diff options
Diffstat (limited to 'samples/05_mouse/02_mouse_move/app')
| -rw-r--r-- | samples/05_mouse/02_mouse_move/app/main.rb | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/samples/05_mouse/02_mouse_move/app/main.rb b/samples/05_mouse/02_mouse_move/app/main.rb index b015277..d9387dc 100644 --- a/samples/05_mouse/02_mouse_move/app/main.rb +++ b/samples/05_mouse/02_mouse_move/app/main.rb @@ -14,9 +14,11 @@ - args.inputs.keyboard.key_down.KEY: Determines if a key is being held or pressed. Stores the frame the "down" event occurred. + For more information about the keyboard, go to mygame/documentation/06-keyboard.md. - args.outputs.sprites: An array. The values generate a sprite. The parameters are [X, Y, WIDTH, HEIGHT, PATH, ANGLE, ALPHA, RED, GREEN, BLUE] + For more information about sprites, go to mygame/documentation/05-sprites.md. - args.state.new_entity: Used when we want to create a new object, like a sprite or button. When we want to create a new object, we can declare it as a new entity and then define @@ -194,7 +196,7 @@ class ProtectThePuppiesFromTheZombies def calc_kill_zombie # Find all zombies that intersect with the player. They are considered killed. - killed_this_frame = state.zombies.find_all { |z| z.sprite.intersect_rect? state.player_sprite } + killed_this_frame = state.zombies.find_all { |z| z.sprite && (z.sprite.intersect_rect? state.player_sprite) } state.zombies = state.zombies - killed_this_frame # remove newly killed zombies from zombies collection state.killed_zombies += killed_this_frame # add newly killed zombies to killed zombies |