-Add utility to render outlines of shapes

narfman0 · Dec 2, 2014 · a6303dd · a6303dd
1 parent 00d6e23
commit a6303dd
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Showing 2 changed files with 23 additions and 2 deletions.
diff --git a/src/com/blastedstudios/gdxworld/util/MaskTextureStruct.java b/src/com/blastedstudios/gdxworld/util/MaskTextureStruct.java
@@ -5,6 +5,7 @@
 import com.badlogic.gdx.graphics.Mesh;
 import com.badlogic.gdx.graphics.Texture;
 import com.badlogic.gdx.graphics.glutils.ShaderProgram;
+import com.blastedstudios.gdxworld.world.shape.GDXPolygon;
 
 public class MaskTextureStruct {
 	private final static String FRAGMENT_SHADER = 
@@ -32,10 +33,12 @@ public class MaskTextureStruct {
 	static final ShaderProgram SHADER = new ShaderProgram(VERTEX_SHADER, FRAGMENT_SHADER);
 	public final Mesh mesh;
 	public final Texture texture;
+	public final GDXPolygon polygon;
 
-	public MaskTextureStruct(Mesh mesh, Texture texture){
+	public MaskTextureStruct(Mesh mesh, Texture texture, GDXPolygon polygon){
 		this.mesh = mesh;
 		this.texture = texture;
+		this.polygon = polygon;
 	}
 
 	public void render(Camera camera){

diff --git a/src/com/blastedstudios/gdxworld/util/TiledMeshRenderer.java b/src/com/blastedstudios/gdxworld/util/TiledMeshRenderer.java
@@ -5,10 +5,13 @@
 import java.util.List;
 
 import com.badlogic.gdx.graphics.Camera;
+import com.badlogic.gdx.graphics.Color;
 import com.badlogic.gdx.graphics.GL20;
 import com.badlogic.gdx.graphics.Mesh;
 import com.badlogic.gdx.graphics.Texture;
 import com.badlogic.gdx.graphics.VertexAttribute;
+import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
+import com.badlogic.gdx.graphics.glutils.ShapeRenderer.ShapeType;
 import com.badlogic.gdx.math.Vector2;
 import com.blastedstudios.gdxworld.math.EarClippingTriangulator;
 import com.blastedstudios.gdxworld.ui.GDXRenderer;
@@ -17,6 +20,7 @@
 public class TiledMeshRenderer {
 	private final LinkedList<MaskTextureStruct> maskTextures = new LinkedList<>();
 	private final static float UV_SCALE = Properties.getFloat("tiled.uv.scale", 10f);
+	private final static ShapeRenderer SHAPE_RENDERER = new ShapeRenderer();
 
 	public TiledMeshRenderer(GDXRenderer gdxRenderer, Collection<GDXPolygon> polygons){
 		for(GDXPolygon polygon : polygons)
@@ -30,7 +34,7 @@ public static MaskTextureStruct buildMesh(GDXRenderer gdxRenderer, GDXPolygon po
 		Mesh mesh = new Mesh(true, verticesAbsolute.size(), 0, VertexAttribute.Position(), VertexAttribute.TexCoords(0));
 		Texture texture = gdxRenderer.getTexture(polygon.getResource());
 		mesh.setVertices(convert(verticesAbsolute, polygon.getCenter()));
-		return new MaskTextureStruct(mesh, texture);
+		return new MaskTextureStruct(mesh, texture, polygon);
 	}
 
 	private static float[] convert(final List<Vector2> vertices, final Vector2 center){
@@ -54,5 +58,19 @@ public void render(Camera camera){
 			struct.mesh.render(MaskTextureStruct.SHADER, GL20.GL_TRIANGLES);
 		}
 		MaskTextureStruct.SHADER.end();
+		if(Properties.getBool("tiled.renderer.drawoutline", true))
+			renderOutlines(camera);
+	}
+
+	public void renderOutlines(Camera camera){
+		SHAPE_RENDERER.setColor(Color.BLACK);
+		SHAPE_RENDERER.setProjectionMatrix(camera.combined);
+		SHAPE_RENDERER.begin(ShapeType.Line);
+		for(MaskTextureStruct struct : maskTextures){
+			List<Vector2> verts = struct.polygon.getVerticesAbsolute();
+			for(int i=1; i<verts.size(); i++)
+				SHAPE_RENDERER.line(verts.get(i-1), verts.get(i));
+		}
+		SHAPE_RENDERER.end();
 	}
 }