Example 1 with EarClippingTriangulator
use of com.badlogic.gdx.math.EarClippingTriangulator in project RubeLoader by tescott.
the class RubeLoaderTest method createPolySpatialsFromRubeFixtures.
/**
* Creates an array of PolySpatials based on fixture information from the scene. Note that
* fixtures create aligned textures.
*
* @param scene
*/
private void createPolySpatialsFromRubeFixtures(RubeScene scene) {
Array<Body> bodies = scene.getBodies();
EarClippingTriangulator ect = new EarClippingTriangulator();
if ((bodies != null) && (bodies.size > 0)) {
polySpatials = new Array<PolySpatial>();
Vector2 bodyPos = new Vector2();
// for each body in the scene...
for (int i = 0; i < bodies.size; i++) {
Body body = bodies.get(i);
bodyPos.set(body.getPosition());
Array<Fixture> fixtures = body.getFixtureList();
if ((fixtures != null) && (fixtures.size > 0)) {
// for each fixture on the body...
for (int j = 0; j < fixtures.size; j++) {
Fixture fixture = fixtures.get(j);
String textureName = (String) scene.getCustom(fixture, "TextureMask", null);
if (textureName != null) {
String textureFileName = "data/" + textureName;
Texture texture = textureMap.get(textureFileName);
TextureRegion textureRegion = null;
if (texture == null) {
texture = new Texture(textureFileName);
texture.setWrap(TextureWrap.Repeat, TextureWrap.Repeat);
textureMap.put(textureFileName, texture);
textureRegion = new TextureRegion(texture);
textureRegionMap.put(texture, textureRegion);
} else {
textureRegion = textureRegionMap.get(texture);
}
// only handle polygons at this point -- no chain, edge, or circle fixtures.
if (fixture.getType() == Shape.Type.Polygon) {
PolygonShape shape = (PolygonShape) fixture.getShape();
int vertexCount = shape.getVertexCount();
float[] vertices = new float[vertexCount * 2];
// static bodies are texture aligned and do not get drawn based off of the related body.
if (body.getType() == BodyType.StaticBody) {
for (int k = 0; k < vertexCount; k++) {
shape.getVertex(k, mTmp);
mTmp.rotate(body.getAngle() * MathUtils.radiansToDegrees);
// convert local coordinates to world coordinates to that textures are
mTmp.add(bodyPos);
// aligned
vertices[k * 2] = mTmp.x * PolySpatial.PIXELS_PER_METER;
vertices[k * 2 + 1] = mTmp.y * PolySpatial.PIXELS_PER_METER;
}
short[] triangleIndices = ect.computeTriangles(vertices).toArray();
PolygonRegion region = new PolygonRegion(textureRegion, vertices, triangleIndices);
PolySpatial spatial = new PolySpatial(region, Color.WHITE);
polySpatials.add(spatial);
} else {
// all other fixtures are aligned based on their associated body.
for (int k = 0; k < vertexCount; k++) {
shape.getVertex(k, mTmp);
vertices[k * 2] = mTmp.x * PolySpatial.PIXELS_PER_METER;
vertices[k * 2 + 1] = mTmp.y * PolySpatial.PIXELS_PER_METER;
}
short[] triangleIndices = ect.computeTriangles(vertices).toArray();
PolygonRegion region = new PolygonRegion(textureRegion, vertices, triangleIndices);
PolySpatial spatial = new PolySpatial(region, body, Color.WHITE);
polySpatials.add(spatial);
}
}
}
}
}
}
}
}
Also used :
PolygonShape(com.badlogic.gdx.physics.box2d.PolygonShape)
EarClippingTriangulator(com.badlogic.gdx.math.EarClippingTriangulator)
Texture(com.badlogic.gdx.graphics.Texture)
TextureRegion(com.badlogic.gdx.graphics.g2d.TextureRegion)
Vector2(com.badlogic.gdx.math.Vector2)
Fixture(com.badlogic.gdx.physics.box2d.Fixture)
Body(com.badlogic.gdx.physics.box2d.Body)
PolygonRegion(com.badlogic.gdx.graphics.g2d.PolygonRegion)
Aggregations
Texture (com.badlogic.gdx.graphics.Texture)1
PolygonRegion (com.badlogic.gdx.graphics.g2d.PolygonRegion)1
TextureRegion (com.badlogic.gdx.graphics.g2d.TextureRegion)1
EarClippingTriangulator (com.badlogic.gdx.math.EarClippingTriangulator)1
Vector2 (com.badlogic.gdx.math.Vector2)1
Body (com.badlogic.gdx.physics.box2d.Body)1
Fixture (com.badlogic.gdx.physics.box2d.Fixture)1
PolygonShape (com.badlogic.gdx.physics.box2d.PolygonShape)1
