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标题: 请教AngryBots脚本中的几个问题？ [打印本页]

作者: 她。 时间: 2013-4-27 09:33
标题: 请教AngryBots脚本中的几个问题？
这几天看了一下AngryBots中的脚本，无奈水平有限有很多问题不明白。在脚本PlayerMoveController里面 Update函数中：

。。。。

// On PC, the cursor point is the mouse position

         var cursorScreenPosition : Vector3 = Input.mousePosition;



         // Find out where the mouse ray intersects with the movement plane of the player

         var cursorWorldPosition : Vector3 = ScreenPointToWorldPointOnPlane (cursorScreenPosition, playerMovementPlane, mainCamera);



         var halfWidth : float = Screen.width / 2.0f;

         var halfHeight : float = Screen.height / 2.0f;

         var maxHalf : float = Mathf.Max (halfWidth, halfHeight);



         // Acquire the relative screen position

         var posRel : Vector3 = cursorScreenPosition - Vector3 (halfWidth, halfHeight, cursorScreenPosition.z);

         posRel.x /= maxHalf;

         posRel.y /= maxHalf;



         cameraAdjustmentVector = posRel.x * screenMovementRight + posRel.y * screenMovementForward;

         cameraAdjustmentVector.y = 0.0;



         // The facing direction is the direction from the character to the cursor world position

         motor.facingDirection = (cursorWorldPosition - character.position);

         motor.facingDirection.y = 0;



         // Draw the cursor nicely

         HandleCursorAlignment (cursorWorldPosition);

..............

// HANDLE CAMERA POSITION



// Set the target position of the camera to point at the focus point

var cameraTargetPosition : Vector3 = character.position + initOffsetToPlayer + cameraAdjustmentVector * cameraPreview;

// Apply some smoothing to the camera movement

mainCameraTransform.position = Vector3.SmoothDamp (mainCameraTransform.position, cameraTargetPosition, cameraVelocity, cameraSmoothing);

这段处理摄像机位置的代码中，变量cameraAdjustmentVector或者说posRel到底是什么意义呢？

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