I would've assumed this was something used a lot, but I couldn't find anything. Is there a way to copy sprite flipped horizontally?
I'm not sure if there is an inbuilt way to do this, but you could probably just manually flip the data, which is what the OS would do internally if there was a Syscall for this.
hmm.. It just turned out all black for me. Is this what you basically meant though?
Code:
Code:
#include <fxcg/display.h>
#include <fxcg/keyboard.h>
#include <stdlib.h>
#include <stddef.h>
color_t* flip_horizontal(color_t* b, size_t size) {
color_t* flipped = malloc(size * sizeof(color_t));
for (size_t i = 0; i < size; i++) {
flipped[i] = b[size - i - 1];
}
return flipped;
}
int main() {
Bdisp_EnableColor(1);
EnableStatusArea(3);
Bdisp_AllClr_VRAM();
// Original
VRAM_CopySprite(sprite, 167, 101, 25, 7);
// Flipped Horizontally
size_t size = sizeof(sprite) / sizeof(color_t);
color_t* flipped = flip_horizontal(sprite, size);
VRAM_CopySprite(flipped, 167, 131, 25, 7);
Bdisp_PutDisp_DD();
int key;
while(1)
GetKey(&key);
return 0;
}
QuietRiot wrote:
hmm.. It just turned out all black for me. Is this what you basically meant though?
Code:
Code:
#include <fxcg/display.h>
#include <fxcg/keyboard.h>
#include <stdlib.h>
#include <stddef.h>
color_t* flip_horizontal(color_t* b, size_t size) {
color_t* flipped = malloc(size * sizeof(color_t));
for (size_t i = 0; i < size; i++) {
flipped[i] = b[size - i - 1];
}
return flipped;
}
int main() {
Bdisp_EnableColor(1);
EnableStatusArea(3);
Bdisp_AllClr_VRAM();
// Original
VRAM_CopySprite(sprite, 167, 101, 25, 7);
// Flipped Horizontally
size_t size = sizeof(sprite) / sizeof(color_t);
color_t* flipped = flip_horizontal(sprite, size);
VRAM_CopySprite(flipped, 167, 131, 25, 7);
Bdisp_PutDisp_DD();
int key;
while(1)
GetKey(&key);
return 0;
}
Yeah, that's what I meant. I don't have a huge amount of experience with sprites but it seems like this should work. A few things (which probably won't help) which I would note:
- The malloc-ed flip_horizontal return was not freed.
- Make sure that you are defining the sprite variable. You probably are, it's just not in the code snippet.
You could also copy the VRAM_CopySprite routine (from here) and change it there.
Other than that, I am probably of no help whatsoever.
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