This function checks the deploy area when you use it in a deployable item. It spawns a camera at your desired deployment height, then rotates 360 degrees and checks for objects in the way. If you have an object that decends, you can use the %vert to define how high you want to look striaght up above the deployment area.
| Code: |
| // Function to check deploy area/landing path // Spawn a camera, rotate all the way around and check for objects // -Noxwizard // %pos - deploy position // %height - height to deploy camera // %radius - how far to look around // %vert - how high to look up (dropships) function checkarea(%client,%pos,%height,%radius,%vert) { %camera = newObject("Camera","Turret",cameraturret,true); GameBase::setPosition(%camera,Vector::add(%pos,"0 0 " @ %height)); // Look up if(GameBase::getLOSInfo(%camera,%vert,"1.5708 0 0")) { %name = GameBase::getDataName($los::object); if(!%name) %name = getObjectType($los::object); if(%name == "SimTerrain") Client::sendMessage(%client,0,"You are underground."); //Not likely, but possible else Client::sendMessage(%client,0,%name@" in way, "@Vector::getDistance($los::position, GameBase::getPosition(%client))@" meters up."); DeleteObject(%camera); return false; } // Look around for(%i = 0; %i < 6.3; %i = %i + 0.1) { if(GameBase::getLOSInfo(%camera,%radius,"0 0 " @ %i)) { %name = GameBase::getDataName($los::object); if(!%name) %name = getObjectType($los::object); if(%name == "SimTerrain") Client::sendMessage(%client,0,"You are too close to hills."); else Client::sendMessage(%client,0,%name@" in way, "@Vector::getDistance($los::position, GameBase::getPosition(%client))@" meters up."); DeleteObject(%camera); return false; } } // Now that the circle has completed, deploy DeleteObject(%camera); return true; } |
Code Explaination:
This creates a camera at the player's position at the height defined:
| Code: |
| %camera = newObject("Camera","Turret",cameraturret,true); GameBase::setPosition(%camera,Vector::add(%pos,"0 0 " @ %height)); |
This has the camera look straight up for your defined height:
| Code: |
| GameBase::getLOSInfo(%camera,%vert,"1.5708 0 0") |
Put that into an if statement and we can check if there's an object in the camera's line-of-sight. If there's something in the way, we'll get it's name and tell the client that it's in the way, and how high up it is. Unless it's terrain.
| Code: |
| if(GameBase::getLOSInfo(%camera,%vert,"1.5708 0 0")) { %name = GameBase::getDataName($los::object); if(!%name) %name = getObjectType($los::object); if(%name == "SimTerrain") Client::sendMessage(%client,0,"You are underground."); //Not likely, but possible else Client::sendMessage(%client,0,%name@" in way, "@Vector::getDistance($los::position, GameBase::getPosition(%client))@" meters up."); DeleteObject(%camera); return false; } |
Now this part's a bit different. We want it to look all the way around, so we will have it look in a lot of directions, by adding 0.1, looking, adding another 0.1, looking, and so on. To do that we use a for loop. We went it to look all the way around, which will be from 0 to 6.28. It's 6.28, because that's just the way circles are handled, instead of degrees it's radians, 6.28 is the same as 360 degrees.
| Code: |
| // Look around for(%i = 0; %i < 6.3; %i = %i + 0.1) { if(GameBase::getLOSInfo(%camera,%radius,"0 0 " @ %i)) { %name = GameBase::getDataName($los::object); if(!%name) %name = getObjectType($los::object); if(%name == "SimTerrain") Client::sendMessage(%client,0,"You are too close to hills."); else Client::sendMessage(%client,0,%name@" in way, "@Vector::getDistance($los::position, GameBase::getPosition(%client))@" meters up."); DeleteObject(%camera); return false; } } |
So, if there's something in the way, it reports a false value, which will immediately stop checking. If it makes it through all those checks without seeing an object, it will report a true.
To use this, put this in your deployment code:
| Code: |
| // check for other airbases/buildings/etc -Noxwizard %pos = $los::position; if(!checkarea(%client,%pos,95,20,20)) return false; |
What that does is checks the area you've defined. So this spawns a camera up 95 meters above you, then looks up 20 meters, then looks around in a 20 meter radius. If it doesn't find anything, it'll go onto the next items in the deploy code. If it does find something, it will halt the deployment.