From 5c4ae4bc62027a5f48689d40513dd2251e8a51a7 Mon Sep 17 00:00:00 2001
From: sparky4 <sparky4@cock.li>
Date: Mon, 24 Nov 2014 02:01:56 -0600
Subject: [PATCH] 	modified:   Project 16.bfproject 	modified:  
 scroll.c

---
 Project 16.bfproject |    8 +-
 scroll.c             | 1016 +++++++++++++++++++++---------------------
 2 files changed, 512 insertions(+), 512 deletions(-)

diff --git a/Project 16.bfproject b/Project 16.bfproject
index 4a4078c1..ca24de07 100644
--- a/Project 16.bfproject	
+++ b/Project 16.bfproject	
@@ -1,7 +1,7 @@
 c2e.convert_special: 0
 e2c.convert_num: 0
 openfiles: /dos/z/16/doc/project.txt:102:0:0:
-openfiles: /dos/z/16/scroll.c:3426:2959:1:
+openfiles: /dos/z/16/scroll.c:0:2959:1:
 openfiles: /dos/z/16/modex16.c:9475:0:0:
 openfiles: /dos/z/16/modex16.h:1512:344:0:
 openfiles: /dos/z/16/pcxtest.c:1339:442:0:
@@ -98,11 +98,11 @@ recent_files: file:///dos/z/16/doc/16.16
 recent_files: file:///dos/z/16/doc/16story.txt
 recent_files: file:///dos/z/16/scroll.c
 recent_files: file:///dos/z/16/doc/project.txt
-recent_files: file:///dos/z/16/lib/lib_head.h
-recent_files: file:///dos/z/16/dos_kb.c
-recent_files: file:///dos/z/16/dos_kb.h
 recent_files: file:///dos/z/16/modex16.h
 recent_files: file:///dos/z/16/pcxtest.c
+recent_files: file:///dos/z/16/dos_kb.c
+recent_files: file:///dos/z/16/dos_kb.h
+recent_files: file:///dos/z/16/lib/lib_head.h
 recent_files: file:///dos/z/16/modex16.c
 snr_replacetype: 0
 savedir: file:///dos/z/16
diff --git a/scroll.c b/scroll.c
index 4ce0eca0..da3369eb 100644
--- a/scroll.c
+++ b/scroll.c
@@ -1,513 +1,513 @@
-#include "modex16.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include "dos_kb.h"
-
-//word far *clock= (word far*) 0x046C; /* 18.2hz clock */
-
-typedef struct {
-	bitmap_t *data;
-	word tileHeight;
-	word tileWidth;
-	unsigned int rows;
-	unsigned int cols;
-	//unsigned int tilex,tiley; // tile position on the map
-} tiles_t;
-
-
-typedef struct {
-	byte	*data;
-	tiles_t *tiles;
-	int width;
-	int height;
-} map_t;
-
-
-typedef struct {
-	map_t *map;
-	page_t *page;
-	int tx; //appears to be the top left tile position on the viewable screen map
-	int ty; //appears to be the top left tile position on the viewable screen map
-	word dxThresh; //????
-	word dyThresh; //????
-} map_view_t;
-
-struct {
-	int x; //player exact position on the viewable map
-	int y; //player exact position on the viewable map
-	int tx; //player tile position on the viewable map
-	int ty; //player tile position on the viewable map
-	int hp; //hitpoints of the player
-} player;
-
-
-map_t allocMap(int w, int h);
-void initMap(map_t *map);
-void mapScrollRight(map_view_t *mv, byte offset);
-void mapScrollLeft(map_view_t *mv, byte offest);
-void mapScrollUp(map_view_t *mv, byte offset);
-void mapScrollDown(map_view_t *mv, byte offset);
-void mapGoTo(map_view_t *mv, int tx, int ty);
-void mapDrawTile(tiles_t *t, word i, page_t *page, word x, word y);
-void mapDrawRow(map_view_t *mv, int tx, int ty, word y);
-void mapDrawCol(map_view_t *mv, int tx, int ty, word x);
-void animatePlayer(map_view_t *src, map_view_t *dest, short d1, short d2, int x, int y, int ls, bitmap_t *bmp);
-
-#define TILEWH 16
-#define QUADWH (TILEWH/4)
-#define SPEED 4
-
-//place holder definitions
-#define MAPX 40
-#define MAPY 30
-#define SWAP(a, b) tmp=a; a=b; b=tmp;
-void main() {
-	bitmap_t ptmp; // player sprite
-	int q=1;
-	page_t screen, screen2;
-	map_t map;
-	map_view_t mv, mv2;
-	map_view_t *bg, *spri, *tmp;
-	byte *ptr;
-
-	setkb(1);
-	/* create the map */
-	map = allocMap(MAPX,MAPY); //20x15 is the resolution of the screen you can make maps smaller than 20x15 but the null space needs to be drawn properly
-	initMap(&map);
-	mv.map = &map;
-	mv2.map = &map;
-
-	/* draw the tiles */
-	ptr = map.data;
-	ptmp = bitmapLoadPcx("ptmp.pcx"); // load sprite
-	modexEnter();
-	modexPalUpdate(ptmp.palette);
-	screen = modexDefaultPage();
-	screen.width += (TILEWH*2);
-	screen.height += (TILEWH*2);
-	mv.page = &screen;
-	screen2 = modexNextPage(mv.page);
-	mv2.page = &screen2;
-
-	/* set up paging */
-	bg = &mv;
-	spri = &mv2;
-
-//TODO: LOAD map data and position the map in the middle of the screen if smaller then screen
-	mapGoTo(bg, 0, 0);
-	mapGoTo(spri, 0, 0);
-
-	//TODO: put player in starting position of spot
-	//default player position on the viewable map
-	player.tx = bg->tx + 10;
-	player.ty = bg->ty + 8;
-	player.x = player.tx*TILEWH;
-	player.y = player.ty*TILEWH;
-	modexDrawSpriteRegion(spri->page, player.x-4, player.y-TILEWH, 24, 64, 24, 32, &ptmp);
-	modexCopyPageRegion(bg->page, spri->page, player.x-4, player.y-TILEWH, player.x-4, player.y-TILEWH, 24, 32);
-	modexShowPage(bg->page);
-	while(!keyp(1))
-	{
-	//top left corner & bottem right corner of map veiw be set as map edge trigger since maps are actually square
-	//to stop scrolling and have the player position data move to the edge of the screen with respect to the direction
-	//when player.tx or player.ty == 0 or player.tx == 20 or player.ty == 15 then stop because that is edge of map and you do not want to walk of the map
-	
-	//TODO: render the player properly with animation and sprite sheet
-	//TODO: fexible speeds
-	if(keyp(77) && !keyp(75))
-	{
-		if(bg->tx >= 0 && bg->tx+20 < MAPX && player.tx == bg->tx + 10)
-		{
-			for(q=1; q<=(TILEWH/SPEED); q++)
-			{
-				animatePlayer(bg, spri, 1, 1, player.x, player.y, q, &ptmp);
-				mapScrollRight(bg, SPEED);
-				mapScrollRight(spri, SPEED);
-				modexShowPage(spri->page);
-			}
-			player.tx++;
-		}
-		else if(player.tx < MAPX)
-		{
-			for(q=1; q<=(TILEWH/SPEED); q++)
-			{
-				player.x+=SPEED;
-				animatePlayer(bg, spri, 1, 0, player.x, player.y, q, &ptmp);
-				modexShowPage(spri->page);
-			}
-			player.tx++;
-		}
-		else
-		{
-			modexCopyPageRegion(spri->page, bg->page, player.x-4, player.y-TILEWH, player.x-4, player.y-TILEWH, 24, 32);
-			modexDrawSpriteRegion(spri->page, player.x-4, player.y-TILEWH, 24, 32, 24, 32, &ptmp);
-			modexShowPage(spri->page);
-		}
-	}
-
-	if(keyp(75) && !keyp(77))
-	{
-		if(bg->tx > 0 && bg->tx+20 <= MAPX && player.tx == bg->tx + 10)
-		{
-			for(q=1; q<=(TILEWH/SPEED); q++)
-			{
-				
-				animatePlayer(bg, spri, 3, 1, player.x, player.y, q, &ptmp);
-				mapScrollLeft(bg, SPEED);
-				mapScrollLeft(spri, SPEED);
-				modexShowPage(spri->page);
-			}
-			player.tx--;
-		}
-		else if(player.tx > 1)
-		{
-			for(q=1; q<=(TILEWH/SPEED); q++)
-			{
-				player.x-=SPEED;
-				animatePlayer(bg, spri, 3, 0, player.x, player.y, q, &ptmp);
-				modexShowPage(spri->page);
-			}
-			player.tx--;
-		}
-		else
-		{
-			modexCopyPageRegion(spri->page, bg->page, player.x-4, player.y-TILEWH, player.x-4, player.y-TILEWH, 24, 32);
-			modexDrawSpriteRegion(spri->page, player.x-4, player.y-TILEWH, 24, 96, 24, 32, &ptmp);
-			modexShowPage(spri->page);
-		}
-	}
-
-	if(keyp(80) && !keyp(72))
-	{
-		if(bg->ty >= 0 && bg->ty+15 < MAPY && player.ty == bg->ty + 8)
-		{
-			for(q=1; q<=(TILEWH/SPEED); q++)
-			{
-				animatePlayer(bg, spri, 2, 1, player.x, player.y, q, &ptmp);
-				mapScrollDown(bg, SPEED);
-				mapScrollDown(spri, SPEED);
-				modexShowPage(spri->page);
-			}
-			player.ty++;
-		}
-		else if(player.ty < MAPY)
-		{
-			for(q=1; q<=(TILEWH/SPEED); q++)
-			{
-				player.y+=SPEED;
-				animatePlayer(bg, spri, 2, 0, player.x, player.y, q, &ptmp);
-				modexShowPage(spri->page);
-			}
-			player.ty++;
-		}
-		else
-		{
-			modexCopyPageRegion(spri->page, bg->page, player.x-4, player.y-TILEWH, player.x-4, player.y-TILEWH, 24, 32);
-			modexDrawSpriteRegion(spri->page, player.x-4, player.y-TILEWH, 24, 64, 24, 32, &ptmp);
-			modexShowPage(spri->page);
-		}
-	}
-
-	if(keyp(72) && !keyp(80))
-	{
-		if(bg->ty > 0 && bg->ty+15 <= MAPY && player.ty == bg->ty + 8)
-		{
-			for(q=1; q<=(TILEWH/SPEED); q++)
-			{
-				animatePlayer(bg, spri, 0, 1, player.x, player.y, q, &ptmp);
-				mapScrollUp(bg, SPEED);
-				mapScrollUp(spri, SPEED);
-				modexShowPage(spri->page);
-			}
-			player.ty--;
-		}
-		else if(player.ty > 1)
-		{
-			for(q=1; q<=(TILEWH/SPEED); q++)
-			{
-				player.y-=SPEED;
-				animatePlayer(bg, spri, 0, 0, player.x, player.y, q, &ptmp);
-				modexShowPage(spri->page);
-			}
-			player.ty--;
-		}
-		else
-		{
-			modexCopyPageRegion(spri->page, bg->page, player.x-4, player.y-TILEWH, player.x-4, player.y-TILEWH, 24, 32);
-			modexDrawSpriteRegion(spri->page, player.x-4, player.y-TILEWH, 24, 0, 24, 32, &ptmp);
-			modexShowPage(spri->page);
-		}
-	}
-
-	}
-
-	modexLeave();
-	setkb(0);
-	printf("Project 16 scroll.exe\n");
-	printf("tx: %d\n", bg->tx);
-	printf("ty: %d\n", bg->ty);
-	printf("player.x: %d\n", player.x);
-	printf("player.y: %d\n", player.y);
-	printf("player.tx: %d\n", player.tx);
-	printf("player.ty: %d\n", player.ty);
-}
-
-
-map_t
-allocMap(int w, int h) {
-	map_t result;
-
-	result.width =w;
-	result.height=h;
-	result.data = malloc(sizeof(byte) * w * h);
-
-	return result;
-}
-
-
-void
-initMap(map_t *map) {
-	/* just a place holder to fill out an alternating pattern */
-	int x, y;
-	int i;
-	int tile = 1;
-	map->tiles = malloc(sizeof(tiles_t));
-
-	/* create the tile set */
-	map->tiles->data = malloc(sizeof(bitmap_t));
-	map->tiles->data->width = (TILEWH*2);
-	map->tiles->data->height= TILEWH;
-	map->tiles->data->data = malloc((TILEWH*2)*TILEWH);
-	map->tiles->tileHeight = TILEWH;
-	map->tiles->tileWidth =TILEWH;
-	map->tiles->rows = 1;
-	map->tiles->cols = 2;
-
-	i=0;
-	for(y=0; y<TILEWH; y++) {
-	for(x=0; x<(TILEWH*2); x++) {
-		if(x<TILEWH)
-		  map->tiles->data->data[i] = 0x24;
-		else
-		  map->tiles->data->data[i] = 0x34;
-		i++;
-	}
-	}
-
-	i=0;
-	for(y=0; y<map->height; y++) {
-		for(x=0; x<map->width; x++) {
-			map->data[i] = tile;
-			tile = tile ? 0 : 1;
-			i++;
-		}
-		tile = tile ? 0 : 1;
-	}
-}
-
-
-void
-mapScrollRight(map_view_t *mv, byte offset) {
-	word x, y;  /* coordinate for drawing */
-
-	/* increment the pixel position and update the page */
-	mv->page->dx += offset;
-
-	/* check to see if this changes the tile */
-	if(mv->page->dx >= mv->dxThresh ) {
-	/* go forward one tile */
-	mv->tx++;
-	/* Snap the origin forward */
-	mv->page->data += 4;
-	mv->page->dx = mv->map->tiles->tileWidth;
-
-
-	/* draw the next column */
-	x= SCREEN_WIDTH + mv->map->tiles->tileWidth;
-		mapDrawCol(mv, mv->tx + 20 , mv->ty-1, x);
-	}
-}
-
-
-void
-mapScrollLeft(map_view_t *mv, byte offset) {
-	word x, y;  /* coordinate for drawing */
-
-	/* increment the pixel position and update the page */
-	mv->page->dx -= offset;
-
-	/* check to see if this changes the tile */
-	if(mv->page->dx == 0) {
-	/* go backward one tile */
-	mv->tx--;
-		
-	/* Snap the origin backward */
-	mv->page->data -= 4;
-	mv->page->dx = mv->map->tiles->tileWidth;
-
-	/* draw the next column */
-		mapDrawCol(mv, mv->tx-1, mv->ty-1, 0);
-	}
-}
-
-
-void
-mapScrollUp(map_view_t *mv, byte offset) {
-	word x, y;  /* coordinate for drawing */
-
-	/* increment the pixel position and update the page */
-	mv->page->dy -= offset;
-
-	/* check to see if this changes the tile */
-	if(mv->page->dy == 0 ) {
-	/* go down one tile */
-	mv->ty--;
-	/* Snap the origin downward */
-	mv->page->data -= mv->page->width*4;
-	mv->page->dy = mv->map->tiles->tileHeight;
-
-
-	/* draw the next row */
-	y= 0;
-		mapDrawRow(mv, mv->tx-1 , mv->ty-1, y);
-	}
-}
-
-
-void
-mapScrollDown(map_view_t *mv, byte offset) {
-	word x, y;  /* coordinate for drawing */
-
-	/* increment the pixel position and update the page */
-	mv->page->dy += offset;
-
-	/* check to see if this changes the tile */
-	if(mv->page->dy >= mv->dyThresh ) {
-	/* go down one tile */
-	mv->ty++;
-	/* Snap the origin downward */
-	mv->page->data += mv->page->width*4;
-	mv->page->dy = mv->map->tiles->tileHeight;
-
-
-	/* draw the next row */
-	y= SCREEN_HEIGHT + mv->map->tiles->tileHeight;
-		mapDrawRow(mv, mv->tx-1 , mv->ty+15, y);
-	}
-
-}
-
-
-void
-mapGoTo(map_view_t *mv, int tx, int ty) {
-	int px, py;
-	unsigned int i;
-
-	/* set up the coordinates */
-	mv->tx = tx;
-	mv->ty = ty;
-	mv->page->dx = mv->map->tiles->tileWidth;
-	mv->page->dy = mv->map->tiles->tileHeight;
-
-	/* set up the thresholds */
-	mv->dxThresh = mv->map->tiles->tileWidth * 2;
-	mv->dyThresh = mv->map->tiles->tileHeight * 2;
-
-	/* draw the tiles */
-	modexClearRegion(mv->page, 0, 0, mv->page->width, mv->page->height, 0);
-	py=0;
-	i=mv->ty * mv->map->width + mv->tx;
-	for(ty=mv->ty-1; py < SCREEN_HEIGHT+mv->dyThresh && ty < mv->map->height; ty++, py+=mv->map->tiles->tileHeight) {
-		mapDrawRow(mv, tx-1, ty, py);
-	i+=mv->map->width - tx;
-	}
-}
-
-
-void
-mapDrawTile(tiles_t *t, word i, page_t *page, word x, word y) {
-	word rx;
-	word ry;
-	rx = (i % t->cols) * t->tileWidth;
-	ry = (i / t->cols) * t->tileHeight;
-	modexDrawBmpRegion(page, x, y, rx, ry, t->tileWidth, t->tileHeight, t->data);
-}
-
-
-void 
-mapDrawRow(map_view_t *mv, int tx, int ty, word y) {
-	word x;
-	int i;
-
-	/* the position within the map array */
-	i=ty * mv->map->width + tx;
-	for(x=0; x<SCREEN_WIDTH+mv->dxThresh && tx < mv->map->width; x+=mv->map->tiles->tileWidth, tx++) {
-	if(i>=0) {
-		/* we are in the map, so copy! */
-		mapDrawTile(mv->map->tiles, mv->map->data[i], mv->page, x, y);
-	}
-	i++; /* next! */
-	}
-}
-
-
-void 
-mapDrawCol(map_view_t *mv, int tx, int ty, word x) {
-	int y;
-	int i;
-
-	/* location in the map array */
-	i=ty * mv->map->width + tx;
-
-	/* We'll copy all of the columns in the screen, 
-	   i + 1 row above and one below */
-	for(y=0; y<SCREEN_HEIGHT+mv->dyThresh && ty < mv->map->height; y+=mv->map->tiles->tileHeight, ty++) {
-	if(i>=0) {
-		/* we are in the map, so copy away! */
-		mapDrawTile(mv->map->tiles, mv->map->data[i], mv->page, x, y);
-	}
-	i += mv->map->width;
-	}
-}
-
-void
-animatePlayer(map_view_t *src, map_view_t *dest, short d1, short d2, int x, int y, int ls, bitmap_t *bmp)
+#include "modex16.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include "dos_kb.h"
+
+//word far *clock= (word far*) 0x046C; /* 18.2hz clock */
+
+typedef struct {
+	bitmap_t *data;
+	word tileHeight;
+	word tileWidth;
+	unsigned int rows;
+	unsigned int cols;
+	//unsigned int tilex,tiley; // tile position on the map
+} tiles_t;
+
+
+typedef struct {
+	byte	*data;
+	tiles_t *tiles;
+	int width;
+	int height;
+} map_t;
+
+
+typedef struct {
+	map_t *map;
+	page_t *page;
+	int tx; //appears to be the top left tile position on the viewable screen map
+	int ty; //appears to be the top left tile position on the viewable screen map
+	word dxThresh; //????
+	word dyThresh; //????
+} map_view_t;
+
+struct {
+	int x; //player exact position on the viewable map
+	int y; //player exact position on the viewable map
+	int tx; //player tile position on the viewable map
+	int ty; //player tile position on the viewable map
+	int hp; //hitpoints of the player
+} player;
+
+
+map_t allocMap(int w, int h);
+void initMap(map_t *map);
+void mapScrollRight(map_view_t *mv, byte offset);
+void mapScrollLeft(map_view_t *mv, byte offest);
+void mapScrollUp(map_view_t *mv, byte offset);
+void mapScrollDown(map_view_t *mv, byte offset);
+void mapGoTo(map_view_t *mv, int tx, int ty);
+void mapDrawTile(tiles_t *t, word i, page_t *page, word x, word y);
+void mapDrawRow(map_view_t *mv, int tx, int ty, word y);
+void mapDrawCol(map_view_t *mv, int tx, int ty, word x);
+void animatePlayer(map_view_t *src, map_view_t *dest, short d1, short d2, int x, int y, int ls, bitmap_t *bmp);
+
+#define TILEWH 16
+#define QUADWH (TILEWH/4)
+#define SPEED 4
+
+//place holder definitions
+#define MAPX 40
+#define MAPY 30
+#define SWAP(a, b) tmp=a; a=b; b=tmp;
+void main() {
+	bitmap_t ptmp; // player sprite
+	int q=1;
+	page_t screen, screen2;
+	map_t map;
+	map_view_t mv, mv2;
+	map_view_t *bg, *spri, *tmp;
+	byte *ptr;
+
+	setkb(1);
+	/* create the map */
+	map = allocMap(MAPX,MAPY); //20x15 is the resolution of the screen you can make maps smaller than 20x15 but the null space needs to be drawn properly
+	initMap(&map);
+	mv.map = &map;
+	mv2.map = &map;
+
+	/* draw the tiles */
+	ptr = map.data;
+	ptmp = bitmapLoadPcx("ptmp.pcx"); // load sprite
+	modexEnter();
+	modexPalUpdate(ptmp.palette);
+	screen = modexDefaultPage();
+	screen.width += (TILEWH*2);
+	screen.height += (TILEWH*2);
+	mv.page = &screen;
+	screen2 = modexNextPage(mv.page);
+	mv2.page = &screen2;
+
+	/* set up paging */
+	bg = &mv;
+	spri = &mv2;
+
+//TODO: LOAD map data and position the map in the middle of the screen if smaller then screen
+	mapGoTo(bg, 0, 0);
+	mapGoTo(spri, 0, 0);
+
+	//TODO: put player in starting position of spot
+	//default player position on the viewable map
+	player.tx = bg->tx + 10;
+	player.ty = bg->ty + 8;
+	player.x = player.tx*TILEWH;
+	player.y = player.ty*TILEWH;
+	modexDrawSpriteRegion(spri->page, player.x-4, player.y-TILEWH, 24, 64, 24, 32, &ptmp);
+	modexCopyPageRegion(bg->page, spri->page, player.x-4, player.y-TILEWH, player.x-4, player.y-TILEWH, 24, 32);
+	modexShowPage(bg->page);
+	while(!keyp(1))
+	{
+	//top left corner & bottem right corner of map veiw be set as map edge trigger since maps are actually square
+	//to stop scrolling and have the player position data move to the edge of the screen with respect to the direction
+	//when player.tx or player.ty == 0 or player.tx == 20 or player.ty == 15 then stop because that is edge of map and you do not want to walk of the map
+	
+	//TODO: render the player properly with animation and sprite sheet
+	//TODO: fexible speeds
+	if(keyp(77) && !keyp(75))
+	{
+		if(bg->tx >= 0 && bg->tx+20 < MAPX && player.tx == bg->tx + 10)
+		{
+			for(q=1; q<=(TILEWH/SPEED); q++)
+			{
+				animatePlayer(bg, spri, 1, 1, player.x, player.y, q, &ptmp);
+				mapScrollRight(bg, SPEED);
+				mapScrollRight(spri, SPEED);
+				modexShowPage(spri->page);
+			}
+			player.tx++;
+		}
+		else if(player.tx < MAPX)
+		{
+			for(q=1; q<=(TILEWH/SPEED); q++)
+			{
+				player.x+=SPEED;
+				animatePlayer(bg, spri, 1, 0, player.x, player.y, q, &ptmp);
+				modexShowPage(spri->page);
+			}
+			player.tx++;
+		}
+		else
+		{
+			modexCopyPageRegion(spri->page, bg->page, player.x-4, player.y-TILEWH, player.x-4, player.y-TILEWH, 24, 32);
+			modexDrawSpriteRegion(spri->page, player.x-4, player.y-TILEWH, 24, 32, 24, 32, &ptmp);
+			modexShowPage(spri->page);
+		}
+	}
+
+	if(keyp(75) && !keyp(77))
+	{
+		if(bg->tx > 0 && bg->tx+20 <= MAPX && player.tx == bg->tx + 10)
+		{
+			for(q=1; q<=(TILEWH/SPEED); q++)
+			{
+				
+				animatePlayer(bg, spri, 3, 1, player.x, player.y, q, &ptmp);
+				mapScrollLeft(bg, SPEED);
+				mapScrollLeft(spri, SPEED);
+				modexShowPage(spri->page);
+			}
+			player.tx--;
+		}
+		else if(player.tx > 1)
+		{
+			for(q=1; q<=(TILEWH/SPEED); q++)
+			{
+				player.x-=SPEED;
+				animatePlayer(bg, spri, 3, 0, player.x, player.y, q, &ptmp);
+				modexShowPage(spri->page);
+			}
+			player.tx--;
+		}
+		else
+		{
+			modexCopyPageRegion(spri->page, bg->page, player.x-4, player.y-TILEWH, player.x-4, player.y-TILEWH, 24, 32);
+			modexDrawSpriteRegion(spri->page, player.x-4, player.y-TILEWH, 24, 96, 24, 32, &ptmp);
+			modexShowPage(spri->page);
+		}
+	}
+
+	if(keyp(80) && !keyp(72))
+	{
+		if(bg->ty >= 0 && bg->ty+15 < MAPY && player.ty == bg->ty + 8)
+		{
+			for(q=1; q<=(TILEWH/SPEED); q++)
+			{
+				animatePlayer(bg, spri, 2, 1, player.x, player.y, q, &ptmp);
+				mapScrollDown(bg, SPEED);
+				mapScrollDown(spri, SPEED);
+				modexShowPage(spri->page);
+			}
+			player.ty++;
+		}
+		else if(player.ty < MAPY)
+		{
+			for(q=1; q<=(TILEWH/SPEED); q++)
+			{
+				player.y+=SPEED;
+				animatePlayer(bg, spri, 2, 0, player.x, player.y, q, &ptmp);
+				modexShowPage(spri->page);
+			}
+			player.ty++;
+		}
+		else
+		{
+			modexCopyPageRegion(spri->page, bg->page, player.x-4, player.y-TILEWH, player.x-4, player.y-TILEWH, 24, 32);
+			modexDrawSpriteRegion(spri->page, player.x-4, player.y-TILEWH, 24, 64, 24, 32, &ptmp);
+			modexShowPage(spri->page);
+		}
+	}
+
+	if(keyp(72) && !keyp(80))
+	{
+		if(bg->ty > 0 && bg->ty+15 <= MAPY && player.ty == bg->ty + 8)
+		{
+			for(q=1; q<=(TILEWH/SPEED); q++)
+			{
+				animatePlayer(bg, spri, 0, 1, player.x, player.y, q, &ptmp);
+				mapScrollUp(bg, SPEED);
+				mapScrollUp(spri, SPEED);
+				modexShowPage(spri->page);
+			}
+			player.ty--;
+		}
+		else if(player.ty > 1)
+		{
+			for(q=1; q<=(TILEWH/SPEED); q++)
+			{
+				player.y-=SPEED;
+				animatePlayer(bg, spri, 0, 0, player.x, player.y, q, &ptmp);
+				modexShowPage(spri->page);
+			}
+			player.ty--;
+		}
+		else
+		{
+			modexCopyPageRegion(spri->page, bg->page, player.x-4, player.y-TILEWH, player.x-4, player.y-TILEWH, 24, 32);
+			modexDrawSpriteRegion(spri->page, player.x-4, player.y-TILEWH, 24, 0, 24, 32, &ptmp);
+			modexShowPage(spri->page);
+		}
+	}
+
+	}
+
+	modexLeave();
+	setkb(0);
+	printf("Project 16 scroll.exe\n");
+	printf("tx: %d\n", bg->tx);
+	printf("ty: %d\n", bg->ty);
+	printf("player.x: %d\n", player.x);
+	printf("player.y: %d\n", player.y);
+	printf("player.tx: %d\n", player.tx);
+	printf("player.ty: %d\n", player.ty);
+}
+
+
+map_t
+allocMap(int w, int h) {
+	map_t result;
+
+	result.width =w;
+	result.height=h;
+	result.data = malloc(sizeof(byte) * w * h);
+
+	return result;
+}
+
+
+void
+initMap(map_t *map) {
+	/* just a place holder to fill out an alternating pattern */
+	int x, y;
+	int i;
+	int tile = 1;
+	map->tiles = malloc(sizeof(tiles_t));
+
+	/* create the tile set */
+	map->tiles->data = malloc(sizeof(bitmap_t));
+	map->tiles->data->width = (TILEWH*2);
+	map->tiles->data->height= TILEWH;
+	map->tiles->data->data = malloc((TILEWH*2)*TILEWH);
+	map->tiles->tileHeight = TILEWH;
+	map->tiles->tileWidth =TILEWH;
+	map->tiles->rows = 1;
+	map->tiles->cols = 2;
+
+	i=0;
+	for(y=0; y<TILEWH; y++) {
+	for(x=0; x<(TILEWH*2); x++) {
+		if(x<TILEWH)
+		  map->tiles->data->data[i] = 0x24;
+		else
+		  map->tiles->data->data[i] = 0x34;
+		i++;
+	}
+	}
+
+	i=0;
+	for(y=0; y<map->height; y++) {
+		for(x=0; x<map->width; x++) {
+			map->data[i] = tile;
+			tile = tile ? 0 : 1;
+			i++;
+		}
+		tile = tile ? 0 : 1;
+	}
+}
+
+
+void
+mapScrollRight(map_view_t *mv, byte offset) {
+	word x, y;  /* coordinate for drawing */
+
+	/* increment the pixel position and update the page */
+	mv->page->dx += offset;
+
+	/* check to see if this changes the tile */
+	if(mv->page->dx >= mv->dxThresh ) {
+	/* go forward one tile */
+	mv->tx++;
+	/* Snap the origin forward */
+	mv->page->data += 4;
+	mv->page->dx = mv->map->tiles->tileWidth;
+
+
+	/* draw the next column */
+	x= SCREEN_WIDTH + mv->map->tiles->tileWidth;
+		mapDrawCol(mv, mv->tx + 20 , mv->ty-1, x);
+	}
+}
+
+
+void
+mapScrollLeft(map_view_t *mv, byte offset) {
+	word x, y;  /* coordinate for drawing */
+
+	/* increment the pixel position and update the page */
+	mv->page->dx -= offset;
+
+	/* check to see if this changes the tile */
+	if(mv->page->dx == 0) {
+	/* go backward one tile */
+	mv->tx--;
+		
+	/* Snap the origin backward */
+	mv->page->data -= 4;
+	mv->page->dx = mv->map->tiles->tileWidth;
+
+	/* draw the next column */
+		mapDrawCol(mv, mv->tx-1, mv->ty-1, 0);
+	}
+}
+
+
+void
+mapScrollUp(map_view_t *mv, byte offset) {
+	word x, y;  /* coordinate for drawing */
+
+	/* increment the pixel position and update the page */
+	mv->page->dy -= offset;
+
+	/* check to see if this changes the tile */
+	if(mv->page->dy == 0 ) {
+	/* go down one tile */
+	mv->ty--;
+	/* Snap the origin downward */
+	mv->page->data -= mv->page->width*4;
+	mv->page->dy = mv->map->tiles->tileHeight;
+
+
+	/* draw the next row */
+	y= 0;
+		mapDrawRow(mv, mv->tx-1 , mv->ty-1, y);
+	}
+}
+
+
+void
+mapScrollDown(map_view_t *mv, byte offset) {
+	word x, y;  /* coordinate for drawing */
+
+	/* increment the pixel position and update the page */
+	mv->page->dy += offset;
+
+	/* check to see if this changes the tile */
+	if(mv->page->dy >= mv->dyThresh ) {
+	/* go down one tile */
+	mv->ty++;
+	/* Snap the origin downward */
+	mv->page->data += mv->page->width*4;
+	mv->page->dy = mv->map->tiles->tileHeight;
+
+
+	/* draw the next row */
+	y= SCREEN_HEIGHT + mv->map->tiles->tileHeight;
+		mapDrawRow(mv, mv->tx-1 , mv->ty+15, y);
+	}
+
+}
+
+
+void
+mapGoTo(map_view_t *mv, int tx, int ty) {
+	int px, py;
+	unsigned int i;
+
+	/* set up the coordinates */
+	mv->tx = tx;
+	mv->ty = ty;
+	mv->page->dx = mv->map->tiles->tileWidth;
+	mv->page->dy = mv->map->tiles->tileHeight;
+
+	/* set up the thresholds */
+	mv->dxThresh = mv->map->tiles->tileWidth * 2;
+	mv->dyThresh = mv->map->tiles->tileHeight * 2;
+
+	/* draw the tiles */
+	modexClearRegion(mv->page, 0, 0, mv->page->width, mv->page->height, 0);
+	py=0;
+	i=mv->ty * mv->map->width + mv->tx;
+	for(ty=mv->ty-1; py < SCREEN_HEIGHT+mv->dyThresh && ty < mv->map->height; ty++, py+=mv->map->tiles->tileHeight) {
+		mapDrawRow(mv, tx-1, ty, py);
+	i+=mv->map->width - tx;
+	}
+}
+
+
+void
+mapDrawTile(tiles_t *t, word i, page_t *page, word x, word y) {
+	word rx;
+	word ry;
+	rx = (i % t->cols) * t->tileWidth;
+	ry = (i / t->cols) * t->tileHeight;
+	modexDrawBmpRegion(page, x, y, rx, ry, t->tileWidth, t->tileHeight, t->data);
+}
+
+
+void 
+mapDrawRow(map_view_t *mv, int tx, int ty, word y) {
+	word x;
+	int i;
+
+	/* the position within the map array */
+	i=ty * mv->map->width + tx;
+	for(x=0; x<SCREEN_WIDTH+mv->dxThresh && tx < mv->map->width; x+=mv->map->tiles->tileWidth, tx++) {
+	if(i>=0) {
+		/* we are in the map, so copy! */
+		mapDrawTile(mv->map->tiles, mv->map->data[i], mv->page, x, y);
+	}
+	i++; /* next! */
+	}
+}
+
+
+void 
+mapDrawCol(map_view_t *mv, int tx, int ty, word x) {
+	int y;
+	int i;
+
+	/* location in the map array */
+	i=ty * mv->map->width + tx;
+
+	/* We'll copy all of the columns in the screen, 
+	   i + 1 row above and one below */
+	for(y=0; y<SCREEN_HEIGHT+mv->dyThresh && ty < mv->map->height; y+=mv->map->tiles->tileHeight, ty++) {
+	if(i>=0) {
+		/* we are in the map, so copy away! */
+		mapDrawTile(mv->map->tiles, mv->map->data[i], mv->page, x, y);
+	}
+	i += mv->map->width;
+	}
+}
+
+void
+animatePlayer(map_view_t *src, map_view_t *dest, short d1, short d2, int x, int y, int ls, bitmap_t *bmp)
 {
-	short dire=32*d1;
-	short qq;
-	short lo = ((TILEWH / SPEED) / 3);
+	short dire=32*d1;
+	short qq;
+	short lo = ((TILEWH / SPEED) / 3);
 	short loo = (ls + lo);
-
-	if(d2==0) qq = 0;
-	else qq = ((ls)*SPEED);
-	switch (d1)
-	{
-		case 0:
-			//up
-			x=x-4;
-			y=y-qq-TILEWH;
-		break;
-		case 1:
-			// right
-			x=x+qq-4;
-			y=y-TILEWH;
-		break;
-		case 2:
-			//down
-			x=x-4;
-			y=y+qq-TILEWH;
-		break;
-		case 3:
-			//left
-			x=x-qq-4;
-			y=y-TILEWH;
-		break;
+
+	if(d2==0) qq = 0;
+	else qq = ((ls)*SPEED);
+	switch (d1)
+	{
+		case 0:
+			//up
+			x=x-4;
+			y=y-qq-TILEWH;
+		break;
+		case 1:
+			// right
+			x=x+qq-4;
+			y=y-TILEWH;
+		break;
+		case 2:
+			//down
+			x=x-4;
+			y=y+qq-TILEWH;
+		break;
+		case 3:
+			//left
+			x=x-qq-4;
+			y=y-TILEWH;
+		break;
 	}
 	//TODO: make flexible animation thingy
-	modexCopyPageRegion(dest->page, src->page, x-4, y-4, x-4, y-4, 28, 40);
-	if(2>ls && ls>=1) { modexDrawSpriteRegion(dest->page, x, y, 48, dire, 24, 32, bmp); }else
-	if(3>ls && ls>=2) { modexDrawSpriteRegion(dest->page, x, y, 24, dire, 24, 32, bmp); }else
-	if(4>ls && ls>=3) { modexDrawSpriteRegion(dest->page, x, y, 0, dire, 24, 32, bmp); }else
+	modexCopyPageRegion(dest->page, src->page, x-4, y-4, x-4, y-4, 28, 40);
+	if(2>ls && ls>=1) { modexDrawSpriteRegion(dest->page, x, y, 48, dire, 24, 32, bmp); }else
+	if(3>ls && ls>=2) { modexDrawSpriteRegion(dest->page, x, y, 24, dire, 24, 32, bmp); }else
+	if(4>ls && ls>=3) { modexDrawSpriteRegion(dest->page, x, y, 0, dire, 24, 32, bmp); }else
 	if(5>ls && ls>=4) { modexDrawSpriteRegion(dest->page, x, y, 24, dire, 24, 32, bmp); }
-	modexWaitBorder();
-}
+	modexWaitBorder();
+}
-- 
2.39.5