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#include "games/Game.hpp"
#include "games/tetris/Tetris.hpp"
#include "games/snake/Snake.hpp"
#include "games/minesweeper/Minesweeper.hpp"
#include "games/pong/Pong.hpp"
#include "common/defs.hpp"
#include "renderer/Renderer.hpp"
#include <assert.h>
#include <memory>
std::unique_ptr<Game>
Game::Select(GameType type)
{
switch (type) {
case no_game: {
return nullptr;
} break;
case minesweeper: {
return std::make_unique<Minesweeper>();
} break;
case snake: {
return std::make_unique<Snake>();
} break;
case tetris: {
return std::make_unique<Tetris>();
} break;
case pong: {
return std::make_unique<Pong>();
} break;
InvalidDefaultCase;
}
return nullptr;
}
float
Game::ProcessDt()
{
uint64_t tnow_milliseconds = SDL_GetTicks();
uint64_t tlast_milliseconds = m_tlast_milliseconds;
uint64_t dt_milliseconds = tnow_milliseconds - tlast_milliseconds;
float dt_seconds = float(dt_milliseconds) / 1000.0f;
dt_seconds += m_dt_remaining_seconds;
m_tlast_milliseconds = tnow_milliseconds;
m_dt_remaining_seconds = 0.0f;
return dt_seconds;
}
bool
Game::Update(std::vector<SDL_Event>& events)
{
g_renderer.SetCameraSize(4.0f, 3.0f);
g_renderer.SetClearColor(m_clear_color);
float dt = ProcessDt();
for (SDL_Event& event : events) {
if (m_game_status == game_resume) {
if (event.type == SDL_EVENT_KEY_DOWN && event.key.key == SDLK_ESCAPE) {
m_game_status = game_pause;
}
else {
ProcessEvent(event);
}
}
else if (m_game_status == game_pause) {
ProcessEventDuringPause(event);
}
}
bool result = true;
switch (m_game_status) {
case game_start: DrawGameStartMenu(); break;
case game_resume: FinishUpdate(dt); break;
case game_over: DrawGameOverMenu(); break;
case game_pause: DrawGamePauseMenu(); break;
case game_exit: result = false; break;
InvalidDefaultCase;
}
if (m_game_status != game_start &&
m_game_status != game_exit)
{
Draw();
}
return result;
}
void
Game::DrawGameStartMenu()
{
// there is no menu, we just start the game.
Start();
}
void
Game::DrawGameOverMenu()
{
ImGui::Begin("DefaultGameOverMenu", nullptr, s_imgui_window_flags_menu);
ImGui::Text("Game Over.");
if (ImGui::Button("Play Again")) {
m_game_status = game_start;
}
if (ImGui::Button("Exit")) {
m_game_status = game_exit;
}
ImGui::End();
}
void
Game::DrawGamePauseMenu()
{
ImGui::Begin("DefaultGamePauseMenu", nullptr, s_imgui_window_flags_menu);
if (ImGui::Button("Resume")) {
m_game_status = game_resume;
}
if (ImGui::Button("Restart")) {
m_game_status = game_start;
}
if (ImGui::Button("Exit")) {
m_game_status = game_exit;
}
ImGui::End();
}
void
Game::ProcessEventDuringPause(SDL_Event& event)
{
switch (event.type) {
case SDL_EVENT_KEY_DOWN: {
if (event.key.key == SDLK_ESCAPE) {
m_game_status = game_resume;
}
}
default:;
}
}
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