/***************************************************************************** The Dark Mod GPL Source Code This file is part of the The Dark Mod Source Code, originally based on the Doom 3 GPL Source Code as published in 2011. The Dark Mod Source Code is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. For details, see LICENSE.TXT. Project: The Dark Mod (http://www.thedarkmod.com/) ******************************************************************************/ #include "precompiled.h" #pragma hdrstop #include "LightGem.h" #include "../renderer/tr_local.h" //------------------------ // Construction/Destruction //---------------------------------------------------- LightGem::LightGem() { m_LightgemImgBufferFrontend = (byte*)Mem_Alloc16( DARKMOD_LG_RENDER_WIDTH * DARKMOD_LG_RENDER_WIDTH * DARKMOD_LG_BPP * 4 ); m_LightgemImgBufferBackend = (byte*)Mem_Alloc16( DARKMOD_LG_RENDER_WIDTH * DARKMOD_LG_RENDER_WIDTH * DARKMOD_LG_BPP * 4 ); } LightGem::~LightGem() { Mem_Free16( m_LightgemImgBufferFrontend ); Mem_Free16( m_LightgemImgBufferBackend ); } //---------------------------------------------------- // Initialization //---------------------------------------------------- void LightGem::Clear() { m_LightgemSurface = NULL; m_LightgemShotSpot = 0; memset(m_LightgemShotValue, 0, sizeof(m_LightgemShotValue)); } void LightGem::SpawnLightGemEntity( idMapFile * a_mapFile ) { static const char *LightgemName = DARKMOD_LG_ENTITY_NAME; idMapEntity *mapEnt = a_mapFile->FindEntity(LightgemName); if ( mapEnt == NULL ) { mapEnt = new idMapEntity(); a_mapFile->AddEntity(mapEnt); mapEnt->epairs.Set("classname", "func_static"); mapEnt->epairs.Set("name", LightgemName); if ( strlen(cv_lg_model.GetString()) == 0 ) { mapEnt->epairs.Set("model", DARKMOD_LG_RENDER_MODEL); } else { mapEnt->epairs.Set("model", cv_lg_model.GetString()); } mapEnt->epairs.Set("origin", "0 0 0"); mapEnt->epairs.Set("noclipmodel", "1"); } } void LightGem::InitializeLightGemEntity( void ) { m_LightgemSurface = gameLocal.FindEntity(DARKMOD_LG_ENTITY_NAME); m_LightgemSurface.GetEntity()->GetRenderEntity()->allowSurfaceInViewID = VID_LIGHTGEM; m_LightgemSurface.GetEntity()->GetRenderEntity()->suppressShadowInViewID = 0; m_LightgemSurface.GetEntity()->GetRenderEntity()->noDynamicInteractions = false; m_LightgemSurface.GetEntity()->GetRenderEntity()->noShadow = true; m_LightgemSurface.GetEntity()->GetRenderEntity()->noSelfShadow = true; //nbohr1more: #4379 lightgem culling m_LightgemSurface.GetEntity()->GetRenderEntity()->isLightgem = true; DM_LOG(LC_LIGHT, LT_INFO)LOGSTRING("LightgemSurface: [%08lX]\r", m_LightgemSurface.GetEntity()); // set lightgem to full dark instead of weird values on game start m_LightgemOverrideFrames = DARKMOD_LG_PAUSE; m_LightgemOverrideValue = 0.0f; } //---------------------------------------------------- // State Persistence //---------------------------------------------------- void LightGem::Save( idSaveGame & a_saveGame ) { m_LightgemSurface.Save( &a_saveGame ); a_saveGame.WriteInt(m_LightgemShotSpot); for (int i = 0; i < DARKMOD_LG_MAX_RENDERPASSES; i++) { a_saveGame.WriteFloat(m_LightgemShotValue[i]); } // m_LightgemOverrideXXX not saved: reset on load } void LightGem::Restore( idRestoreGame & a_savedGame ) { m_LightgemSurface.Restore( &a_savedGame ); a_savedGame.ReadInt(m_LightgemShotSpot); for (int i = 0; i < DARKMOD_LG_MAX_RENDERPASSES; i++) { a_savedGame.ReadFloat(m_LightgemShotValue[i]); } // #6088: return old lightgem values read from savefile for the next few frames m_LightgemOverrideFrames = DARKMOD_LG_PAUSE; m_LightgemOverrideValue = *std::max_element(m_LightgemShotValue, m_LightgemShotValue + DARKMOD_LG_MAX_RENDERPASSES); m_LightgemSurface.GetEntity()->GetRenderEntity()->allowSurfaceInViewID = VID_LIGHTGEM; m_LightgemSurface.GetEntity()->GetRenderEntity()->suppressShadowInViewID = 0; m_LightgemSurface.GetEntity()->GetRenderEntity()->noDynamicInteractions = false; m_LightgemSurface.GetEntity()->GetRenderEntity()->noShadow = true; m_LightgemSurface.GetEntity()->GetRenderEntity()->noSelfShadow = true; //nbohr1more: #4379 lightgem culling m_LightgemSurface.GetEntity()->GetRenderEntity()->isLightgem = true; DM_LOG(LC_LIGHT, LT_INFO)LOGSTRING("LightgemSurface: [%08lX]\r", m_LightgemSurface.GetEntity()); } //---------------------------------------------------- // Calculation //---------------------------------------------------- float LightGem::Calculate(idPlayer *player) { // analyze rendered shot from previous frame AnalyzeRenderImage(); m_LightgemShotValue[m_LightgemShotSpot] = 0.0f; // Check which of the images has the brightest value, and this is what we will use. for (int l = 0; l < DARKMOD_LG_MAX_IMAGESPLIT; l++) { if (m_fColVal[l] > m_LightgemShotValue[m_LightgemShotSpot]) { m_LightgemShotValue[m_LightgemShotSpot] = m_fColVal[l]; } } // If player is hidden (i.e the whole player entity is actually hidden) if ( player->GetModelDefHandle() == -1 ) { return 0.0f; } // Get position for lg idEntity* lg = m_LightgemSurface.GetEntity(); // duzenko #4408 - this happens at map start if no game tics ran in background yet if (lg->GetModelDefHandle() == -1) return 0.0f; renderEntity_t* lgent = lg->GetRenderEntity(); const idVec3& Cam = player->GetEyePosition(); idVec3 LGPos = player->GetPhysics()->GetOrigin();// Set the lightgem position to that of the player LGPos.x += (Cam.x - LGPos.x) * 0.3f + cv_lg_oxoffs.GetFloat(); // Move the lightgem out a fraction along the leaning x vector LGPos.y += (Cam.y - LGPos.y) * 0.3f + cv_lg_oyoffs.GetFloat(); // Move the lightgem out a fraction along the leaning y vector // Prevent lightgem from clipping into the floor while crouching if ( player->GetPlayerPhysics()->IsCrouching() ) { LGPos.z += 50.0f + cv_lg_ozoffs.GetFloat() ; } else { LGPos.z = Cam.z + cv_lg_ozoffs.GetFloat(); // Set the lightgem's Z-axis position to that of the player's eyes } m_LightgemShotSpot = (m_LightgemShotSpot + 1) % DARKMOD_LG_MAX_RENDERPASSES; // we want to return the highest shot value float fRetVal = 0.0f; for (int i = 0; i < DARKMOD_LG_MAX_RENDERPASSES; i++) { if ( m_LightgemShotValue[i] > fRetVal ) { fRetVal = m_LightgemShotValue[i]; } } if (m_LightgemOverrideFrames > 0) { // #6088: return old value for now m_LightgemOverrideFrames--; return m_LightgemOverrideValue; } return fRetVal; } void LightGem::AnalyzeRenderImage() { // frontend and backend can run in parallel, which is why we need two buffers and need to swap them // on every frame std::swap( m_LightgemImgBufferFrontend, m_LightgemImgBufferBackend ); const byte *buffer = m_LightgemImgBufferFrontend; // The lightgem will simply blink if the renderbuffer doesn't work. if ( buffer == nullptr ) { DM_LOG(LC_SYSTEM, LT_ERROR)LOGSTRING("Unable to read image from lightgem render-buffer\r"); for ( int i = 0; i < DARKMOD_LG_MAX_IMAGESPLIT; i++ ) { m_fColVal[i] = (gameLocal.time % 1024 ) > 512; } return; } /* Split up the image into the 4 triangles \11/ 0 - east of lightgem render 3 \/ 0 1 - north of lg 3 /\ 0 2 - south of lg /22\ 3 - west of lg Note : Serp - This is a simplification of the early version which used two nested loops */ int in = 0; for ( int x = 0; x < DARKMOD_LG_RENDER_WIDTH; x++ ) { for ( int y = 0; y < DARKMOD_LG_RENDER_WIDTH; y++, buffer += DARKMOD_LG_BPP ) { // increment the buffer pos if ( y <= x && x + y >= (DARKMOD_LG_RENDER_WIDTH -1) ) { in = 0; } else if ( y < x ) { in = 1; } else if ( y > (DARKMOD_LG_RENDER_WIDTH -1) - x ) { in = 2; } else { in = 3; } // The order is RGB. // #4395 Duzenko lightem pixel pack buffer optimization m_fColVal[in] += buffer[0] * DARKMOD_LG_RED + buffer[1] * DARKMOD_LG_GREEN + buffer[2] * DARKMOD_LG_BLUE; } } // Calculate the average for each value // Could be moved to the return // #4395 Duzenko lightem pixel pack buffer optimization m_fColVal[0] *= DARKMOD_LG_TRIRATIO * DARKMOD_LG_SCALE; m_fColVal[1] *= DARKMOD_LG_TRIRATIO * DARKMOD_LG_SCALE; m_fColVal[2] *= DARKMOD_LG_TRIRATIO * DARKMOD_LG_SCALE; m_fColVal[3] *= DARKMOD_LG_TRIRATIO * DARKMOD_LG_SCALE; }