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-rw-r--r--src/graphics/common/light.cpp396
1 files changed, 395 insertions, 1 deletions
diff --git a/src/graphics/common/light.cpp b/src/graphics/common/light.cpp
index d938256..3ca890c 100644
--- a/src/graphics/common/light.cpp
+++ b/src/graphics/common/light.cpp
@@ -19,4 +19,398 @@
#include "graphics/common/light.h"
-// TODO implementation \ No newline at end of file
+#include "common/iman.h"
+#include "graphics/common/device.h"
+#include "math/geometry.h"
+
+#include <cmath>
+
+
+void Gfx::LightProgression::Init(float value)
+{
+ starting = value;
+ ending = value;
+ current = value;
+ progress = 0.0f;
+ speed = 100.0f;
+}
+
+void Gfx::LightProgression::Update(float rTime)
+{
+ if (speed < 100.0f)
+ {
+ if (progress < 1.0f)
+ {
+ progress += speed * rTime;
+ if (progress > 1.0f)
+ progress = 1.0f;
+ }
+
+ current = starting + progress * (ending - starting);
+ }
+ else
+ {
+ current = ending;
+ }
+}
+
+void Gfx::LightProgression::SetTarget(float value)
+{
+ starting = current;
+ ending = value;
+ progress = 0.0f;
+}
+
+
+Gfx::DynamicLight::DynamicLight()
+{
+ used = enabled = false;
+}
+
+
+
+Gfx::CLightManager::CLightManager(CInstanceManager* iMan, Gfx::CEngine* engine)
+{
+ m_iMan = iMan;
+ m_iMan->AddInstance(CLASS_LIGHT, this);
+
+ m_device = NULL;
+ m_engine = engine;
+
+ m_time = 0.0f;
+}
+
+Gfx::CLightManager::~CLightManager()
+{
+ m_iMan->DeleteInstance(CLASS_LIGHT, this);
+
+ m_iMan = NULL;
+ m_device = NULL;
+ m_engine = NULL;
+}
+
+void Gfx::CLightManager::SetDevice(Gfx::CDevice* device)
+{
+ m_device = device;
+
+ m_dynLights = std::vector<Gfx::DynamicLight>(m_device->GetMaxLightCount(), Gfx::DynamicLight());
+}
+
+void Gfx::CLightManager::FlushLights()
+{
+ for (int i = 0; i < static_cast<int>( m_dynLights.size() ); i++)
+ {
+ m_dynLights[i].used = false;
+ m_device->SetLightEnabled(i, false);
+ }
+}
+
+/** Returns the index of light created or -1 if all lights are used. */
+int Gfx::CLightManager::CreateLight()
+{
+ for (int i = 0; i < static_cast<int>( m_dynLights.size() ); i++)
+ {
+ if (m_dynLights[i].used) continue;
+
+ m_dynLights[i] = Gfx::DynamicLight();
+
+ m_dynLights[i].used = true;
+ m_dynLights[i].enabled = true;
+
+ m_dynLights[i].includeType = Gfx::ENG_OBJTYPE_NULL;
+ m_dynLights[i].excludeType = Gfx::ENG_OBJTYPE_NULL;
+
+ m_dynLights[i].light.type = Gfx::LIGHT_DIRECTIONAL;
+ m_dynLights[i].light.diffuse = Gfx::Color(0.5f, 0.5f, 0.5f);
+ m_dynLights[i].light.position = Math::Vector(-100.0f, 100.0f, -100.0f);
+ m_dynLights[i].light.direction = Math::Vector( 1.0f, -1.0f, 1.0f);
+
+ m_dynLights[i].intensity.Init(1.0f); // maximum
+ m_dynLights[i].colorRed.Init(0.5f);
+ m_dynLights[i].colorGreen.Init(0.5f);
+ m_dynLights[i].colorBlue.Init(0.5f); // gray
+
+ return i;
+ }
+
+ return -1;
+}
+
+bool Gfx::CLightManager::DeleteLight(int lightRank)
+{
+ if ( (lightRank < 0) || (lightRank >= static_cast<int>( m_dynLights.size() )) )
+ return false;
+
+ m_dynLights[lightRank].used = false;
+ m_device->SetLightEnabled(lightRank, false);
+
+ return true;
+}
+
+// Specifies a light.
+
+bool Gfx::CLightManager::SetLight(int lightRank, const Gfx::Light &light)
+{
+ if ( (lightRank < 0) || (lightRank >= static_cast<int>( m_dynLights.size() )) )
+ return false;
+
+ m_dynLights[lightRank].light = light;
+
+ m_dynLights[lightRank].colorRed.Init(m_dynLights[lightRank].light.diffuse.r);
+ m_dynLights[lightRank].colorGreen.Init(m_dynLights[lightRank].light.diffuse.g);
+ m_dynLights[lightRank].colorBlue.Init(m_dynLights[lightRank].light.diffuse.b);
+
+ return true;
+}
+
+bool Gfx::CLightManager::GetLight(int lightRank, Gfx::Light &light)
+{
+ if ( (lightRank < 0) || (lightRank >= static_cast<int>( m_dynLights.size() )) )
+ return false;
+
+ light = m_dynLights[lightRank].light;
+ return true;
+}
+
+bool Gfx::CLightManager::SetLightEnabled(int lightRank, bool enabled)
+{
+ if ( (lightRank < 0) || (lightRank >= static_cast<int>( m_dynLights.size() )) )
+ return false;
+
+ m_dynLights[lightRank].enabled = enabled;
+ return true;
+}
+
+bool Gfx::CLightManager::SetLightIncludeType(int lightRank, Gfx::EngineObjectType type)
+{
+ if ( (lightRank < 0) || (lightRank >= static_cast<int>( m_dynLights.size() )) )
+ return false;
+
+ m_dynLights[lightRank].includeType = type;
+ return true;
+}
+
+bool Gfx::CLightManager::SetLightExcludeType(int lightRank, Gfx::EngineObjectType type)
+{
+ if ( (lightRank < 0) || (lightRank >= static_cast<int>( m_dynLights.size() )) )
+ return false;
+
+ m_dynLights[lightRank].excludeType = type;
+ return true;
+}
+
+bool Gfx::CLightManager::SetLightPos(int lightRank, const Math::Vector &pos)
+{
+ if ( (lightRank < 0) || (lightRank >= static_cast<int>( m_dynLights.size() )) )
+ return false;
+
+ m_dynLights[lightRank].light.position = pos;
+ return true;
+}
+
+Math::Vector Gfx::CLightManager::GetLightPos(int lightRank)
+{
+ if ( (lightRank < 0) || (lightRank >= static_cast<int>( m_dynLights.size() )) )
+ return Math::Vector(0.0f, 0.0f, 0.0f);
+
+ return m_dynLights[lightRank].light.position;
+}
+
+bool Gfx::CLightManager::SetLightDir(int lightRank, const Math::Vector &dir)
+{
+ if ( (lightRank < 0) || (lightRank >= static_cast<int>( m_dynLights.size() )) )
+ return false;
+
+ m_dynLights[lightRank].light.direction = dir;
+ return true;
+}
+
+Math::Vector Gfx::CLightManager::GetLightDir(int lightRank)
+{
+ if ( (lightRank < 0) || (lightRank >= static_cast<int>( m_dynLights.size() )) )
+ return Math::Vector(0.0f, 0.0f, 0.0f);
+
+ return m_dynLights[lightRank].light.direction;
+}
+
+bool Gfx::CLightManager::SetLightIntensitySpeed(int lightRank, float speed)
+{
+ if ( (lightRank < 0) || (lightRank >= static_cast<int>( m_dynLights.size() )) )
+ return false;
+
+ m_dynLights[lightRank].intensity.speed = speed;
+ return true;
+}
+
+bool Gfx::CLightManager::SetLightIntensity(int lightRank, float value)
+{
+ if ( (lightRank < 0) || (lightRank >= static_cast<int>( m_dynLights.size() )) )
+ return false;
+
+ m_dynLights[lightRank].intensity.SetTarget(value);
+ return true;
+}
+
+float Gfx::CLightManager::GetLightIntensity(int lightRank)
+{
+ if ( (lightRank < 0) || (lightRank >= static_cast<int>( m_dynLights.size() )) )
+ return 0.0f;
+
+ return m_dynLights[lightRank].intensity.current;
+}
+
+
+bool Gfx::CLightManager::SetLightColorSpeed(int lightRank, float speed)
+{
+ if ( (lightRank < 0) || (lightRank >= static_cast<int>( m_dynLights.size() )) )
+ return false;
+
+ m_dynLights[lightRank].colorRed.speed = speed;
+ m_dynLights[lightRank].colorGreen.speed = speed;
+ m_dynLights[lightRank].colorBlue.speed = speed;
+ return true;
+}
+
+bool Gfx::CLightManager::SetLightColor(int lightRank, const Gfx::Color &color)
+{
+ if ( (lightRank < 0) || (lightRank >= static_cast<int>( m_dynLights.size() )) )
+ return false;
+
+ m_dynLights[lightRank].colorRed.SetTarget(color.r);
+ m_dynLights[lightRank].colorGreen.SetTarget(color.g);
+ m_dynLights[lightRank].colorBlue.SetTarget(color.b);
+ return true;
+}
+
+Gfx::Color Gfx::CLightManager::GetLightColor(int lightRank)
+{
+ if ( (lightRank < 0) || (lightRank >= static_cast<int>( m_dynLights.size() )) )
+ return Gfx::Color(0.5f, 0.5f, 0.5f, 0.5f);
+
+ Gfx::Color color;
+ color.r = m_dynLights[lightRank].colorRed.current;
+ color.g = m_dynLights[lightRank].colorGreen.current;
+ color.b = m_dynLights[lightRank].colorBlue.current;
+ return color;
+}
+
+void Gfx::CLightManager::AdaptLightColor(const Gfx::Color &color, float factor)
+{
+ for (int i = 0; i < static_cast<int>( m_dynLights.size() ); i++)
+ {
+ if (! m_dynLights[i].used)
+ continue;
+
+ Gfx::Color value;
+ value.r = m_dynLights[i].colorRed.current;
+ value.g = m_dynLights[i].colorGreen.current;
+ value.b = m_dynLights[i].colorBlue.current;
+
+ value.r += color.r * factor;
+ value.g += color.g * factor;
+ value.b += color.b * factor;
+
+ m_dynLights[i].colorRed.Init(value.r);
+ m_dynLights[i].colorGreen.Init(value.g);
+ m_dynLights[i].colorBlue.Init(value.b);
+ }
+
+ UpdateLights();
+}
+
+void Gfx::CLightManager::UpdateProgression(float rTime)
+{
+ if (m_engine->GetPause())
+ return;
+
+ m_time += rTime;
+
+ for (int i = 0; i < static_cast<int>( m_dynLights.size() ); i++)
+ {
+ if (! m_dynLights[i].used)
+ continue;
+
+ m_dynLights[i].intensity.Update(rTime);
+ m_dynLights[i].colorRed.Update(rTime);
+ m_dynLights[i].colorGreen.Update(rTime);
+ m_dynLights[i].colorBlue.Update(rTime);
+
+ if (m_dynLights[i].includeType == Gfx::ENG_OBJTYPE_QUARTZ)
+ {
+ m_dynLights[i].light.direction.x = sinf(1.0f * (m_time + i*Math::PI*0.5f));
+ m_dynLights[i].light.direction.z = cosf(1.1f * (m_time + i*Math::PI*0.5f));
+ m_dynLights[i].light.direction.y = -1.0f + 0.5f * cosf((m_time + i*Math::PI*0.5f)*2.7f);
+ }
+
+ if (m_dynLights[i].includeType == Gfx::ENG_OBJTYPE_METAL)
+ {
+ Math::Vector dir = m_engine->GetEyePt() - m_engine->GetLookatPt();
+ float angle = Math::RotateAngle(dir.x, dir.z);
+ angle += Math::PI * 0.5f * i;
+ m_dynLights[i].light.direction.x = sinf(2.0f * angle);
+ m_dynLights[i].light.direction.z = cosf(2.0f * angle);
+ }
+ }
+}
+
+
+void Gfx::CLightManager::UpdateLights()
+{
+ for (int i = 0; i < static_cast<int>( m_dynLights.size() ); i++)
+ {
+ if (! m_dynLights[i].used)
+ continue;
+
+ bool enabled = m_dynLights[i].enabled;
+ if (m_dynLights[i].intensity.current == 0.0f)
+ enabled = false;
+
+ if (enabled)
+ {
+ float value = m_dynLights[i].colorRed.current * m_dynLights[i].intensity.current;
+ m_dynLights[i].light.diffuse.r = value;
+
+ value = m_dynLights[i].colorGreen.current * m_dynLights[i].intensity.current;
+ m_dynLights[i].light.diffuse.g = value;
+
+ value = m_dynLights[i].colorBlue.current * m_dynLights[i].intensity.current;
+ m_dynLights[i].light.diffuse.b = value;
+
+ m_device->SetLight(i, m_dynLights[i].light);
+ m_device->SetLightEnabled(i, enabled);
+ }
+ else
+ {
+ m_dynLights[i].light.diffuse.r = 0.0f;
+ m_dynLights[i].light.diffuse.g = 0.0f;
+ m_dynLights[i].light.diffuse.b = 0.0f;
+
+ m_device->SetLightEnabled(i, enabled);
+ }
+ }
+}
+
+void Gfx::CLightManager::UpdateLightsEnableState(Gfx::EngineObjectType type)
+{
+ for (int i = 0; i < static_cast<int>( m_dynLights.size() ); i++)
+ {
+ if (! m_dynLights[i].used)
+ continue;
+ if (! m_dynLights[i].enabled)
+ continue;
+ if (m_dynLights[i].intensity.current == 0.0f)
+ continue;
+
+ if (m_dynLights[i].includeType != Gfx::ENG_OBJTYPE_NULL)
+ {
+ bool enabled = (m_dynLights[i].includeType == type);
+ m_device->SetLightEnabled(i, enabled);
+ }
+
+ if (m_dynLights[i].excludeType != Gfx::ENG_OBJTYPE_NULL)
+ {
+ bool enabled = (m_dynLights[i].excludeType != type);
+ m_device->SetLightEnabled(i, enabled);
+ }
+ }
+}
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