Function CUpdateShadowImpl

Source/Objects/movementobject.cpp:3569–3636

}

static void CUpdateShadowImpl(
    MovementObject* mo,
    int& shadow_id,
    int& lf_shadow_id,
    int& rf_shadow_id,
    const CScriptArrayWrapper<BoneTransform>& skeleton_bind_transforms) {
    MovementObject& this_mo = *mo;
    RiggedObject& rigged_object = *this_mo.rigged_object();
    Skeleton& skeleton = rigged_object.skeleton();

    int bone = ASIKBoneStart(&skeleton, "torso");
    BoneTransform transform = rigged_object.display_bone_matrices[bone];
    BoneTransform bind_matrix = invert(skeleton_bind_transforms[bone]);
    transform = transform;
    vec3 torso = transform * skeleton.points[skeleton.bones[bone].points[0]];

    bone = ASIKBoneStart(&skeleton, "head");
    transform = rigged_object.display_bone_matrices[bone];
    bind_matrix = invert(skeleton_bind_transforms[bone]);
    transform = transform;
    vec3 head = transform * skeleton.points[skeleton.bones[bone].points[0]];

    bone = ASIKBoneStart(&skeleton, "left_leg");
    transform = rigged_object.display_bone_matrices[bone];
    bind_matrix = invert(skeleton_bind_transforms[bone]);
    transform = transform;
    vec3 left_foot = transform * skeleton.points[skeleton.bones[bone].points[0]];

    bone = ASIKBoneStart(&skeleton, "right_leg");
    transform = rigged_object.display_bone_matrices[bone];
    bind_matrix = invert(skeleton_bind_transforms[bone]);
    transform = transform;
    vec3 right_foot = transform * skeleton.points[skeleton.bones[bone].points[0]];

    {
        if (shadow_id == -1) {
            shadow_id = ASCreateObject("Data/Objects/Decals/blob_shadow.xml", true);
        }

        Object* shadow_obj = ReadObjectFromID(shadow_id);
        vec3 scale = vec3(1.5f, max(1.5f, distance((left_foot + right_foot) * 0.5f, head) * 2.0f), 1.5f);
        shadow_obj->SetScale(scale);

        shadow_obj->SetTranslation(torso + vec3(0.0f, -0.3f, 0.0f));
    }

    {
        if (lf_shadow_id == -1) {
            lf_shadow_id = ASCreateObject("Data/Objects/Decals/blob_shadow.xml", true);
        }

        Object* shadow_obj = ReadObjectFromID(lf_shadow_id);

        shadow_obj->SetTranslation(left_foot + vec3(0.0f));
        shadow_obj->SetScale(vec3(0.4f));
    }

    {