From d0b248d09ddceee0bdf86ca8bdb45fd30077070c Mon Sep 17 00:00:00 2001
From: Kiril Kovachev <ktkovachev@gmail.com>
Date: Sat, 25 Jan 2025 02:08:05 +0000
Subject: [PATCH] Enable fullscreen

---
 src/main.c | 44 +++++++++++++++++++++++++++++++++++++-------
 1 file changed, 37 insertions(+), 7 deletions(-)

diff --git a/src/main.c b/src/main.c
index ddb6816..934e039 100644
--- a/src/main.c
+++ b/src/main.c
@@ -3,6 +3,9 @@
 #include "resource_dir.h"	// utility header for SearchAndSetResourceDir
 #include <stddef.h>
 
+const short int WINDOW_WIDTH = 1280;
+const short int WINDOW_HEIGHT = 800;
+
 int main ()
 {
 	struct MenuItem item[] = {
@@ -13,12 +16,21 @@ int main ()
 	size_t current_item = 0;
 	size_t items_len = sizeof(item) / sizeof(struct MenuItem);
 
-	// Tell the window to use vsync and work on high DPI displays
-	SetConfigFlags(FLAG_VSYNC_HINT | FLAG_WINDOW_HIGHDPI);
+	// SetConfigFlags(FLAG_VSYNC_HINT | FLAG_WINDOW_HIGHDPI);
+	SetConfigFlags(FLAG_VSYNC_HINT);
 
 	// Create the window and OpenGL context
-	InitWindow(1280, 800, "Touhou Jikuusen ~ Apotheotic Heterochronicity");
+	InitWindow(WINDOW_WIDTH, WINDOW_HEIGHT, "Touhou Jikuusen ~ Apotheotic Heterochronicity");
+	
+	HideCursor();
 
+	// see what display we are on right now
+	int display = GetCurrentMonitor();
+
+	const int MONITOR_WIDTH = GetMonitorWidth(display);
+	const int MONITOR_HEIGHT = GetMonitorHeight(display);
+
+	printf("Size of monitor: %dx%d\n", MONITOR_WIDTH, MONITOR_HEIGHT);
 	// Set the framerate to 60fps
 	SetTargetFPS(60);
 
@@ -27,15 +39,18 @@ int main ()
 
 	// Load a texture from the resources directory
 	Texture wabbit = LoadTexture("wabbit_alpha.png");
-	
+
+	RenderTexture2D canvas = LoadRenderTexture(WINDOW_WIDTH, WINDOW_HEIGHT);
+
 	// game loop
 	while (!WindowShouldClose())		// run the loop untill the user presses ESCAPE or presses the Close button on the window
 	{
-		// drawing
-		BeginDrawing();
+		// drawing onto the game screen buffer, which may be centered and surrounded in black bars
+		// in fullscreen mode
+		BeginTextureMode(canvas);
 
 		// Setup the back buffer for drawing (clear color and depth buffers)
-		ClearBackground(BLACK);
+		ClearBackground(GREEN);
 
 
 		for (int i = 0; i < items_len; i++) {
@@ -52,12 +67,27 @@ int main ()
 				current_item--;
 			}
 		}
+
+		if (IsKeyPressed(KEY_ENTER) && (IsKeyDown(KEY_LEFT_ALT) || IsKeyDown(KEY_RIGHT_ALT))) {
+            // toggle the state
+ 			ToggleFullscreen();
+ 		}
+
 		// draw some text using the default font
 		DrawText("TOUHOU!!!!", 200,200,20,WHITE);
 
 		// draw our texture to the screen
 		DrawTexture(wabbit, 400, 200, WHITE);
 		
+
+		// finish rendering to canvas
+		EndTextureMode();
+
+		BeginDrawing();
+		// place the contents of the canvas onto the screen
+		ClearBackground(WHITE);
+		DrawTextureRec(canvas.texture, (Rectangle){.x = 0, .y = 0, .width = WINDOW_WIDTH, .height = -WINDOW_HEIGHT}, (Vector2){.x = 0, .y=0}, WHITE);
+		DrawCircle(GetMouseX(), GetMouseY(), 10, WHITE);
 		// end the frame and get ready for the next one  (display frame, poll input, etc...)
 		EndDrawing();
 	}