ELEC2645 (2019/20) / Mbed 2 deprecated ELEC2645_Project_el18jkeo

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Dependencies:   mbed

Diff: Alien/Alien.cpp

Revision:
13:b85f14d35be1
Parent:
12:be491ab6e742
Child:
14:e88bcf5c0887
--- a/Alien/Alien.cpp	Wed Apr 01 14:40:29 2020 +0000
+++ b/Alien/Alien.cpp	Wed Apr 01 16:00:44 2020 +0000
@@ -3,6 +3,8 @@
 
 void Alien::init(int x, int y, int size) {
     Alive = true;
+    StartX = x;
+    StartY = y;
     X = x;
     Y = y;
     Size = size;
@@ -20,16 +22,19 @@
     return p;
 }
 
-void Alien::update(N5110 &lcd) {
+void Alien::update(N5110 &lcd, int step_x, int remainder_x) {
     X+=Speed;
-    
-    if (X < 1) {
-        X = 1;
+    int _step_x = step_x;
+    int _remainder_x = remainder_x;
+    if (X < 1 + _remainder_x*_step_x) {
+        X = 1 + _remainder_x*_step_x;
         Speed = -Speed;
+        Y = Y + 2;
     }
-    if (X > WIDTH - Size - 1) {
-        X = WIDTH - Size - 1;
+    if (X > WIDTH - Size - 1 - (4-_remainder_x)*_step_x) {
+        X = WIDTH - Size - 1 - (4-_remainder_x)*_step_x;
         Speed = -Speed;
+        Y = Y + 2;
     }
     collision(lcd);
 }