Added darklands

resources/config2/gameobjects_uni_interior.json

@@ -27,6 +27,7 @@
       {
         "name": "inai",
         "texturePath": "resources/w/exterior/Building_work014.png",
+		"textureDarkandsPath" : "resources/w/interior/darklands_generated_building001.png",
         "meshPath": "resources/w/interior/Building_002.txt",
         "rotationX": 0.0,
         "rotationY": 0.0,

resources/shaders/darklands_flash_desktop.fragment

@@ -0,0 +1,6 @@
+uniform float uAlpha;
+
+void main()
+{
+	gl_FragColor = vec4(1.0, 1.0, 1.0, uAlpha);
+}

resources/shaders/darklands_flash_web.fragment

@@ -0,0 +1,7 @@
+precision mediump float;
+uniform float uAlpha;
+
+void main()
+{
+	gl_FragColor = vec4(1.0, 1.0, 1.0, uAlpha);
+}

resources/shaders/darklands_fog.vertex

@@ -0,0 +1,16 @@
+attribute vec3 vPosition;
+attribute vec2 vTexCoord;
+varying vec2 texCoord;
+varying float fogDistance;
+
+uniform mat4 ProjectionModelViewMatrix;
+uniform mat4 ModelViewMatrix;
+uniform vec3 uPlayerEyePos;
+
+void main()
+{
+	vec4 eyePos = ModelViewMatrix * vec4(vPosition.xyz, 1.0);
+	fogDistance = length(eyePos.xyz - uPlayerEyePos);
+	gl_Position = ProjectionModelViewMatrix * vec4(vPosition.xyz, 1.0);
+	texCoord = vTexCoord;
+}

resources/shaders/darklands_fog_desktop.fragment

@@ -0,0 +1,21 @@
+//precisionmediump float;
+uniform sampler2D Texture;
+uniform float uAlpha;
+varying vec2 texCoord;
+varying float fogDistance;
+
+void main()
+{
+	vec4 color = texture2D(Texture, texCoord).rgba;
+
+	if (color.a < 0.1)
+		discard;
+
+	vec3 tinted = mix(color.rgb, vec3(0.5, 0.5, 0.8), 0.3);
+
+	vec3 fogColor = vec3(0.05, 0.05, 0.2);
+	float fogFactor = clamp((fogDistance - 5.0) / 10.0, 0.0, 1.0);
+	vec3 finalColor = mix(tinted, fogColor, fogFactor);
+
+	gl_FragColor = vec4(finalColor, color.a * uAlpha);
+}

resources/shaders/darklands_fog_skinning.vertex

@@ -0,0 +1,55 @@
+attribute vec3 vPosition;
+attribute vec2 vTexCoord;
+attribute vec4 aBoneIndices0;
+attribute vec2 aBoneIndices1;
+attribute vec4 aBoneWeights0;
+attribute vec2 aBoneWeights1;
+
+varying vec2 texCoord;
+varying float fogDistance;
+
+uniform mat4 ProjectionModelViewMatrix;
+uniform mat4 ModelViewMatrix;
+uniform mat4 uBoneMatrices[64];
+uniform vec3 uPlayerEyePos;
+
+void main()
+{
+	vec4 skinnedPos = vec4(0.0, 0.0, 0.0, 0.0);
+	vec4 originalPos = vec4(vPosition, 1.0);
+	float totalWeight = 0.0;
+
+	if (aBoneWeights0.x > 0.0) {
+		skinnedPos += uBoneMatrices[int(aBoneIndices0.x)] * originalPos * aBoneWeights0.x;
+		totalWeight += aBoneWeights0.x;
+	}
+	if (aBoneWeights0.y > 0.0) {
+		skinnedPos += uBoneMatrices[int(aBoneIndices0.y)] * originalPos * aBoneWeights0.y;
+		totalWeight += aBoneWeights0.y;
+	}
+	if (aBoneWeights0.z > 0.0) {
+		skinnedPos += uBoneMatrices[int(aBoneIndices0.z)] * originalPos * aBoneWeights0.z;
+		totalWeight += aBoneWeights0.z;
+	}
+	if (aBoneWeights0.w > 0.0) {
+		skinnedPos += uBoneMatrices[int(aBoneIndices0.w)] * originalPos * aBoneWeights0.w;
+		totalWeight += aBoneWeights0.w;
+	}
+	if (aBoneWeights1.x > 0.0) {
+		skinnedPos += uBoneMatrices[int(aBoneIndices1.x)] * originalPos * aBoneWeights1.x;
+		totalWeight += aBoneWeights1.x;
+	}
+	if (aBoneWeights1.y > 0.0) {
+		skinnedPos += uBoneMatrices[int(aBoneIndices1.y)] * originalPos * aBoneWeights1.y;
+		totalWeight += aBoneWeights1.y;
+	}
+
+	if (totalWeight < 0.001) {
+		skinnedPos = originalPos;
+	}
+
+	vec4 eyePos = ModelViewMatrix * skinnedPos;
+	fogDistance = length(eyePos.xyz - uPlayerEyePos);
+	gl_Position = ProjectionModelViewMatrix * skinnedPos;
+	texCoord = vTexCoord;
+}

resources/shaders/darklands_fog_web.fragment

@@ -0,0 +1,21 @@
+precision mediump float;
+uniform sampler2D Texture;
+uniform float uAlpha;
+varying vec2 texCoord;
+varying float fogDistance;
+
+void main()
+{
+	vec4 color = texture2D(Texture, texCoord).rgba;
+
+	if (color.a < 0.1)
+		discard;
+
+	vec3 tinted = mix(color.rgb, vec3(0.5, 0.5, 0.8), 0.3);
+
+	vec3 fogColor = vec3(0.05, 0.05, 0.2);
+	float fogFactor = clamp((fogDistance - 5.0) / 10.0, 0.0, 1.0);
+	vec3 finalColor = mix(tinted, fogColor, fogFactor);
+
+	gl_FragColor = vec4(finalColor, color.a * uAlpha);
+}

src/Character.cpp

@@ -7,6 +7,7 @@
 #include "GameConstants.h"
 #include "Environment.h"
 
+
 namespace ZL {
 
 	const float ATTACK_COOLDOWN_TIME = 1.6f; 

src/Game.cpp

@@ -144,6 +144,9 @@ namespace ZL
 		renderer.shaderManager.AddShaderFromFiles("skinning", "resources/shaders/skinning.vertex", "resources/shaders/default_web.fragment", CONST_ZIP_FILE);
 		renderer.shaderManager.AddShaderFromFiles("fog", "resources/shaders/fog.vertex", "resources/shaders/fog_web.fragment", CONST_ZIP_FILE);
 		renderer.shaderManager.AddShaderFromFiles("fog_skinning", "resources/shaders/fog_skinning.vertex", "resources/shaders/fog_web.fragment", CONST_ZIP_FILE);
+		renderer.shaderManager.AddShaderFromFiles("darklands_fog", "resources/shaders/darklands_fog.vertex", "resources/shaders/darklands_fog_web.fragment", CONST_ZIP_FILE);
+		renderer.shaderManager.AddShaderFromFiles("darklands_fog_skinning", "resources/shaders/darklands_fog_skinning.vertex", "resources/shaders/darklands_fog_web.fragment", CONST_ZIP_FILE);
+		renderer.shaderManager.AddShaderFromFiles("darklands_flash", "resources/shaders/default.vertex", "resources/shaders/darklands_flash_web.fragment", CONST_ZIP_FILE);
 
 #else
 		renderer.shaderManager.AddShaderFromFiles("env_sky", "resources/shaders/env_sky.vertex", "resources/shaders/env_sky_desktop.fragment", CONST_ZIP_FILE);
@@ -155,6 +158,9 @@ namespace ZL
 		renderer.shaderManager.AddShaderFromFiles("skinning", "resources/shaders/skinning.vertex", "resources/shaders/default_desktop.fragment", CONST_ZIP_FILE);
 		renderer.shaderManager.AddShaderFromFiles("fog", "resources/shaders/fog.vertex", "resources/shaders/fog_desktop.fragment", CONST_ZIP_FILE);
 		renderer.shaderManager.AddShaderFromFiles("fog_skinning", "resources/shaders/fog_skinning.vertex", "resources/shaders/fog_desktop.fragment", CONST_ZIP_FILE);
+		renderer.shaderManager.AddShaderFromFiles("darklands_fog", "resources/shaders/darklands_fog.vertex", "resources/shaders/darklands_fog_desktop.fragment", CONST_ZIP_FILE);
+		renderer.shaderManager.AddShaderFromFiles("darklands_fog_skinning", "resources/shaders/darklands_fog_skinning.vertex", "resources/shaders/darklands_fog_desktop.fragment", CONST_ZIP_FILE);
+		renderer.shaderManager.AddShaderFromFiles("darklands_flash", "resources/shaders/default.vertex", "resources/shaders/darklands_flash_desktop.fragment", CONST_ZIP_FILE);
 #endif
 
 		std::cout << "Load resurces step 4" << std::endl;
@@ -343,7 +349,11 @@ namespace ZL
 		{
 			if (currentLocation)
 			{
-				if (currentLocation->shadowMap) {
+				if (currentLocation->isDarklands) {
+					currentLocation->drawGameDarklands();
+					CheckGlError(__FILE__, __LINE__);
+				}
+				else if (currentLocation->shadowMap) {
 					CheckGlError(__FILE__, __LINE__);
 					currentLocation->drawShadowDepthPass();
 					CheckGlError(__FILE__, __LINE__);
@@ -532,6 +542,10 @@ namespace ZL
 
 			if (event.type == SDL_KEYDOWN && event.key.repeat == 0) {
 				switch (event.key.keysym.sym) {
+				case SDLK_0:
+					if (currentLocation)
+						currentLocation->startDarklandsTransition();
+					break;
 				case SDLK_1:
 					//if (audioPlayer) audioPlayer->playSoundAsync("audio/background.wav");
 					break;

src/Location.cpp

@@ -270,6 +270,77 @@ namespace ZL
 		}
 	}
 
+	bool Location::startDarklandsTransition()
+	{
+		if (darklandsFlashActive) return false;
+		darklandsFlashActive = true;
+		darklandsFlashFadingIn = true;
+		darklandsFlashAlpha = 0.0f;
+		return true;
+	}
+
+	void Location::updateDarklandsFlash(int64_t deltaMs)
+	{
+		if (!darklandsFlashActive) return;
+		static constexpr float kFadeDurationMs = 500.0f;
+		const float step = static_cast<float>(deltaMs) / kFadeDurationMs;
+
+		if (darklandsFlashFadingIn) {
+			darklandsFlashAlpha = min(darklandsFlashAlpha + step, 1.0f);
+			if (darklandsFlashAlpha >= 1.0f) {
+				isDarklands = !isDarklands;
+				darklandsFlashFadingIn = false;
+			}
+		} else {
+			darklandsFlashAlpha = max(darklandsFlashAlpha - step, 0.0f);
+			if (darklandsFlashAlpha <= 0.0f) {
+				darklandsFlashAlpha = 0.0f;
+				darklandsFlashActive = false;
+			}
+		}
+	}
+
+	void Location::drawDarklandsFlash()
+	{
+		if (darklandsFlashAlpha <= 0.001f) return;
+
+		const float W = static_cast<float>(Environment::projectionWidth);
+		const float H = static_cast<float>(Environment::projectionHeight);
+
+		if (darklandsFlashQuadW != W || darklandsFlashQuadH != H) {
+			darklandsFlashQuadW = W;
+			darklandsFlashQuadH = H;
+			VertexDataStruct data;
+			data.PositionData = {
+				{0.f, 0.f, 0.f}, {0.f, H, 0.f}, {W, H, 0.f},
+				{W,   H, 0.f},   {W,  0.f, 0.f}, {0.f, 0.f, 0.f}
+			};
+			data.TexCoordData = {
+				{0.f, 0.f}, {0.f, 1.f}, {1.f, 1.f},
+				{1.f, 1.f}, {1.f, 0.f}, {0.f, 0.f}
+			};
+			darklandsFlashQuad.data = std::move(data);
+			darklandsFlashQuad.RefreshVBO();
+		}
+
+		glEnable(GL_BLEND);
+		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
+		renderer.shaderManager.PushShader("darklands_flash");
+		renderer.PushProjectionMatrix(0.0f, W, 0.0f, H, -10.0f, 10.0f);
+		renderer.PushMatrix();
+		renderer.LoadIdentity();
+
+		renderer.RenderUniform1f("uAlpha", darklandsFlashAlpha);
+		renderer.DrawVertexRenderStruct(darklandsFlashQuad);
+
+		renderer.PopMatrix();
+		renderer.PopProjectionMatrix();
+		renderer.shaderManager.PopShader();
+
+		glDisable(GL_BLEND);
+	}
+
 	void Location::setupNavigation(const std::vector<std::string>& paths)
 	{
 		navigationMapPaths = paths;
@@ -520,6 +591,12 @@ namespace ZL
 				continue;
 			}
 
+			if (isDarklands) {
+				if (!intObj.loadedObject.textureDarklands) continue;
+			} else {
+				if (!intObj.loadedObject.texture) continue;
+			}
+
 			//std::cout << "[RAYCAST]   Position: (" << intObj.position.x() << ", " << intObj.position.y() << ", "
 			//	<< intObj.position.z() << "), Radius: " << intObj.interactionRadius << std::endl;
 
@@ -656,6 +733,7 @@ namespace ZL
 
 		renderer.RenderUniform1f("uAlpha", 1.0f);
 		for (auto& [name, gameObj] : gameObjects) {
+			if (!gameObj.texture) continue;
 			glBindTexture(GL_TEXTURE_2D, gameObj.texture->getTexID());
 			renderer.DrawVertexRenderStruct(gameObj.mesh);
 		}
@@ -699,6 +777,7 @@ namespace ZL
 				if (npc) npc->drawHealthBar(renderer, currentView, proj);
 			}
 		}
+		drawDarklandsFlash();
 	}
 
 	void Location::drawShadowDepthPass()
@@ -835,6 +914,7 @@ namespace ZL
 		CheckGlError(__FILE__, __LINE__);
 		renderer.RenderUniform1f("uAlpha", 1.0f);
 		for (auto& [name, gameObj] : gameObjects) {
+			if (!gameObj.texture) continue;
 			glBindTexture(GL_TEXTURE_2D, gameObj.texture->getTexID());
 			renderer.DrawVertexRenderStruct(gameObj.mesh);
 		}
@@ -897,6 +977,77 @@ namespace ZL
 				if (npc) npc->drawHealthBar(renderer, cameraViewMatrix, proj);
 			}
 		}
+		drawDarklandsFlash();
+	}
+
+	void Location::drawGameDarklands()
+	{
+		glClearColor(0.05f, 0.05f, 0.2f, 1.0f);
+		glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
+
+		renderer.shaderManager.PushShader("darklands_fog");
+		renderer.RenderUniform1i(textureUniformName, 0);
+		const float playerEyePos[3] = { 0.0f, 0.0f, -Environment::zoom };
+		renderer.RenderUniform3fv("uPlayerEyePos", playerEyePos);
+
+		renderer.PushPerspectiveProjectionMatrix(1.0 / 1.5,
+			static_cast<float>(Environment::width) / static_cast<float>(Environment::height),
+			Environment::CONST_Z_NEAR, Environment::CONST_Z_FAR);
+		renderer.PushMatrix();
+
+		renderer.LoadIdentity();
+		renderer.TranslateMatrix({ 0, 0, -1.0f * Environment::zoom });
+
+		renderer.RotateMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(cameraInclination, Eigen::Vector3f::UnitX())).toRotationMatrix());
+		renderer.RotateMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(cameraAzimuth, Eigen::Vector3f::UnitY())).toRotationMatrix());
+		const Eigen::Vector3f& camTarget = player ? player->position : Eigen::Vector3f::Zero();
+		renderer.TranslateMatrix({ -camTarget.x(), -camTarget.y(), -camTarget.z() });
+
+		renderer.RenderUniform1f("uAlpha", 1.0f);
+		for (auto& [name, gameObj] : gameObjects) {
+			if (!gameObj.textureDarklands) continue;
+			glBindTexture(GL_TEXTURE_2D, gameObj.textureDarklands->getTexID());
+			renderer.DrawVertexRenderStruct(gameObj.mesh);
+		}
+
+		for (auto& intObj : interactiveObjects) {
+			if (intObj.isActive) {
+				intObj.drawDarklands(renderer);
+			}
+		}
+		renderer.RenderUniform1f("uAlpha", 1.0f);
+		const Eigen::Matrix4f currentView = renderer.GetCurrentModelViewMatrix();
+		if (player) player->prepareHitSparksForDraw(currentView);
+		for (auto& npc : npcs) npc->prepareHitSparksForDraw(currentView);
+		for (auto& tz : teleportZones) tz.prepareForDraw(currentView);
+
+		if (player) player->draw(renderer);
+		for (auto& npc : npcs) npc->draw(renderer);
+
+		for (auto& tz : teleportZones) tz.draw(renderer, Environment::zoom, Environment::width, Environment::height);
+
+		if (navigationEditorMode) {
+			navigationEditorDrawNavigation();
+			navigationEditorDrawPoints();
+		}
+
+		renderer.PopMatrix();
+		renderer.PopProjectionMatrix();
+		renderer.shaderManager.PopShader();
+
+		if (npcNameText) {
+			Eigen::Matrix4f proj = MakePerspectiveMatrix(1.0f / 1.5f,
+				static_cast<float>(Environment::width) / static_cast<float>(Environment::height),
+				Environment::CONST_Z_NEAR, Environment::CONST_Z_FAR);
+			for (auto& npc : npcs) {
+				if (npc) npc->drawName(*npcNameText, currentView, proj);
+			}
+			if (player) player->drawHealthBar(renderer, currentView, proj);
+			for (auto& npc : npcs) {
+				if (npc) npc->drawHealthBar(renderer, currentView, proj);
+			}
+		}
+		drawDarklandsFlash();
 	}
 
 	bool Location::setNavigationAreaAvailable(const std::string& areaName, bool available)
@@ -1057,6 +1208,8 @@ namespace ZL
 
 	void Location::update(int64_t delta)
 	{
+		updateDarklandsFlash(delta);
+
 		for (auto& intObj : interactiveObjects) {
 			intObj.update(delta);
 		}

src/Location.h

@@ -83,6 +83,11 @@ namespace ZL
 
 		std::vector<TriggerZone> triggerZones;
 
+		bool isDarklands = false;
+
+		// Returns false if a transition is already in progress (guards against double-press).
+		bool startDarklandsTransition();
+
 		// Navigation editor — toggle with 'N', save with 'B', right-click to finalize polygon
 		bool navigationEditorMode = false;
 
@@ -117,6 +122,7 @@ namespace ZL
 		void drawGame();
 		void drawShadowDepthPass();
 		void drawGameWithShadows();
+		void drawGameDarklands();
 
 		bool setNavigationAreaAvailable(const std::string& areaName, bool available);
 
@@ -137,6 +143,17 @@ namespace ZL
 		Inventory& inventory;		
 
 	private:
+		// White-flash transition state for darklands toggle
+		float darklandsFlashAlpha = 0.0f;
+		bool  darklandsFlashActive = false;
+		bool  darklandsFlashFadingIn = true;
+		VertexRenderStruct darklandsFlashQuad;
+		float darklandsFlashQuadW = -1.0f;
+		float darklandsFlashQuadH = -1.0f;
+
+		void updateDarklandsFlash(int64_t deltaMs);
+		void drawDarklandsFlash();
+
 		void resolveCharacterCollisions();
 		void updateDynamicReplans(int64_t deltaMs);
 		void loadTeleportZones(const std::string& jsonPath, const char* zipFile);

src/items/GameObjectLoader.cpp

@@ -45,9 +45,10 @@ namespace ZL {
 	static GameObjectData parseGameObjectData(const json& item)
 	{
 		GameObjectData data;
-		data.name        = item.value("name", "Unknown");
-		data.texturePath = item.value("texturePath", "");
-		data.meshPath    = item.value("meshPath", "");
+		data.name                = item.value("name", "Unknown");
+		data.texturePath         = item.value("texturePath", "");
+		data.textureDarkandsPath = item.value("textureDarkandsPath", "");
+		data.meshPath            = item.value("meshPath", "");
 		data.rotationX   = item.value("rotationX", 0.0f);
 		data.rotationY   = item.value("rotationY", 0.0f);
 		data.rotationZ   = item.value("rotationZ", 0.0f);
@@ -110,6 +111,8 @@ namespace ZL {
 		obj.name = data.name;
 
 		obj.texture = renderer.textureManager.LoadFromPng(data.texturePath, zipPath);
+		if (!data.textureDarkandsPath.empty())
+			obj.textureDarklands = renderer.textureManager.LoadFromPng(data.textureDarkandsPath, zipPath);
 
 		if (data.meshPath.size() > 4 && data.meshPath.compare(data.meshPath.size() - 4, 4, ".bin") == 0)
 			obj.mesh.data = LoadModelFromBinFile(data.meshPath, zipPath);

src/items/GameObjectLoader.h

@@ -15,6 +15,7 @@ namespace ZL {
 	struct GameObjectData {
 		std::string name;
 		std::string texturePath;
+		std::string textureDarkandsPath;
 		std::string meshPath;
 		float rotationX = 0.0f;
 		float rotationY = 0.0f;

src/items/InteractiveObject.cpp

@@ -117,6 +117,32 @@ namespace ZL {
         }
     }
 
+    void InteractiveObject::drawDarklands(Renderer& renderer) const {
+        if (!isActive || !loadedObject.textureDarklands) return;
+
+        if (alpha < 0.999f) {
+            glEnable(GL_BLEND);
+            glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+        }
+
+        renderer.PushMatrix();
+        renderer.TranslateMatrix(position);
+        if (rotationY != 0.f) {
+            renderer.TranslateMatrix(pivot);
+            renderer.RotateMatrix(Eigen::AngleAxisf(rotationY, Eigen::Vector3f::UnitY()).toRotationMatrix());
+            renderer.TranslateMatrix(-pivot);
+        }
+        if (scale != 1.f)
+            renderer.ScaleMatrix(scale);
+        renderer.RenderUniform1i(textureUniformName, 0);
+        renderer.RenderUniform1f("uAlpha", alpha);
+        glBindTexture(GL_TEXTURE_2D, loadedObject.textureDarklands->getTexID());
+        renderer.DrawVertexRenderStruct(loadedObject.mesh);
+        renderer.PopMatrix();
+
+        renderer.RenderUniform1f("uAlpha", 1.0f);
+    }
+
     void InteractiveObject::draw(Renderer& renderer) const {
         if (!isActive || !loadedObject.texture) return;
 

src/items/InteractiveObject.h

@@ -13,6 +13,7 @@ namespace ZL {
 
 	struct LoadedGameObject {
 		std::shared_ptr<Texture> texture;
+		std::shared_ptr<Texture> textureDarklands;
 		VertexRenderStruct mesh;
 		std::string name;
 	};
@@ -52,6 +53,7 @@ namespace ZL {
 		void fadeTo(float targetAlpha, float durationSec, std::function<void()> onComplete = {});
 		void update(int64_t deltaMs);
 		void draw(Renderer& renderer) const;
+		void drawDarklands(Renderer& renderer) const;
 	};
 
 } // namespace ZL