Projectile Effects

Introduction

Now that you have enemies and projectiles, let’s give your projectiles some power!

Detect sprite overlaps

From ||sprites:Sprites||, drag the ||sprites:on|| ||variables:sprite|| ||sprites:overlaps|| ||variables:otherSprite|| block into your workspace. Click the first dropdown and select ||sprites:Projectile||, then click the second dropdown and select ||sprites:Enemy||.

sprites.onOverlap(SpriteKind.Projectile, SpriteKind.Enemy, function (sprite, otherSprite) {
})

Destroy the enemy

From ||sprites:Sprites||, drag the ||sprites:destroy|| block into your ||sprites:on sprite overlaps|| blocks. Drag the ||variables:otherSprite|| variable into the ||sprites:destroy sprite||.

sprites.onOverlap(SpriteKind.Projectile, SpriteKind.Enemy, function (sprite, otherSprite) {
    // @highlight
    otherSprite.destroy()
})

Add score

From ||info:Info||, drag the ||info:change score|| block into ||sprites:on sprite overlaps|| to give yourself a point each time you hit an enemy.

sprites.onOverlap(SpriteKind.Projectile, SpriteKind.Enemy, function (sprite, otherSprite) {
    otherSprite.destroy()
    // @highlight
    info.changeScoreBy(1)
})

Spawn projectiles

From ||sprites:Sprites||, drag the ||sprites:mySprite start effect|| block into ||sprites:on sprite overlaps||. Then drag the ||variables:sprite|| variable into the ||sprites:start effect|| block. Click the dropdown to select your favorite effect!

sprites.onOverlap(SpriteKind.Projectile, SpriteKind.Enemy, function (sprite, otherSprite) {
    otherSprite.destroy()
    info.changeScoreBy(1)
    // @highlight
    sprite.startEffect(effects.bubbles)
})

Conclusion

Now try making your enemies move or spawn multiple kinds of enemies!

Moving enemies	Multiple enemies	Design a background