package org.andengine.entity.sprite; import org.andengine.engine.camera.Camera; import org.andengine.entity.shape.RectangularShape; import org.andengine.entity.sprite.vbo.HighPerformanceSpriteVertexBufferObject; import org.andengine.entity.sprite.vbo.ISpriteVertexBufferObject; import org.andengine.opengl.shader.PositionColorTextureCoordinatesShaderProgram; import org.andengine.opengl.shader.ShaderProgram; import org.andengine.opengl.shader.constants.ShaderProgramConstants; import org.andengine.opengl.texture.region.ITextureRegion; import org.andengine.opengl.util.GLState; import org.andengine.opengl.vbo.DrawType; import org.andengine.opengl.vbo.VertexBufferObjectManager; import org.andengine.opengl.vbo.attribute.VertexBufferObjectAttributes; import org.andengine.opengl.vbo.attribute.VertexBufferObjectAttributesBuilder; import android.opengl.GLES20; /** * (c) 2010 Nicolas Gramlich * (c) 2011 Zynga Inc. * * @author Nicolas Gramlich * @since 19:22:38 - 09.03.2010 */ public class Sprite extends RectangularShape { // =========================================================== // Constants // =========================================================== public static final int VERTEX_INDEX_X = 0; public static final int VERTEX_INDEX_Y = Sprite.VERTEX_INDEX_X + 1; public static final int COLOR_INDEX = Sprite.VERTEX_INDEX_Y + 1; public static final int TEXTURECOORDINATES_INDEX_U = Sprite.COLOR_INDEX + 1; public static final int TEXTURECOORDINATES_INDEX_V = Sprite.TEXTURECOORDINATES_INDEX_U + 1; public static final int VERTEX_SIZE = 2 + 1 + 2; public static final int VERTICES_PER_SPRITE = 4; public static final int SPRITE_SIZE = Sprite.VERTEX_SIZE * Sprite.VERTICES_PER_SPRITE; public static final VertexBufferObjectAttributes VERTEXBUFFEROBJECTATTRIBUTES_DEFAULT = new VertexBufferObjectAttributesBuilder(3) .add(ShaderProgramConstants.ATTRIBUTE_POSITION_LOCATION, ShaderProgramConstants.ATTRIBUTE_POSITION, 2, GLES20.GL_FLOAT, false) .add(ShaderProgramConstants.ATTRIBUTE_COLOR_LOCATION, ShaderProgramConstants.ATTRIBUTE_COLOR, 4, GLES20.GL_UNSIGNED_BYTE, true) .add(ShaderProgramConstants.ATTRIBUTE_TEXTURECOORDINATES_LOCATION, ShaderProgramConstants.ATTRIBUTE_TEXTURECOORDINATES, 2, GLES20.GL_FLOAT, false) .build(); // =========================================================== // Fields // =========================================================== protected final ITextureRegion mTextureRegion; protected final ISpriteVertexBufferObject mSpriteVertexBufferObject; protected boolean mFlippedVertical; protected boolean mFlippedHorizontal; // =========================================================== // Constructors // =========================================================== public Sprite(final float pX, final float pY, final ITextureRegion pTextureRegion, final VertexBufferObjectManager pVertexBufferObjectManager) { this(pX, pY, pTextureRegion.getWidth(), pTextureRegion.getHeight(), pTextureRegion, pVertexBufferObjectManager, DrawType.STATIC); } public Sprite(final float pX, final float pY, final ITextureRegion pTextureRegion, final VertexBufferObjectManager pVertexBufferObjectManager, final ShaderProgram pShaderProgram) { this(pX, pY, pTextureRegion.getWidth(), pTextureRegion.getHeight(), pTextureRegion, pVertexBufferObjectManager, DrawType.STATIC, pShaderProgram); } public Sprite(final float pX, final float pY, final ITextureRegion pTextureRegion, final VertexBufferObjectManager pVertexBufferObjectManager, final DrawType pDrawType) { this(pX, pY, pTextureRegion.getWidth(), pTextureRegion.getHeight(), pTextureRegion, pVertexBufferObjectManager, pDrawType); } public Sprite(final float pX, final float pY, final ITextureRegion pTextureRegion, final VertexBufferObjectManager pVertexBufferObjectManager, final DrawType pDrawType, final ShaderProgram pShaderProgram) { this(pX, pY, pTextureRegion.getWidth(), pTextureRegion.getHeight(), pTextureRegion, pVertexBufferObjectManager, pDrawType, pShaderProgram); } public Sprite(final float pX, final float pY, final ITextureRegion pTextureRegion, final ISpriteVertexBufferObject pVertexBufferObject) { this(pX, pY, pTextureRegion.getWidth(), pTextureRegion.getHeight(), pTextureRegion, pVertexBufferObject); } public Sprite(final float pX, final float pY, final ITextureRegion pTextureRegion, final ISpriteVertexBufferObject pVertexBufferObject, final ShaderProgram pShaderProgram) { this(pX, pY, pTextureRegion.getWidth(), pTextureRegion.getHeight(), pTextureRegion, pVertexBufferObject, pShaderProgram); } public Sprite(final float pX, final float pY, final float pWidth, final float pHeight, final ITextureRegion pTextureRegion, final VertexBufferObjectManager pVertexBufferObjectManager) { this(pX, pY, pWidth, pHeight, pTextureRegion, pVertexBufferObjectManager, DrawType.STATIC); } public Sprite(final float pX, final float pY, final float pWidth, final float pHeight, final ITextureRegion pTextureRegion, final VertexBufferObjectManager pVertexBufferObjectManager, final ShaderProgram pShaderProgram) { this(pX, pY, pWidth, pHeight, pTextureRegion, pVertexBufferObjectManager, DrawType.STATIC, pShaderProgram); } public Sprite(final float pX, final float pY, final float pWidth, final float pHeight, final ITextureRegion pTextureRegion, final VertexBufferObjectManager pVertexBufferObjectManager, final DrawType pDrawType) { this(pX, pY, pWidth, pHeight, pTextureRegion, pVertexBufferObjectManager, pDrawType, PositionColorTextureCoordinatesShaderProgram.getInstance()); } public Sprite(final float pX, final float pY, final float pWidth, final float pHeight, final ITextureRegion pTextureRegion, final VertexBufferObjectManager pVertexBufferObjectManager, final DrawType pDrawType, final ShaderProgram pShaderProgram) { this(pX, pY, pWidth, pHeight, pTextureRegion, new HighPerformanceSpriteVertexBufferObject(pVertexBufferObjectManager, Sprite.SPRITE_SIZE, pDrawType, true, Sprite.VERTEXBUFFEROBJECTATTRIBUTES_DEFAULT), pShaderProgram); } public Sprite(final float pX, final float pY, final float pWidth, final float pHeight, final ITextureRegion pTextureRegion, final ISpriteVertexBufferObject pSpriteVertexBufferObject) { this(pX, pY, pWidth, pHeight, pTextureRegion, pSpriteVertexBufferObject, PositionColorTextureCoordinatesShaderProgram.getInstance()); } public Sprite(final float pX, final float pY, final float pWidth, final float pHeight, final ITextureRegion pTextureRegion, final ISpriteVertexBufferObject pSpriteVertexBufferObject, final ShaderProgram pShaderProgram) { super(pX, pY, pWidth, pHeight, pShaderProgram); this.mTextureRegion = pTextureRegion; this.mSpriteVertexBufferObject = pSpriteVertexBufferObject; this.setBlendingEnabled(true); this.initBlendFunction(pTextureRegion); this.onUpdateVertices(); this.onUpdateColor(); this.onUpdateTextureCoordinates(); } // =========================================================== // Getter & Setter // =========================================================== public ITextureRegion getTextureRegion() { return this.mTextureRegion; } public boolean isFlippedHorizontal() { return this.mFlippedHorizontal; } public void setFlippedHorizontal(final boolean pFlippedHorizontal) { if(this.mFlippedHorizontal != pFlippedHorizontal) { this.mFlippedHorizontal = pFlippedHorizontal; this.onUpdateTextureCoordinates(); } } public boolean isFlippedVertical() { return this.mFlippedVertical; } public void setFlippedVertical(final boolean pFlippedVertical) { if(this.mFlippedVertical != pFlippedVertical) { this.mFlippedVertical = pFlippedVertical; this.onUpdateTextureCoordinates(); } } public void setFlipped(final boolean pFlippedHorizontal, final boolean pFlippedVertical) { if((this.mFlippedHorizontal != pFlippedHorizontal) || (this.mFlippedVertical != pFlippedVertical)) { this.mFlippedHorizontal = pFlippedHorizontal; this.mFlippedVertical = pFlippedVertical; this.onUpdateTextureCoordinates(); } } // =========================================================== // Methods for/from SuperClass/Interfaces // =========================================================== @Override public ISpriteVertexBufferObject getVertexBufferObject() { return this.mSpriteVertexBufferObject; } @Override public void reset() { super.reset(); this.initBlendFunction(this.getTextureRegion().getTexture()); } @Override protected void preDraw(final GLState pGLState, final Camera pCamera) { super.preDraw(pGLState, pCamera); this.getTextureRegion().getTexture().bind(pGLState); this.mSpriteVertexBufferObject.bind(pGLState, this.mShaderProgram); } @Override protected void draw(final GLState pGLState, final Camera pCamera) { this.mSpriteVertexBufferObject.draw(GLES20.GL_TRIANGLE_STRIP, Sprite.VERTICES_PER_SPRITE); } @Override protected void postDraw(final GLState pGLState, final Camera pCamera) { this.mSpriteVertexBufferObject.unbind(pGLState, this.mShaderProgram); super.postDraw(pGLState, pCamera); } @Override protected void onUpdateVertices() { this.mSpriteVertexBufferObject.onUpdateVertices(this); } @Override protected void onUpdateColor() { this.mSpriteVertexBufferObject.onUpdateColor(this); } protected void onUpdateTextureCoordinates() { this.mSpriteVertexBufferObject.onUpdateTextureCoordinates(this); } // =========================================================== // Methods // =========================================================== // =========================================================== // Inner and Anonymous Classes // =========================================================== }