Diff: BulletManager.cpp

Revision:

4:673eb9735d44

Child:

5:0b0651ac7832

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/BulletManager.cpp	Sat Jun 08 11:24:05 2013 +0000
@@ -0,0 +1,81 @@
+/*
+ * SOURCE FILE : BulletManager.cpp
+ *
+ * Responsible for managing a collection of bullets.
+ *
+ */
+
+#include "BulletManager.h"
+// #include "BulletObject.h"
+// #include "ArenaConst.h"
+#include "GDExtra.h"
+
+/***************/
+/* CONSTRUCTOR */
+/***************/
+// Pass number of sprite to use for first bullet.
+// MaxBullets consequtive sprites will be used for bullets.
+BulletManager::BulletManager( UInt8 firstSpriteNumber ) {
+#if 0
+  // Initialise aspects of bullets that never change.
+  BulletObject *bullet;
+  for( UInt8 b = 0; b < MaxBullets; ++b ) {
+    bullet = bullets + b;
+    bullet->SpriteNumber = firstSpriteNumber + b;
+    bullet->PixelWidth = 6;
+    bullet->PixelHeight = 6;
+    bullet->Bounds = &ArenaRectangle;
+  }
+#endif
+}
+
+/**********************/
+/* START A BULLET OFF */
+/**********************/
+// Pass start coordinates in x and y (NOT pixel coordinates).
+// Pass bullet velocities in hv and vv (NOT pixel velocities).
+// Returns true if bullet was started successfully.
+bool BulletManager::StartBullet( Int16 x, Int16 y, Int16 hv, Int16 vv ) {
+#if 0
+  // Try and find an unused bullet slot.
+  UInt8 index;
+  if( GameObject::FindUnusedObject( bulletPointers, MaxBullets, &index ) ) {
+    // Found a free bullet slot. Point to entry in bullets array.
+    BulletObject *bullet = bullets + index;
+    bulletPointers[ index ] = bullet;
+    bullet->Start( x, y, hv, vv );
+    return true;
+  }
+  else {
+    // No free bullet slots.
+    return false;
+  }
+#else
+return false;
+#endif
+}
+
+/************************/
+/* KILL A SINGLE BULLET */
+/************************/
+// Pass index of bullet in b.
+void BulletManager::KillBullet( UInt8 b ) {
+#if 0
+    GameObject *bullet = bulletPointers[ b ];
+    if( bullet != (GameObject*)NULL ) {
+      bulletPointers[ b ] = (BulletObject*)NULL;
+      // Hide bullet sprite by setting y coordinate to 400.
+      GDExtra::HideSprite( bullet->SpriteNumber );
+    }
+#endif
+}
+
+/********************/
+/* KILL ALL BULLETS */
+/********************/
+void BulletManager::KillAllBullets( void ) {
+  for( UInt8 b = 0; b < MaxBullets; ++b ) {
+    KillBullet( b );
+  }
+}
+