From cfc8ffed8af71714cc6378b412557d5fc03781d4 Mon Sep 17 00:00:00 2001
From: Peter Kohaut
Date: Tue, 20 Sep 2016 00:33:06 +0200
Subject: BLADERUNNER: fixed exit selection, added footstep sounds, added some
 debugging display (scene objects, regions, exits, walkboxes, lights?)

---
 engines/bladerunner/view.cpp | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

(limited to 'engines/bladerunner/view.cpp')

diff --git a/engines/bladerunner/view.cpp b/engines/bladerunner/view.cpp
index b3b6ad8ad2..f8acb91400 100644
--- a/engines/bladerunner/view.cpp
+++ b/engines/bladerunner/view.cpp
@@ -49,7 +49,7 @@ bool View::read(Common::ReadStream *stream) {
 void View::setFovX(float fovX) {
 	_fovX = fovX;
 
-	_viewportHalfWidth  = 320.0f;
+	_viewportHalfWidth = 320.0f;
 	_viewportHalfHeight = 240.0f;
 
 	_viewportDistance = 320.0f / tanf(_fovX / 2.0f);
@@ -60,17 +60,16 @@ void View::calculateSliceViewMatrix() {
 
 	m = m * rotationMatrixX(float(M_PI) / 2.0f);
 
-	Matrix4x3 a( -1.0f,  0.0f,  0.0f,  0.0f,
-	              0.0f, -1.0f,  0.0f,  0.0f,
-	              0.0f,  0.0f,  1.0f,  0.0f);
+	Matrix4x3 a(-1.0f, 0.0f, 0.0f, 0.0f,
+	            0.0f, -1.0f, 0.0f, 0.0f,
+	            0.0f, 0.0f, 1.0f, 0.0f);
 
 	m = a * m;
 
 	_sliceViewMatrix = m;
 }
 
-void View::calculateCameraPosition()
-{
+void View::calculateCameraPosition() {
 	Matrix4x3 invertedMatrix = invertMatrix(_sliceViewMatrix);
 
 	_cameraPosition.x = invertedMatrix(0, 3);
@@ -78,5 +77,12 @@ void View::calculateCameraPosition()
 	_cameraPosition.z = invertedMatrix(2, 3);
 }
 
+Vector2 View::calculateScreenPosition(Vector3 worldPosition) {
+	Vector3 viewPosition = _frameViewMatrix * worldPosition;
+	return Vector2(
+		this->_viewportHalfWidth - viewPosition.x / viewPosition.z * _viewportDistance,
+		this->_viewportHalfHeight - viewPosition.y / viewPosition.z * _viewportDistance
+	);
+}
 
 } // End of namespace BladeRunner
-- 
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