ctdo
/
borgware-2d
16
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

fixed mapping bug in moire.c

This commit is contained in:
Christian Kroll 2014-05-15 11:11:56 +02:00
parent 4eefbd05d3
commit 0546f195ef
1 changed files with 11 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
src/animations/moire.c
View File

@ -45,25 +45,25 @@ void moire(void)
// walk around the border; do that by mapping a linear increasing value // walk around the border; do that by mapping a linear increasing value
// to appropriate screen coordinates // to appropriate screen coordinates
// first pixel is between top right and top left corner // pixel is between top right and top left corner
if (pos < NUM_COLS) if (pos < (NUM_COLS - 1))
{ {
p1.x = pos; p1.x = pos + 1;
} }
// first pixel is between top left and bottom left corner // pixel is between top left and bottom left corner
else if (pos < (NUM_COLS + NUM_ROWS - 1)) else if (pos < (NUM_COLS + NUM_ROWS - 2))
{ {
p1.y = pos - (NUM_COLS - 1); p1.y = pos - (NUM_COLS - 2);
} }
// first pixel is between bottom left and bottom right corner // pixel is between bottom left and bottom right corner
else if (pos < (2 * NUM_COLS + NUM_ROWS - 2)) else if (pos < (2 * NUM_COLS + NUM_ROWS - 3))
{ {
p1.x = 2 * NUM_COLS + NUM_ROWS - 3 - pos; p1.x = 2 * NUM_COLS + NUM_ROWS - 4 - pos;
} }
// first pixel is between bottom right and top left corner // pixel is between bottom right and top left corner
else else
{ {
p1.y = 3 * NUM_COLS + NUM_ROWS - 4 - pos; p1.y = 2 * NUM_COLS + 2 * NUM_ROWS - 5 - pos;
} }
// second pixel in opposite direction // second pixel in opposite direction