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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#include "TorpedoProjectile.h"
#include "Game/Camera.h"
#include "Game/GameHelper.h"
#include "Map/Ground.h"
#include "Rendering/ProjectileDrawer.h"
#include "Rendering/GL/VertexArray.h"
#include "Rendering/Textures/TextureAtlas.h"
#include "Sim/Projectiles/ProjectileHandler.h"
#include "Sim/Projectiles/Unsynced/BubbleProjectile.h"
#include "Sim/Projectiles/Unsynced/SmokeTrailProjectile.h"
#include "Sim/Units/Unit.h"
#include "Sim/Weapons/WeaponDef.h"
#include "System/myMath.h"
#ifdef TRACE_SYNC
#include "System/Sync/SyncTracer.h"
#endif
CR_BIND_DERIVED(CTorpedoProjectile, CWeaponProjectile, (ProjectileParams()))
CR_REG_METADATA(CTorpedoProjectile,(
CR_SETFLAG(CF_Synced),
CR_MEMBER(tracking),
CR_MEMBER(maxSpeed),
CR_MEMBER(areaOfEffect),
CR_MEMBER(nextBubble),
CR_MEMBER(texx),
CR_MEMBER(texy)
))
CTorpedoProjectile::CTorpedoProjectile(const ProjectileParams& params): CWeaponProjectile(params)
, tracking(0.0f)
, maxSpeed(0.0f)
, areaOfEffect(0.0f)
, nextBubble(4)
, texx(0.0f)
, texy(0.0f)
{
projectileType = WEAPON_TORPEDO_PROJECTILE;
tracking = params.tracking;
if (weaponDef != NULL) {
maxSpeed = weaponDef->projectilespeed;
areaOfEffect = weaponDef->damageAreaOfEffect;
}
drawRadius = maxSpeed * 8;
texx = projectileDrawer->torpedotex->xstart - (projectileDrawer->torpedotex->xend - projectileDrawer->torpedotex->xstart) * 0.5f;
texy = projectileDrawer->torpedotex->ystart - (projectileDrawer->torpedotex->yend - projectileDrawer->torpedotex->ystart) * 0.5f;
#ifdef TRACE_SYNC
tracefile << "New projectile: ";
tracefile << pos.x << " " << pos.y << " " << pos.z << " " << speed.x << " " << speed.y << " " << speed.z << "\n";
#endif
}
void CTorpedoProjectile::Update()
{
// tracking only works when we are underwater
if (!weaponDef->submissile && pos.y > 0.0f) {
if (!luaMoveCtrl) {
// must update dir and speed.w here
SetVelocityAndSpeed(speed + (UpVector * mygravity));
}
} else {
if (--ttl > 0) {
if (!luaMoveCtrl) {
float3 targetVel;
if (speed.w < maxSpeed)
speed.w += std::max(0.2f, tracking);
if (target != NULL) {
const CSolidObject* so = dynamic_cast<const CSolidObject*>(target);
const CWeaponProjectile* po = dynamic_cast<const CWeaponProjectile*>(target);
targetPos = target->pos;
if (so != NULL) {
targetPos = so->aimPos;
targetVel = so->speed;
if (owner() != NULL && pos.SqDistance(so->aimPos) > Square(150.0f)) {
const CUnit* u = dynamic_cast<const CUnit*>(so);
if (u != NULL) {
targetPos = u->GetErrorPos(owner()->allyteam, true);
}
}
}
if (po != NULL) {
targetVel = po->speed;
}
}
if (!weaponDef->submissile && targetPos.y > 0.0f) {
targetPos.y = 0.0f;
}
const float3 targetLeadVec = targetVel * (pos.distance(targetPos) / maxSpeed) * 0.7f;
const float3 targetLeadDir = (targetPos + targetLeadVec - pos).Normalize();
float3 targetDirDif = targetLeadDir - dir;
if (targetDirDif.Length() < tracking) {
dir = targetLeadDir;
} else {
// <tracking> is the projectile's turn-rate
targetDirDif = (targetDirDif - (dir * targetDirDif.dot(dir))).SafeNormalize();
dir = (dir + (targetDirDif * tracking)).SafeNormalize();
}
// do not need to update dir or speed.w here
CWorldObject::SetVelocity(dir * speed.w);
}
explGenHandler->GenExplosion(cegID, pos, speed, ttl, areaOfEffect, 0.0f, NULL, NULL);
} else {
if (!luaMoveCtrl) {
// must update dir and speed.w here
SetVelocityAndSpeed((speed * 0.98f) + (UpVector * mygravity));
}
}
}
if (!luaMoveCtrl) {
SetPosition(pos + speed);
}
if (pos.y < -2.0f) {
--nextBubble;
if (nextBubble == 0) {
nextBubble = 1 + (int) (gs->randFloat() * 1.5f);
const float3 pspeed = (gs->randVector() * 0.1f) + float3(0.0f, 0.2f, 0.0f);
new CBubbleProjectile(
owner(),
pos + gs->randVector(), pspeed, 40 + gs->randFloat() * GAME_SPEED,
1 + gs->randFloat() * 2, 0.01f, 0.3f + gs->randFloat() * 0.3f
);
}
}
UpdateGroundBounce();
UpdateInterception();
}
void CTorpedoProjectile::Draw()
{
if (model) {
// do not draw if a 3D model has been defined for us
return;
}
inArray = true;
unsigned char col[4];
col[0] = 60;
col[1] = 60;
col[2] = 100;
col[3] = 255;
float3 r = dir.cross(UpVector);
if (r.Length() < 0.001f) {
r = float3(RgtVector);
}
r.Normalize();
const float3 u = dir.cross(r);
const float h = 12;
const float w = 2;
va->EnlargeArrays(32, 0, VA_SIZE_TC);
va->AddVertexQTC(drawPos + (r * w), texx, texy, col);
va->AddVertexQTC(drawPos + (u * w), texx, texy, col);
va->AddVertexQTC(drawPos + (u * w) + (dir * h), texx, texy, col);
va->AddVertexQTC(drawPos + (r * w) + (dir * h), texx, texy, col);
va->AddVertexQTC(drawPos + (u * w), texx, texy, col);
va->AddVertexQTC(drawPos - (r * w), texx, texy, col);
va->AddVertexQTC(drawPos - (r * w) + (dir * h), texx, texy, col);
va->AddVertexQTC(drawPos + (u * w) + (dir * h), texx, texy, col);
va->AddVertexQTC(drawPos - (r * w), texx, texy, col);
va->AddVertexQTC(drawPos - (u * w), texx, texy, col);
va->AddVertexQTC(drawPos - (u * w) + (dir * h), texx, texy, col);
va->AddVertexQTC(drawPos - (r * w) + (dir * h), texx, texy, col);
va->AddVertexQTC(drawPos - (u * w), texx, texy, col);
va->AddVertexQTC(drawPos + (r * w), texx, texy, col);
va->AddVertexQTC(drawPos + (r * w) + (dir * h), texx, texy, col);
va->AddVertexQTC(drawPos - (u * w) + (dir * h), texx, texy, col);
va->AddVertexQTC(drawPos + (r * w) + (dir * h), texx, texy, col);
va->AddVertexQTC(drawPos + (u * w) + (dir * h), texx, texy, col);
va->AddVertexQTC(drawPos + (dir * h * 1.2f), texx, texy, col);
va->AddVertexQTC(drawPos + (dir * h * 1.2f), texx, texy, col);
va->AddVertexQTC(drawPos + (u * w) + (dir * h), texx, texy, col);
va->AddVertexQTC(drawPos - (r * w) + (dir * h), texx, texy, col);
va->AddVertexQTC(drawPos + (dir * h * 1.2f), texx, texy, col);
va->AddVertexQTC(drawPos + (dir * h * 1.2f), texx, texy, col);
va->AddVertexQTC(drawPos - (r * w) + (dir * h), texx, texy, col);
va->AddVertexQTC(drawPos - (u * w) + (dir * h), texx, texy, col);
va->AddVertexQTC(drawPos + (dir * h * 1.2f), texx, texy, col);
va->AddVertexQTC(drawPos + (dir * h * 1.2f), texx, texy, col);
va->AddVertexQTC(drawPos - (u * w) + (dir * h), texx, texy, col);
va->AddVertexQTC(drawPos + (r * w) + (dir * h), texx, texy, col);
va->AddVertexQTC(drawPos + (dir * h * 1.2f), texx, texy, col);
va->AddVertexQTC(drawPos + (dir * h * 1.2f), texx, texy, col);
}
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