public void AddObject(Instance inst)
{
if (ContainsInstance(inst))
{
throw new PhysicsException("Object already in world.", "PhysicsWorld.AddObjecct()");
}
PhysicsBodyType phyType = inst.PhysicsAttributes.PhysicsBodyType;
BodyType bodyType = inst.PhysicsAttributes.BodyType;
Size bodySize = inst.PhysicsAttributes.PhysicsBodySize;
float bodyDensity = inst.PhysicsAttributes.Density;
float bodyRotation = inst.PhysicsVariables.Direction;
float bodyRadius = inst.PhysicsAttributes.Radius;
Vector2 bodyPosition = ConvertUnits.ToSimUnits(new Vector2(inst.Position.X, inst.Position.Y));
Body body = null;
body = phyType switch
{
PhysicsBodyType.Box => BodyFactory.CreateRectangle(_velcroWorld, ConvertUnits.ToSimUnits(bodySize.W), ConvertUnits.ToSimUnits(bodySize.H), bodyDensity, bodyPosition, bodyRotation, bodyType, inst),
PhysicsBodyType.Circle => BodyFactory.CreateCircle(_velcroWorld, ConvertUnits.ToSimUnits(bodyRadius), bodyDensity, bodyPosition, bodyType, inst),
_ => throw new PhysicsException("Invalid PhysicsBodyType.", "PhysicsWorld.AddObject()"),
};
BodyDefPair pair = new BodyDefPair(inst, body);
_bodyDefPairs.Add(pair);
Debug.Log("PhysicsWorld.AddObject()", $"Added object of type '{inst.BaseReference.ObjectName}' @ ({body.Position.X}, {body.Position.Y})[GamePos: {ConvertUnits.ToDisplayUnits(body.Position.X)}, {ConvertUnits.ToDisplayUnits(body.Position.Y)}]");
}
public PhysicsAttributes(BodyType bodyType, int width, int height, float density)
{
PhysicsBodyType = PhysicsBodyType.Box;
BodyType = bodyType;
PhysicsBodySize = new Size(width, height);
Density = density;
}
public PhysicsAttributes(BodyType bodyType, float radius, float density)
{
PhysicsBodyType = PhysicsBodyType.Circle;
BodyType = bodyType;
PhysicsBodySize = new Size(0, 0);
Radius = radius;
Density = density;
}
public PhysicsAttributes(PhysicsAttributes copy)
{
BodyType = copy.BodyType;
PhysicsBodySize = copy.PhysicsBodySize;
PhysicsBodyType = copy.PhysicsBodyType;
Density = copy.Density;
Radius = copy.Radius;
}
public PhysicsAttributes()
{
PhysicsBodyType = PhysicsBodyType.Box;
BodyType = BodyType.Static;
PhysicsBodySize = new Size();
Density = 0f;
Radius = 0f;
}
public void DrawCollision(Instance inst, int sceneX, int sceneY)
{
PhysicsBodyType phyBody = inst.PhysicsAttributes.PhysicsBodyType;
Coord origin = inst.Position;
Coord scene = new Coord(sceneX, sceneY);
Coord position = new Coord(origin.X - scene.X, origin.Y - scene.Y);
ColorRGBA def = GetRendererDrawColor();
SetRenderDrawColor(new ColorRGBA(255, 0, 0, 255));
switch (phyBody)
{
case PhysicsBodyType.Box:
int w = inst.PhysicsAttributes.PhysicsBodySize.W / 2;
int h = inst.PhysicsAttributes.PhysicsBodySize.H / 2;
SDL_Rect rect = new SDL_Rect();
rect.x = position.X - w;
rect.y = position.Y - h;
rect.w = w * 2;
rect.h = h * 2;
if (SDL_RenderDrawRect(Renderer, ref rect) != 0)
{
Debug.Log("GraphicsEngine.DrawCollision", $"Could not draw collision rect for instance: {inst.Hash}");
}
//Debug.Log($"Drawing coll-box on: ({rect.x}, {rect.y})[{rect.w}x{rect.h}]");
break;
case PhysicsBodyType.Circle:
if (SDL_RenderDrawCircle(Renderer, position.X, position.Y, Convert.ToInt32(inst.PhysicsAttributes.Radius)) != 0)
{
Debug.Log("GraphicsEngine.DrawCollision", $"Could not draw collision circle for instance: {inst.Hash}");
}
break;
}
SetRenderDrawColor(def);
}
