From a0705fcd7b51401b45ff9960a81c08520f142230 Mon Sep 17 00:00:00 2001
From: Aki <please@ignore.pl>
Date: Sun, 17 Apr 2022 11:04:00 +0200
Subject: Added some details to title screen

---
 Screen.h        |  1 +
 TitleScreen.cpp | 21 ++++++++++++++++++++-
 TitleScreen.h   | 10 +++++++++-
 3 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/Screen.h b/Screen.h
index d875165..6700acc 100644
--- a/Screen.h
+++ b/Screen.h
@@ -3,6 +3,7 @@
 
 struct Screen
 {
+    virtual ~Screen() = default;
     virtual void update(float dt) = 0;
     virtual void draw() = 0;
 };
diff --git a/TitleScreen.cpp b/TitleScreen.cpp
index d109003..9bdd47c 100644
--- a/TitleScreen.cpp
+++ b/TitleScreen.cpp
@@ -10,10 +10,27 @@
 
 extern Game g_game;
 
+static constexpr const char* TITLE {"Generic Bullet HELL"};
+static constexpr const char* PRESS {"Press SPACE to start"};
+
+
+TitleScreen::TitleScreen() :
+    m_blink {0}
+{
+    const int screen_width = GetScreenWidth();
+    const int title_width = MeasureText(TITLE, FONT_SIZE);
+    const int press_width = MeasureText(PRESS, FONT_SIZE);
+    m_title_x = (screen_width - title_width) / 2;
+    m_press_x = (screen_width - press_width) / 2;
+}
+
 
 void
 TitleScreen::update(const float dt)
 {
+    m_blink += dt;
+    if (m_blink > 2 * INTERVAL)
+        m_blink -= 2 * INTERVAL;
     if (IsKeyPressed(KEY_SPACE))
         g_game.set(std::make_unique<GameScreen>());
 }
@@ -22,5 +39,7 @@ TitleScreen::update(const float dt)
 void
 TitleScreen::draw()
 {
-    DrawText("Bullet HELL 2022", 190, 200, 20, LIGHTGRAY);
+    DrawText(TITLE, m_title_x, 160, FONT_SIZE, LIGHTGRAY);
+    if (m_blink < INTERVAL)
+        DrawText(PRESS, m_press_x, 180, FONT_SIZE, GRAY);
 }
diff --git a/TitleScreen.h b/TitleScreen.h
index a0ec64f..2839a9e 100644
--- a/TitleScreen.h
+++ b/TitleScreen.h
@@ -3,8 +3,16 @@
 #include "Screen.h"
 
 
-struct TitleScreen : public Screen
+class TitleScreen : public Screen
 {
+public:
+    TitleScreen();
     void update(float dt) override;
     void draw() override;
+private:
+    static constexpr int FONT_SIZE {20};
+    static constexpr float INTERVAL {0.7f};
+    int m_title_x;
+    int m_press_x;
+    float m_blink;
 };
-- 
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