CGE: Add some doxygen comments

3 files changed, 38 insertions, 4 deletions

diff --git a/engines/cge/cge_main.cpp b/engines/cge/cge_main.cpp
index 51cf3bb621..1c2759bd97 100644
--- a/engines/cge/cge_main.cpp
+++ b/engines/cge/cge_main.cpp
@@ -847,6 +847,9 @@ void System::tick() {
 	_time = kSystemRate;
 }
 
+/**
+ * Switch greyscale mode on/off
+ */
 void CGEEngine::switchColorMode() {
 	debugC(1, kCGEDebugEngine, "CGEEngine::switchColorMode()");
 
@@ -855,6 +858,9 @@ void CGEEngine::switchColorMode() {
 	_vga->setColors(_vga->_sysPal, 64);
 }
 
+/**
+ * Switch music on/off
+ */
 void CGEEngine::switchMusic() {
 	debugC(1, kCGEDebugEngine, "CGEEngine::switchMusic()");
 
@@ -867,6 +873,9 @@ void CGEEngine::switchMusic() {
 		_midiPlayer->killMidi();
 }
 
+/**
+ * Shutdown game
+ */
 void CGEEngine::startCountDown() {
 	debugC(1, kCGEDebugEngine, "CGEEngine::startCountDown()");
 
diff --git a/engines/cge/snail.cpp b/engines/cge/snail.cpp
index 966a372be4..cbc463ced2 100644
--- a/engines/cge/snail.cpp
+++ b/engines/cge/snail.cpp
@@ -1002,7 +1002,6 @@ void CGEEngine::snSetZ(Sprite *spr, int z) {
 
 	if (spr) {
 		spr->_z = z;
-		//SNPOST_(SNZTRIM, -1, 0, spr);
 		snZTrim(spr);
 	}
 }
@@ -1098,6 +1097,11 @@ void CGEEngine::snKeep(Sprite *spr, int stp) {
 	selectPocket(-1);
 }
 
+/**
+ * Remove an object from the inventory and (if specified) trigger an animation
+ * @param spr			Inventory item
+ * @param stp			Animation
+ */
 void CGEEngine::snGive(Sprite *spr, int stp) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::snGive(spr, %d)", stp);
 
@@ -1149,8 +1153,13 @@ void CGEEngine::snLevel(Sprite *spr, int lev) {
 	_maxScene = _maxSceneArr[_lev];
 }
 
-void CGEEngine::snFlag(int indx, bool v) {
-	_flag[indx] = v;
+/**
+ * Set a flag to a value
+ * @param indx			Flag index
+ * @param val			Flag value
+ */
+void CGEEngine::snFlag(int indx, bool val) {
+	_flag[indx] = val;
 }
 
 void CGEEngine::snSetRef(Sprite *spr, int nr) {
@@ -1193,12 +1202,22 @@ void CGEEngine::snLight(bool in) {
 	_dark = !in;
 }
 
+/**
+ * Set an horizontal boundary
+ * @param scene			Scene number
+ * @param barX			Horizontal boundary value
+ */
 void CGEEngine::snHBarrier(const int scene, const int barX) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::snHBarrier(%d, %d)", scene, barX);
 
 	_barriers[(scene > 0) ? scene : _now]._horz = barX;
 }
 
+/**
+ * Set a vertical boundary
+ * @param scene			Scene number
+ * @param barY			Vertical boundary value
+ */
 void CGEEngine::snVBarrier(const int scene, const int barY) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::snVBarrier(%d, %d)", scene, barY);
 
diff --git a/engines/cge/walk.cpp b/engines/cge/walk.cpp
index 31ea1909d8..22c06a17c1 100644
--- a/engines/cge/walk.cpp
+++ b/engines/cge/walk.cpp
@@ -126,7 +126,10 @@ int Walk::distance(Sprite *spr) {
 
 	return dz - 1;
 }
-
+/**
+ * Turn the character to a given direction
+ * @param d			  Direction
+ */
 void Walk::turn(Dir d) {
 	Dir dir = (_dir == kDirNone) ? kDirSouth : _dir;
 	if (d != _dir) {
@@ -135,6 +138,9 @@ void Walk::turn(Dir d) {
 	}
 }
 
+/**
+ * Stop the character and reset his direction
+ */
 void Walk::park() {
 	if (_time == 0)
 		_time++;