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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#include "Projectile.h"
#include "Map/MapInfo.h"
#include "Rendering/Colors.h"
#include "Rendering/GL/RenderDataBuffer.hpp"
#include "Sim/Projectiles/ExpGenSpawnableMemberInfo.h"
#include "Sim/Projectiles/ProjectileHandler.h"
#include "Sim/Misc/QuadField.h"
#include "Sim/Misc/TeamHandler.h"
#include "Sim/Units/Unit.h"
#include "Sim/Units/UnitHandler.h"
#include "System/Matrix44f.h"
CR_BIND_DERIVED_INTERFACE(CProjectile, CExpGenSpawnable)
CR_REG_METADATA(CProjectile,
(
CR_MEMBER(synced),
CR_MEMBER(weapon),
CR_MEMBER(piece),
CR_MEMBER(hitscan),
CR_IGNORED(luaDraw),
CR_MEMBER(luaMoveCtrl),
CR_MEMBER(checkCol),
CR_MEMBER(ignoreWater),
CR_IGNORED(createMe),
CR_MEMBER(deleteMe),
CR_MEMBER(castShadow),
CR_MEMBER(drawSorted),
CR_MEMBER_BEGINFLAG(CM_Config),
CR_MEMBER(dir),
CR_MEMBER_ENDFLAG(CM_Config),
CR_MEMBER(drawPos),
CR_MEMBER(myrange),
CR_MEMBER(mygravity),
CR_IGNORED(sortDist),
CR_MEMBER(sortDistOffset),
CR_MEMBER(ownerID),
CR_MEMBER(teamID),
CR_MEMBER(allyteamID),
CR_MEMBER(cegID),
CR_MEMBER(projectileType),
CR_MEMBER(collisionFlags),
CR_IGNORED(renderIndex),
CR_MEMBER(quads)
))
CProjectile::CProjectile()
: myrange(0.0f)
, mygravity((mapInfo != nullptr)? mapInfo->map.gravity: 0.0f)
{
}
CProjectile::CProjectile(
const float3& pos,
const float3& spd,
const CUnit* owner,
bool isSynced,
bool isWeapon,
bool isPiece,
bool isHitScan
): CExpGenSpawnable(pos, spd)
, synced(isSynced)
, weapon(isWeapon)
, piece(isPiece)
, hitscan(isHitScan)
, myrange(/*params.weaponDef->range*/0.0f)
, mygravity((mapInfo != nullptr)? mapInfo->map.gravity: 0.0f)
{
SetRadiusAndHeight(1.7f, 0.0f);
Init(owner, ZeroVector);
}
CProjectile::~CProjectile()
{
if (!synced)
return;
quadField.RemoveProjectile(this);
}
void CProjectile::Init(const CUnit* owner, const float3& offset)
{
if (owner != nullptr) {
// must be set before the AddProjectile call
ownerID = owner->id;
teamID = owner->team;
allyteamID = teamHandler.IsValidTeam(teamID)? teamHandler.AllyTeam(teamID): -1;
}
if (!hitscan) {
SetPosition(pos + offset);
SetVelocityAndSpeed(speed);
}
// NOTE:
// new CWeapon- and CPieceProjectile*'s add themselves
// to CProjectileHandler (other code needs to be able
// to dyna-cast CProjectile*'s to those derived types,
// and adding them here would throw away too much RTTI)
if (!weapon && !piece)
projectileHandler.AddProjectile(this);
if (synced && !weapon)
quadField.AddProjectile(this);
}
void CProjectile::Update()
{
if (luaMoveCtrl)
return;
SetVelocityAndSpeed(speed + (UpVector * mygravity));
SetPosition(pos + speed);
}
void CProjectile::Delete()
{
deleteMe = true;
checkCol = false;
}
void CProjectile::DrawOnMinimap(GL::RenderDataBufferC* va)
{
va->SafeAppend({pos , color4::whiteA});
va->SafeAppend({pos + speed, color4::whiteA});
}
CUnit* CProjectile::owner() const {
// NOTE:
// this death dependency optimization using "ownerID" is logically flawed:
// because ID's are reused it could return a unit that is not the original
// owner (unlikely however unless ID's get recycled very rapidly)
return (unitHandler.GetUnit(ownerID));
}
CMatrix44f CProjectile::GetTransformMatrix(float posOffsetMult) const {
float3 xdir;
float3 ydir;
if (math::fabs(dir.y) < 0.95f) {
xdir = dir.cross(UpVector);
xdir.SafeANormalize();
} else {
xdir.x = 1.0f;
}
ydir = xdir.cross(dir);
return (CMatrix44f(drawPos + (dir * radius * 0.9f * posOffsetMult), -xdir, ydir, dir));
}
bool CProjectile::GetMemberInfo(SExpGenSpawnableMemberInfo& memberInfo)
{
if (CExpGenSpawnable::GetMemberInfo(memberInfo))
return true;
CHECK_MEMBER_INFO_FLOAT3(CProjectile, dir)
return false;
}
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