Old Sonic Clone

gistfile1.cpp

/* 
TO DO:
1. Check player position so you can start increasing index
2. Move ground array's index so it seems like it's moving
3. Increase the speed at which the array is moving around.
4. Link the array speed to player speed so it decelerates, eventually.
*/
#include <stdint.h>
#include <stdlib.h>
#include "gba.h"

int main()
{
	REG_DISPCNT = MODE4 | BG2_ENABLE;
	
	int ground[239][20];
	int player[20][16];
	const int line=239;

	int PLAYER_POSITION=0;
	int PLAYER_SPEED=0;
	int SPEED_MODIFIER=0;
	int index=0; //The point where to start drawing the ground array
	
	SetPaletteBG(1, RGB(31, 31, 31));
	SetPaletteBG(2, RGB(0, 0, 0));
	
	//Assign values inside the arrays//
	//Ground Array
	for (int row=0; row<=20; row++) 
	{
		for (int cell=0; cell<=line; cell++) 
		{
			if (cell %4==0)
			{
				ground[row][cell]=2;
			}
			else
			{
			ground [row][cell]=1;
			}
		}
	}
	//Player Array
	for (int row=0; row<=20; row++) //Drawing the main body
	{
		for (int cell=4; cell<=8; cell++)
		{
			player[row][cell]=1;
		}
	}
	for (int row=0; row<=4; row++) //Drawing the arms
	{
		for (int cell=0; cell<=10; cell++)
		{
			player[16-row][1+cell]=1;
		}
	}
	player[18][7]=2;
	
	while(1)
	{
		//Player Controls
		if ((REG_P1 & KEY_RIGHT) == 0)
		{
			PLAYER_POSITION++;
			PLAYER_SPEED++;                   
		}
		else if ((REG_P1 & KEY_LEFT) == 0)
		{
			PLAYER_POSITION--;
			PLAYER_SPEED--;
		}
		else
		{
			if (PLAYER_SPEED>0)
			{
				PLAYER_SPEED--;
			}
			else if (PLAYER_SPEED<0)
			{
				PLAYER_SPEED++;
			}
			else
			{
				PLAYER_SPEED=0;
			}
		}
		
		//draw pixels on GBA screen
		ClearScreen8(2);
		for (int row=0; row<=20; row++) 
		{
			for (int cell=0; cell<=line; cell++) 
			{
				PlotPixel8(cell, (row+139), ground[row][cell]);
			}
		}
		PLAYER_POSITION=PLAYER_POSITION+PLAYER_SPEED;
		for (int row=0; row<=20; row++)
		{
			for (int cell=0; cell<=12; cell++)
			{
				
				PlotPixel8(PLAYER_POSITION+cell, 137-row, player[row][cell]);
			}
		}
		
		if ((PLAYER_POSITION+1)==235)
		{
			PLAYER_POSITION=0;
		}
		if (PLAYER_POSITION<=0)
		{
			PLAYER_POSITION=0;
		}
		
		WaitVSync();
		FlipBuffers();
		
	}
}