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en:guides:beginners:shooting_and_spawners [2018/02/13 20:47 (6 years ago)] – ↷ Links adapted because of a move operation iarwain | en:guides:beginners:shooting_and_spawners [2021/07/15 15:10 (3 years ago)] (current) – minor grammar and spelling corrections creampuff | ||
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Time for our hero to defend himself in the quest to reach the prize. He needs to shoot his gun. | Time for our hero to defend himself in the quest to reach the prize. He needs to shoot his gun. | ||
- | What will we use for a bullet? There a few choices, but we'll go for particle.png in the data/object folder: | + | What will we use for a bullet? There a few choices, but we'll go for '' |
{{ : | {{ : | ||
- | Define | + | Once copied, define |
< | < | ||
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</ | </ | ||
- | Any BulletObject that is created will be scaled down a little, sent flying off to to the right, and can only exist for 1 second before auto-destroying. | + | Any BulletObject that is created will be scaled down a little, sent flying off to to the right, and can only exist for 1 second before |
- | What is the best way to get our hero to shoot lots of these [BulletObject]s? A spawner is the thing to use. | + | What is the best way to get our hero to shoot lots of these '' |
- | A spawner can be attached to an object (like our hero) and it can be told to spawn a specific type of object (like a bullet). Let's take this approach to start with. It won't be perfect, but we can always improve it later. | + | A spawner can be attached to an object (like our hero). And it can be told to spawn a specific type of object (like a bullet). Let's take this approach to start with. It won't be perfect, but we can always improve it later. |
Create a spawner for the hero: | Create a spawner for the hero: | ||
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</ | </ | ||
- | Some words on the above. This spawner can shoot BulletObjects. It can shoot one at a time with 0.1 seconds between shots. | + | Some words on the above. This spawner can shoot '' |
- | Time to attach it to the HeroObject: | + | Time to attach it to the '' |
< | < | ||
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{{: | {{: | ||
- | Great so that's working for us. Now how to stop it from shooting. The only command | + | Great, so that's working for us. Now, how to stop it from shooting. The function |
- | If we disabled our hero object, yes it would shop him from shooting, but it would also make him dissapear. Not quite what is expected. | + | If we disabled our hero object, yes it would stop him from shooting, but it would also make him disappear. Not quite what is expected. |
There are a number of ways to solve this situation. Let's go with a simple one. | There are a number of ways to solve this situation. Let's go with a simple one. | ||
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What if the HeroObject had a single empty child object? And what if that child object had the spawner? Because it would be invisible, it wouldn' | What if the HeroObject had a single empty child object? And what if that child object had the spawner? Because it would be invisible, it wouldn' | ||
- | Define | + | Define |
< | < | ||
[HerosGun] | [HerosGun] | ||
Spawner | Spawner | ||
- | Position | + | Position |
</ | </ | ||
- | Remove the spawner from the hero object. Make HerosGun a child of HeroObject: | + | Remove the spawner from the hero object, and make '' |
< | < | ||
[HeroObject] | [HeroObject] | ||
Graphic | Graphic | ||
- | Position | + | Position |
Scale = 2 | Scale = 2 | ||
AnimationSet = HeroAnimationSet | AnimationSet = HeroAnimationSet | ||
Line 99: | Line 99: | ||
</ | </ | ||
- | Now that you have the reference, turn off the object at the bottom of the Init() function: | + | Now that you have the reference, turn off the '' |
< | < | ||
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Compile and run. | Compile and run. | ||
- | Hmmm... | + | Hmmm... |
< | < | ||
Line 132: | Line 132: | ||
</ | </ | ||
- | The ObjectSpeed property overrides the Speed property in the BulletObject (no it's not really needed anymore) and the UseRelativeSpeed means the ObjectSpeed with be applied relative to the direction of the spawner. | + | The '' |
Compile and Run. | Compile and Run. | ||
- | Fantastic! Our hero can now run, jump and shoot. | + | Fantastic! Our hero can now run, jump, and shoot. |
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