First pass at inventory menu rendering

GSCats.xcodeproj/project.pbxproj

@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXFileReference section */
+		700B5E6F2069831000B31C00 /* inventory.s */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.asm; path = inventory.s; sourceTree = "<group>"; };
 		700C39C51F2E5CA800C24F9C /* tables.s */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.asm; path = tables.s; sourceTree = "<group>"; };
 		700F21DE1F43E31300D7007D /* input.s */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.asm; path = input.s; sourceTree = "<group>"; };
 		700F21DF1F4A364600D7007D /* projectile.s */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.asm; path = projectile.s; sourceTree = "<group>"; };
@@ -54,6 +55,7 @@
 				700C39C51F2E5CA800C24F9C /* tables.s */,
 				70E266E31F6F262D005AC7E4 /* circleTable.s */,
 				70F0869F1F413A89002446C3 /* player.s */,
+				700B5E6F2069831000B31C00 /* inventory.s */,
 				700F21DF1F4A364600D7007D /* projectile.s */,
 				70A80FB01F43D7F200BD34C9 /* gamemanager.s */,
 				70E554C41F807ADB00F3C871 /* spritebank.s */,

GSCats.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

gamemanager.s

@@ -50,6 +50,8 @@ beginGameplay:
 	jsr clipTerrain
 	jsl renderTerrainSpans
 
+	jsr renderInventory
+
 gameplayLoop:
 	jsr syncVBL
 	BORDER_COLOR #$0

gameobject.s

@@ -56,7 +56,7 @@ placeGameObjectOnTerrain:
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ; vramPtr
 ;
-; PARAML0 = Pointer to gameobject data
+; PARAML0 = Pointer to X,Y (16 bits each)
 ; X => Offset to upper left corner of VRAM, or -1 if offscreen
 ;
 ; Trashes SCRATCHL

gscats.s

@@ -46,6 +46,7 @@ quitGame:
 .include "gamemanager.s"
 .include "input.s"
 .include "projectile.s"
+.include "inventory.s"
 
 endMainBank2:
 

inventory.s

@@ -0,0 +1,67 @@
+;
+;  inventory
+;  Code and data structures related to the weapons inventory and store
+;
+;  Created by Quinn Dunki on 8/13/17
+;
+
+
+INVENTORY_ITEMS = 6
+ITEM_WIDTH = 16		; In pixels
+ICON_WIDTH = 8		; In pixels
+ICON_ORIGIN = (ITEM_WIDTH-ICON_WIDTH)/4	; In bytes
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+; renderInventory
+;
+;
+renderInventory:
+	SAVE_AXY
+
+	; Compute initial VRAM position
+	ldy #(8192 + (160*10 + (160*ICON_ORIGIN + ICON_ORIGIN)))
+	ldx #0
+
+renderInventoryLoop:
+	jsr renderInventoryItem
+
+	tya		; Advance VRAM pointer
+	clc
+	adc #ITEM_WIDTH/2
+	tay
+
+	inx
+	cpx #INVENTORY_ITEMS
+	bne renderInventoryLoop
+
+RESTORE_AXY
+	rts
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+; renderInventoryItem
+;
+; X = Item index
+; Y = VRAM pos
+;
+renderInventoryItem:
+	SAVE_AXY
+
+	phy
+	phx
+	lda #1
+	clc
+	jsr DrawSpriteBank
+
+	plx
+	ply
+	txa
+	clc
+	jsr DrawSpriteBank
+
+RESTORE_AXY
+	rts
+
+renderInventoryItemParam:
+	.word 0,20
+

spritebank.s

@@ -8,7 +8,7 @@ DrawSpriteBank :
 	  	 JMP 	 (SpriteBankBank,X) 	 ; Bank Number Table
 	  	  	  	 
 SpriteBankNum :
- 	 .dbyt 	 $0000,$0500,$0400,$0100,$0200,$0600,$0300 	 
+ 	 .dbyt 	 $0000,$0400,$0500,$0100,$0200,$0600,$0300 	 
 	  	  	  	 
 SpriteBankBank :
  	 .addr 	 SpriteBankBank00,SpriteBankBank00,SpriteBankBank00,SpriteBankBank00,SpriteBankBank00,SpriteBankBank00,SpriteBankBank00