302 lines
7.0 KiB
C++
302 lines
7.0 KiB
C++
/* Copyright (C) 2009 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "precompiled.h"
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#include "View.h"
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#include "ActorViewer.h"
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#include "GameLoop.h"
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#include "Messages.h"
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#include "SimState.h"
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#include "graphics/CinemaTrack.h"
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#include "graphics/GameView.h"
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#include "graphics/SColor.h"
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#include "graphics/UnitManager.h"
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#include "lib/timer.h"
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#include "ps/Game.h"
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#include "ps/GameSetup/GameSetup.h"
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#include "ps/World.h"
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#include "renderer/Renderer.h"
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#include "simulation/Simulation.h"
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extern void (*Atlas_GLSwapBuffers)(void* context);
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extern int g_xres, g_yres;
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//////////////////////////////////////////////////////////////////////////
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void View::SetParam(const std::wstring& UNUSED(name), bool UNUSED(value))
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{
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}
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void View::SetParam(const std::wstring& UNUSED(name), const AtlasMessage::Colour& UNUSED(value))
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{
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}
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//////////////////////////////////////////////////////////////////////////
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ViewActor::ViewActor()
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: m_SpeedMultiplier(1.f), m_ActorViewer(new ActorViewer())
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{
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}
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ViewActor::~ViewActor()
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{
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delete m_ActorViewer;
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}
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void ViewActor::Update(float frameLength)
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{
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m_ActorViewer->Update(frameLength * m_SpeedMultiplier);
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}
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void ViewActor::Render()
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{
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SViewPort vp = { 0, 0, g_xres, g_yres };
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CCamera& camera = GetCamera();
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camera.SetViewPort(&vp);
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camera.SetProjection(CGameView::defaultNear, CGameView::defaultFar, CGameView::defaultFOV);
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camera.UpdateFrustum();
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m_ActorViewer->Render();
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Atlas_GLSwapBuffers((void*)g_GameLoop->glCanvas);
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}
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CCamera& ViewActor::GetCamera()
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{
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return m_Camera;
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}
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CUnit* ViewActor::GetUnit(AtlasMessage::ObjectID UNUSED(id))
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{
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return m_ActorViewer->GetUnit();
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}
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bool ViewActor::WantsHighFramerate()
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{
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if (m_SpeedMultiplier != 0.f && m_ActorViewer->HasAnimation())
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return true;
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return false;
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}
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void ViewActor::SetSpeedMultiplier(float speed)
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{
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m_SpeedMultiplier = speed;
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}
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ActorViewer& ViewActor::GetActorViewer()
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{
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return *m_ActorViewer;
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}
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void ViewActor::SetParam(const std::wstring& name, bool value)
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{
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if (name == L"wireframe")
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g_Renderer.SetModelRenderMode(value ? WIREFRAME : SOLID);
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else if (name == L"walk")
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m_ActorViewer->SetWalkEnabled(value);
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else if (name == L"ground")
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m_ActorViewer->SetGroundEnabled(value);
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else if (name == L"shadows")
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m_ActorViewer->SetShadowsEnabled(value);
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else if (name == L"stats")
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m_ActorViewer->SetStatsEnabled(value);
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}
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void ViewActor::SetParam(const std::wstring& name, const AtlasMessage::Colour& value)
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{
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if (name == L"background")
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{
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m_ActorViewer->SetBackgroundColour(SColor4ub(value.r, value.g, value.b, 255));
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}
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}
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//////////////////////////////////////////////////////////////////////////
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namespace AtlasMessage
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{
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extern void AtlasRenderSelection();
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}
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template<typename T, typename S>
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static void delete_pair_2nd(std::pair<T,S> v)
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{
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delete v.second;
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}
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ViewGame::ViewGame()
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: m_SpeedMultiplier(0.f)
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{
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debug_assert(g_Game);
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}
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ViewGame::~ViewGame()
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{
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std::for_each(m_SavedStates.begin(), m_SavedStates.end(), delete_pair_2nd<std::wstring, SimState*>);
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}
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void ViewGame::Update(float frameLength)
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{
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float actualFrameLength = frameLength * m_SpeedMultiplier;
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if (m_SpeedMultiplier == 0.f)
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{
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// Update unit interpolation
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g_Game->GetSimulation()->Interpolate(0.0);
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}
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else
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{
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// Update the whole world
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// (Tell the game update not to interpolate graphics - we'll do that
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// ourselves)
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bool ok = g_Game->Update(actualFrameLength, false);
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if (! ok)
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{
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// Whoops, we're trying to go faster than the simulation can manage.
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// It's probably better to run at the right sim rate, at the expense
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// of framerate, so let's try simulating a few more times.
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double t = timer_Time();
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while (!ok && timer_Time() < t + 0.1) // don't go much worse than 10fps
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{
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ok = g_Game->Update(0.0, false); // don't add on any extra sim time
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}
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}
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// Interpolate the graphics - we only want to do this once per visual frame,
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// not in every call to g_Game->Update
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g_Game->GetSimulation()->Interpolate(actualFrameLength);
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// If we still couldn't keep up, just drop the sim rate instead of building
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// up a (potentially very large) backlog of required updates
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g_Game->GetSimulation()->DiscardMissedUpdates();
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}
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// Cinematic motion should be independent of simulation update, so we can
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// preview the cinematics by themselves
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if (g_Game->GetView()->GetCinema()->IsPlaying())
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g_Game->GetView()->GetCinema()->Update(frameLength);
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}
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void ViewGame::Render()
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{
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SViewPort vp = { 0, 0, g_xres, g_yres };
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CCamera& camera = GetCamera();
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camera.SetViewPort(&vp);
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camera.SetProjection(CGameView::defaultNear, CGameView::defaultFar, CGameView::defaultFOV);
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camera.UpdateFrustum();
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::Render();
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AtlasMessage::AtlasRenderSelection();
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Atlas_GLSwapBuffers((void*)g_GameLoop->glCanvas);
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}
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CCamera& ViewGame::GetCamera()
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{
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return *g_Game->GetView()->GetCamera();
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}
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CUnit* ViewGame::GetUnit(AtlasMessage::ObjectID id)
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{
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return g_Game->GetWorld()->GetUnitManager().FindByID(id);
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}
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bool ViewGame::WantsHighFramerate()
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{
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if (g_Game->GetView()->GetCinema()->IsPlaying())
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return true;
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if (m_SpeedMultiplier != 0.f)
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return true;
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return false;
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}
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void ViewGame::SetSpeedMultiplier(float speed)
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{
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m_SpeedMultiplier = speed;
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}
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void ViewGame::SaveState(const std::wstring& label, bool onlyEntities)
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{
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delete m_SavedStates[label]; // in case it already exists
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m_SavedStates[label] = SimState::Freeze(onlyEntities);
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}
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void ViewGame::RestoreState(const std::wstring& label)
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{
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SimState* simState = m_SavedStates[label];
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if (! simState)
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return;
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simState->Thaw();
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}
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//////////////////////////////////////////////////////////////////////////
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ViewNone* view_None = NULL;
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ViewGame* view_Game = NULL;
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ViewActor* view_Actor = NULL;
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View::~View()
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{
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}
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View* View::GetView(int /*eRenderView*/ view)
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{
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switch (view)
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{
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case AtlasMessage::eRenderView::NONE: return View::GetView_None();
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case AtlasMessage::eRenderView::GAME: return View::GetView_Game();
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case AtlasMessage::eRenderView::ACTOR: return View::GetView_Actor();
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default:
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debug_warn("Invalid view type");
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return View::GetView_None();
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}
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}
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View* View::GetView_None()
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{
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if (! view_None)
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view_None = new ViewNone();
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return view_None;
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}
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ViewGame* View::GetView_Game()
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{
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if (! view_Game)
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view_Game = new ViewGame();
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return view_Game;
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}
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ViewActor* View::GetView_Actor()
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{
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if (! view_Actor)
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view_Actor = new ViewActor();
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return view_Actor;
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}
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void View::DestroyViews()
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{
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delete view_None; view_None = NULL;
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delete view_Game; view_Game = NULL;
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delete view_Actor; view_Actor = NULL;
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}
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