From 9ab6025a0cc3ab31c476f0b478ac69bfadd7f670 Mon Sep 17 00:00:00 2001
From: Clyne Sullivan <tullivan99@gmail.com>
Date: Thu, 29 Oct 2015 15:51:07 -0400
Subject: inventory visuals / item drop (Q)

---
 Changelog           |  5 ++++
 include/inventory.h | 13 ++++++++--
 src/inventory.cpp   | 71 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/ui.cpp          |  5 ++++
 src/world.cpp       |  8 +++++-
 5 files changed, 99 insertions(+), 3 deletions(-)

diff --git a/Changelog b/Changelog
index a5b5df9..6283ad9 100644
--- a/Changelog
+++ b/Changelog
@@ -201,3 +201,8 @@
 	- documented world.h
 	- fixed camera ortho
 	- began working on layer-switching animation
+	- added variable width backgrounds
+	- added a debug sprint speed
+
+	- the currently selected item is now drawn on the player
+	- pressing q discards (w/ visuals) the currently selected item
diff --git a/include/inventory.h b/include/inventory.h
index cb3e59d..e27391a 100644
--- a/include/inventory.h
+++ b/include/inventory.h
@@ -5,8 +5,12 @@
 
 #define DEBUG
 
-enum ITEM_ID {		// Contains item IDs for every item in the game, this is how items are stored. IDs are also used to lookup item strings
-	TEST_ITEM = 1,	// A test item (duh)
+/*
+ * A list of all item IDs.
+*/
+
+enum ITEM_ID {
+	TEST_ITEM = 1,
 	SWORD_ITEM	= 2
 };
 
@@ -26,10 +30,15 @@ public:
 	
 	int addItem(ITEM_ID id,unsigned char count);	// Add 'count' items with an id of 'id' to the inventory
 	int takeItem(ITEM_ID id,unsigned char count);	// Take 'count' items with an id of 'id' from the inventory
+	int useItem(ITEM_ID id);
+	
+	bool tossd;
+	int itemToss(void);
 	
 	void setSelection(unsigned int s);
 	
 	void draw(void);	// Draws a text list of items in this inventory (should only be called for the player for now)
+	
 };
 
 unsigned int initInventorySprites(void);	// Loads as many inventory textures as it can find, returns count
diff --git a/src/inventory.cpp b/src/inventory.cpp
index 2eb0087..3043e80 100644
--- a/src/inventory.cpp
+++ b/src/inventory.cpp
@@ -20,6 +20,8 @@ const char *ITEM_SPRITE[]={
 
 GLuint *ITEM_TEX;
 
+void itemDraw(Player *p,ITEM_ID id);
+
 unsigned int initInventorySprites(void){
 	unsigned int i,loadCount=0;
 	ITEM_TEX=(GLuint *)calloc(ITEM_COUNT,sizeof(GLuint));
@@ -36,6 +38,7 @@ Inventory::Inventory(unsigned int s){
 	sel=0;
 	size=s;
 	item=(struct item_t *)calloc(size,sizeof(struct item_t));
+	tossd=false;
 }
 
 Inventory::~Inventory(void){
@@ -74,6 +77,9 @@ int Inventory::takeItem(ITEM_ID id,unsigned char count){
 	unsigned int i;
 	for(i=0;i<size;i++){
 		if(item[i].id==id){
+#ifdef DEBUG
+			DEBUG_printf("Took %u of player's %s(s).\n",count,itemName[item[i].id]);
+#endif // DEBUG
 			item[i].count-=count;
 			if(item[i].count<0)
 				return item[i].count*-1;
@@ -105,4 +111,69 @@ void Inventory::draw(void){
 		glDisable(GL_TEXTURE_2D);
 		i++;
 	}
+	if(item[sel].count)itemDraw(player,item[sel].id);
+}
+
+static vec2 item_coord = {0,0};
+static vec2 item_velcd = {0,0};
+static bool item_tossd = false;
+static bool yes=false;
+
+void itemDraw(Player *p,ITEM_ID id){
+	static vec2 p1,p2;
+	if(!id)return;
+	glEnable(GL_TEXTURE_2D);
+	glBindTexture(GL_TEXTURE_2D,ITEM_TEX[id-1]);
+	if(!yes){
+		p1 = {p->loc.x+p->width/2,
+			  p->loc.y+p->width/2+HLINE*3};
+		p2 = {(float)(p1.x+p->width*(p->left?-.5:.5)),
+			  p->loc.y+HLINE*3};
+	}
+	if(p->inv->tossd) yes=true;
+	std::cout<<item_coord.x<<" "<<item_coord.y<<std::endl;
+	glBegin(GL_QUADS);
+		glTexCoord2i(0,1);glVertex2f(item_coord.x+p1.x,item_coord.y+p2.y);
+		glTexCoord2i(1,1);glVertex2f(item_coord.x+p2.x,item_coord.y+p2.y);
+		glTexCoord2i(1,0);glVertex2f(item_coord.x+p2.x,item_coord.y+p1.y);
+		glTexCoord2i(0,0);glVertex2f(item_coord.x+p1.x,item_coord.y+p1.y);
+	glEnd();
+	glDisable(GL_TEXTURE_2D);
+}
+
+void itemUse(Player *p,ITEM_ID id){
+	switch(id){
+	default:
+		ui::dialogBox(itemName[id],"You cannot use this item.");
+		break;
+	}
+}
+
+int Inventory::itemToss(void){
+	if(!item_tossd && item[sel].count && item[sel].id){
+		item_tossd = true;
+		item_coord.x = HLINE;
+		item_velcd.x = 0;
+		item_velcd.y = 3;
+		tossd = true;
+		return 1;
+	}else if(item_tossd){
+		if(item_coord.y<0){
+			memset(&item_coord,0,sizeof(vec2));
+			memset(&item_velcd,0,sizeof(vec2));
+			item_tossd = false;
+			
+			takeItem(item[sel].id,1);
+			
+			tossd = yes = false;
+			
+			return 0;
+		}else{
+			item_coord.x += item_velcd.x;
+			item_coord.y += item_velcd.y;
+			//item_velcd.x -= .005;
+			item_velcd.y -= .1;
+			return 1;
+		}
+	}
 }
diff --git a/src/ui.cpp b/src/ui.cpp
index 91da2e9..05b540e 100644
--- a/src/ui.cpp
+++ b/src/ui.cpp
@@ -262,6 +262,9 @@ namespace ui {
 						player->ground=false;
 					}
 				}
+				if(SDL_KEY==SDLK_q){
+					player->inv->itemToss();
+				}
 				if(SDL_KEY==SDLK_c){
 					dialogBox("","You pressed `c`, but nothing happened.");
 				}
@@ -287,6 +290,8 @@ namespace ui {
 			}
 		}
 		
+		if(player->inv->tossd)player->inv->itemToss();
+		
 		unsigned int i;
 		if(!dialogBoxExists&&AIpreaddr.size()){	// Flush preloaded AI functions if necessary
 			for(i=0;i<AIpreaddr.size();i++){
diff --git a/src/world.cpp b/src/world.cpp
index 641dbf9..5ff1f0f 100644
--- a/src/world.cpp
+++ b/src/world.cpp
@@ -602,7 +602,13 @@ void World::addHole(unsigned int start,unsigned int end){
 }
 
 int World::getTheWidth(void){
-	return -x_start*2;
+	World *hey=this;
+LOOP:
+	if(hey->infront){
+		hey=hey->infront;
+		goto LOOP;
+	}
+	return -hey->x_start*2;
 }
 
 IndoorWorld::IndoorWorld(void){
-- 
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