viper110110

I have a top down game where things sometimes go off the screen and you want to know where they are to go get them. I want markers on the edge of the screen to show where the target item is. I have tried a couple different strategies and none of them seem to be working. Here is my current one in case that helps.

Vector2 screenRatio = new Vector2(camera.Width, camera.Height);
                        screenRatio.Normalize();
                        Vector2 distance = snakePellets[i].worldPosition - snake.Head.worldPosition;
                        distance.Normalize();
                        if (distance.X / distance.Y > (float)camera.Width / (float)camera.Height)
                        {
                            snakePellets[i].worldPosition.X = distance.X < 0 ? camera.position.X + 20 : camera.position.X + camera.Width - 20;
                            snakePellets[i].worldPosition.Y = MathHelper.Lerp(camera.Height / 2, camera.position.Y + camera.Height - 20, distance.Y / screenRatio.Y);
                        }
                        else
                        {

                            snakePellets[i].worldPosition.X = MathHelper.Lerp(camera.Width / 2, camera.position.X + camera.Width - 20, distance.X / screenRatio.X);
                            snakePellets[i].worldPosition.Y = distance.Y < 0 ? camera.position.Y + 20 : camera.position.Y + camera.Height - 20;
                        }

                        camera.draw(spriteBatch, snakePellets[i]);
                        snakePellets[i].worldPosition = oldPos;

Using c#/xna. The snakePellets[i] is the item I want to make a pointer to. I am currently just moving it to where I want the pointer to be, drawing it, then moving it back. This is all assuming the snake pellet is off the screen.

I am getting raw data from stb_image.c for an image I want to load. I am then trying to turn it into a  drawable texture. I haven't been able to find any tutorials on how to load an image from raw data. I have assembled some code from what I could gather from the documentation. The image drawing code works because I use different code to set the same resource view with a dds texture and it works. All the results are S_OK.

int x, y, n;
	unsigned char *data = stbi_load(charFilename, &x, &y, &n, 0);

	D3D11_TEXTURE2D_DESC desc;
	desc.Width = x;
	desc.Height = y;
	desc.MipLevels = 1;
	desc.ArraySize = 1;
	desc.Format = DXGI_FORMAT_R8G8B8A8_UINT;
	desc.SampleDesc.Count = 1;
	desc.SampleDesc.Quality = 0;
	desc.Usage = D3D11_USAGE_DEFAULT;
	desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
	desc.CPUAccessFlags = 0;
	desc.MiscFlags = 0;

	/*D3D11_SUBRESOURCE_DATA subres;
	subres.pSysMem = data;
	subres.SysMemPitch = x * n;
	subres.SysMemSlicePitch = 0;*/

	ID3D11Texture2D *texture2D = 0;

	HRESULT result = device->CreateTexture2D(&desc, NULL, &texture2D);
	if (FAILED(result))
	{
		DebugConsole::writeLine("Failed to create Texture2D");
	}

	D3D11_SHADER_RESOURCE_VIEW_DESC resourceViewDesc;
	resourceViewDesc.Format = desc.Format;
	resourceViewDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
	resourceViewDesc.Texture2D.MostDetailedMip = 0;
	resourceViewDesc.Texture2D.MipLevels = 1;

	result = device->CreateShaderResourceView(texture2D, &resourceViewDesc, &m_texture);
	if (FAILED(result))
	{
		DebugConsole::writeLine("Failed to create resource view");
	}

Is there a better way to do the following?

I tried importing Microsoft.VisualBasic and then using Interaction.InputBox() but it sometimes crashed and otherwise froze the game.

string text = string.Empty;

            if (IsNewKeyPress(Keys.A))
            {
                if (CurrentKeyboardState.IsKeyDown(Keys.LeftShift) || CurrentKeyboardState.IsKeyDown(Keys.RightShift))
                {
                    text += "A";
                }
                else
                {
                    text += "a";
                }
            }
            if (IsNewKeyPress(Keys.B))
            {
                if (CurrentKeyboardState.IsKeyDown(Keys.LeftShift) || CurrentKeyboardState.IsKeyDown(Keys.RightShift))
                {
                    text += "B";
                }
                else
                {
                    text += "b";
                }
            }
           //Through z, plus numbers

From my other thread about loading PNGs, I ended up choosing a library that was distributed as a single C file (stb_image.c). What is the proper way to include this into my project and make it compile? I brought it in with an #include, but it gave duplicate definition errors because it was also compiling the file on its own. Is there a flag I can set on the file to not compile it? Or is there a better way to do it?

I have searched google and I can't seem to find anything relevant. I am trying to load simple PNG images into my directx program. I have DDS images working and they become ID3D11ShaderResourceView when loaded. How can I load PNGs?

I am targeting the windows app store and D3D 11.1, but I would also prefer something more backwards compatible with windows 7.