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Diffstat (limited to 'Stars45/RLoc.cpp')
-rw-r--r-- | Stars45/RLoc.cpp | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/Stars45/RLoc.cpp b/Stars45/RLoc.cpp new file mode 100644 index 0000000..e5addc4 --- /dev/null +++ b/Stars45/RLoc.cpp @@ -0,0 +1,112 @@ +/* Starshatter OpenSource Distribution + Copyright (c) 1997-2004, Destroyer Studios LLC. + All Rights Reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + * Neither the name "Destroyer Studios" nor the names of its contributors + may be used to endorse or promote products derived from this software + without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. + + SUBSYSTEM: Stars.exe + FILE: RLoc.cpp + AUTHOR: John DiCamillo + + + OVERVIEW + ======== + Navigation Point class implementation +*/ + +#include "MemDebug.h" +#include "RLoc.h" +#include "Random.h" + +// +----------------------------------------------------------------------+ + +RLoc::RLoc() + : rloc(0), dex(0), dex_var(5.0e3f), az(0), az_var(3.1415f), el(0), el_var(0.1f) +{ } + +RLoc::RLoc(const Point& l, double d, double dv) + : loc(l), base_loc(l), rloc(0), dex((float) d), dex_var((float) dv), + az(0), az_var(3.1415f), el(0), el_var(0.1f) +{ } + +RLoc::RLoc(RLoc* l, double d, double dv) + : rloc(l), dex((float) d), dex_var((float) dv), + az(0), az_var(3.1415f), el(0), el_var(0.1f) +{ } + +RLoc::RLoc(const RLoc& r) + : loc(r.loc), base_loc(r.base_loc), rloc(r.rloc), + dex(r.dex), dex_var(r.dex_var), + az(r.az), az_var(r.az_var), + el(r.el), el_var(r.el_var) +{ } + +RLoc::~RLoc() +{ } + +// +----------------------------------------------------------------------+ + +const Point& +RLoc::Location() +{ + if (rloc || dex > 0) Resolve(); + return loc; +} + +// +----------------------------------------------------------------------+ + +void +RLoc::Resolve() +{ + if (rloc) { + base_loc = rloc->Location(); + rloc = 0; + } + + if (dex > 0) { + double d = dex + Random(-dex_var, dex_var); + double a = az + Random(-az_var, az_var); + double e = el + Random(-el_var, el_var); + + Point p = Point(d * sin(a), + d * -cos(a), + d * sin(e)); + + loc = base_loc + p; + dex = 0; + } + else { + loc = base_loc; + } +} + +// +----------------------------------------------------------------------+ + +void +RLoc::SetBaseLocation(const Point& l) +{ + base_loc = l; + loc = l; +} |