Invaders example, different weapons for player issue

[Heru]

Hi all,

 

so, I wanted to learn Phaser for quite some time, now I finally gotten to it.

A while ago, I created a Space Invaders type of game in regular javascript without a framework.

For my first steps in Phaser, I thought it would be a good idea to try to recreate it.

 

I have a scrolling background, a player ship, some enemies, and different weapons for the player.

That's where my problem is: In the "Invaders" example, the player always fires just one bullet,

I want him to fire more bullets at the same time, that come out of different cannons on the ship.

The bullets and enemies are defined like this:

var player_bullet = ['group', 'standard', 'double', 'trident', 'quad'];player_bullet['standard'] = new Object();player_bullet['standard']['group'];player_bullet['standard']['time'] = 200;player_bullet['standard']['speed'] = -100;player_bullet['standard']['name'] = 'Normal Fire';player_bullet['double'] = new Object();player_bullet['double']['group'];player_bullet['double']['time'] = 250;player_bullet['double']['speed'] = -95;player_bullet['double']['name'] = 'Double Fire';player_bullet['trident'] = new Object();player_bullet['trident']['group'];player_bullet['trident']['time'] = 350;player_bullet['trident']['speed'] = -90;player_bullet['trident']['name'] = 'Trident Fire';player_bullet['quad'] = new Object();player_bullet['quad']['group'];player_bullet['quad']['time'] = 400;player_bullet['quad']['speed'] = -90;player_bullet['quad']['name'] = 'Quad Fire';var player_bullet_time = 0;

Going from the "Invaders" example, my create-phase includes this:

/*the different weapons the player can shoot.*/player_bullet['standard']['group'] = this.game.add.group();player_bullet['standard']['group'].enableBody = true;player_bullet['standard']['group'].physicsBodyType = Phaser.Physics.ARCADE;player_bullet['standard']['group'].createMultiple(30, 'player_bullet_standard');player_bullet['standard']['group'].setAll('anchor.x', '0.5');player_bullet['standard']['group'].setAll('anchor.y', '1');player_bullet['standard']['group'].setAll('outOfBoundsKill', true);player_bullet['standard']['group'].setAll('checkWorldBounds', true);    	player_bullet['double']['group'] = this.game.add.group();player_bullet['double']['group'].enableBody = true;player_bullet['double']['group'].physicsBodyType = Phaser.Physics.ARCADE;player_bullet['double']['group'].createMultiple(30, 'player_bullet_standard');player_bullet['double']['group'].setAll('anchor.x', '0.5');player_bullet['double']['group'].setAll('anchor.y', '1');player_bullet['double']['group'].setAll('outOfBoundsKill', true);player_bullet['double']['group'].setAll('checkWorldBounds', true);    	player_bullet['trident']['group'] = this.game.add.group();player_bullet['trident']['group'].enableBody = true;player_bullet['trident']['group'].physicsBodyType = Phaser.Physics.ARCADE;player_bullet['trident']['group'].createMultiple(30, 'player_bullet_standard');player_bullet['trident']['group'].setAll('anchor.x', '0.5');player_bullet['trident']['group'].setAll('anchor.y', '1');player_bullet['trident']['group'].setAll('outOfBoundsKill', true);player_bullet['trident']['group'].setAll('checkWorldBounds', true);    	player_bullet['quad']['group'] = this.game.add.group();player_bullet['quad']['group'].enableBody = true;player_bullet['quad']['group'].physicsBodyType = Phaser.Physics.ARCADE;player_bullet['quad']['group'].createMultiple(30, 'player_bullet_standard');player_bullet['quad']['group'].setAll('anchor.x', '0.5');player_bullet['quad']['group'].setAll('anchor.y', '1');player_bullet['quad']['group'].setAll('outOfBoundsKill', true);player_bullet['quad']['group'].setAll('checkWorldBounds', true);    	player_bullet['group'] = this.game.add.group();player_bullet['group'].add(player_bullet['standard']['group']);player_bullet['group'].add(player_bullet['double']['group']);player_bullet['group'].add(player_bullet['trident']['group']);player_bullet['group'].add(player_bullet['quad']['group']);player_current_bullet = player_bullet['standard'];

When a bullet is fired, it calls the firePlayerBullet() function:

firePlayerBullet: function() {	//  To avoid them being allowed to fire too fast we set a time limit	if (this.game.time.now > player_bullet_time)	{		var bullet = ['1', '2', '3', '4'];		bullet['1'] = 0;		bullet['2'] = 0;		bullet['3'] = 0;		bullet['4'] = 0;		switch (player_current_bullet['name']) {			case player_bullet['quad']['name']: 	bullet['4'] = player_bullet['quad']['group'].getFirstExists(false);														//no break			case player_bullet['trident']['name']: 	bullet['3'] = player_bullet['trident']['group'].getFirstExists(false);														//no break			case player_bullet['double']['name']: 	bullet['2'] = player_bullet['double']['group'].getFirstExists(false);														//no break			case player_bullet['standard']['name']: bullet['1'] = player_bullet['standard']['group'].getFirstExists(false);			break;		}		if (bullet['1']) {			switch(player_current_bullet['name']) {				case player_bullet['quad']['name']: 	bullet['1'].reset(player_ship.x + 10, player_ship.y - 20);break;				case player_bullet['trident']['name']: 	bullet['1'].reset(player_ship.x + 20, player_ship.y - 15);break;				case player_bullet['double']['name']: 	bullet['1'].reset(player_ship.x + 10, player_ship.y - 20);break;				case player_bullet['standard']['name']: bullet['1'].reset(player_ship.x, player_ship.y - 20);break;			}			bullet['1'].body.velocity.y = player_current_bullet['speed'];		} 		if (bullet['2']) {			switch(player_current_bullet['name']) {				case player_bullet['quad']['name']: 	bullet['2'].reset(player_ship.x - 10, player_ship.y - 20);break;				case player_bullet['trident']['name']: 	bullet['2'].reset(player_ship.x - 20, player_ship.y - 15);break;				case player_bullet['double']['name']: 	bullet['2'].reset(player_ship.x - 10, player_ship.y - 20);break;			}			bullet['2'].body.velocity.y = player_current_bullet['speed'];		} 		if (bullet['3']) {			switch(player_current_bullet['name']) {				case player_bullet['quad']['name']: 	bullet['3'].reset(player_ship.x + 20, player_ship.y - 15);										bullet['3'].body.velocity.y = player_current_bullet['speed'];									bullet['3'].body.velocity.x = -player_current_bullet['speed']/4;									bullet['3'].angle = 15;									break;				case player_bullet['trident']['name']: 	bullet['3'].reset(player_ship.x, player_ship.y - 20);									bullet['3'].body.velocity.y = player_current_bullet['speed'];									bullet['3'].angle = 0;									break;			}						} 		if (bullet['4']) {			bullet['4'].reset(player_ship.x - 20, player_ship.y - 15);			bullet['4'].body.velocity.y = player_current_bullet['speed'];			bullet['4'].body.velocity.x = player_current_bullet['speed']/4;			bullet['4'].angle = -15;		} 		if (bullet['1'] || bullet['2'] || bullet['3'] || bullet['4']) {			player_bullet_time = this.game.time.now + player_current_bullet['time'];		}	}    }

the collision looks like this:

this.game.physics.arcade.overlap(player_bullet['group'], enemy_current['group'], this.collisionHandler, null, this);

So, if anyone could tell me, how I can handle it, that the player can shoot 2 or 3 or 4 bullets at a time from different locations, I would be more than happy! I know, my code isn't the best one, and while coding it I thought "that can't be right" and "there's got to be a better way to do it" ... I hope you guys can help me out

 

best regards

 

Edit: formating

[Heru]

>130 views and no one could help?

 

But, in the meantime, I figured it out myself. I can't fire four different bullets, I have to fire one bullet four times (at nearly the same time).

 

the function for the bullets now looks like this:

firePlayerBullet: function() {		if (this.game.time.now > player_bullet_time)		{			var bullet;			if (player_current_bullet['name'] == player_bullet['standard']['name']) {				bullet = player_bullet['group'].getFirstExists(false);				bullet.reset(player_ship.x, player_ship.y - 20);				bullet.angle = 0;				bullet.body.velocity.y = player_bullet['standard']['speed'];				player_bullet_time = this.game.time.now + player_current_bullet['time'];			} else if (player_current_bullet['name'] == player_bullet['double']['name']) {				bullet = player_bullet['group'].getFirstExists(false);				bullet.reset(player_ship.x + 10, player_ship.y - 20);				bullet.angle = 0;				bullet.body.velocity.y = player_bullet['double']['speed'];				bullet = player_bullet['group'].getFirstExists(false);				bullet.reset(player_ship.x - 10, player_ship.y - 20);				bullet.angle = 0;				bullet.body.velocity.y = player_bullet['double']['speed'];				player_bullet_time = this.game.time.now + player_current_bullet['time'];			} else if (player_current_bullet['name'] == player_bullet['trident']['name']) {				bullet = player_bullet['group'].getFirstExists(false);				bullet.reset(player_ship.x + 20, player_ship.y - 15);				bullet.angle = 0;					bullet.body.velocity.y = player_bullet['trident']['speed'];				bullet = player_bullet['group'].getFirstExists(false);				bullet.reset(player_ship.x - 20, player_ship.y - 15);				bullet.angle = 0;				bullet.body.velocity.y = player_bullet['trident']['speed'];				bullet = player_bullet['group'].getFirstExists(false);				bullet.reset(player_ship.x, player_ship.y - 20);				bullet.angle = 0;				bullet.body.velocity.y = player_bullet['trident']['speed'];				player_bullet_time = this.game.time.now + player_current_bullet['time'];			} else if (player_current_bullet['name'] == player_bullet['quad']['name']) {				bullet = player_bullet['group'].getFirstExists(false);				bullet.reset(player_ship.x + 10, player_ship.y - 20);				bullet.angle = 0;				bullet.body.velocity.y = player_bullet['quad']['speed'];				bullet = player_bullet['group'].getFirstExists(false);				bullet.reset(player_ship.x - 10, player_ship.y - 20);				bullet.angle = 0;				bullet.body.velocity.y = player_bullet['quad']['speed'];				bullet = player_bullet['group'].getFirstExists(false);				bullet.reset(player_ship.x + 20, player_ship.y - 15);				bullet.angle = 15;				bullet.body.velocity.y = player_bullet['quad']['speed'];				bullet.body.velocity.x = -player_bullet['quad']['speed']/4;				bullet = player_bullet['group'].getFirstExists(false);				bullet.reset(player_ship.x - 20, player_ship.y - 15);				bullet.angle = -15;				bullet.body.velocity.y = player_bullet['quad']['speed'];				bullet.body.velocity.x = player_bullet['quad']['speed']/4;				player_bullet_time = this.game.time.now + player_current_bullet['time'];			}		}    }

Maybe that'll help someone in the future...