Diff: Graphics/Graphics.cpp

Revision:

28:e09b7ac11dea

Parent:

26:baa7077449e7

Child:

29:d59fbe128d1f

diff -r 2ed9e3c9f4e9 -r e09b7ac11dea Graphics/Graphics.cpp
--- a/Graphics/Graphics.cpp	Fri Apr 05 17:16:59 2019 +0000
+++ b/Graphics/Graphics.cpp	Fri Apr 12 20:53:00 2019 +0000
@@ -3,27 +3,30 @@
 
 namespace Graphics {
     
+    // "private" methods
+    void drawPoint(int x, int y);
+    void drawLine(int x1, int y1, int x2, int y2);
+    void drawBox(int x1, int y1, int x2, int y2);
+    void drawDottedLine(int x1, int y1, int x2, int y2);
+    bool lightOn;
+    
+    int shake_frames;
+    int offsetX = 0, offsetY = 0;
+    
     namespace LCD {
         const int MAX_Y = 47;
         
         N5110 * lcd;
         
         int YToLcdX(int y) {
-            return y;
+            return y + offsetX;
         }
         
         int XToLcdY(int x) {
-            return MAX_Y - x;
+            return MAX_Y - x + offsetY;
         }
     };
     
-    // "private" methods
-    void drawPoint(int x, int y);
-    void drawLine(int x1, int y1, int x2, int y2);
-    void drawBox(int x1, int y1, int x2, int y2);
-    void drawDottedLine(int x1, int y1, int x2, int y2);
-    bool lightOn;
-    
     void init() {
         LCD::lcd = new N5110(PTC9,PTC0,PTC7,PTD2,PTD1,PTC11);
         LCD::lcd->init();
@@ -41,6 +44,14 @@
     }
     
     void render() {
+        if (shake_frames > 0) {
+            offsetX = (rand() % 8) - 4;
+            offsetY = (rand() % 8) - 4;
+        } else {
+            offsetX = 0;
+            offsetY = 0;
+        }
+        shake_frames = shake_frames > 0 ? shake_frames - 1 : shake_frames;
         LCD::lcd->refresh();
     }
     
@@ -136,6 +147,12 @@
             drawDottedLine(minX, maxY, maxX, maxY);
             drawDottedLine(maxX, maxY, maxX, minY);
         }
+        
+        void shake(int frames) {
+            if (frames > shake_frames) {
+                shake_frames = frames;
+            }
+        }
     };
 
     namespace UI {