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Diffstat (limited to 'indra/newview/llcloud.h')
| -rw-r--r-- | indra/newview/llcloud.h | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/indra/newview/llcloud.h b/indra/newview/llcloud.h deleted file mode 100644 index 0435ba1ece..0000000000 --- a/indra/newview/llcloud.h +++ /dev/null @@ -1,199 +0,0 @@ -/** - * @file llcloud.h - * @brief Description of viewer LLCloudLayer class - * - * $LicenseInfo:firstyear=2001&license=viewerlgpl$ - * Second Life Viewer Source Code - * Copyright (C) 2010, Linden Research, Inc. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; - * version 2.1 of the License only. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * - * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA - * $/LicenseInfo$ - */ - -#ifndef LL_LLCLOUD_H -#define LL_LLCLOUD_H - -// Some ideas on how clouds should work -// -// Each region has a cloud layer -// Each cloud layer has pre-allocated space for N clouds -// The LLSky class knows the max number of clouds to render M. -// All clouds use the same texture, but the tex-coords can take on 8 configurations -// (four rotations, front and back) -// -// The sky's part -// -------------- -// The sky knows that A clouds have been assigned to regions and there are B left over. -// Divide B by number of active regions to get C. -// Ask each region to add C more clouds and return total number D. -// Add up all the D's to get a new A. -// -// The cloud layer's part -// ---------------------- -// The cloud layer is a grid of possibility. Each grid's value represents the probablility -// (0.0 to 1.0) that a cloud placement query will succeed. -// -// The sky asks the region to add C more clouds. -// The cloud layer tries a total of E times to place clouds and returns total cloud count. -// -// Clouds move according to local wind velocity. -// If a cloud moves out of region then it's location is sent to neighbor region -// or it is allowed to drift and decay. -// -// The clouds in non-visible regions do not propagate every frame. -// Each frame one non-visible region is allowed to propagate it's clouds -// (might have to check to see if incoming cloud was already visible or not). -// -// - -#include "llmath.h" -//#include "vmath.h" -#include "v3math.h" -#include "v3dmath.h" -#include "v4math.h" -#include "v4color.h" -#include "llpointer.h" -#include "lldarray.h" - -#include "llframetimer.h" - -const U32 CLOUD_GRIDS_PER_EDGE = 16; - -const F32 CLOUD_PUFF_WIDTH = 64.f; -const F32 CLOUD_PUFF_HEIGHT = 48.f; - -class LLWind; -class LLVOClouds; -class LLViewerRegion; -class LLCloudLayer; -class LLBitPack; -class LLGroupHeader; - -const S32 CLOUD_GROUPS_PER_EDGE = 4; - -class LLCloudPuff -{ -public: - LLCloudPuff(); - - const LLVector3d &getPositionGlobal() const { return mPositionGlobal; } - friend class LLCloudGroup; - - void updatePuffs(const F32 dt); - void updatePuffOwnership(); - - F32 getAlpha() const { return mAlpha; } - U32 getLifeState() const { return mLifeState; } - void setLifeState(const U32 state) { mLifeState = state; } - BOOL isDead() const { return mAlpha <= 0.f; } - - - static S32 sPuffCount; -protected: - F32 mAlpha; - F32 mRate; - LLVector3d mPositionGlobal; - - BOOL mLifeState; -}; - -class LLCloudGroup -{ -public: - LLCloudGroup(); - - void cleanup(); - - void setCloudLayerp(LLCloudLayer *clp) { mCloudLayerp = clp; } - void setCenterRegion(const LLVector3 ¢er); - - void updatePuffs(const F32 dt); - void updatePuffOwnership(); - void updatePuffCount(); - - BOOL inGroup(const LLCloudPuff &puff) const; - - F32 getDensity() const { return mDensity; } - S32 getNumPuffs() const { return (S32) mCloudPuffs.size(); } - const LLCloudPuff &getPuff(const S32 i) { return mCloudPuffs[i]; } -protected: - LLCloudLayer *mCloudLayerp; - LLVector3 mCenterRegion; - F32 mDensity; - S32 mTargetPuffCount; - - std::vector<LLCloudPuff> mCloudPuffs; - LLPointer<LLVOClouds> mVOCloudsp; -}; - - -class LLCloudLayer -{ -public: - LLCloudLayer(); - ~LLCloudLayer(); - - void create(LLViewerRegion *regionp); - void destroy(); - - void reset(); // Clears all active cloud puffs - - - void updatePuffs(const F32 dt); - void updatePuffOwnership(); - void updatePuffCount(); - - LLCloudGroup *findCloudGroup(const LLCloudPuff &puff); - - void setRegion(LLViewerRegion *regionp); - LLViewerRegion* getRegion() const { return mRegionp; } - void setWindPointer(LLWind *windp); - void setOriginGlobal(const LLVector3d &origin_global) { mOriginGlobal = origin_global; } - void setWidth(F32 width); - - void setBrightness(F32 brightness); - void setSunColor(const LLColor4 &color); - - F32 getDensityRegion(const LLVector3 &pos_region); // "position" is in local coordinates - - void decompress(LLBitPack &bitpack, LLGroupHeader *group_header); - - LLCloudLayer* getNeighbor(const S32 n) const { return mNeighbors[n]; } - - void connectNeighbor(LLCloudLayer *cloudp, U32 direction); - void disconnectNeighbor(U32 direction); - void disconnectAllNeighbors(); - -public: - LLVector3d mOriginGlobal; - F32 mMetersPerEdge; - F32 mMetersPerGrid; - - - F32 mMaxAlpha; // The max cloud puff _render_ alpha - -protected: - LLCloudLayer *mNeighbors[4]; - LLWind *mWindp; - LLViewerRegion *mRegionp; - F32 *mDensityp; // the probability density grid - - LLCloudGroup mCloudGroups[CLOUD_GROUPS_PER_EDGE][CLOUD_GROUPS_PER_EDGE]; -}; - - -#endif |