Add files via upload

lesson#12.2/raylib_firstWindow/dub.json

@@ -0,0 +1,13 @@
+{
+	"authors": [
+		"rillk500"
+	],
+	"copyright": "free",
+	"dependencies": {
+		"raylib-d": "~>2.5.0"
+	},
+	"libs": [ "raylib" ],
+	"description": "A minimal D application.",
+	"license": "no license",
+	"name": "raylib_firstwindow"
+}

lesson#12.2/raylib_firstWindow/dub.selections.json

@@ -0,0 +1,6 @@
+{
+	"fileVersion": 1,
+	"versions": {
+		"raylib-d": "2.5.0"
+	}
+}

lesson#12.2/raylib_firstWindow/source/app.d

@@ -0,0 +1,39 @@
+import test;
+
+import raylib;
+
+void main() {
+	// creating window
+	InitWindow(720, 640, "Dlang Raylib Window");
+	SetTargetFPS(30); // frames per second
+
+	// initialization using a constructor
+	Entity entity = Entity("car.png", 100, 50);
+
+	/* manual initialization
+		entity.tex = LoadTexture(path.toStringz);
+		entity.x = 100;
+		entity.y = 50;
+	*/
+
+	while(!WindowShouldClose()) {
+		// process events
+
+		// update
+
+		// draw
+		BeginDrawing(); 		// clear the screen
+		ClearBackground(WHITE); // set background color to WHITE
+
+		entity.draw(); // draw entity texture to the window
+
+		// display
+		EndDrawing();
+	}
+
+	// no need to free the entity texture memory
+	// entity destructor frees the texture memory once the program quits
+
+	// close the window and quit
+	CloseWindow();
+}

lesson#12.2/raylib_firstWindow/source/test.d

@@ -0,0 +1,33 @@
+module test;
+
+import std.stdio: writeln;
+import std.string: toStringz;
+
+import raylib;
+
+// structure is a user defined data type
+// it allows to combine existing data types to define a new type
+struct Entity {
+	Texture2D tex;
+
+	int x;
+	int y;
+
+	// member function: no need for arguments, member variables are visible to the function
+	void draw() {
+		DrawTexture(tex, x, y, WHITE);
+	}
+
+	// constructor this() {}
+	this(string path, int posX, int posY) {
+		tex = LoadTexture(path.toStringz);
+
+		x = posX;
+		y = posY;
+	}
+
+	// destructor ~this() {}
+	~this() {
+		UnloadTexture(tex);
+	}
+}