Diff: ExplosionManager.cpp

Revision:

8:82d88f9381f3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ExplosionManager.cpp	Sat Jun 08 17:51:33 2013 +0000
@@ -0,0 +1,62 @@
+/*
+ * SOURCE FILE : ExplosionManager.cpp
+ *
+ * Responsible for managing a collection of explosions.
+ *
+ */
+
+#include "ExplosionManager.h"
+#include "SpriteNumber.h"
+
+// An instance of this class.
+ExplosionManager ExplosionManager::Instance( FirstExplosionSprite );
+
+/***************/
+/* CONSTRUCTOR */
+/***************/
+// Pass index of first sprite used for explosions in fsn.
+ExplosionManager::ExplosionManager( UInt8 fsn ) :
+    firstSpriteNumber( fsn )
+{
+  KillAllExplosions();
+}
+    
+/**************/
+/* DESTRUCTOR */
+/**************/
+ExplosionManager::~ExplosionManager() {
+}
+
+/**************************/
+/* START AN EXPLOSION OFF */
+/**************************/
+// Pass start coordinates in x and y (NOT pixel coordinates).
+// Returns pointer to an ExplosionObject if it was started successfully or NULL if
+// no more explosions are available at the moment.
+ExplosionObject *ExplosionManager::StartExplosion( Int16 x, Int16 y ) {
+  // Find a free explosion slot.
+  UInt8 i = 0;
+  ExplosionObject *explosion = (ExplosionObject*)NULL;
+  while( ( i < MaxExplosions ) && ( explosion == (ExplosionObject*)NULL ) ) {
+    if( explosionPointers[ i ] == (GameObject*)NULL ) {
+      explosion = explosions + i;
+      explosionPointers[ i ] = explosion;
+      explosion->SpriteNumber = firstSpriteNumber + i;
+      explosion->Xco = x;
+      explosion->Yco = y;
+      explosion->Restart();
+    }
+    i++;
+  }
+  return explosion;
+}
+
+/***********************/
+/* KILL ALL EXPLOSIONS */
+/***********************/
+void ExplosionManager::KillAllExplosions( void ) {
+  for( UInt8 i = 0; i < MaxExplosions; ++i ) {
+    explosionPointers[ i ] = (GameObject*)NULL;
+  }
+}
+