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-rw-r--r--core/src/ch/asynk/tankontank/screens/GameScreen.java16
1 files changed, 8 insertions, 8 deletions
diff --git a/core/src/ch/asynk/tankontank/screens/GameScreen.java b/core/src/ch/asynk/tankontank/screens/GameScreen.java
index 1324a53..26db2d6 100644
--- a/core/src/ch/asynk/tankontank/screens/GameScreen.java
+++ b/core/src/ch/asynk/tankontank/screens/GameScreen.java
@@ -17,6 +17,7 @@ import com.badlogic.gdx.scenes.scene2d.Stage;
import com.badlogic.gdx.scenes.scene2d.ui.Image;
import com.badlogic.gdx.scenes.scene2d.ui.Label;
+import com.badlogic.gdx.math.Vector2;
import com.badlogic.gdx.math.MathUtils;
import com.badlogic.gdx.utils.viewport.FitViewport;
import com.badlogic.gdx.utils.viewport.ScreenViewport;
@@ -25,13 +26,10 @@ import ch.asynk.tankontank.TankOnTank;
public class GameScreen extends AbstractScreen
{
- static private final int MOVE_STEP = 3;
static private final float ZOOM_MAX = 0.2f;
static private final float ZOOM_GESTURE_FACTOR = 300.f;
static private final float ZOOM_SCROLL_FACTOR = 10.0f;
- private int touchX;
- private int touchY;
private float maxZoomOut;
final OrthographicCamera cam;
@@ -42,6 +40,9 @@ public class GameScreen extends AbstractScreen
private Stage hud;
private Stage gameStage;
+ private Vector2 screenToViewport = new Vector2(); // ratio
+ private Vector2 dragPos = new Vector2(); // screen coordinates
+
public GameScreen(final TankOnTank game)
{
super(game);
@@ -84,9 +85,8 @@ public class GameScreen extends AbstractScreen
@Override
public boolean touchDragged(int x, int y, int pointer)
{
- cam.translate((touchX - x) * cam.zoom * MOVE_STEP, (y - touchY) * cam.zoom * MOVE_STEP, 0);
- touchX = x;
- touchY = y;
+ cam.translate(((dragPos.x - x) * cam.zoom * screenToViewport.x), ((y - dragPos.y) * cam.zoom * screenToViewport.y), 0);
+ dragPos.set(x, y);
clampCameraPos();
return true;
}
@@ -94,8 +94,7 @@ public class GameScreen extends AbstractScreen
public boolean touchDown(int x, int y, int pointer, int button)
{
if (button == Input.Buttons.LEFT) {
- touchX = x;
- touchY = y;
+ dragPos.set(x, y);
}
return true;
}
@@ -146,6 +145,7 @@ public class GameScreen extends AbstractScreen
gameStage.getViewport().update(width, height);
maxZoomOut = Math.min((map.getWidth() / cam.viewportWidth), (map.getHeight() / cam.viewportHeight));
cam.zoom = MathUtils.clamp(cam.zoom, ZOOM_MAX, maxZoomOut);
+ screenToViewport.set((cam.viewportWidth / width), (cam.viewportHeight / height));
}
@Override