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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#include "FPSUnitController.h"
#include "UI/MouseHandler.h"
#include "Game/Camera.h"
#include "Game/GlobalUnsynced.h"
#include "Game/TraceRay.h"
#include "Map/Ground.h"
#include "Sim/Features/Feature.h"
#include "Sim/Misc/TeamHandler.h"
#include "Sim/Units/Unit.h"
#include "Sim/Units/Scripts/CobInstance.h"
#include "Sim/Weapons/Weapon.h"
#include "System/SpringMath.h"
#include "Net/Protocol/NetProtocol.h"
#include <SDL_mouse.h>
FPSUnitController::FPSUnitController()
: targetUnit(nullptr)
, controllee(nullptr)
, controller(nullptr)
, viewDir(FwdVector)
, targetPos(FwdVector)
, targetDist(1000.0f)
, forward(false)
, back(false)
, left(false)
, right(false)
, mouse1(false)
, mouse2(false)
, oldHeading(0)
, oldPitch(0)
, oldState(255)
, oldDCpos(ZeroVector)
{
}
void FPSUnitController::Update() {
const float3 relPos = controllee->script->GetPiecePos(controllee->script->AimFromWeapon(0));
const float3 absPos = controllee->GetObjectSpacePos(relPos) + (UpVector * 7.0f);
oldDCpos = absPos;
CUnit* hitUnit = nullptr;
CFeature* hitFeature = nullptr;
// target-lock onto any unit (allied, enemy, neutral, ...) that is visible
// SYNCED, do NOT use GuiTraceRay which also checks gu->spectatingFullView
float hitDist = TraceRay::TraceRay(absPos, viewDir, controllee->maxRange, ~Collision::NOUNITS, controllee, hitUnit, hitFeature);
if (hitUnit != nullptr && hitUnit->IsInLosForAllyTeam(controllee->allyteam)) {
targetUnit = hitUnit;
targetDist = hitDist;
targetPos = hitUnit->pos;
if (!mouse2)
controllee->AttackUnit(hitUnit, true, true, true);
return;
}
targetUnit = nullptr;
targetDist = (hitDist = std::min(hitDist, controllee->maxRange * 0.95f));
targetPos = absPos + viewDir * targetDist;
if (mouse2)
return;
// if a target position is in range, but not on the ground,
// projectiles can gain extra flighttime and travel further
//
// NOTE: CWeapon::AttackGround checks range via TryTarget
if ((targetPos.y - CGround::GetHeightReal(targetPos.x, targetPos.z)) > SQUARE_SIZE)
return;
controllee->AttackGround(targetPos, true, true, true);
}
void FPSUnitController::RecvStateUpdate(const unsigned char* buf) {
forward = !!(buf[2] & (1 << 0));
back = !!(buf[2] & (1 << 1));
left = !!(buf[2] & (1 << 2));
right = !!(buf[2] & (1 << 3));
mouse1 = !!(buf[2] & (1 << 4));
const bool newMouse2 = !!(buf[2] & (1 << 5));
if (!mouse2 && newMouse2 && controllee != nullptr)
controllee->AttackUnit(nullptr, true, true, true);
mouse2 = newMouse2;
const short int h = *((short int*) &buf[3]);
const short int p = *((short int*) &buf[5]);
viewDir = GetVectorFromHAndPExact(h, p);
}
void FPSUnitController::SendStateUpdate() {
if (!gu->fpsMode)
return;
const bool* camMoveState = camera->GetMovState();
const CMouseHandler::ButtonPressEvt* mouseButtons = mouse->buttons;
unsigned char state = 0;
state |= ((camMoveState[CCamera::MOVE_STATE_FWD]) * (1 << 0));
state |= ((camMoveState[CCamera::MOVE_STATE_BCK]) * (1 << 1));
state |= ((camMoveState[CCamera::MOVE_STATE_LFT]) * (1 << 2));
state |= ((camMoveState[CCamera::MOVE_STATE_RGT]) * (1 << 3));
state |= ((mouseButtons[SDL_BUTTON_LEFT ].pressed) * (1 << 4));
state |= ((mouseButtons[SDL_BUTTON_RIGHT].pressed) * (1 << 5));
const shortint2 hp = GetHAndPFromVector(camera->GetDir());
if (hp.x != oldHeading || hp.y != oldPitch || state != oldState) {
oldHeading = hp.x;
oldPitch = hp.y;
oldState = state;
clientNet->Send(CBaseNetProtocol::Get().SendDirectControlUpdate(gu->myPlayerNum, state, hp.x, hp.y));
}
}
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