From 0af34abfbdfa70d51cf117fbb48e02915ab05ae0 Mon Sep 17 00:00:00 2001
From: sparky4 <sparky4@cock.li>
Date: Wed, 15 Feb 2017 20:11:11 -0600
Subject: [PATCH] ==== INITIAL LAYER MAP STUFF DONE, added mapdraw layer ontop
 of bg, going to implement actors [objects and shit] into the code next, then
 make support for tilesets, checker should work now!! and made map edge
 detection a function!====

---
 src/lib/scroll16.c | 28 ++++++++++++++++------------
 src/lib/scroll16.h | 45 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 61 insertions(+), 12 deletions(-)

diff --git a/src/lib/scroll16.c b/src/lib/scroll16.c
index a78c9982..12d8991c 100755
--- a/src/lib/scroll16.c
+++ b/src/lib/scroll16.c
@@ -36,7 +36,7 @@ void ZC_walk(map_view_t *pip, player_t *player, word pn)
 		break;
 		//right movement
 		case 3:
-			if(pip[0].tx >= 0 && pip[0].tx+pip[0].page->ti.tw < pip[0].map->width && player[pn].enti.tx == pip[0].tx+pip[0].page->ti.tilemidposscreenx &&
+			if(ZC_mapEdgeChk(pip, player[pn].enti.d, 0) && player[pn].enti.tx == pip[0].tx+pip[0].page->ti.tilemidposscreenx &&
 			!(pip[0].map->layerdata[0].data[(player[pn].enti.tx)+(pip[0].map->width*(player[pn].enti.ty-1))] == 0))//!(player[pn].enti.tx+1 == TRIGGX && player[pn].enti.ty == TRIGGY))	//collision detection!
 			{
 				player[pn].walktype=2;
@@ -69,7 +69,7 @@ void ZC_walk(map_view_t *pip, player_t *player, word pn)
 		break;
 		//left movement
 		case 1:
-			if(pip[0].tx > 0 && pip[0].tx+pip[0].page->ti.tw <= pip[0].map->width && player[pn].enti.tx == pip[0].tx+pip[0].page->ti.tilemidposscreenx &&
+			if(ZC_mapEdgeChk(pip, player[pn].enti.d, 0) && player[pn].enti.tx == pip[0].tx+pip[0].page->ti.tilemidposscreenx &&
 			!(pip[0].map->layerdata[0].data[(player[pn].enti.tx-2)+(pip[0].map->width*(player[pn].enti.ty-1))] == 0))//!(player[pn].enti.tx-1 == TRIGGX && player[pn].enti.ty == TRIGGY))	//collision detection!
 			{
 				player[pn].walktype=2;
@@ -102,7 +102,7 @@ void ZC_walk(map_view_t *pip, player_t *player, word pn)
 		break;
 		//down movement
 		case 4:
-			if(pip[0].ty >= 0 && pip[0].ty+pip[0].page->ti.th < pip[0].map->height && player[pn].enti.ty == pip[0].ty+pip[0].page->ti.tilemidposscreeny &&
+			if(ZC_mapEdgeChk(pip, player[pn].enti.d, 0) && player[pn].enti.ty == pip[0].ty+pip[0].page->ti.tilemidposscreeny &&
 			!(pip[0].map->layerdata[0].data[(player[pn].enti.tx-1)+(pip[0].map->width*(player[pn].enti.ty))] == 0))//!(player[pn].enti.tx == TRIGGX && player[pn].enti.ty+1 == TRIGGY))	//collision detection!
 			{
 				player[pn].walktype=2;
@@ -135,7 +135,7 @@ void ZC_walk(map_view_t *pip, player_t *player, word pn)
 		break;
 		//up movement
 		case 0:
-			if(pip[0].ty > 0 && pip[0].ty+pip[0].page->ti.th <= pip[0].map->height && player[pn].enti.ty == pip[0].ty+pip[0].page->ti.tilemidposscreeny &&
+			if(ZC_mapEdgeChk(pip, player[pn].enti.d, 0) && player[pn].enti.ty == pip[0].ty+pip[0].page->ti.tilemidposscreeny &&
 			!(pip[0].map->layerdata[0].data[(player[pn].enti.tx-1)+(pip[0].map->width*(player[pn].enti.ty-2))] == 0))//!(player[pn].enti.tx == TRIGGX && player[pn].enti.ty-1 == TRIGGY))	//collision detection!
 			{
 				player[pn].walktype=2;
@@ -178,7 +178,7 @@ void ZC_panPageManual(map_view_t *pip, player_t *player, word pn)
 	{
 		//right movement
 		case 3:
-			if(pip[0].tx >= 0 && pip[0].tx+pip[0].page->ti.tw < pip[0].page->ti.tilesw)
+			if(ZC_mapEdgeChk(pip, player[pn].enti.d, 1))
 			{
 				if(player[pn].enti.q<=player[pn].enti.spt)
 				{
@@ -191,7 +191,7 @@ void ZC_panPageManual(map_view_t *pip, player_t *player, word pn)
 
 		//left movement
 		case 1:
-			if(pip[0].tx > 0 && pip[0].tx+pip[0].page->ti.tw <= pip[0].page->ti.tilesw)
+			if(ZC_mapEdgeChk(pip, player[pn].enti.d, 1))
 			{
 				if(player[pn].enti.q<=player[pn].enti.spt)
 				{
@@ -204,7 +204,7 @@ void ZC_panPageManual(map_view_t *pip, player_t *player, word pn)
 
 		//down movement
 		case 4:
-			if(pip[0].ty >= 0 && pip[0].ty+pip[0].page->ti.th < pip[0].page->ti.tilesh)
+			if(ZC_mapEdgeChk(pip, player[pn].enti.d, 1))
 			{
 				if(player[pn].enti.q<=player[pn].enti.spt)
 				{
@@ -217,7 +217,7 @@ void ZC_panPageManual(map_view_t *pip, player_t *player, word pn)
 
 		//up movement
 		case 0:
-			if(pip[0].ty > 0 && pip[0].ty+pip[0].page->ti.th <= pip[0].page->ti.tilesh)
+			if(ZC_mapEdgeChk(pip, player[pn].enti.d, 1))
 			{
 				if(player[pn].enti.q<=player[pn].enti.spt)
 				{
@@ -338,7 +338,7 @@ void near mapScrollRight(map_view_t *mv, player_t *player, word id, word plid)
 
 	/* draw the next column */
 	x= mv[0].page->sw + mv[0].map->tiles->tileWidth;
-	if(mv[0].tx >= 0 && mv[0].tx+mv[0].page->ti.tw < mv[0].map->width)
+	if(ZC_mapEdgeChk(mv, player[plid].enti.d, 0))
 #ifndef FULLRCREND
 	if(player[plid].enti.q%4)
 #else
@@ -361,7 +361,7 @@ void near mapScrollLeft(map_view_t *mv, player_t *player, word id, word plid)
 
 	/* draw the next column */
 	x= 0;
-	if(mv[0].tx > 0 && mv[0].tx+mv[0].page->ti.tw <= mv[0].map->width)
+	if(ZC_mapEdgeChk(mv, player[plid].enti.d, 0))
 #ifndef FULLRCREND
 	if(player[plid].enti.q%4)
 #else
@@ -384,7 +384,7 @@ void near mapScrollUp(map_view_t *mv, player_t *player, word id, word plid)
 
 	/* draw the next row */
 	y= 0;
-	if(mv[0].ty > 0 && mv[0].ty+mv[0].page->ti.th <= mv[0].map->height)
+	if(ZC_mapEdgeChk(mv, player[plid].enti.d, 0))
 #ifndef FULLRCREND
 	if(player[plid].enti.q%3)
 #else
@@ -407,7 +407,7 @@ void near mapScrollDown(map_view_t *mv, player_t *player, word id, word plid)
 
 	/* draw the next row */
 	y= mv[0].page->sh + mv[0].map->tiles->tileHeight;
-	if(mv[0].ty >= 0 && mv[0].ty+mv[0].page->ti.th < mv[0].map->height)
+	if(ZC_mapEdgeChk(mv, player[plid].enti.d, 0))
 #ifndef FULLRCREND
 	if(player[plid].enti.q%3)
 #else
@@ -877,6 +877,10 @@ void player_walk(player_t *player, map_view_t *map_v){
 	}
 }
 
+/*
+ *	end
+ */
+
 void mapScroll(map_view_t *mv, player_t *player)
 {
 	//word x, y;  /* coordinate for drawing */
diff --git a/src/lib/scroll16.h b/src/lib/scroll16.h
index cefda677..45105a27 100755
--- a/src/lib/scroll16.h
+++ b/src/lib/scroll16.h
@@ -199,6 +199,51 @@ boolean ZC_walk2(entity_t *ent, map_view_t *map_v);
 // Move player around and call map scrolling if required/possible
 void walk_player(player_t *player, map_view_t *map_v);
 
+//check map edge
+inline boolean ZC_mapEdgeChk(map_view_t *map_v, nibble dir, boolean pansw)
+{
+	int	w,h;
+
+	switch (pansw)
+	{
+		case 0:
+			w = map_v[0].map->width;
+			h = map_v[0].map->height;
+		break;
+		case 1:
+			w = map_v[0].page->ti.tilesw;
+			h = map_v[0].page->ti.tilesh;
+		break;
+	}
+
+	switch(dir)
+	{
+		//no direction
+		default:
+		case 2:
+			//0000pip[0].video->startclk = (*clockw);
+			return false;
+		break;
+		//right movement
+		case 3:
+			if(map_v[0].tx >= 0 && map_v[0].tx+map_v[0].page->ti.tw < w) return true;
+		break;
+		//left movement
+		case 1:
+			if(map_v[0].tx > 0 && map_v[0].tx+map_v[0].page->ti.tw <= w) return true;
+		break;
+		//down movement
+		case 4:
+			if(map_v[0].ty >= 0 && map_v[0].ty+map_v[0].page->ti.th < h) return true;
+		break;
+		//up movement
+		case 0:
+			if(map_v[0].ty > 0 && map_v[0].ty+map_v[0].page->ti.th <= h) return true;
+		break;
+	}
+	return false;
+}
+
 // Scroll map in one direction (assumed from player's movement)
 void mapScroll(map_view_t *mv, player_t *player);
 
-- 
2.39.5