diff --git a/src/content_mapblock.cpp b/src/content_mapblock.cpp | |
index ad819e7..ff8ef52 100644 | |
--- a/src/content_mapblock.cpp | |
+++ b/src/content_mapblock.cpp | |
@@ -492,15 +492,15 @@ void mapblock_mesh_generate_special(MeshMakeData *data, | |
// -Z towards +Z, thus the direction is +Z. | |
// Rotate texture to make animation go in flow direction | |
// Positive if liquid moves towards +Z | |
- int dz = (corner_levels[side_corners[2][0]] + | |
- corner_levels[side_corners[2][1]] < | |
- corner_levels[side_corners[3][0]] + | |
- corner_levels[side_corners[3][1]]); | |
+ int dz = (corner_levels[side_corners[3][0]] + | |
+ corner_levels[side_corners[3][1]]) - | |
+ (corner_levels[side_corners[2][0]] + | |
+ corner_levels[side_corners[2][1]]); | |
// Positive if liquid moves towards +X | |
- int dx = (corner_levels[side_corners[0][0]] + | |
- corner_levels[side_corners[0][1]] < | |
- corner_levels[side_corners[1][0]] + | |
- corner_levels[side_corners[1][1]]); | |
+ int dx = (corner_levels[side_corners[1][0]] + | |
+ corner_levels[side_corners[1][1]]) - | |
+ (corner_levels[side_corners[0][0]] + | |
+ corner_levels[side_corners[0][1]]); | |
// -X | |
if(-dx >= abs(dz)) | |
{ |
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