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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#include <cassert>
#include "MoveType.h"
#include "Map/Ground.h"
#include "Sim/Misc/QuadField.h"
#include "Sim/Units/Unit.h"
#include "Sim/Units/UnitDef.h"
#include "System/myMath.h"
#include "System/Sync/HsiehHash.h"
CR_BIND_DERIVED_INTERFACE(AMoveType, CObject)
CR_REG_METADATA(AMoveType, (
CR_MEMBER(owner),
CR_MEMBER(goalPos),
CR_MEMBER(oldPos),
CR_MEMBER(oldSlowUpdatePos),
CR_MEMBER(maxSpeed),
CR_MEMBER(maxSpeedDef),
CR_MEMBER(maxWantedSpeed),
CR_MEMBER(maneuverLeash),
CR_MEMBER(useHeading),
CR_MEMBER(progressState)
))
AMoveType::AMoveType(CUnit* owner):
owner(owner),
goalPos(owner? owner->pos: ZeroVector),
oldPos(owner? owner->pos: ZeroVector),
oldSlowUpdatePos(oldPos),
useHeading(true),
progressState(Done),
maxSpeed(owner? owner->unitDef->speed / GAME_SPEED : 0.0f),
maxSpeedDef(owner? owner->unitDef->speed / GAME_SPEED : 0.0f),
maxWantedSpeed(owner? owner->unitDef->speed / GAME_SPEED : 0.0f),
maneuverLeash(500.0f)
{
}
void AMoveType::SlowUpdate()
{
if (owner->pos != oldSlowUpdatePos) {
oldSlowUpdatePos = owner->pos;
const int newMapSquare = CGround::GetSquare(owner->pos);
if (newMapSquare != owner->mapSquare) {
owner->mapSquare = newMapSquare;
if (!owner->UsingScriptMoveType()) {
if ((owner->IsOnGround() || owner->IsInWater()) && owner->unitDef->IsGroundUnit()) {
// always (re-)add us to occupation map if we moved
// (since our last SlowUpdate) and are on the ground
// NOTE: ships are ground units but not on the ground
owner->Block();
}
}
}
quadField->MovedUnit(owner);
}
}
void AMoveType::KeepPointingTo(CUnit* unit, float distance, bool aggressive)
{
KeepPointingTo(float3(unit->pos), distance, aggressive);
}
float AMoveType::CalcStaticTurnRadius() const {
// calculate a rough turn radius (not based on current speed)
const float turnFrames = SPRING_CIRCLE_DIVS / std::max(owner->unitDef->turnRate, 1.0f);
const float turnRadius = (maxSpeedDef * turnFrames) / (PI + PI);
return turnRadius;
}
bool AMoveType::SetMemberValue(unsigned int memberHash, void* memberValue) {
#define MEMBER_CHARPTR_HASH(memberName) HsiehHash(memberName, strlen(memberName), 0)
#define MEMBER_LITERAL_HASH(memberName) HsiehHash(memberName, sizeof(memberName) - 1, 0)
#define MAXSPEED_MEMBER_IDX 0
#define MAXWANTEDSPEED_MEMBER_IDX 1
#define MANEUVERLEASH_MEMBER_IDX 2
static const unsigned int floatMemberHashes[] = {
MEMBER_LITERAL_HASH( "maxSpeed"),
MEMBER_LITERAL_HASH( "maxWantedSpeed"),
MEMBER_LITERAL_HASH( "maneuverLeash"),
};
#undef MEMBER_CHARPTR_HASH
#undef MEMBER_LITERAL_HASH
/*
// unordered_map etc. perform dynallocs, so KISS here
float* floatMemberPtrs[] = {
&maxSpeed,
&maxWantedSpeed,
};
*/
// special cases
if (memberHash == floatMemberHashes[MAXSPEED_MEMBER_IDX]) {
SetMaxSpeed((*reinterpret_cast<float*>(memberValue)) / GAME_SPEED);
return true;
}
if (memberHash == floatMemberHashes[MAXWANTEDSPEED_MEMBER_IDX]) {
SetWantedMaxSpeed((*reinterpret_cast<float*>(memberValue)) / GAME_SPEED);
return true;
}
if (memberHash == floatMemberHashes[MANEUVERLEASH_MEMBER_IDX]) {
SetManeuverLeash(*reinterpret_cast<float*>(memberValue));
return true;
}
return false;
}
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