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changed 0b(...) constants into (1 << n) equivalents

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0b(...) isn't supported by GCC :(
This commit is contained in:
Aaron Griffith
2011-03-24 19:41:08 -04:00
parent 4f5bf93b49
commit 2d64d2d84d
1 changed files with 9 additions and 8 deletions
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17
src/iterate.c
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@@ -69,6 +69,7 @@ unsigned char
* This uses a binary number of 4 digits to encode the info.
* The encode is:
*
* 0b1234:
* Bit: 1 2 3 4
* Side: +x +y -x -y
* Values: bit = 0 -> The corresponding side block has different blockid
@@ -82,48 +83,48 @@ unsigned char
if (state->x == 15) { /* +x direction */
if (state->up_right_blocks != Py_None) { /* just in case we are in the end of the world */
if (getArrayByte3D(state->up_right_blocks, 0, state->y, state->z) == blockid) {
pdata = pdata|0b1000;
pdata = pdata|(1 << 3);
}
}
} else {
if (getArrayByte3D(state->blocks, state->x + 1, state->y, state->z) == blockid) {
pdata = pdata|0b1000;
pdata = pdata|(1 << 3);
}
}
if (state->y == 15) { /* +y direction*/
if (state->right_blocks != Py_None) {
if (getArrayByte3D(state->right_blocks, state->x, 0, state->z) == blockid) {
pdata = pdata|0b0100;
pdata = pdata|(1 << 2);
}
}
} else {
if (getArrayByte3D(state->blocks, state->x, state->y + 1, state->z) == blockid) {
pdata = pdata|0b0100;
pdata = pdata|(1 << 2);
}
}
if (state->x == 0) { /* -x direction*/
if (state->left_blocks != Py_None) {
if (getArrayByte3D(state->left_blocks, 15, state->y, state->z) == blockid) {
pdata = pdata|0b0010;
pdata = pdata|(1 << 1);
}
}
} else {
if (getArrayByte3D(state->blocks, state->x - 1, state->y, state->z) == blockid) {
pdata = pdata|0b0010;
pdata = pdata|(1 << 1);
}
}
if (state->y == 0) { /* -y direction */
if (state->up_left_blocks != Py_None) {
if (getArrayByte3D(state->up_left_blocks, state->x, 15, state->z) == blockid) {
pdata = pdata|0b0001;
pdata = pdata|(1 << 0);
}
}
} else {
if (getArrayByte3D(state->blocks, state->x, state->y - 1, state->z) == blockid) {
pdata = pdata|0b0001;
pdata = pdata|(1 << 0);
}
}