::get_id("shield");
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(shield_id)->visible = false;
wte::mgr::world::set_component<wte::cmp::ai>(shield_id)->enabled = false;
wte::mgr::world::set_component<wte::cmp::hitbox>(shield_id)->solid = false;
wte::mgr::audio::sample::stop("shield_sound");
wte::mgr::world::set_component<wte::cmp::hitbox>(plr_id)->solid = false;
wte::mgr::audio::sample::play(wte::mgr::assets::get<ALLEGRO_SAMPLE>("megumin"), "once");
wte::mgr::variables::set<int>("lives", wte::mgr::variables::get<int>("lives") - 1);
wte::mgr::world::set_component<wte::cmp::motion>(plr_id)->x_vel = 0.0f;
wte::mgr::world::set_component<wte::cmp::motion>(plr_id)->y_vel = 0.0f;
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(plr_id)->set_cycle("death");
if(wte::mgr::variables::get<int>("lives") == 0) {
// Game over!
wte::mgr::messages::add(wte::message(wte::engine_time::check() + 180, "system", "end-game", ""));
wte::entity_id go_id = wte::mgr::world::get_id("game_over_overlay");
wte::mgr::world::set_component<wte::cmp::gfx::overlay>(go_id)->visible = true;
} else {
std::string player_name = wte::mgr::world::get_name(plr_id);
wte::mgr::messages::add(
wte::message(wte::engine_time::check() + 120, "entities", player_name, player_name, "reset", "")
);
}
}
// Reset player.
if(msg.get_cmd() == "reset") {
wte::config::flags::input_enabled = true;
player_pols::reset();
wte::mgr::world::set_component<wte::cmp::motion>(plr_id)->x_vel = 0.0f;
wte::mgr::world::set_component<wte::cmp::motion>(plr_id)->y_vel = 0.0f;
wte::mgr::world::set_component<wte::cmp::location>(plr_id)->pos_x = (float)((wte::config::gfx::viewport_w / 2) - 5);
wte::mgr::world::set_component<wte::cmp::location>(plr_id)->pos_y = (float)(wte::config::gfx::viewport_h - 40);
wte::mgr::world::set_component<health>(plr_id)->hp = wte::mgr::world::get_component<health>(plr_id)->hp_max;
wte::mgr::world::set_component<wte::cmp::ai>(plr_id)->enabled = true;
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(plr_id)->set_cycle("main");
wte::mgr::world::set_component<wte::cmp::hitbox>(plr_id)->solid = true;
}
// Take damage.
if(msg.get_cmd() == "damage") {
wte::mgr::world::set_component<health>(plr_id)->hp -= std::stoi(msg.get_arg(0));
}
}
); // End player message processing.
}
);
/* ********************************* */
/* *** Main cannon entity ********** */
/* ********************************* */
wte::mgr::spawner::add("main_cannon", 0,
[](const wte::entity_id& e_id, const wte::msg_args& args) {
wte::mgr::world::set_name(e_id, "main_cannon");
wte::mgr::world::add_component<wte::cmp::location>(e_id, 0, 0);
wte::mgr::world::add_component<wte::cmp::hitbox>(e_id, 10, 200, 0, false);
wte::mgr::world::set_component<wte::cmp::hitbox>(e_id)->solid = false;
wte::mgr::world::add_component<damage>(e_id, 3);
wte::mgr::world::add_component<wte::cmp::gfx::sprite>(e_id, wte::mgr::assets::get<ALLEGRO_BITMAP>("cannon"),
layer::player, 10.0f, 200.0f, 0.0f, 0.0f, 2);
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(e_id)->add_cycle("main", 0, 3);
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(e_id)->set_cycle("main");
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(e_id)->visible = false;
// Cannon logic.
wte::mgr::world::add_component<wte::cmp::ai>(e_id,
[](const wte::entity_id& can_id) {
wte::entity_id player_entity = wte::mgr::world::get_id("player");
// Set the cannon's location to match the player.
wte::mgr::world::set_component<wte::cmp::location>(can_id)->pos_x =
wte::mgr::world::get_component<wte::cmp::location>(player_entity)->pos_x;
wte::mgr::world::set_component<wte::cmp::location>(can_id)->pos_y =
wte::mgr::world::get_component<wte::cmp::location>(player_entity)->pos_y -
wte::mgr::world::get_component<wte::cmp::hitbox>(can_id)->height;
}
); // End cannon logic.
wte::mgr::world::set_component<wte::cmp::ai>(e_id)->enabled = false;
// Cannon message processing.
wte::mgr::world::add_component<wte::cmp::dispatcher>(e_id,
[](const wte::entity_id& can_id, const wte::message& msg) {
if(msg.get_cmd() == "colision") {
// Deal damage
wte::mgr::messages::add(wte::message("entities", msg.get_from(), msg.get_to(),
"damage", std::to_string(wte::mgr::world::get_component<damage>(can_id)->dmg)));
}
}
); // End cannon message processing.
}
);
/* ********************************* */
/* *** Shield entity *************** */
/* ********************************* */
wte::mgr::spawner::add("shield", 0,
[](const wte::entity_id& e_id, const wte::msg_args& args) {
wte::mgr::world::set_name(e_id, "shield");
wte::mgr::world::add_component<wte::cmp::location>(e_id, 0, 0);
wte::mgr::world::add_component<wte::cmp::hitbox>(e_id, 64, 64, 0, false);
wte::mgr::world::set_component<wte::cmp::hitbox>(e_id)->solid = false;
wte::mgr::world::add_component<energy>(e_id, 50, 100);
wte::mgr::world::add_component<damage>(e_id, 100);
wte::mgr::world::add_component<wte::cmp::gfx::sprite>(e_id, wte::mgr::assets::get<ALLEGRO_BITMAP>("shield"),
layer::player, 64.0f, 64.0f, 0.0f, 0.0f, 6);
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(e_id)->add_cycle("main", 0, 5);
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(e_id)->set_cycle("main");
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(e_id)->visible = false;
// Shield logic.
wte::mgr::world::add_component<wte::cmp::ai>(e_id,
// Enabeled AI.
[](const wte::entity_id& shd_id) {
wte::entity_id player_entity = wte::mgr::world::get_id("player");
// Set the shield's location to match the player.
wte::mgr::world::set_component<wte::cmp::location>(shd_id)->pos_x =
wte::mgr::world::get_component<wte::cmp::location>(player_entity)->pos_x - 28.0f;
wte::mgr::world::set_component<wte::cmp::location>(shd_id)->pos_y =
wte::mgr::world::get_component<wte::cmp::location>(player_entity)->pos_y - 16.0f;
// Drain the shield.
if(wte::mgr::world::set_component<energy>(shd_id)->amt > 0)
wte::mgr::world::set_component<energy>(shd_id)->amt -= 1;
if(wte::mgr::world::get_component<energy>(shd_id)->amt <= 0) {
// Disable shield.
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(shd_id)->visible = false;
wte::mgr::world::set_component<wte::cmp::ai>(shd_id)->enabled = false;
wte::mgr::world::set_component<wte::cmp::hitbox>(player_entity)->solid = true;
// Stop sound effect.
wte::mgr::audio::sample::stop("shield_sound");
}
},
// Disabeled AI.
[](const wte::entity_id& shd_id) {
// Recharge the shield.
if(wte::mgr::world::set_component<energy>(shd_id)->amt < wte::mgr::world::set_component<energy>(shd_id)->amt_max)
wte::mgr::world::set_component<energy>(shd_id)->amt += 1;
}
); // End shield logic.
wte::mgr::world::set_component<wte::cmp::ai>(e_id)->enabled = false;
// Shield message processing.
wte::mgr::world::add_component<wte::cmp::dispatcher>(e_id,
[](const wte::entity_id& shd_id, const wte::message& msg) {
if(msg.get_cmd() == "colision") {
// Deal damage
wte::mgr::messages::add(wte::message("entities", msg.get_from(), msg.get_to(),
"damage", std::to_string(wte::mgr::world::get_component<damage>(shd_id)->dmg)));
}
}
); // End shield message processing.
}
);
/* ************************************** */
/* Add the asteroid entity to the spawner */
/* Arguments: */
/* (1) X location */
/* (2) Y location */
/* (3) Direction in degrees */
/* (4) Velocity */
/* (5) Size */
/* ************************************** */
wte::mgr::spawner::add("asteroid", 5,
[](const wte::entity_id& e_id, const wte::msg_args& args) {
int temp_size = std::stoi(args[5]);
if(temp_size < 1) temp_size = 1;
if(temp_size > 8) temp_size = 8;
wte::mgr::world::set_name(e_id, "asteroid" + std::to_string(e_id));
wte::mgr::world::add_component<wte::cmp::location>(e_id, std::stof(args[1]), std::stof(args[2]));
wte::mgr::world::add_component<wte::cmp::hitbox>(e_id, (float)(temp_size * 16), (float)(temp_size * 16), 1);
wte::mgr::world::add_component<health>(e_id, temp_size * 10, temp_size * 10);
wte::mgr::world::add_component<damage>(e_id, 10);
wte::mgr::world::add_component<size>(e_id, temp_size);
wte::mgr::world::add_component<wte::cmp::motion>(e_id, 0.0f, 0.0f, 0.0f);
wte::mgr::world::set_component<wte::cmp::motion>(e_id)->direction = std::stof(args[3]) * (M_PI / 180);
wte::mgr::world::set_component<wte::cmp::motion>(e_id)->x_vel = std::stof(args[4]);
wte::mgr::world::set_component<wte::cmp::motion>(e_id)->y_vel = std::stof(args[4]);
wte::mgr::world::add_component<wte::cmp::gfx::sprite>(e_id, wte::mgr::assets::get<ALLEGRO_BITMAP>("asteroid"),
layer::enemy, 16.0f, 16.0f, 0.0f, 0.0f, (int)(30 / std::stof(args[4])));
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(e_id)->add_cycle("main", 0, 5);
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(e_id)->set_cycle("main");
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(e_id)->scale_factor_x = (float)temp_size;
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(e_id)->scale_factor_y = (float)temp_size;
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(e_id)->rotated = true;
wte::mgr::world::set_component<wte::cmp::gfx::sprite>(e_id)->direction = std::stof(args[3]) * (M_PI / 180);
// Asteroid logic.
wte::mgr::world::add_component<wte::cmp::ai>(e_id,
[](const wte::entity_id& ast_id) {
// AI for asteroids defined here.
// Perform OOB check.
if(wte::mgr::world::get_component<wte::cmp::location>(ast_id)->pos_y > (float)(wte::config::gfx::viewport_h + 100)) {
wte::mgr::messages::add(wte::message("spawner", "delete", wte::mgr::world::get_name(ast_id)));
}
// Health check. If asteroid's HP is <= 0, reward player with points and delete the entity.
if(wte::mgr::world::get_component<health>(ast_id)->hp <= 0) {
wte::mgr::messages::add(wte::message("spawner", "delete", wte::mgr::world::get_name(ast_id)));
wte::mgr::audio::sample::play(wte::mgr::assets::get<ALLEGRO_SAMPLE>("megumin"), "once", 1.0f, ALLEGRO_AUDIO_PAN_NONE, 1.8f);
wte::mgr::variables::set("score",
(wte::mgr::variables::get<int>("score") +
(10 * wte::mgr::world::get_component<size>(ast_id)->the_size)));
// If the asteroid was size >= 4, split into two.
if(wte::mgr::world::get_component<size>(ast_id)->the_size >= 4) {
const int new_size = wte::mgr::world::get_component<size>(ast_id)->the_size / 2;
float dir_a = wte::mgr::world::get_component<wte::cmp::motion>(ast_id)->direction - 90.0f;
if(dir_a < 0.0f) dir_a = 0.0f;
float dir_b = wte::mgr::world::get_component<wte::cmp::motion>(ast_id)->direction + 90.0f;
if(dir_b > 360.0f) dir_b = 360.0f;
const float new_x = wte::mgr::world::get_component<wte::cmp::location>(ast_id)->pos_x;
const float new_y = wte::mgr::world::get_component<wte::cmp::location>(ast_id)->pos_y;
const float new_vel = wte::mgr::world::get_component<wte::cmp::motion>(ast_id)->x_vel / 2;
std::string new_spawner_a = "asteroid;" + std::to_string(new_x) + ";" +
std::to_string(new_y) + ";" + std::to_string(dir_a) + ";" +
std::to_string(new_vel) + ";" + std::to_string(new_size);
std::string new_spawner_b = "asteroid;" + std::to_string(new_x) + ";" +
std::to_string(new_y) + ";" + std::to_string(dir_b) + ";" +
std::to_string(new_vel) + ";" + std::to_string(new_size);
wte::mgr::messages::add(wte::message("spawner", "new", new_spawner_a));
wte::mgr::messages::add(wte::message("spawner", "new", new_spawner_b));
}
}
}
); // End asteroid AI
// Asteroid message processing.
wte::mgr::world::add_component<wte::cmp::dispatcher>(e_id,
[](const wte::entity_id& ast_id, const wte::message& msg) {
if(msg.get_cmd() == "colision") {
// Deal damage
wte::mgr::messages::add(wte::message("entities", msg.get_from(), msg.get_to(),
"damage", std::to_string(wte::mgr::world::get_component<damage>(ast_id)->dmg)));
}
if(msg.get_cmd() == "damage") {
wte::mgr::world::set_component<health>(ast_id)->hp -= std::stoi(msg.get_arg(0));
}
}
); // End asteroid message dispatching.
} // End asteroid spawner function.
);
/* **************************************************** */
/* *** END ENTITY CREATION **************************** */
/* **************************************************** */
wte::engine::load_systems = [](){
wte::mgr::systems::add<wte::sys::movement>();
wte::mgr::systems::add<wte::sys::colision>();
wte::mgr::systems::add<wte::sys::logic>();
wte::mgr::systems::add<wte::sys::gfx::animate>();
};
wte::engine::new_game = [](){
// Spawn starting entities
wte::mgr::spawner::spawn("starfield", {});
wte::mgr::spawner::spawn("score_overlay", {});
wte::mgr::spawner::spawn("player_info_overlay", {});
wte::mgr::spawner::spawn("game_over_overlay", {});
wte::mgr::spawner::spawn("player", {});
wte::mgr::spawner::spawn("main_cannon", {});
wte::mgr::spawner::spawn("shield", {});
// Reset score.
wte::mgr::variables::set("score", 0);
// Set number of lives.
if(wte::mgr::variables::get<int>("max_lives") > 5 || wte::mgr::variables::get<int>("max_lives") < 3)
wte::mgr::variables::set("max_lives", 3);
wte::mgr::variables::set("lives", wte::mgr::variables::get<int>("max_lives"));
wte::mgr::audio::music::a::play(wte::mgr::assets::get<ALLEGRO_AUDIO_STREAM>("music"));
};
wte::engine::end_game = [](){
if(wte::mgr::variables::get<int>("score") > wte::mgr::variables::get<int>("hiscore"))
wte::mgr::variables::set("hiscore", wte::mgr::variables::get<int>("score"));
};
wte::engine::on_engine_pause = [](){
wte::mgr::audio::music::a::pause();
wte::mgr::audio::ambiance::pause();
};
wte::engine::on_engine_unpause = [](){
wte::mgr::audio::music::a::unpause();
wte::mgr::audio::ambiance::unpause();
};
// Run the game loop.
wte::do_game();
wte::mgr::variables::clear_save();
wte::mgr::variables::save<int>("max_lives");
wte::mgr::variables::save<int>("hiscore");
// Save settings.
wte::config::save();
wte::engine::de_init();
return 0; // Exit program.
}