From 2473bc452959f1c84b03c4b9202d601b3325143d Mon Sep 17 00:00:00 2001
From: Clyne Sullivan <tullivan99@gmail.com>
Date: Sun, 24 Apr 2016 09:53:48 -0400
Subject: library-ized ticks

---
 src/gametime.cpp | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 src/gametime.cpp

(limited to 'src/gametime.cpp')

diff --git a/src/gametime.cpp b/src/gametime.cpp
new file mode 100644
index 0000000..be63885
--- /dev/null
+++ b/src/gametime.cpp
@@ -0,0 +1,50 @@
+#include <gametime.hpp>
+
+#include <common.hpp>
+
+static unsigned int tickCount = 0;
+static unsigned int deltaTime = 1;
+
+// millisecond timers
+static unsigned int currentTime = 0;
+static unsigned int prevTime, prevPrevTime;
+
+namespace gtime {
+    void setTickCount(unsigned int t) {
+        tickCount = t;
+    }
+
+    unsigned int getTickCount(void) {
+        return tickCount;
+    }
+
+    unsigned int getDeltaTime(void) {
+        return deltaTime;
+    }
+
+    void tick(void) {
+        tickCount++;
+    }
+
+    void tick(unsigned int ticks) {
+        tickCount += ticks;
+    }
+
+    void mainLoopHandler(void) {
+    	if (!currentTime)
+    		currentTime = prevTime = millis();
+
+    	currentTime = millis();
+    	deltaTime	= currentTime - prevTime;
+    	prevTime	= currentTime;
+    }
+
+    bool tickHasPassed(void) {
+        if (prevPrevTime + MSEC_PER_TICK <= currentTime) {
+    		prevPrevTime = currentTime;
+            return true;
+    	}
+
+        return false;
+    }
+}
-- 
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