more changes

asm/mp4/MP4 vanilla store playerplace and gamephase.asm

@@ -0,0 +1,65 @@
+#To be inserted at 80086480
+#Original instruction
+lwz r3, 0 (r4)
+
+#Store current player's placement
+#Load curplayer index, multiply by 0x30
+lis r15, 0x8018 
+ori r15, r15, 0xFD02
+lbz r15, 0 (r15)
+
+mulli r15, r15, 0x30
+
+#Get current player placement
+lis r4, 0x8018
+ori r4, r4, 0xFC38 #player structs start
+
+add r4, r4, r15 #now points to cur player
+
+lbz r4, 0x0009 (r4) #cur player placement byte
+andi. r4, r4, 0x60
+srwi r4, r4, 5 #return player placement
+
+lis r15, 0x8018
+ori r15, r15, 0xFD62 #Store player placement on 0x8018FD62
+
+sth r4, 0 (r15)
+
+#Store current game phase (00: Early, 01: Mid, 02: Late)
+#Get turn data used for the code
+lis r14, 0x8018
+ori r14, r14, 0xFCFC
+lbz r4, 1 (r14) #Max Turn
+lbz r14, 0 (r14) #Current Turn
+
+li r14, 3
+divw r4, r4, r14 #Divide Max Turn / 3.
+
+lis r14, 0x8018 
+ori r14, r14, 0xFCFC
+lbz r14, 0 (r14) #Current Turn
+
+
+li r15, 0 #Earlygame byte
+cmpw r14, r4
+ble set_gamephase
+
+li r15, 1 #Midgame byte
+
+mulli r4, r4, 2
+cmpw r14, r4
+ble set_gamephase 
+
+li r15, 2 #Lategame byte
+
+set_gamephase:
+
+lis r4, 0x8018
+ori r4, r4, 0xFD72 #Store gamephase on 0x8018FD72
+
+sth r15, 0 (r4)
+
+li r14, 0
+li r15, 0
+
+

asm/mp4/RandomItems 1to3 Vanilla.asm

@@ -0,0 +1,60 @@
+#To be inserted at 80083878
+#To be inserted at 80083878
+#Item Space weights struct
+lis r7, 0x8018
+ori r7, r7, 0xFD64
+
+# Calculate the range of random values based on percentages
+li r3, 0
+li r4, 0
+
+loop_calc:
+    cmpwi r3, 0xE # Exit at 0xE 
+    beq- exit_calc
+	
+    lhzx r5, r7, r3 # Load the percentage for the current item using r3 as index
+    add r4, r4, r5 # Add the percentage to the range of random values
+    addi r3, r3, 1 # Increment index by 1
+    b loop_calc
+exit_calc:
+
+# Call the random integer function
+lis r5, 0x8005
+ori r5, r5, 0xFB40 # 0x8005FB40 get rand int function
+mtctr r5
+mr r3, r4
+bctrl
+
+# rand integer in r3 in range of percentages array
+
+# Select the item based on the random integer
+li r4, 0
+li r5, 0
+loop_select:
+    cmpwi r5, 0xE # Exit at 0xE
+    beq- exit_select
+	
+    lhzx r6, r7, r5 # Load the percentage for the current item using r5 as index
+    sub r3, r3, r6 # Subtract the percentage from the random integer
+    cmpwi r3, 0 # Compare the updated random integer with 0
+    bge+ loop_increment # If the updated random integer is greater than or equal to 0, continue to the next item
+    b exit
+loop_increment:
+    addi r4, r4, 1 #item id increment
+    addi r5, r5, 1 # Increment index by 1 
+    b loop_select
+exit:
+lis r5, 0x817F
+ori r5, r5, 0xFFF0
+stw r4, 0 (r5)
+cmpwi r4, 8
+blt- skipModelIncrement
+#there's a gap in the item models starting at gaddlight's item id (8)
+addi r4, r4, 1
+
+skipModelIncrement:
+lis r5, 0x0007
+ori r5, r5, 0x006d #base item id
+add r3, r4, r5
+li r4, 0 #restore from hook
+li r5, 0 #restore from hook