The Final Drone Grid Game - Beginning Android 3D Game Development - page 358

If there is a collision, processing the collision by calling ApplyLinearImpulse() to
apply action reaction forces to the arena object and the weapon's ammunition

3.

4. Starting the explosion graphic and sound associated with the arena object

involved in the collision

Processing the damage to the arena object by calling the TakeDamage()
function

5.

6. Checking the health of the arena object and, if it is 0 or less, updating the

total kill value, which is the total value of all the objects destroyed by the
weapon's ammunition, and destroying the arena object by setting its active
status to false and its visibility to false

7. Returning the total kill value

Listing 10-11. Collision Detection Between a Weapon's Ammunition and the ArenaObject Set

int ProcessCollisionsWeapon(Weapon iWeapon)
{
int TotalKillValue = 0;

for (int i = 0; i < MAX_ARENA_OBJECTS; i++)
{
if ((m_ArenaObjectSet[i] != null) && (m_Active[i] == true))
{
Object3d CollisionObj = iWeapon.CheckAmmoCollision(m_ArenaObjectSet[i]);
if (CollisionObj != null)
{
CollisionObj.ApplyLinearImpulse(m_ArenaObjectSet[i]);
SphericalPolygonExplosion Exp = m_ArenaObjectSet[i].GetExplosion(0);
Exp.StartExplosion(m_ArenaObjectSet[i].m_Orientation.GetPosition(),
m_ExplosionMaxVelocity, m_ExplosionMinVelocity);
m_ArenaObjectSet[i].PlayExplosionSFX();
// Process Damage
m_ArenaObjectSet[i].TakeDamage(CollisionObj);
int Health = m_ArenaObjectSet[i].GetObjectStats().GetHealth();
if (Health <= 0)
{
int KillValue =
m_ArenaObjectSet[i].GetObjectStats().GetKillValue();
TotalKillValue = TotalKillValue + KillValue;
m_Active[i] = false;
m_ArenaObjectSet[i].SetVisibility(false);
}
}
}
}
return TotalKillValue;
}