private void Handle3DControl(Object3D obj, float originZ) {
switch (Activity3Page.currentActionType) {
case Move:
// ---處理移動(Translate Position: X,Y)---begin
SimpleVector transPos =
new SimpleVector(
obj.getTranslation().x + deltaTranslatePositionX,
obj.getTranslation().y + deltaTranslatePositionY,
obj.getTranslation().z);
SimpleVector projectScreenV3 =
Interact2D.project3D2D(
world.getCamera(), frameBuffer, transPos); // (重要!!!)這可以知道3D物件在2D畫面的投影
if (projectScreenV3.x >= 0
&& projectScreenV3.y >= 0
&& projectScreenV3.x <= frameBuffer.getWidth()
&& projectScreenV3.y <= frameBuffer.getHeight()) {
obj.translate(deltaTranslatePositionX, deltaTranslatePositionY, 0);
}
deltaTranslatePositionX = 0;
deltaTranslatePositionY = 0;
// ---處理移動(Translate Position: X,Y)---end
// ---處理放大縮小(Scale)---begin
if (deltaScale != 0) {
float currentScale = obj.getScale() + deltaScale;
if (currentScale <= 0.5f) {
obj.setScale(0.5f);
} else if (currentScale >= 1.5f) {
obj.setScale(1.5f);
} else {
obj.setScale(currentScale);
}
deltaScale = 0;
}
// ---處理放大縮小(Scale)---end
break;
case Rotate:
// ---處理旋轉(Rotate)---begin
if (deltaRotateAngleX != 0) {
obj.rotateY(deltaRotateAngleX);
deltaRotateAngleX = 0;
}
if (deltaRotateAngleY != 0) {
obj.rotateX(deltaRotateAngleY);
deltaRotateAngleY = 0;
}
// ---處理旋轉(Rotate)---end
break;
case Depth:
// ---處理深度(Translate Depth: Z軸)---begin
float currentPosZ = obj.getTranslation().z + deltaTranslatePositionZ;
if (currentPosZ > originZ - ZaxisCanMoveDistance
&& currentPosZ < originZ + ZaxisCanMoveDistance) {
obj.translate(0, 0, deltaTranslatePositionZ);
}
deltaTranslatePositionZ = 0;
// ---處理深度(Translate Depth: Z軸)---end
break;
}
}
public void onDrawFrame(GL10 gl) {
// 程式已精簡過，備註：此部分必須寫在GL端，getPixel不能跳脫GL執行緒內
// 錯誤內容call to OpenGL ES API with no current context (logged once per
// thread)
if (combineImage) {
FrameBuffer fb = frameBuffer;
GLBitmap =
Bitmap.createBitmap(fb.getPixels(), fb.getWidth(), fb.getHeight(), Config.ARGB_8888);
Bitmap combineBitmap;
combineBitmap =
Bitmap.createBitmap(GLBitmap.getWidth(), GLBitmap.getHeight(), Bitmap.Config.ARGB_8888);
Canvas comboImage = new Canvas(combineBitmap);
comboImage.drawBitmap(GLBitmap, 0f, 0f, null);
comboImage.drawBitmap(Activity3Page.Activity3BitmapPaint, 0f, 0f, null);
saveImage(combineBitmap);
combineImage = false;
}
if (Activity3Page.currentEditStatus == EditStatus.Mode3D) {
gl.glShadeModel(GL10.GL_SMOOTH);
gl.glEnable(GL10.GL_DEPTH_TEST); // 啟動深度檢測(沒有看到的面就不會被畫)
float deltaTime = (System.currentTimeMillis() - currentSystemTime) / 1000.0f;
currentSystemTime = System.currentTimeMillis();
if (colorValue >= 255) {
colorValue = 255;
colorChangeSpeed = -colorChangeSpeed;
} else if (colorValue <= 0) {
colorValue = 0;
colorChangeSpeed = -colorChangeSpeed;
}
colorValue += (deltaTime * colorChangeSpeed);
switch (Activity3Page.currentAction3DObject) {
case DetectObject:
SimpleVector ray =
Interact2D.reproject2D3D(world.getCamera(), frameBuffer, (int) PointX, (int) PointY)
.normalize();
Object[] res =
world.calcMinDistanceAndObject3D(world.getCamera().getPosition(), ray, 1000);
if (res[1] != null) {
String name = null;
name = ((Object3D) res[1]).getName();
if (name == "Arch") {
Activity3Page.currentAction3DObject = Action3DObject.Arch;
} else if (name == "Box") {
Activity3Page.currentAction3DObject = Action3DObject.Box;
} else if (name == "Cylinder") {
Activity3Page.currentAction3DObject = Action3DObject.Cylinder;
}
}
case NoAction:
arch.setAdditionalColor(new RGBColor(0, 0, 0, 0)); // 原色
box.setAdditionalColor(new RGBColor(0, 0, 0, 0)); // 原色
cylinder.setAdditionalColor(new RGBColor(0, 0, 0, 0)); // 原色
break;
case Arch:
arch.setAdditionalColor(new RGBColor((int) colorValue, 0, 0, 255)); // 提示色
box.setAdditionalColor(new RGBColor(0, 0, 0, 0)); // 原色
cylinder.setAdditionalColor(new RGBColor(0, 0, 0, 0)); // 原色
Handle3DControl(arch, archOriginPosition.z);
break;
case Box:
arch.setAdditionalColor(new RGBColor(0, 0, 0, 0)); // 原色
box.setAdditionalColor(new RGBColor((int) colorValue, 0, 0, 255)); // 提示色
cylinder.setAdditionalColor(new RGBColor(0, 0, 0, 0)); // 原色
Handle3DControl(box, boxOriginPosition.z);
break;
case Cylinder:
arch.setAdditionalColor(new RGBColor(0, 0, 0, 0)); // 原色
box.setAdditionalColor(new RGBColor(0, 0, 0, 0)); // 原色
cylinder.setAdditionalColor(new RGBColor((int) colorValue, 0, 0, 255)); // 提示色
Handle3DControl(cylinder, cylinderOriginPosition.z);
break;
}
}
frameBuffer.clear(backgroundColor);
world.renderScene(frameBuffer);
world.draw(frameBuffer);
frameBuffer.display();
}