enemy detection

WarIO.lua

@@ -4,35 +4,30 @@
 -- projects quite a bit to see how things were structured, and then 
 -- tried to implement it on my own.
 
-local BoxRadius = 4
+local BoxRadius = 3
 
 local PlayerX
 local PlayerY
+local Blocks
 
 function getPlayerLocation()
  PlayerX = memory.readbyte(0x071C) + 256 * memory.readbyte(0x071A)
  PlayerY = memory.readbyte(0x03B8)
 end
 
-function getBlocks()
- local blocks = {}
-
+function getBlocks(blocks)
  for i = 0, 16 do
  blocks[i] = {}
  for j = 0, 13 do -- 16 * 13 = 208
  local block = {}
- -- Idk why there's a + 8 and - 16. I couldn't figure out why my
- -- code wouldn't work until I saw those in the LuigI/O code.
- local TempX = PlayerX + (i - 8) * 16
+ local TempX = PlayerX + (i) * 16
  local BlockX = math.floor((TempX % 256) / 16)
- local BlockY = math.floor((PlayerY + (j - 6) * 13 - 48) / 16) -- -16 - 32 = -48
- block.x = BlockX * 16
- block.y = BlockY * 16
+ local BlockY = j * 16
 
  local BlockAddress = 0
- if ((TempX / 256) % 2 == 1) then BlockAddress = 208 end
- BlockAddress = 0x0500 + BlockAddress + BlockY * 16 + BlockX
- if (memory.readbyte(BlockAddress) ~= 0 and BlockY < 13 and BlockY >= 0) then block.value = 1 
+ if (math.floor(TempX / 256) % 2 == 1) then BlockAddress = 208 end
+ BlockAddress = 0x0500 + BlockAddress + BlockY + BlockX
+ if (memory.readbyte(BlockAddress) ~= 0 and BlockY < 13 * 16 and BlockY >= 0) then block.value = 1 
  else block.value = 0 end
 
  blocks[i][j] = block
@@ -42,20 +37,49 @@ function getBlocks()
  return blocks
 end
 
-function displayBlocks(blocks)
+function getEnemies(blocks)
+ for i = 0, 5 do
+ if (memory.readbyte(0x00F + i) == 1) then
+ local enemy = {}
+ enemy.x = (memory.readbyte(0x0087 + i) + 256 * memory.readbyte(0x006E + i) - PlayerX)
+
+ if (enemy.x >= 0 and enemy.x <= 256) then
+ enemy.x = math.floor(enemy.x % 256 / 16)
+ enemy.y = math.floor((memory.readbyte(0x00CF + i) - 8) / 16)
+ gui.text(0, i * 15 + 25, "Enemy coords: " .. enemy.x .. " " .. enemy.y)
+ enemy.value = 2
+ blocks[enemy.x + 1][enemy.y - 1] = enemy
+ end
+ end
+ end
+
+ blocks.enemies = enemies
+ return blocks
+end
+
+function display(blocks)
  for i = 0, 16 do
  for j = 0, 13 do
  if (blocks[i][j].value == 1) then
- gui.drawBox(blocks[i][j].x - BoxRadius, blocks[i][j].y - BoxRadius + 32, blocks[i][j].x + BoxRadius, blocks[i][j].y + BoxRadius + 32)
+ gui.drawBox(i * 2 * BoxRadius - BoxRadius, j * 2 * BoxRadius - BoxRadius + 32, i * 2 * BoxRadius + BoxRadius, j * 2 * BoxRadius + BoxRadius + 32, "white") 
+ end
+ if (blocks[i][j].value == 2) then
+ gui.drawBox(i * 2 * BoxRadius - BoxRadius, j * 2 * BoxRadius - BoxRadius + 32, i * 2 * BoxRadius + BoxRadius, j * 2 * BoxRadius + BoxRadius + 32, "red")
  end
  end
  end
 end
 
 while true do
  memory.writebyte(0x075A, 2)
+ memory.writebyte(0x0787, 0x02)
  getPlayerLocation()
- displayBlocks(getBlocks())
+
+ local blocks = {}
+ blocks = getBlocks(blocks)
+ blocks = getEnemies(blocks)
+ display(blocks)
+
  gui.text(0, 10, "Player Position: " .. PlayerX .. " " .. PlayerY)
  emu.frameadvance()
 end