[DEV] tutorial 18 'player movement' implementation

src/engineTester/MainGameLoop.java

@@ -12,6 +12,7 @@ import org.lwjgl.openvr.Texture;
 import entities.Camera;
 import entities.Entity;
 import entities.Light;
+import entities.Player;
 import models.RawModel;
 import models.TexturedModel;
 import renderEngine.DisplayManager;
@@ -22,6 +23,8 @@ import renderEngine.OBJLoader;
 import renderEngine.EntityRenderer;
 import shaders.StaticShader;
 import terrains.Terrain;
+import terrains.TerrainTexture;
+import terrains.TerrainTexturePack;
 import textures.ModelTexture;
 
 /**
@@ -57,14 +60,28 @@ public class MainGameLoop {
 				new ModelTexture(loader.loadTexture("grassTexture")));
 		grassModel.getTexture().setHasTransparency(true);
 		grassModel.getTexture().setUseFakeLighting(true);
+		
+		TexturedModel flowerModel = new TexturedModel(OBJLoader.loadObjModel("grassModel", loader),
+				new ModelTexture(loader.loadTexture("flower")));
+		flowerModel.getTexture().setHasTransparency(true);
+		flowerModel.getTexture().setUseFakeLighting(true);
+		
 		TexturedModel fernModel = new TexturedModel(OBJLoader.loadObjModel("fern", loader),
 				new ModelTexture(loader.loadTexture("fern")));
 		fernModel.getTexture().setHasTransparency(true);
 		
 		Light light = new Light(new Vector3f(3000,2000,2000), new Vector3f(1,1,1));
+
+		TerrainTexture backgroundTexture = new TerrainTexture(loader.loadTexture("grass"));
+		TerrainTexture rTexture = new TerrainTexture(loader.loadTexture("dirt"));
+		TerrainTexture gTexture = new TerrainTexture(loader.loadTexture("grassFlowers"));
+		TerrainTexture bTexture = new TerrainTexture(loader.loadTexture("path"));
+		TerrainTexturePack texturePack = new TerrainTexturePack(backgroundTexture, rTexture, gTexture, bTexture);
+
+		TerrainTexture blendMap = new TerrainTexture(loader.loadTexture("blendMap"));
 		
-		Terrain terrain = new Terrain(0,-1,loader, new ModelTexture(loader.loadTexture("grass")));
+		Terrain terrain = new Terrain(0,-1,loader, texturePack, blendMap);
-		Terrain terrain2 = new Terrain(-1,-1,loader, new ModelTexture(loader.loadTexture("grass")));
+		Terrain terrain2 = new Terrain(-1,-1,loader, texturePack, blendMap);
 		
 		Camera camera = new Camera();
 
@@ -81,8 +98,16 @@ public class MainGameLoop {
 			entities.add(new Entity(fernModel,
 					new Vector3f(random.nextFloat()*800 - 400, 0, random.nextFloat() * -600),
 					new Vector3f(0,0,0),0.6f));
+			entities.add(new Entity(flowerModel,
+					new Vector3f(random.nextFloat()*800 - 400, 0, random.nextFloat() * -600),
+					new Vector3f(0,0,0),1.5f));
 		}
 		
+		TexturedModel stanfordBunnyModel = new TexturedModel(OBJLoader.loadObjModel("bunny", loader),
+				new ModelTexture(loader.loadTexture("white")));
+		
+		Player player = new Player(stanfordBunnyModel, new Vector3f(0,0,-50), new Vector3f(0,0,0), 1);
+		
 		MasterRenderer renderer = new MasterRenderer();
 		manager.setDrawer(new DisplayManagerDraw() {
 			@Override
@@ -91,8 +116,10 @@ public class MainGameLoop {
 				//entity.increaseRotation(0, 0, 0.01f);
 				//entity.increaseRotation(0.01f, 0.02f, 0.0f);
 				camera.move();
+				player.move();
 				renderer.processTerrain(terrain);
 				renderer.processTerrain(terrain2);
+				renderer.processEntity(player);
 				for (Entity entity : entities) {
 					renderer.processEntity(entity);
 				}

src/entities/Camera.java

@@ -14,17 +14,11 @@ public class Camera {
 		
 	}
 	public void move() {
-		if (DisplayManager.isKeyDown('w')) {
+		if (DisplayManager.isKeyDown('q')) {
-			position.z -= 0.8f;
+			position.y += 0.8f;
 		}
-		if (DisplayManager.isKeyDown('s')) {
+		if (DisplayManager.isKeyDown('z')) {
-			position.z += 0.8f;
+			position.y -= 0.8f;
-		}
-		if (DisplayManager.isKeyDown('d')) {
-			position.x += 0.8f;
-		}
-		if (DisplayManager.isKeyDown('a')) {
-			position.x -= 0.8f;
 		}
 	}
 

src/entities/Player.java

@@ -0,0 +1,94 @@
+package entities;
+
+import javax.vecmath.Vector3f;
+
+import models.TexturedModel;
+import renderEngine.DisplayManager;
+
+public class Player extends Entity {
+
+	private static final float RUN_SPEED = 20;
+	private static final float TRUN_SPEED = (float) Math.toRadians(160);
+	private static final float GRAVITY = -50;
+	private static final float JUMP_POWER = 30;
+
+	private static final float TERRAIN_HEIGHT = 0;
+	
+	private float currentSpeed = 0;
+	private float currentTurnSpeed = 0;
+	private float upwardSpeed = 0;
+	
+	private boolean isInAir = false;
+	
+	public Player(TexturedModel model, Vector3f position, Vector3f rotation, float scale) {
+		super(model, position, rotation, scale);
+
+	}
+
+	public void move() {
+		checkInputs();
+		if (isInAir == false) {
+			super.increaseRotation(0, this.currentTurnSpeed * DisplayManager.getFrameTimeSecconds(), 0);
+		}
+		float distance = currentSpeed * DisplayManager.getFrameTimeSecconds();
+		float dx = (float) (distance * Math.sin(super.getRotation().y));
+		float dz = (float) (distance * Math.cos(super.getRotation().y));
+		super.increasePosition(dx, 0, dz);
+		upwardSpeed += GRAVITY * DisplayManager.getFrameTimeSecconds();
+		super.increasePosition(0, upwardSpeed * DisplayManager.getFrameTimeSecconds(), 0);
+		if (super.getPosition().y < TERRAIN_HEIGHT) {
+			upwardSpeed = 0;
+			super.getPosition().y = TERRAIN_HEIGHT;
+			isInAir = false;
+		}
+	}
+	
+	private void jump() {
+		if (isInAir == true) {
+			return;
+		}
+		this.upwardSpeed = JUMP_POWER;
+		isInAir = true;
+	}
+	
+	public void checkInputs() {
+		if (DisplayManager.isKeyDown('w') && DisplayManager.isKeyDown('s')) {
+			this.currentSpeed = 0;
+		} else if (DisplayManager.isKeyDown('w')) {
+			this.currentSpeed = RUN_SPEED;
+		} else if (DisplayManager.isKeyDown('s')) {
+			this.currentSpeed = -RUN_SPEED;
+		} else {
+			this.currentSpeed = 0; 
+		}
+		if (DisplayManager.isKeyDown('d') && DisplayManager.isKeyDown('a')) {
+			this.currentTurnSpeed = 0;
+		} else if (DisplayManager.isKeyDown('a')) {
+			this.currentTurnSpeed = TRUN_SPEED;
+		} else if (DisplayManager.isKeyDown('d')) {
+			this.currentTurnSpeed = -TRUN_SPEED;
+		} else {
+			this.currentTurnSpeed = 0; 
+		}
+		if (DisplayManager.isKeyDown(' ')) {
+			this.jump(); 
+		}
+		//System.out.println("position = " + super.getPosition());
+		/*
+		if (DisplayManager.isKeyDown('d')) {
+			position.x += 0.8f;
+		}
+		if (DisplayManager.isKeyDown('a')) {
+			position.x -= 0.8f;
+		}
+		if (DisplayManager.isKeyDown('q')) {
+			position.y += 0.8f;
+		}
+		if (DisplayManager.isKeyDown('z')) {
+			position.y -= 0.8f;
+		}
+		*/
+		
+	}
+	
+}

src/renderEngine/DisplayManager.java

@@ -26,48 +26,15 @@ public class DisplayManager {
 	private static final int WIDTH = 1280;
 	private static final int HEIGHT = 720;
 	private static final int FPS_CAP = 60;
-	private static final String TITLE = "Our First Display";
+	private static final String TITLE = "Open GL tutorial";
+	
+	private static long lastFrameTime;
+	private static float delta;
+	
 	private DisplayManagerDraw drawer = null;
 	public void setDrawer(DisplayManagerDraw drawer) {
 		this.drawer = drawer;
 	}
-//	/**
-//	 * Creates a display window on which we can render our game. The dimensions
-//	 * of the window are determined by setting the display mode. By using
-//	 * "glViewport" we tell OpenGL which part of the window we want to render
-//	 * our game onto. We indicated that we want to use the entire window.
-//	 */
-//	public static void createDisplay() {
-//		ContextAttribs attribs = new ContextAttribs(3, 2).withForwardCompatible(true).withProfileCore(true);
-//		try {
-//			Display.setDisplayMode(new DisplayMode(WIDTH, HEIGHT));
-//			Display.create(new PixelFormat(), attribs);
-//			Display.setTitle(TITLE);
-//		} catch (LWJGLException e) {
-//			e.printStackTrace();
-//		}
-//		GL11.glViewport(0, 0, WIDTH, HEIGHT);
-//	}
-//
-//	/**
-//	 * This method is used to update the display at the end of every frame. When
-//	 * we have set up a rendering process this method will display whatever
-//	 * we've been rendering onto the screen. The "sync" method is used here to
-//	 * cap the frame rate. Without this the computer would just try to run the
-//	 * game as fast as it possibly can, doing more work than it needs to.
-//	 */
-//	public static void updateDisplay() {
-//		Display.sync(FPS_CAP);
-//		Display.update();
-//	}
-//
-//	/**
-//	 * This closes the window when the game is closed.
-//	 */
-//	public static void closeDisplay() {
-//		Display.destroy();
-//	}
-
 	// The window handle
 	private static long window;
 
@@ -106,6 +73,7 @@ public class DisplayManager {
 	private static boolean valueD = false;
 	private static boolean valueA = false;
 	private static boolean valueW = false;
+	private static boolean valueSPACE = false;
 	public static boolean isKeyDown(char value) {
 		if (value == 's') {
 			return valueS;
@@ -125,6 +93,9 @@ public class DisplayManager {
 		if (value == 'a') {
 			return valueA;
 		}
+		if (value == ' ') {
+			return valueSPACE;
+		}
 		return false;
 	}
 
@@ -206,6 +177,15 @@ public class DisplayManager {
 					valueW = false;
 				}
 			}
+			if ( key == GLFW_KEY_SPACE ) {
+				if (action == GLFW_PRESS ) {
+					System.out.println("Key SPACE is pressed");
+					valueSPACE = true;
+				} else if (action == GLFW_RELEASE ) {
+					System.out.println("Key SPACE is release");
+					valueSPACE = false;
+				}
+			}
 		});
 
 		// Get the thread stack and push a new frame
@@ -234,6 +214,9 @@ public class DisplayManager {
 
 		// Make the window visible
 		glfwShowWindow(window);
+		
+		lastFrameTime = getCurrentTime();
+		
 	}
 
 	public void loop() {
@@ -241,6 +224,9 @@ public class DisplayManager {
 		// Run the rendering loop until the user has attempted to close
 		// the window or has pressed the ESCAPE key.
 		while ( !glfwWindowShouldClose(window) ) {
+			long currentFrameTime = getCurrentTime();
+			delta = (currentFrameTime-lastFrameTime)/1000f;
+			lastFrameTime = currentFrameTime;
 			glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // clear the framebuffer
 			if (this.drawer != null) {
 				this.drawer.draw();
@@ -252,5 +238,14 @@ public class DisplayManager {
 			glfwPollEvents();
 		}
 	}
+	
+	public static float getFrameTimeSecconds() {
+		return delta;
+	}
+	
+	private static long getCurrentTime() {
+		return System.currentTimeMillis();
+	}
+	
 
 }

src/renderEngine/Loader.java

@@ -57,7 +57,6 @@ public class Loader {
 	}
 	
     private int loadPNGTexture(String filename, int textureUnit) {
-    	ByteBuffer bufIn = null;
     	ByteBuffer buf = null;
         int tWidth = 0;
         int tHeight = 0;
@@ -71,7 +70,8 @@ public class Loader {
             tHeight = decoder.getHeight();
             // Decode the PNG file in a ByteBuffer
             buf = ByteBuffer.allocateDirect(4 * decoder.getWidth() * decoder.getHeight());
-            decoder.decodeFlipped(buf, decoder.getWidth() * 4, Format.RGBA);
+            //decoder.decodeFlipped(buf, decoder.getWidth() * 4, Format.RGBA);
+            decoder.decode(buf, decoder.getWidth() * 4, Format.RGBA);
             buf.flip();
             in.close();
         } catch (IOException e) {
@@ -96,10 +96,10 @@ public class Loader {
         GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T, GL11.GL_REPEAT);
          
         // Setup what to do when the texture has to be scaled
-//        GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
+        GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
-//        GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_LINEAR_MIPMAP_LINEAR);
+        GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_LINEAR_MIPMAP_LINEAR);
-        GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_LINEAR);
+//        GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_LINEAR);
-        GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_LINEAR);
+//        GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_LINEAR);
          
         this.exitOnGLError("loadPNGTexture");
          

src/renderEngine/OBJLoader.java

@@ -6,7 +6,8 @@ import objConverter.OBJFileLoader;
 
 public class OBJLoader {
 	public static RawModel loadObjModel(String fileName, Loader loader) {
-		ModelData data = OBJFileLoader.loadOBJ("tree");
+		System.out.println("Load file " + fileName);
+		ModelData data = OBJFileLoader.loadOBJ(fileName);
 		return loader.loadToVAO(data.getVertices(), data.getTextureCoords(), data.getNormals(), data.getIndices());
 	}
 }

src/renderEngine/TerrainRenderer.java

@@ -13,6 +13,7 @@ import org.lwjgl.opengl.GL30;
 import models.RawModel;
 import shaders.TerrainShader;
 import terrains.Terrain;
+import terrains.TerrainTexturePack;
 import textures.ModelTexture;
 import toolbox.Maths;
 
@@ -24,6 +25,7 @@ public class TerrainRenderer {
 		this.shader = shader;
 		shader.start();
 		shader.loadProjectionMatrix(projectionMatrix);
+		shader.connectTextureUnits();
 		shader.stop();
 	}
 
@@ -43,12 +45,24 @@ public class TerrainRenderer {
 		GL20.glEnableVertexAttribArray(0);
 		GL20.glEnableVertexAttribArray(1);
 		GL20.glEnableVertexAttribArray(2);
-		ModelTexture texture = terrain.getTexture();
+		bindTextures(terrain);
-		shader.loadShineVariable(texture.getShineDamper(), texture.getReflectivity());
+		shader.loadShineVariable(1, 0);
-		GL13.glActiveTexture(GL13.GL_TEXTURE0);
-		GL11.glBindTexture(GL11.GL_TEXTURE_2D, texture.getTexturedID());
 	}
 
+	private void bindTextures(Terrain terrain) {
+		TerrainTexturePack texturePack = terrain.getTexturePack();
+		GL13.glActiveTexture(GL13.GL_TEXTURE0);
+		GL11.glBindTexture(GL11.GL_TEXTURE_2D, texturePack.getBackgroundTexture().getTextureId());
+		GL13.glActiveTexture(GL13.GL_TEXTURE1);
+		GL11.glBindTexture(GL11.GL_TEXTURE_2D, texturePack.getrTexture().getTextureId());
+		GL13.glActiveTexture(GL13.GL_TEXTURE2);
+		GL11.glBindTexture(GL11.GL_TEXTURE_2D, texturePack.getgTexture().getTextureId());
+		GL13.glActiveTexture(GL13.GL_TEXTURE3);
+		GL11.glBindTexture(GL11.GL_TEXTURE_2D, texturePack.getbTexture().getTextureId());
+		GL13.glActiveTexture(GL13.GL_TEXTURE4);
+		GL11.glBindTexture(GL11.GL_TEXTURE_2D, terrain.getBlendMap().getTextureId());
+	}
+	
 	private void unbindTexturedModel() {
 		GL20.glDisableVertexAttribArray(0);
 		GL20.glDisableVertexAttribArray(1);

src/shaders/ShaderProgram.java

@@ -60,10 +60,15 @@ public abstract class ShaderProgram {
 	protected void loadFloat(int location, float value) {
 		GL20.glUniform1f(location, value);
 	}
+	
+	protected void loadInt(int location, int value) {
+		GL20.glUniform1i(location, value);
+	}
 
 	protected void loadVector(int location, Vector3f value) {
 		GL20.glUniform3f(location, value.x, value.y, value.z);
 	}
+	
 	protected void loadBoolean(int location, boolean value) {
 		//System.out.println("set value " + value + " " + (value==true?1.0f:0.0f));
 		GL20.glUniform1f(location, value==true?1.0f:0.0f);

src/shaders/TerrainShader.java

@@ -19,6 +19,11 @@ public class TerrainShader  extends ShaderProgram {
 	private int location_reflectivity;
 	private int location_shineDamper;
 	private int location_skyColor;
+	private int location_backgroundTexture;
+	private int location_rTexture;
+	private int location_gTexture;
+	private int location_bTexture;
+	private int location_blendMap;
 
 	public TerrainShader() {
 		super(VERTEX_FILE, FRAGMENT_FILE);
@@ -41,6 +46,19 @@ public class TerrainShader  extends ShaderProgram {
 		location_reflectivity = super.getUniformLocation("reflectivity");
 		location_shineDamper = super.getUniformLocation("shineDamper");
 		location_skyColor = super.getUniformLocation("skyColor");
+		location_backgroundTexture = super.getUniformLocation("backgroundTexture");
+		location_rTexture = super.getUniformLocation("rTexture");
+		location_gTexture = super.getUniformLocation("gTexture");
+		location_bTexture = super.getUniformLocation("bTexture");
+		location_blendMap = super.getUniformLocation("blendMap");
+	}
+	
+	public void connectTextureUnits() {
+		super.loadInt(location_backgroundTexture, 0);
+		super.loadInt(location_rTexture, 1);
+		super.loadInt(location_gTexture, 2);
+		super.loadInt(location_bTexture, 3);
+		super.loadInt(location_blendMap, 4);
 	}
 	
 	public void loadSkyColour(Vector3f color) {

src/shaders/terrainFragmentShader.txt

@@ -9,7 +9,12 @@ in float visibility;
 
 out vec4 out_Color;
 
-uniform sampler2D textureSampler;
+uniform sampler2D backgroundTexture;
+uniform sampler2D rTexture;
+uniform sampler2D gTexture;
+uniform sampler2D bTexture;
+uniform sampler2D blendMap;
+
 uniform vec3 lightColour;
 uniform float reflectivity;
 uniform float shineDamper;
@@ -18,6 +23,17 @@ uniform vec3 skyColor;
 
 void main(void) {
 	
+	vec4 blendMapColour = texture(blendMap, pass_textureCoordinates);
+	
+	float backTextureAmount = 1 - (blendMapColour.r + blendMapColour.g + blendMapColour.b);
+	vec2 tiledCoords = pass_textureCoordinates * 40.0;
+	vec4 backgroundTextureColour = texture(backgroundTexture, tiledCoords) * backTextureAmount;
+	vec4 rTextureColour = texture(rTexture, tiledCoords) * blendMapColour.r;
+	vec4 gTextureColour = texture(gTexture, tiledCoords) * blendMapColour.g;
+	vec4 bTextureColour = texture(bTexture, tiledCoords) * blendMapColour.b;
+	
+	vec4 totalColour = backgroundTextureColour + rTextureColour + gTextureColour + bTextureColour;
+	
 	vec3 unitNormal = normalize(surfaceNormal);
 	vec3 unitLightVector = normalize(toLightVector);
 	
@@ -35,7 +51,7 @@ void main(void) {
 	float damperFactor = pow(specularFactor, shineDamper);
 	vec3 finalSpecular = damperFactor * reflectivity * lightColour;
 	
-	out_Color = vec4(diffuse,1.0) * texture(textureSampler,pass_textureCoordinates) + vec4(finalSpecular, 1.0); 
+	out_Color = vec4(diffuse,1.0) * totalColour + vec4(finalSpecular, 1.0); 
 	out_Color = mix(vec4(skyColor,1.0), out_Color, visibility);
 }
 

src/terrains/Terrain.java

@@ -11,10 +11,12 @@ public class Terrain {
 	private float x;
 	private float z;
 	private RawModel model;
-	private ModelTexture texture;
+	private TerrainTexturePack texturePack;
+	private TerrainTexture blendMap;
 	
-	public Terrain(int girdX, int girdZ, Loader loader, ModelTexture texture) {
+	public Terrain(int girdX, int girdZ, Loader loader, TerrainTexturePack texturePack, TerrainTexture blendMap) {
-		this.texture = texture;
+		this.texturePack = texturePack;
+		this.blendMap = blendMap;
 		this.x = girdX * SIZE;
 		this.z = girdZ * SIZE;
 		this.model = generateTerrain(loader);
@@ -35,8 +37,8 @@ public class Terrain {
 				normals[vertexPointer*3] = 0;
 				normals[vertexPointer*3+1] = 1;
 				normals[vertexPointer*3+2] = 0;
-				textureCoords[vertexPointer*2] = (float)j/((float)VERTEX_COUNT - 1)*100;
+				textureCoords[vertexPointer*2] = (float)j/((float)VERTEX_COUNT - 1);
-				textureCoords[vertexPointer*2+1] = (float)i/((float)VERTEX_COUNT - 1)*100;
+				textureCoords[vertexPointer*2+1] = (float)i/((float)VERTEX_COUNT - 1);
 				vertexPointer++;
 			}
 		}
@@ -82,11 +84,11 @@ public class Terrain {
 		this.model = model;
 	}
 
-	public ModelTexture getTexture() {
+	public TerrainTexture getBlendMap() {
-		return texture;
+		return blendMap;
 	}
 
-	public void setTexture(ModelTexture texture) {
+	public TerrainTexturePack getTexturePack() {
-		this.texture = texture;
+		return texturePack;
 	}
 }

src/terrains/TerrainTexture.java

@@ -0,0 +1,18 @@
+package terrains;
+
+public class TerrainTexture {
+	private int textureId;
+
+	public TerrainTexture(int textureId) {
+		this.textureId = textureId;
+	}
+	
+	public int getTextureId() {
+		return textureId;
+	}
+
+	public void setTextureId(int textureId) {
+		this.textureId = textureId;
+	}
+
+}

src/terrains/TerrainTexturePack.java

@@ -0,0 +1,32 @@
+package terrains;
+
+public class TerrainTexturePack {
+	private TerrainTexture backgroundTexture;
+	private TerrainTexture rTexture;
+	private TerrainTexture gTexture;
+	private TerrainTexture bTexture;
+
+	public TerrainTexturePack(TerrainTexture backgroundTexture, TerrainTexture rTexture, TerrainTexture gTexture,
+			TerrainTexture bTexture) {
+		this.backgroundTexture = backgroundTexture;
+		this.rTexture = rTexture;
+		this.gTexture = gTexture;
+		this.bTexture = bTexture;
+	}
+	
+	public TerrainTexture getBackgroundTexture() {
+		return backgroundTexture;
+	}
+
+	public TerrainTexture getrTexture() {
+		return rTexture;
+	}
+
+	public TerrainTexture getgTexture() {
+		return gTexture;
+	}
+
+	public TerrainTexture getbTexture() {
+		return bTexture;
+	}
+}