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Helicopter.cpp
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Helicopter.cpp
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/*
* Helicopter.cpp
*/
//Dragonfly Headers
#include "EventStep.h"
#include "EventView.h"
#include "GraphicsManager.h"
#include "LogManager.h"
#include "ResourceManager.h"
#include "WorldManager.h"
//Game Headers
#include "EnemyGunShot.h"
#include "Helicopter.h"
#include "Score.h"
#include "SmallExplosion.h"
Helicopter::Helicopter(df::Position p) {
df::ResourceManager &resource_manager = df::ResourceManager::getInstance();
df::LogManager &log_manager = df::LogManager::getInstance();
// Link to "player" sprite
df::Sprite *p_temp_sprite;
p_temp_sprite = resource_manager.getSprite("helicopter");
if (!p_temp_sprite) {
log_manager.writeLog("Helicopter::Helicopter(): Warning! Sprite '%s' not found", "helicopter");
}
else {
setSprite(p_temp_sprite);
setSpriteSlowdown(0);
}
setType("Helicopter");
setSolidness(df::Solidness::SOFT);
//Set starting position
setPosition(p);
setXVelocity(1);
fire_slowdown = 10;
fire_countdown = fire_slowdown;
anim_slowdown = 5;
anim_countdown = anim_slowdown;
health = 10;
flying_right = true;
first_frame = true;
//Start helicopter sound
p_sound = df::ResourceManager::getInstance().getSound("chopper-props");
p_sound->play(true);
}
// Handle event.
// Return 0 if ignored, else 1.
int Helicopter::eventHandler(const df::Event *p_e) {
if (p_e->getType() == df::STEP_EVENT) {
step();
fire();
return 1;
}
if (p_e->getType() == df::COLLISION_EVENT) {
const df::EventCollision *p_collision_event = dynamic_cast <df::EventCollision const *> (p_e);
hit(p_collision_event);
return 1;
}
return 0;
}
void Helicopter::step() {
df::WorldManager &world_manager = df::WorldManager::getInstance();
//Fire countdown.
fire_countdown--;
if (fire_countdown < 0)
fire_countdown = 0;
//Sprite countdown
anim_countdown--;
if (anim_countdown < 0)
anim_countdown = 0;
//Check if needs to turn
if (getPosition().getX() < world_manager.getView().getCorner().getX() + 5) {
flying_right = true;
setXVelocity(1);
}
if (getPosition().getX() > world_manager.getView().getCorner().getX() +
world_manager.getView().getHorizontal() - 5) {
flying_right = false;
setXVelocity(-1);
}
}
void Helicopter::fire() {
// See if time to fire.
if (fire_countdown > 0)
return;
//Reset countdown
fire_countdown = fire_slowdown;
// Fire Bullet downwards
EnemyGunShot *p = new EnemyGunShot(df::Position::Position(getPosition().getX(), getPosition().getY() + 2));
// Play "fire" sound.
}
void Helicopter::hit(const df::EventCollision *p_collision_event) {
// If Bullet, create explosion and make new Saucer.
if ((p_collision_event->getObject1()->getType() == "PlayerGunShot") ||
(p_collision_event->getObject2()->getType() == "PlayerGunShot")) {
health--;
}
if((p_collision_event->getObject1()->getType() == "PlayerCannonShot") ||
(p_collision_event->getObject2()->getType() == "PlayerCannonShot") ||
health <= 0) {
// Create an explosion.
SmallExplosion *p_explosion = new SmallExplosion(getPosition());
//stop sound
p_sound->stop();
// Play "explode" sound
//Send Points for deletion
df::EventView ev(SCORE_STRING, HELICOPTER_POINTS, true);
df::WorldManager::getInstance().onEvent(&ev);
//Delete this object
df::WorldManager::getInstance().markForDelete(this);
}
}
//draw frames to match where the player is
void Helicopter::draw(void) {
//See if change frame
if (anim_countdown <= 0) {
anim_countdown = anim_slowdown;
first_frame = !first_frame;
}
int dir_frame = 0;
if (flying_right) {
if (first_frame)
dir_frame = 0;
else
dir_frame = 1;
}
else {
if (first_frame)
dir_frame = 2;
else
dir_frame = 3;
}
df::GraphicsManager::getInstance().drawFrame(getPosition(), getSprite()->getFrame(dir_frame), true);
}