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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 "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/myMath.h"
#include "System/NetProtocol.h"
#include <SDL_mouse.h>
FPSUnitController::FPSUnitController()
: targetUnit(NULL)
, controllee(NULL)
, controller(NULL)
, viewDir(float3(0.0f, 0.0f, 1.0f))
, targetPos(float3(0.0f, 0.0f, 1.0f))
, 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 int piece = controllee->script->AimFromWeapon(0);
const float3 relPos = controllee->script->GetPiecePos(piece);
const float3 pos = controllee->pos +
controllee->frontdir * relPos.z +
controllee->updir * relPos.y +
controllee->rightdir * relPos.x +
UpVector * 7.0f;
oldDCpos = pos;
CUnit* hitUnit;
CFeature* hitFeature;
// SYNCED, do NOT use GuiTraceRay which also checks gu->spectatingFullView
float hitDist = TraceRay::TraceRay(pos, viewDir, controllee->maxRange, 0, controllee, hitUnit, hitFeature);
if (hitUnit) {
targetUnit = hitUnit;
targetDist = hitDist;
targetPos = hitUnit->pos;
if (!mouse2) {
controllee->AttackUnit(hitUnit, true, true);
}
} else {
hitDist = std::min(hitDist, controllee->maxRange * 0.95f);
targetUnit = NULL;
targetDist = hitDist;
targetPos = pos + viewDir * targetDist;
if (!mouse2) {
// 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 - ground->GetHeightReal(targetPos.x, targetPos.z)) <= SQUARE_SIZE) {
controllee->AttackGround(targetPos, 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 != NULL) {
controllee->AttackUnit(NULL, 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(const bool* camMove) {
if (!gu->fpsMode) { return; }
unsigned char state = 0;
if (camMove[0]) { state |= (1 << 0); }
if (camMove[1]) { state |= (1 << 1); }
if (camMove[2]) { state |= (1 << 2); }
if (camMove[3]) { state |= (1 << 3); }
if (mouse->buttons[SDL_BUTTON_LEFT].pressed) { state |= (1 << 4); }
if (mouse->buttons[SDL_BUTTON_RIGHT].pressed) { state |= (1 << 5); }
shortint2 hp = GetHAndPFromVector(camera->forward);
if (hp.x != oldHeading || hp.y != oldPitch || state != oldState) {
oldHeading = hp.x;
oldPitch = hp.y;
oldState = state;
net->Send(CBaseNetProtocol::Get().SendDirectControlUpdate(gu->myPlayerNum, state, hp.x, hp.y));
}
}
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