NXP Rapid IoT prototyping kit port of Silabs "hungry gecko" smake-like game. https://os.mbed.com/teams/SiliconLabs/code/Hungry_gecko/

Dependencies:   lib_sx9500 GraphicsDisplay ColorMemLCD Large_fonts

See a detailed description of this project on Hackster.io . https://www.hackster.io/marcomerli/riotwear-snake-ca6dfc

Revision:
80:77210aa1ad9c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/food.cpp	Thu Dec 26 16:47:58 2019 +0000
@@ -0,0 +1,99 @@
+/***************************************************************************//**
+ * @file food.cpp
+ * @brief class for creating a food-like object and keeps track of its momvement
+ *******************************************************************************
+ * @section License
+ * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
+ *******************************************************************************
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ *
+ * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
+ * obligation to support this Software. Silicon Labs is providing the
+ * Software "AS IS", with no express or implied warranties of any kind,
+ * including, but not limited to, any implied warranties of merchantability
+ * or fitness for any particular purpose or warranties against infringement
+ * of any proprietary rights of a third party.
+ *
+ * Silicon Labs will not be liable for any consequential, incidental, or
+ * special damages, or any other relief, or for any claim by any third party,
+ * arising from your use of this Software.
+ *
+ ******************************************************************************/
+
+#include "food.h"
+#include "gecko.h"
+#define NFOODPIX 18
+
+const uint8_t food_px_map[NFOODPIX] = {0x02, 0x03, 0x04, 0x11, 0x13, 0x15, 0x20, 0x23, 0x26, 0x30, 0x36, 0x40, 0x46, 0x51, 0x55, 0x62, 0x63, 0x64};
+Food::Food(): x(5), y(5){};
+
+bool Food::isEaten(Gecko &gck){
+	return gck.headOccupiesTile(x, y);
+}
+
+void Food::reset(ColorMemLCD &display, const Gecko &gck)
+{
+	this->remove(display);
+	x = rand()%BOARD_WIDTH;
+	y = rand()%BOARD_HEIGHT;
+
+	while (gck.occupiesTile(x,y))
+	{
+		x = rand()%BOARD_WIDTH;
+		y = rand()%BOARD_HEIGHT;
+	}
+	this->draw(display);
+}
+
+void Food::draw(ColorMemLCD &display)
+{
+#if(MULTI_UPDATE)
+		display.window( x*STEPSIZE + BOARDERWIDTH/2 -1, 
+				(y+TOPEDGE)*STEPSIZE + BOARDERWIDTH/2, 
+				 STEPSIZE+1,
+				STEPSIZE );
+#endif	
+
+	for (int i=0;i<NFOODPIX;i++)
+	{
+		display.pixel(x*STEPSIZE + BOARDERWIDTH/2 + static_cast<uint8_t>( food_px_map[i] & 0xF), \
+				(y+TOPEDGE)*STEPSIZE + BOARDERWIDTH/2 + static_cast<uint8_t>( (food_px_map[i] >> 4) & 0xF), Black);
+	}
+
+#if(MULTI_UPDATE)
+	display.update();
+#endif
+
+}
+
+void Food::remove(ColorMemLCD &display)
+{
+#if(MULTI_UPDATE)
+	display.window( x*STEPSIZE + BOARDERWIDTH/2 -1, 
+				(y+TOPEDGE)*STEPSIZE + BOARDERWIDTH/2, 
+				 STEPSIZE+1,
+				STEPSIZE );
+#endif
+
+	for (int i=0;i<NFOODPIX;i++)
+		{
+			display.pixel(x*STEPSIZE + BOARDERWIDTH/2 +static_cast<uint8_t>(food_px_map[i] & 0xF), \
+					(y+TOPEDGE)*STEPSIZE + BOARDERWIDTH/2 + static_cast<uint8_t>((food_px_map[i] >> 4) & 0xF), BACKGROUND_COLOR);
+		}
+
+#if(MULTI_UPDATE)
+	display.update();
+#endif
+
+}
+
+