How to spawn markers on android map in a range
4
I'm trying to make a pokemonGo style application.
I have tried using latitude and longitude formulas to calculate the range of coordinates where markers (pokemon) should spawn but I only managed to get a rectangular area. I would like to spawn them on a circular area around the player, how can I do that?
Here is the code where I calculated the rectangular area.
Random r = new Random();
int randomDistanceLatitude = r.nextInt(range*2) - range;
r = new Random();
int randomDistanceLongitude = r.nextInt(range*2) - range;
double latitudeDegreeToAdd = 1.7 * randomDistanceLatitude * 0.000009043717329571146924;
double longitudeDegreeToAdd = randomDistanceLongitude * (1 / (111320 * Math.cos(infoLocal.getLastKnownLocation().getLatitude())));
LatLng enemy1Location = new LatLng(infoLocal.getLastKnownLocation().getLatitude() + latitudeDegreeToAdd, infoLocal.getLastKnownLocation().getLongitude() + longitudeDegreeToAdd);
enemies[i] = mMap.addMarker(new MarkerOptions().position(enemy1Location).title("Monster").snippet("Click to Attack!").icon(BitmapDescriptorFactory.fromResource(R.drawable.enemy3)).anchor(0.5f, 0.5f));
java
android dictionary area asked Nov 23 '18 at 9:35
Sad Hyena
586
add a comment |
4
I'm trying to make a pokemonGo style application.
I have tried using latitude and longitude formulas to calculate the range of coordinates where markers (pokemon) should spawn but I only managed to get a rectangular area. I would like to spawn them on a circular area around the player, how can I do that?
Here is the code where I calculated the rectangular area.
Random r = new Random();
int randomDistanceLatitude = r.nextInt(range*2) - range;
r = new Random();
int randomDistanceLongitude = r.nextInt(range*2) - range;
double latitudeDegreeToAdd = 1.7 * randomDistanceLatitude * 0.000009043717329571146924;
double longitudeDegreeToAdd = randomDistanceLongitude * (1 / (111320 * Math.cos(infoLocal.getLastKnownLocation().getLatitude())));
LatLng enemy1Location = new LatLng(infoLocal.getLastKnownLocation().getLatitude() + latitudeDegreeToAdd, infoLocal.getLastKnownLocation().getLongitude() + longitudeDegreeToAdd);
enemies[i] = mMap.addMarker(new MarkerOptions().position(enemy1Location).title("Monster").snippet("Click to Attack!").icon(BitmapDescriptorFactory.fromResource(R.drawable.enemy3)).anchor(0.5f, 0.5f));
java
android dictionary area asked Nov 23 '18 at 9:35
Sad Hyena
586
1
do you have an actual question?
– Stultuske
Nov 23 '18 at 9:36
@Stultuske as I said, I want them to spawn in a circular area not in a rectangular area around the player
– Sad Hyena
Nov 23 '18 at 9:38
... still not a question. what exactly are you having problems with?
– Stultuske
Nov 23 '18 at 9:39
@Stultuske sorry, should have written this, I don't know how to spawn them in a circular area, the formulas that i posted may be useless for this purpose
– Sad Hyena
Nov 23 '18 at 9:43
can someone help me?
– Sad Hyena
Nov 30 '18 at 9:31
add a comment |
4
4
4
I'm trying to make a pokemonGo style application.
I have tried using latitude and longitude formulas to calculate the range of coordinates where markers (pokemon) should spawn but I only managed to get a rectangular area. I would like to spawn them on a circular area around the player, how can I do that?
Here is the code where I calculated the rectangular area.
Random r = new Random();
int randomDistanceLatitude = r.nextInt(range*2) - range;
r = new Random();
int randomDistanceLongitude = r.nextInt(range*2) - range;
double latitudeDegreeToAdd = 1.7 * randomDistanceLatitude * 0.000009043717329571146924;
double longitudeDegreeToAdd = randomDistanceLongitude * (1 / (111320 * Math.cos(infoLocal.getLastKnownLocation().getLatitude())));
LatLng enemy1Location = new LatLng(infoLocal.getLastKnownLocation().getLatitude() + latitudeDegreeToAdd, infoLocal.getLastKnownLocation().getLongitude() + longitudeDegreeToAdd);
enemies[i] = mMap.addMarker(new MarkerOptions().position(enemy1Location).title("Monster").snippet("Click to Attack!").icon(BitmapDescriptorFactory.fromResource(R.drawable.enemy3)).anchor(0.5f, 0.5f));
java
android dictionary area asked Nov 23 '18 at 9:35
Sad Hyena
586
I'm trying to make a pokemonGo style application.
I have tried using latitude and longitude formulas to calculate the range of coordinates where markers (pokemon) should spawn but I only managed to get a rectangular area. I would like to spawn them on a circular area around the player, how can I do that?
Here is the code where I calculated the rectangular area.
Random r = new Random();
int randomDistanceLatitude = r.nextInt(range*2) - range;
r = new Random();
int randomDistanceLongitude = r.nextInt(range*2) - range;
double latitudeDegreeToAdd = 1.7 * randomDistanceLatitude * 0.000009043717329571146924;
double longitudeDegreeToAdd = randomDistanceLongitude * (1 / (111320 * Math.cos(infoLocal.getLastKnownLocation().getLatitude())));
LatLng enemy1Location = new LatLng(infoLocal.getLastKnownLocation().getLatitude() + latitudeDegreeToAdd, infoLocal.getLastKnownLocation().getLongitude() + longitudeDegreeToAdd);
enemies[i] = mMap.addMarker(new MarkerOptions().position(enemy1Location).title("Monster").snippet("Click to Attack!").icon(BitmapDescriptorFactory.fromResource(R.drawable.enemy3)).anchor(0.5f, 0.5f));
java
android dictionary area java
android dictionary area asked Nov 23 '18 at 9:35
Sad Hyena
586
asked Nov 23 '18 at 9:35
Sad Hyena
586
edited Nov 23 '18 at 9:45
asked Nov 23 '18 at 9:35
Sad Hyena
586
asked Nov 23 '18 at 9:35
Sad Hyena
586
asked Nov 23 '18 at 9:35
Sad Hyena
586
586
1
do you have an actual question?
– Stultuske
Nov 23 '18 at 9:36
@Stultuske as I said, I want them to spawn in a circular area not in a rectangular area around the player
– Sad Hyena
Nov 23 '18 at 9:38
... still not a question. what exactly are you having problems with?
– Stultuske
Nov 23 '18 at 9:39
@Stultuske sorry, should have written this, I don't know how to spawn them in a circular area, the formulas that i posted may be useless for this purpose
– Sad Hyena
Nov 23 '18 at 9:43
can someone help me?
– Sad Hyena
Nov 30 '18 at 9:31
add a comment |
1
do you have an actual question?
– Stultuske
Nov 23 '18 at 9:36
@Stultuske as I said, I want them to spawn in a circular area not in a rectangular area around the player
– Sad Hyena
Nov 23 '18 at 9:38
... still not a question. what exactly are you having problems with?
– Stultuske
Nov 23 '18 at 9:39
@Stultuske sorry, should have written this, I don't know how to spawn them in a circular area, the formulas that i posted may be useless for this purpose
– Sad Hyena
Nov 23 '18 at 9:43
can someone help me?
– Sad Hyena
Nov 30 '18 at 9:31
1
1
do you have an actual question?
– Stultuske
Nov 23 '18 at 9:36
do you have an actual question?
– Stultuske
Nov 23 '18 at 9:36
@Stultuske as I said, I want them to spawn in a circular area not in a rectangular area around the player
– Sad Hyena
Nov 23 '18 at 9:38
@Stultuske as I said, I want them to spawn in a circular area not in a rectangular area around the player
– Sad Hyena
Nov 23 '18 at 9:38
... still not a question. what exactly are you having problems with?
– Stultuske
Nov 23 '18 at 9:39
... still not a question. what exactly are you having problems with?
– Stultuske
Nov 23 '18 at 9:39
@Stultuske sorry, should have written this, I don't know how to spawn them in a circular area, the formulas that i posted may be useless for this purpose
– Sad Hyena
Nov 23 '18 at 9:43
@Stultuske sorry, should have written this, I don't know how to spawn them in a circular area, the formulas that i posted may be useless for this purpose
– Sad Hyena
Nov 23 '18 at 9:43
can someone help me?
– Sad Hyena
Nov 30 '18 at 9:31
can someone help me?
– Sad Hyena
Nov 30 '18 at 9:31
add a comment |
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1
do you have an actual question?
– Stultuske
Nov 23 '18 at 9:36
@Stultuske as I said, I want them to spawn in a circular area not in a rectangular area around the player
– Sad Hyena
Nov 23 '18 at 9:38
... still not a question. what exactly are you having problems with?
– Stultuske
Nov 23 '18 at 9:39
@Stultuske sorry, should have written this, I don't know how to spawn them in a circular area, the formulas that i posted may be useless for this purpose
– Sad Hyena
Nov 23 '18 at 9:43
can someone help me?
– Sad Hyena
Nov 30 '18 at 9:31