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Diffstat (limited to 'src/graphics/engine/lightman.h')
| -rw-r--r-- | src/graphics/engine/lightman.h | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/src/graphics/engine/lightman.h b/src/graphics/engine/lightman.h new file mode 100644 index 0000000..8272125 --- /dev/null +++ b/src/graphics/engine/lightman.h @@ -0,0 +1,181 @@ +// * This file is part of the COLOBOT source code +// * Copyright (C) 2001-2008, Daniel ROUX & EPSITEC SA, www.epsitec.ch +// * Copyright (C) 2012, Polish Portal of Colobot (PPC) +// * +// * This program 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. +// * +// * This program 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 General Public License for more details. +// * +// * You should have received a copy of the GNU General Public License +// * along with this program. If not, see http://www.gnu.org/licenses/. + +// lightman.h + +#pragma once + + +#include "graphics/core/color.h" +#include "graphics/core/light.h" +#include "graphics/engine/engine.h" +#include "math/vector.h" + + +namespace Gfx { + +/** + \struct LightProgression + \brief Describes the progression of light parameters change */ +struct LightProgression +{ + //! Starting value + float starting; + //! Ending (destination) value + float ending; + //! Current value + float current; + //! Progress from start to end + float progress; + //! Speed of progression + float speed; + + LightProgression() + { + starting = ending = current = progress = speed = 0.0f; + } + + //! Initializes the progression + void Init(float value); + + //! Updates the progression + void Update(float rTime); + + //! Sets the new end value (starting is set to current) + void SetTarget(float value); +}; + +/** + \struct DynamicLight + \brief Dynamic light in 3D scene + + It is an extension over standard light properties. Added are dynamic progressions for light + colors and intensity and types of objects included/excluded in lighting. */ +struct DynamicLight +{ + //! Whether the light is used + bool used; + //! Whether the light is turned on + bool enabled; + + //! Configuration of the light + Gfx::Light light; + + //! Progression of intensity [0, 1] + Gfx::LightProgression intensity; + //! Progression of red diffuse color + Gfx::LightProgression colorRed; + //! Progression of green diffuse color + Gfx::LightProgression colorGreen; + //! Progression of blue diffuse color + Gfx::LightProgression colorBlue; + + //! Type of objects included in lighting with this light; if Gfx::ENG_OBJTYPE_NULL is used, it is ignored + Gfx::EngineObjectType includeType; + //! Type of objects excluded from lighting with this light; if Gfx::ENG_OBJTYPE_NULL is used, it is ignored + Gfx::EngineObjectType excludeType; + + DynamicLight(); +}; + +/** + \class CLightManager + \brief Manager for dynamic lights in 3D scene + + (Old CLight class) + + The class is responsible for managing dynamic lights (struct Gfx::DynamicLight) used in 3D scene. + The dynamic lights are created, updated and deleted through the class' interface. + + Number of available lights depends on graphics device used. Class allocates vector + for the total number of lights, but only some are used. + */ +class CLightManager +{ +public: + //! Constructor + CLightManager(CInstanceManager *iMan, Gfx::CEngine* engine); + //! Destructor + virtual ~CLightManager(); + + //! Sets the device to be used + void SetDevice(Gfx::CDevice* device); + + //! Clears and disables all lights + void FlushLights(); + //! Creates a new dynamic light and returns its index (lightRank) + int CreateLight(); + //! Deletes and disables the given dynamic light + bool DeleteLight(int lightRank); + //! Sets the light parameters for dynamic light + bool SetLight(int lightRank, const Gfx::Light &light); + //! Returns the light parameters for given dynamic light + bool GetLight(int lightRank, Gfx::Light &light); + //! Enables/disables the given dynamic light + bool SetLightEnabled(int lightRank, bool enable); + + //! Sets what objects are included in given dynamic light + bool SetLightIncludeType(int lightRank, Gfx::EngineObjectType type); + //! Sets what objects are excluded from given dynamic light + bool SetLightExcludeType(int lightRank, Gfx::EngineObjectType type); + + //! Sets the position of dynamic light + bool SetLightPos(int lightRank, const Math::Vector &pos); + //! Returns the position of dynamic light + Math::Vector GetLightPos(int lightRank); + + //! Sets the direction of dynamic light + bool SetLightDir(int lightRank, const Math::Vector &dir); + //! Returns the direction of dynamic light + Math::Vector GetLightDir(int lightRank); + + //! Sets the destination intensity for dynamic light's intensity progression + bool SetLightIntensity(int lightRank, float value); + //! Returns the current light intensity + float GetLightIntensity(int lightRank); + //! Sets the rate of change for dynamic light intensity + bool SetLightIntensitySpeed(int lightRank, float speed); + + //! Adjusts the color of all dynamic lights + void AdaptLightColor(const Gfx::Color &color, float factor); + + //! Sets the destination color for dynamic light's color progression + bool SetLightColor(int lightRank, const Gfx::Color &color); + //! Returns current light color + Gfx::Color GetLightColor(int lightRank); + //! Sets the rate of change for dynamic light colors (RGB) + bool SetLightColorSpeed(int lightRank, float speed); + + //! Updates progression of dynamic lights + void UpdateProgression(float rTime); + //! Updates (recalculates) all dynamic lights + void UpdateLights(); + //! Enables or disables dynamic lights affecting the given object type + void UpdateLightsEnableState(Gfx::EngineObjectType type); + +protected: + CInstanceManager* m_iMan; + CEngine* m_engine; + CDevice* m_device; + + //! Current time + float m_time; + //! List of dynamic lights + std::vector<Gfx::DynamicLight> m_dynLights; +}; + +}; // namespace Gfx |