invert shader added

android/assets/shaders/default_frag.glsl

@@ -1,16 +0,0 @@
-#ifdef GL_ES
-#define LOWP lowp
-    precision mediump float;
-#else
-    #define LOWP
-#endif
-
-varying LOWP vec4 v_color;
-varying vec2 v_texCoords;
-
-uniform sampler2D u_texture;
-
-void main()
-{
-    gl_FragColor = v_color * texture2D(u_texture, v_texCoords);
-}

android/assets/shaders/default_vertex.glsl

@@ -1,13 +0,0 @@
-attribute vec4 a_position;
-attribute vec4 a_color;
-attribute vec2 a_texCoord;
-
-uniform mat4 u_projTrans;
-
-varying vec4 v_color;
-varying vec2 v_texCoords;
-
-void main()
-{
-    gl_Position =  u_projTrans * a_position;
-}

android/assets/shaders/invert_frag.glsl

@@ -0,0 +1,16 @@
+#ifdef GL_ES
+#define LOWP lowp
+precision mediump float;
+#else
+#define LOWP
+#endif
+
+varying LOWP vec4 vColor;
+varying vec2 vTexCoord;
+
+uniform sampler2D u_texture;
+void main() {
+	vec4 texColor = texture2D(u_texture, vTexCoord);
+	texColor.rgb = 1.0 - texColor.rgb;
+	gl_FragColor = texColor * vColor;
+}

android/assets/shaders/invert_vert.glsl

@@ -0,0 +1,15 @@
+attribute vec4 a_position;
+attribute vec4 a_color;
+attribute vec2 a_texCoord0;
+
+uniform mat4 u_projTrans;
+
+varying vec4 vColor;
+varying vec2 vTexCoord;
+
+void main() {
+	vColor = a_color;
+	vTexCoord = a_texCoord0;
+
+	gl_Position = u_projTrans * a_position;
+}

core/src/zero1hd/polyjet/Polyjet.java

@@ -18,7 +18,6 @@ import com.badlogic.gdx.graphics.g2d.ParticleEffect;
 import com.badlogic.gdx.graphics.g2d.TextureAtlas;
 import com.badlogic.gdx.graphics.g2d.freetype.FreeTypeFontGenerator;
 import com.badlogic.gdx.graphics.g2d.freetype.FreeTypeFontGenerator.FreeTypeFontParameter;
-import com.badlogic.gdx.graphics.glutils.ShaderProgram;
 import com.badlogic.gdx.math.MathUtils;
 import com.badlogic.gdx.scenes.scene2d.ui.Button.ButtonStyle;
 import com.badlogic.gdx.scenes.scene2d.ui.CheckBox.CheckBoxStyle;
@@ -51,7 +50,6 @@ public class Polyjet extends Game {
 	TextureAtlas skinAtlas;
 	private Preferences prefs;
 	
-	public ShaderProgram defaultShader;
 	
 	@Override
 	public void create() {
@@ -89,8 +87,6 @@ public class Polyjet extends Game {
 		assetManager.setLoader(ParticleEffect.class, new ParticleEffectLoader(genericFileFinder));
 		assetManager.setLoader(Sound.class, new SoundLoader(genericFileFinder));
 		
-		defaultShader = new ShaderProgram(Gdx.files.internal("shaders/default_vertex.glsl").readString(), Gdx.files.internal("shaders/default_frag.glsl").readString());
-		
 		default_fontGenerator = new FreeTypeFontGenerator(Gdx.files.internal("fonts/Gasalt-Regular.ttf"));
 		darktech_ldr_fontGenerator = new FreeTypeFontGenerator(Gdx.files.internal("fonts/darktech_ldr.ttf"));
 		

core/src/zero1hd/polyjet/screens/MainMenu.java

@@ -5,6 +5,7 @@ import com.badlogic.gdx.Input.Keys;
 import com.badlogic.gdx.Screen;
 import com.badlogic.gdx.ScreenAdapter;
 import com.badlogic.gdx.graphics.GL20;
+import com.badlogic.gdx.graphics.glutils.ShaderProgram;
 import com.badlogic.gdx.math.Vector3;
 import com.badlogic.gdx.scenes.scene2d.InputEvent;
 import com.badlogic.gdx.scenes.scene2d.InputListener;
@@ -30,11 +31,23 @@ public class MainMenu extends ScreenAdapter implements TransitionAdapter {
 	private CreditsPage creditsPage;
 	private MoreOptionsPage moreOptionsPage;
 	
-	Polyjet core;
+	private Polyjet core;
+	
+	private ShaderProgram invert;
 	public MainMenu(final Polyjet core) {
 		this.core = core;
 		stage = new Stage(new ScreenViewport());
 		targetPosition = new Vector3(stage.getCamera().position);
+		invert = new ShaderProgram(Gdx.files.internal("shaders/invert_vert.glsl").readString(), Gdx.files.internal("shaders/invert_frag.glsl").readString());
+		ShaderProgram.pedantic = false;
+		if (!invert.isCompiled()) {
+			System.err.println(invert.getLog());
+			System.exit(0);
+		}
+		if (invert.getLog().length()!=0)
+			System.out.println(invert.getLog());
+		
+		stage.getBatch().setShader(invert);
 	}
 	
 	public Screen postTransition() {
@@ -108,7 +121,6 @@ public class MainMenu extends ScreenAdapter implements TransitionAdapter {
         Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
 		stage.act();
 		
-		stage.getBatch().setShader(core.defaultShader);
 		stage.draw();
 		if (stage.getCamera().position.x != targetPosition.x || stage.getCamera().position.y != targetPosition.y) {
 			stage.getCamera().position.lerp(targetPosition, 0.25f);

core/src/zero1hd/polyjet/ui/pages/MainPage.java

@@ -1,6 +1,7 @@
 package zero1hd.polyjet.ui.pages;
 
 import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.graphics.Color;
 import com.badlogic.gdx.graphics.Texture;
 import com.badlogic.gdx.math.Vector3;
 import com.badlogic.gdx.scenes.scene2d.Actor;
@@ -39,7 +40,6 @@ public class MainPage extends Page {
 		options.addListener(new ChangeListener() {
 			@Override
 			public void changed(ChangeEvent event, Actor actor) {
-				// TODO Options screen
 				targetPosition.x = 1.5f * getWidth();
 			}
 		});
@@ -77,13 +77,11 @@ public class MainPage extends Page {
 
 		cyberCircle = new Image(core.getAssetManager().get("Tech-Circle1.png", Texture.class));
 		cyberCircle.setOrigin(cyberCircle.getWidth() / 2, cyberCircle.getHeight() / 2);
-		cyberCircle.setColor(0.7f, 0.7f, 0.7f, 0.8f);
 		cyberCircle.addAction(Actions.forever(Actions.rotateBy(-360f, 10f)));
 		playButton.addActor(cyberCircle);
 		playButton.setSize(cyberCircle.getWidth(), cyberCircle.getHeight());
 
 		begin = new Label("Play", core.getDefaultSkin(), "special-font", core.getDefaultSkin().getColor("default"));
-		begin.setColor(1f, 1f, 1f, 1f);
 		playButton.addActor(begin);
 		begin.setPosition(((playButton.getWidth() - begin.getWidth()) / 2)-10,
 				(playButton.getHeight() - begin.getHeight()) / 2);