Contents
How can I draw rectangles in SDL2?
Along with the new 2D hardware accelerated API in SDL2, we can draw primitive shapes like rectangles. Two functions, SDL_RenderDrawRect () and SDL_RenderFillRect () are functions that can be used to draw rectangles on the screen.
How is hardware rendering done in SDL2?
In SDL2, hardware rendering is done via structures called SDL_Textureand SDL_Renderer. Texture is a general term used for the resources that are going to be used by the GPU for rendering purposes. SDL_Texturedon’t have any methods to get the image for rendering. In order to do that, we use SDL_Surface.
How to simulate reflections on a 1D surface?
For (simple) reflections on a 1d Surface we need to create “ghost” wave sources to simulate reflections, this is more complicated at 2d surfaces and it is one of the limitations of this simple approach Now i hit a hard wall, this is the most complicated solution.
What’s the SDL library for drawing an image?
Fortunately, SDL provides us a library called SDL_image herewhich is capable of loading many types of images. Just download it and equip it with your project like you did before, with the base SDL2 library.
How to dynamically allocate a struct in SDL?
SDL is written in C so SDL_Rect is just a simple struct. To dynamically allocate it you’d have to use new otherwise the compiler will interpret your code as a call to a regular function called SDL_Rect that returns a SDL_Rect*.
How to roll up multiple rows into one row?
Rolling up data from multiple rows into a single row may be necessary for concatenating data, reporting, exchanging data between systems and more. This can be accomplished by: The solution proposed in this tip explores two SQL Server commands that can help us achieve the expected results. The SQL Server T-SQL commands used are STUFF and FOR XML.
Is there a way to set the location of a BMP in SDL?
I’m working on some SDL stuff and I’ve run into some trouble when trying to set the location of a loaded BMP. Here’s the code.