Item list implementation

Co-authored-by: sigonasr2 <sigonasr2@gmail.com>

main.cpp

@@ -165,6 +165,7 @@ public:
 	int POWER_SELECTION_CURSOR[4]={0,0,0,0};
 	int POWER_GRADE_CURSOR[4]={0,0,0,0};
 	int ITEM_SELECTION_CURSOR=0;
+	int ITEM_SELECTION_OFFSET=0;
 	int TARGET_SELECTION_CURSOR=0;
 	bool ANYKEYPRESSED=false;
 	bool ACTIONKEYPRESSED=false;
@@ -258,9 +259,12 @@ This is a test message that lets us trigger straight from a cutscene! Cool!)"),
 			액션 ModifyObject(0,ANIMATIONS["player.png"],{5,5},MAGENTA),
 			액션 MoveCutsceneObject(1,{320,64},1),});
 
-		AddItemToPlayerInventory(ItemName::COOKIE);
-		AddItemToPlayerInventory(ItemName::COOKIE);
-		AddItemToPlayerInventory(ItemName::COOKIE);
+		for (int i=0;i<20;i++) {
+			AddItemToPlayerInventory(ItemName::COOKIE);
+		}
+		for (int i=0;i<8;i++) {
+			AddItemToPlayerInventory(ItemName::PIZZA);
+		}
 		AddItemToPlayerInventory(ItemName::CRACKED_BAT);
 
 		return true;
@@ -683,6 +687,7 @@ This is a test message that lets us trigger straight from a cutscene! Cool!)"),
 								}break;
 								case 2:{ //Items selected.
 									BATTLE_STATE=BattleState::ITEM_SELECT;
+									ITEM_SELECTION_CURSOR=0;
 								}break;
 								case 3:{ //Defend selected.
 									//DisplayMessageBox("Not implemented yet.");
@@ -956,23 +961,52 @@ This is a test message that lets us trigger straight from a cutscene! Cool!)"),
 				}break;
 				case BattleState::ITEM_SELECT:{
 					if (LeftPressed()||RightPressed()) {
+						if (LeftPressed()&&!(ITEM_SELECTION_CURSOR&1)) {
+							BATTLE_STATE=BattleState::SELECT_ACTION;
+						}
 						ITEM_SELECTION_CURSOR+=ITEM_SELECTION_CURSOR&1?-1:1;
+						if (ITEM_SELECTION_CURSOR>=PARTY_INVENTORY.size()) {
+							ITEM_SELECTION_CURSOR--;
+						}
 					}
 					if (UpPressed()) {
 						ITEM_SELECTION_CURSOR-=2;
 						if (ITEM_SELECTION_CURSOR<0) {
-							ITEM_SELECTION_CURSOR+=PARTY_INVENTORY.size();
+							if (PARTY_INVENTORY.size()&1) {
+								ITEM_SELECTION_CURSOR+=PARTY_INVENTORY.size()+1;
+								if (ITEM_SELECTION_CURSOR>=PARTY_INVENTORY.size()) {
+									ITEM_SELECTION_CURSOR-=2;
+								}
+								ITEM_SELECTION_OFFSET=std::clamp((int)PARTY_INVENTORY.size()/2*2-18+2,0,(int)PARTY_INVENTORY.size()-1);
+							} else {
+								ITEM_SELECTION_CURSOR+=PARTY_INVENTORY.size();
+								ITEM_SELECTION_OFFSET=std::clamp((int)PARTY_INVENTORY.size()/2*2-18,0,(int)PARTY_INVENTORY.size()-1);
+							}
+								
+						}
+						if (ITEM_SELECTION_CURSOR<ITEM_SELECTION_OFFSET) {
+							ITEM_SELECTION_OFFSET=ITEM_SELECTION_CURSOR/2*2;
 						}
 					}
 					if (DownPressed()) {
 						ITEM_SELECTION_CURSOR+=2;
-						if (ITEM_SELECTION_CURSOR<0) {
-							ITEM_SELECTION_CURSOR+=PARTY_INVENTORY.size();
+						if (ITEM_SELECTION_CURSOR>=PARTY_INVENTORY.size()) {
+							if (PARTY_INVENTORY.size()&1) {
+								if (ITEM_SELECTION_CURSOR&1) {
+									ITEM_SELECTION_CURSOR--;
+								} else {
+									ITEM_SELECTION_CURSOR-=PARTY_INVENTORY.size()+1;
+								}
+							} else {
+								ITEM_SELECTION_CURSOR-=PARTY_INVENTORY.size();
+							}
+							ITEM_SELECTION_OFFSET=0;
+						}
+						if (ITEM_SELECTION_CURSOR>=ITEM_SELECTION_OFFSET+18) {
+							ITEM_SELECTION_OFFSET=ITEM_SELECTION_CURSOR/2*2-16;
 						}
 					}
-					if (ITEM_SELECTION_CURSOR>=PARTY_INVENTORY.size()) {
-						ITEM_SELECTION_CURSOR=PARTY_INVENTORY.size()-1;
-					} 
+					printf("%d %d\n",ITEM_SELECTION_OFFSET,ITEM_SELECTION_CURSOR);
 				}break;
 			}
 		}
@@ -1311,8 +1345,19 @@ This is a test message that lets us trigger straight from a cutscene! Cool!)"),
 			}
 			if (BATTLE_STATE==BattleState::ITEM_SELECT) {
 				SetDrawTarget(layer::INTERFACE);
-				DrawDecal({static_cast<float>(8+ITEM_SELECTION_CURSOR*(WIDTH-8)/2),static_cast<float>(12*(POWER_SELECTION_CURSOR[-CURRENT_TURN-1]-POWER_SELECTION_OFFSET[-CURRENT_TURN-1])+8)},SPRITES["cursor.png"]);
+				DrawDecal({static_cast<float>(8+(ITEM_SELECTION_CURSOR)%2*(WIDTH-8)/2),static_cast<float>(12*((ITEM_SELECTION_CURSOR-ITEM_SELECTION_OFFSET)/2)+8)},SPRITES["cursor.png"]);
 				DrawDialogBox({4,4},{(int)(WIDTH-8),(int)(HEIGHT/2)},Pixel(70, 33, 105,128),Pixel(62, 54, 69,128),Pixel(185, 148, 255,128));
+				for (int i=0;i<18;i++) {
+					if (ITEM_SELECTION_OFFSET+i<PARTY_INVENTORY.size()) {
+						DrawStringDecal({static_cast<float>(16+i%2*(WIDTH-8)/2),static_cast<float>(12*(i/2)+8)},PARTY_INVENTORY[ITEM_SELECTION_OFFSET+i]->name);
+					}
+				}
+				if (ITEM_SELECTION_OFFSET>0) {
+					DrawRotatedDecal({WIDTH-20,8},SPRITES["cursor.png"],-M_PI_2,{4,4});
+				}
+				if (ITEM_SELECTION_OFFSET+18<PARTY_INVENTORY.size()) {
+					DrawRotatedDecal({WIDTH-20,4+HEIGHT/2-4},SPRITES["cursor.png"],M_PI_2,{4,4});
+				}
 			}
 			if (BATTLE_STATE==BattleState::TARGET_SELECT) {
 				SetDrawTarget(layer::GROUND);