X-Git-Url: http://4ch.mooo.com/gitweb/?a=blobdiff_plain;ds=sidebyside;f=16%2Fmodex16%2Fscroll.c;fp=16%2Fmodex16%2Fscroll.c;h=8a960eee044d8c229344308a6c4e8dea79acb4c4;hb=7b204788231612250d286ca317dd942b78da91b6;hp=0000000000000000000000000000000000000000;hpb=6c98a0c193de37421dabbe746a0b699020b5c8af;p=16.git

diff --git a/16/modex16/scroll.c b/16/modex16/scroll.c
new file mode 100755
index 00000000..8a960eee
--- /dev/null
+++ b/16/modex16/scroll.c
@@ -0,0 +1,363 @@
+#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 tile position on the viewable screen map
+	int ty; //???? appears to be the tile position on the viewable screen map
+	word dxThresh; //????
+	word dyThresh; //????
+} map_view_t;
+
+struct {
+	int tx; //player position on the viewable map
+	int ty; //player position on the viewable map
+} 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);
+
+#define TILEWH 16
+#define QUADWH (TILEWH/4)
+//#define SWAP(a, b) tmp=a; a=b; b=tmp;
+void main() {
+//	int show1=1;
+	int tx, ty;
+	int x, y;
+	//int ch=0x0;
+//	byte ch;
+	int q=0;
+	page_t screen;//,screen2;
+	map_t map;
+	map_view_t mv;//, mv2;
+	map_view_t *draw;//, *show, *tmp;
+	byte *ptr;
+
+	//default player position on the viewable map
+	player.tx = 10;
+	player.ty = 8;
+
+	setkb(1);
+	/* create the map */
+	map = allocMap(160,120); //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;
+	modexEnter();
+	screen = modexDefaultPage();
+	screen.width += (TILEWH*2);
+	mv.page = &screen;
+	mapGoTo(&mv, 16, 16);
+//	screen2=modexNextPage(mv.page);
+//	mv2.page = &screen2;
+//	mapGoTo(&mv2, 16, 16);
+//	modexShowPage(mv.page);
+
+	/* set up paging */
+//	show = &mv;
+//	draw = &mv2;
+	draw = &mv;
+
+	//TODO: set player position data here according to the viewable map screen thingy
+
+	while(!keyp(1)) {
+	//TODO: 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
+	if(keyp(77)){
+//		for(q=0; q<TILEWH; q++) {
+		mapScrollRight(draw, 1);
+//		modexShowPage(draw->page);
+//		mapScrollRight(draw, 1);
+//		SWAP(draw, show);
+//		}
+	}
+
+	if(keyp(75)){
+//		for(q=0; q<TILEWH; q++) {
+ 		mapScrollLeft(draw, 1);
+//		modexShowPage(draw->page);
+// 		mapScrollLeft(show, 1);
+//		SWAP(draw, show);
+//		}
+	}
+
+	if(keyp(80)){
+//		for(q=0; q<TILEWH; q++) {
+		mapScrollDown(draw, 1);
+//		modexShowPage(draw->page);
+//		mapScrollDown(show, 1);
+//		SWAP(draw, show);
+//		}
+	}
+
+	if(keyp(72)){
+//		for(q=0; q<TILEWH; q++) {
+		mapScrollUp(draw, 1);
+//		modexShowPage(draw->page);
+//		mapScrollUp(show, 1);
+//		SWAP(draw, show);
+//		}
+	}
+
+	//keyp(ch);
+	modexShowPage(draw->page);
+
+	}
+
+	modexLeave();
+	setkb(0);
+}
+
+
+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;
+	}
+}