adding the core_window_should_close example

Author: sDos280

examples/core/core_window_should_close.py

@@ -0,0 +1,74 @@
+"""
+
+raylib [core] example - Window Should Close
+
+"""
+from pyray import *
+from raylib.colors import (
+    RAYWHITE,
+    LIGHTGRAY,
+    WHITE,
+    BLACK
+)
+from raylib import (
+    KEY_NULL,
+    KEY_ESCAPE,
+    KEY_Y,
+    KEY_N
+)
+
+# Initialization
+# --------------------------------------------------------------------------------------
+SCREEN_WIDTH = 800
+SCREEN_HEIGHT = 450
+
+init_window(SCREEN_WIDTH, SCREEN_HEIGHT, "raylib [core] example - window should close")
+
+set_exit_key(KEY_NULL)  # Disable KEY_ESCAPE to close window, X-button still works
+
+exitWindowRequested = False  # Flag to request window to exit
+exitWindow = False  # Flag to set window to exit
+
+set_target_fps(60)  # Set our game to run at 60 frames-per-second
+# --------------------------------------------------------------------------------------
+
+# Main game loop
+while not exitWindow:
+
+    # Update
+    # ----------------------------------------------------------------------------------
+    #  Detect if X-button or KEY_ESCAPE have been pressed to close window
+    if window_should_close() or is_key_pressed(KEY_ESCAPE):
+        exitWindowRequested = True
+
+    if exitWindowRequested:
+
+        # A request for close window has been issued, we can save data before closing
+        # or just show a message asking for confirmation
+
+        if is_key_pressed(KEY_Y):
+            exitWindow = True
+        elif is_key_pressed(KEY_N):
+            exitWindowRequested = False
+
+    # ----------------------------------------------------------------------------------
+
+    # Draw
+    # ----------------------------------------------------------------------------------
+    begin_drawing()
+
+    clear_background(RAYWHITE)
+
+    if exitWindowRequested:
+
+        draw_rectangle(0, 100, SCREEN_WIDTH, 200, BLACK)
+        draw_text("Are you sure you want to exit program? [Y/N]", 40, 180, 30, WHITE)
+
+    else:
+        draw_text("Try to close the window to get confirmation message!", 120, 200, 20, LIGHTGRAY)
+
+    end_drawing()
+    # ----------------------------------------------------------------------------------
+
+# De-Initialization
+close_window()  # Close window and OpenGL context