From 8789118ca721295ca7d9cee91749ce66f7edc95f Mon Sep 17 00:00:00 2001
From: Sebastian Cabrera <scabrera@inbox.com>
Date: Thu, 29 Aug 2019 15:56:59 -0400
Subject: [PATCH] Renderer optimization (occlusion)

---
 .../bz/bronze/pixels/engine/Renderer.class    | Bin 1690 -> 1993 bytes
 .../bz/bronze/pixels/game/GameManager.class   | Bin 1400 -> 1522 bytes
 .../src/bz/bronze/pixels/engine/Renderer.java |  33 ++++++++++++++++--
 .../bz/bronze/pixels/game/GameManager.java    |   6 +++-
 4 files changed, 36 insertions(+), 3 deletions(-)

diff --git a/pixels/bin/bz/bronze/pixels/engine/Renderer.class b/pixels/bin/bz/bronze/pixels/engine/Renderer.class
index b7e4630b945c9dc7e068d19676412808c196b377..350710500ccef9201116bb240bc9c9bd1339cc8a 100644
GIT binary patch
delta 601
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z<8Wl08`f}zKf<G{Y+34}YeWI#Bd!yL+-=-oj%er|dr8J1-ePToK;a2avbBW9GkTsS
kGF0IGcW7NJ2!#dFU4YTrnBn0+kizfmH>(A1vc81Pf0%)7V*mgE

delta 297
zcmXwzy-EW?6otRpnOSjMwVFmuVUxrJM2N1aVGU@J_!HxA+HFK1z}_ZrU}u*qbr4br
zTG^Oq@JS>X?{1KRd(S=Ro^$7G`DM|Kf8RcU9lAs3^xmez+}}NR97nVwjyahTU4<^M
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qpUu#fh(V671!;M8F@_lCspMA6uINjc389)`RpEyPao-3VaQg>>jW1*X

diff --git a/pixels/bin/bz/bronze/pixels/game/GameManager.class b/pixels/bin/bz/bronze/pixels/game/GameManager.class
index 026ee46af165a7b77a4753c54450300e43be5a78..746565e4c87f34e9cfd7b62982f5a7c3ea97bb91 100644
GIT binary patch
delta 634
zcmYk3T~8BH5Qd+#+mGyaiv?4uAC-a@+oG(3ii+PKNTG;YEUj0rvT4wQBrQe~6E3|r
z>y7>a<0aY@BMFJO{t$nFS6&&XTTnB}%$zyzyzk68zs#Qz^ZW0w+rSu=4fCyv8z>H2
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zA}395aXZX}x2>i1N%Gzg?R7N8T?>PIifpFfFFtEU#<L|;o}*|n=Y7=Q8+!;4qnmE8
z5a?Skqlv-ZPb8c4#SXSezay-FVQ53jI=$k%Btl%`K6*%qA(`LCeh$b<2sp)ve88yW
zI;uy~)0`0>kwTS_54VSMP2wG?CTDZab>b~91ZxYswaaZli)&J9akD*w=8s_d{f8JP
z`JcS~SKeldX;CvMFtejNC7UW?NNka+Y@sTf+}ULIGf7cvabMU+cIZ1BrsP@rMQ*^C
QusY2=pd=)Ud4HJlABOp3jQ{`u

delta 494
zcmYL^$ua|B6otRPJ5#qND5T92F$IZvo`*<GOJpBqLs?*LsmfAYc?v@+s;Ke+%EkkD
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u_A}AUGb;1Q@*^t`gr{X)p0$#F1-cNMBziL;xwRDE7Ml&3DK-T)wtfH%kwH}e

diff --git a/pixels/src/bz/bronze/pixels/engine/Renderer.java b/pixels/src/bz/bronze/pixels/engine/Renderer.java
index acbfa5b..637dded 100644
--- a/pixels/src/bz/bronze/pixels/engine/Renderer.java
+++ b/pixels/src/bz/bronze/pixels/engine/Renderer.java
@@ -35,8 +35,37 @@ public class Renderer {
     }
 
     public void drawImage(Image image, int offX, int offY) {
-        for (int y = 0; y < image.getH(); y++) {
-            for (int x = 0; x < image.getW(); x++) {
+        int xAdjust = 0;
+        int yAdjust = 0;
+        int widthAdjust = image.getW();
+        int heightAdjust = image.getH();
+
+        if (offX < -image.getW()) { return; }
+
+        if (offY < -image.getH()) { return; }
+
+        if (offX >= pW) { return; }
+
+        if (offY >= pH) { return; }
+
+        if (offX < 0) {
+            xAdjust -= offX;
+        }
+
+        if (offY < 0) {
+            yAdjust -= offY;
+        }
+
+        if (widthAdjust + offX >= pW) {
+            widthAdjust -= widthAdjust + offX - pW;
+        }
+
+        if (heightAdjust + offY >= pH) {
+            heightAdjust -= heightAdjust + offY - pH;
+        }
+        
+        for (int y = yAdjust; y < heightAdjust; y++) {
+            for (int x = xAdjust; x < widthAdjust; x++) {
                 setPixel(x + offX, y + offY, image.getP()[x + y * image.getW()]);
             }
         }
diff --git a/pixels/src/bz/bronze/pixels/game/GameManager.java b/pixels/src/bz/bronze/pixels/game/GameManager.java
index bb59da3..df6dffe 100644
--- a/pixels/src/bz/bronze/pixels/game/GameManager.java
+++ b/pixels/src/bz/bronze/pixels/game/GameManager.java
@@ -1,5 +1,7 @@
 package bz.bronze.pixels.game;
 
+import java.awt.event.KeyEvent;
+
 import bz.bronze.pixels.engine.AbstractGame;
 import bz.bronze.pixels.engine.GameContainer;
 import bz.bronze.pixels.engine.Renderer;
@@ -16,7 +18,9 @@ public class GameManager extends AbstractGame {
 
     @Override
     public void update(float dt) {
-        
+        if (gc.input.isKey(KeyEvent.VK_ESCAPE)) {
+            System.exit(0);
+        }
     }
 
     @Override