From bd5d36de7d5fd8d8bf8b27dbe64cc79010f1f4bb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=A9my=20Zurcher?= <jeremy@asynk.ch>
Date: Fri, 12 Sep 2014 16:24:10 +0200
Subject: move camera position clamp from render() to input processor

---
 core/src/ch/asynk/tankontank/screens/GameScreen.java | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/core/src/ch/asynk/tankontank/screens/GameScreen.java b/core/src/ch/asynk/tankontank/screens/GameScreen.java
index 9f86bcb..a460519 100644
--- a/core/src/ch/asynk/tankontank/screens/GameScreen.java
+++ b/core/src/ch/asynk/tankontank/screens/GameScreen.java
@@ -69,6 +69,7 @@ public class GameScreen extends AbstractScreen
             {
                 cam.zoom += ((initialDistance - distance) / 300.f);
                 cam.zoom = MathUtils.clamp(cam.zoom, 0.4f, maxZoom);
+                clampCameraPos();
                 return true;
             }
         }));
@@ -79,6 +80,7 @@ public class GameScreen extends AbstractScreen
                 cam.translate((touchX - x) * cam.zoom, (y - touchY) * cam.zoom, 0);
                 touchX = x;
                 touchY = y;
+                clampCameraPos();
                 return true;
             }
             @Override
@@ -95,6 +97,7 @@ public class GameScreen extends AbstractScreen
             {
                 cam.zoom += amount / ZOOM_FACTOR;
                 cam.zoom = MathUtils.clamp(cam.zoom, 0.4f, maxZoom);
+                clampCameraPos();
                 return true;
             }
         });
@@ -102,17 +105,20 @@ public class GameScreen extends AbstractScreen
         return multiplexer;
     }
 
+    private void clampCameraPos()
+    {
+        float cx = cam.viewportWidth * cam.zoom / 2f;
+        float cy = cam.viewportHeight * cam.zoom / 2f;
+        cam.position.x = MathUtils.clamp(cam.position.x, cx, (map.getWidth() - cx));
+        cam.position.y = MathUtils.clamp(cam.position.y, cy, (map.getHeight() - cy));
+    }
+
     @Override
     public void render(float delta)
     {
         Gdx.gl.glClearColor(0, 0, 0.2f, 1);
         Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
 
-        // handleInput();
-        float width = cam.viewportWidth * cam.zoom / 2f;
-        float height = cam.viewportHeight * cam.zoom / 2f;
-        cam.position.x = MathUtils.clamp(cam.position.x, width, (mapSprite.getWidth() - width));
-        cam.position.y = MathUtils.clamp(cam.position.y, height, (mapSprite.getHeight() - height));
         cam.update();
 
         batch.setProjectionMatrix(cam.combined);
-- 
cgit v1.1-2-g2b99