Drawing Sprites To The Screen
Dragon Zap Instructor
Daniel McCarthy is a seasoned software engineer, boasting an impressive career spanning over 14 years in the industry. Holding a Master's Degree in Advanced Computer Science from Cardiff Metropolitan University, his broad spectrum of experience encompasses everything from web development to complex compiler and interpreter development. Daniel has honed his skills in bootloader and kernel development. In testament to his proficiency in the field, he has designed two proprietary programming languages: Craft, a general-purpose language, and Marble, a web-focused language akin to PHP. Moreover, he has successfully developed compilers for the C programming language. A testament to his versatility, Daniel demonstrates proficiency in an extensive list of programming languages that includes C, C++, Java, x86 Assembly language, PIC assembly, SQL, PHP, HTML5, JavaScript, CSS, and of course, his own creations, Craft and Marble. His professional portfolio also includes the development of Linux kernel modules, a task he has executed with proficiency in a professional context. Currently, Daniel is channeling his wealth of experience and expertise into the education sector, with the aim of nurturing the next generation of professional software engineers.
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Questions (1)
Thomas Treffry
1 year ago
Please may you provide more information regarding the `const char* sprite` argument in `chip8_screen_draw_sprite`? I am a little confused by this. When we call `chip8_screen_draw_sprite` from `main.c`, we are passing in a pointer to the first element of the memory array, `&chip8.memory.memory[0x00]`. Due to the `memcpy` call in `chip8_init`, the first element of the chip8.memory.memory array should be the same as the first element of the `chip8_default_character_set`. Does that make sense? If so, the value of the `sprite` argument would be `0xf0`. However, I don't think that is accurate because we then do an index lookup `char c = sprite[ly]`. How does this work and where am I going wrong with my logic?
Daniel McCarthy
1 year ago
Hi, I don't quite understand what your asking me can you break down a little further your problem
Thomas Treffry
1 year ago
Hi Daniel, I dug into this over Christmas and identified a knowledge gap with C pointers. Now that I understand pointers, the code makes sense. Thanks for a great course, I am enjoying it!
Daniel McCarthy
1 year ago
Your very welcome Thomas all the best please reach out if theirs anything else