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Add transform support to deal with Bullets centering of shapes

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This commit is contained in:
Bastiaan Olij 2019-04-25 13:03:48 +10:00
parent 4bb0df7060
commit e4dea0595a
5 changed files with 30 additions and 17 deletions
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16
scene/resources/height_map_shape.cpp
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@ -44,16 +44,6 @@ Vector<Vector3> HeightMapShape::_gen_debug_mesh_lines() {
PoolRealArray::Read r = map_data.read();
// Bullet centers our heightmap, this is really counter intuitive but for now we'll adjust our debug shape accordingly:
// https://github.com/bulletphysics/bullet3/blob/master/src/BulletCollision/CollisionShapes/btHeightfieldTerrainShape.h#L33
float min = r[0];
float max = r[0];
for (int i = 0; i < map_data.size(); i++) {
if (min > r[i]) min = r[i];
if (max < r[i]) max = r[i];
};
float center = min + ((max - min) * 0.5);
// reserve some memory for our points..
points.resize(((map_width - 1) * map_depth * 2) + (map_width * (map_depth - 1) * 2));
@ -64,16 +54,16 @@ Vector<Vector3> HeightMapShape::_gen_debug_mesh_lines() {
Vector3 height(start.x, 0.0, start.y);
for (int w = 0; w < map_width; w++) {
height.y = r[r_offset++] - center;
height.y = r[r_offset++];
if (w != map_width - 1) {
points.write[w_offset++] = height;
points.write[w_offset++] = Vector3(height.x + 1.0, r[r_offset] - center, height.z);
points.write[w_offset++] = Vector3(height.x + 1.0, r[r_offset], height.z);
}
if (d != map_depth - 1) {
points.write[w_offset++] = height;
points.write[w_offset++] = Vector3(height.x, r[r_offset + map_width - 1] - center, height.z + 1.0);
points.write[w_offset++] = Vector3(height.x, r[r_offset + map_width - 1], height.z + 1.0);
}
height.x += 1.0;