1 files changed, 163 insertions, 0 deletions
diff --git a/bump/main.lua b/bump/main.lua
new file mode 100644
index 0000000..973cd61
--- /dev/null
+++ b/bump/main.lua
@@ -0,0 +1,163 @@
+local bump       = require 'bump'
+local bump_debug = require 'bump_debug'
+io.stdout:setvbuf("no")
+local instructions = [[
+  bump.lua simple demo
+
+    arrows: move
+    tab: toggle debug info
+    delete: run garbage collector
+]]
+
+local cols_len = 0 -- how many collisions are happening
+
+-- World creation
+local world = bump.newWorld()
+
+
+-- Message/debug functions
+local function drawMessage()
+  local msg = instructions:format(tostring(shouldDrawDebug))
+  jin.graphics.setColor(255, 255, 255)
+  -- jin.graphics.print(msg, 550, 10)
+end
+
+local function drawDebug()
+  bump_debug.draw(world)
+
+  local statistics = ("fps: %d, mem: %dKB, collisions: %d, items: %d"):format(love.timer.getFPS(), collectgarbage("count"), cols_len, world:countItems())
+  jin.graphics.setColor(255, 255, 255)
+  -- jin.graphics.printf(statistics, 0, 580, 790, 'right')
+end
+
+local consoleBuffer = {}
+local consoleBufferSize = 15
+for i=1,consoleBufferSize do consoleBuffer[i] = "" end
+local function consolePrint(msg)
+  table.remove(consoleBuffer,1)
+  consoleBuffer[consoleBufferSize] = msg
+end
+
+local function drawConsole()
+  local str = table.concat(consoleBuffer, "\n")
+  for i=1,consoleBufferSize do
+    jin.graphics.setColor(255,255,255, i*255/consoleBufferSize)
+    -- love.graphics.printf(consoleBuffer[i], 10, 580-(consoleBufferSize - i)*12, 790, "left")
+  end
+end
+
+-- helper function
+local function drawBox(box, r,g,b)
+  jin.graphics.setColor(r,g,b,70)
+  jin.graphics.rect("fill", box.x, box.y, box.w, box.h)
+  jin.graphics.setColor(r,g,b)
+  jin.graphics.rect("line", box.x, box.y, box.w, box.h)
+end
+
+
+
+-- Player functions
+local player = { x=50,y=50,w=20,h=20, speed = 80, onGround = false}
+vx = 0
+vy = 0
+local function updatePlayer(dt)
+  local speed = player.speed
+  if jin.keyboard.isDown('Right') then
+    vx = speed
+  elseif jin.keyboard.isDown('Left') then
+    vx = -speed
+  end 
+  if jin.keyboard.isDown('Down') then
+    vy = vy 
+  elseif jin.keyboard.isDown('Up') then
+    vy = vy
+  elseif jin.keyboard.isDown('Space') and player.onGround then 
+    vy = vy - 12000 * dt  
+    print("jump")
+    print("on sky")
+    player.onGround = false
+  end
+  if not player.onGround then 
+    vy = vy + 200 * dt
+  end 
+  if vx ~= 0 or vy ~= 0 then
+    local cols
+    local py = player.y
+    player.x, player.y, cols, cols_len = world:move(player, player.x + vx * dt, player.y + vy * dt)
+    if py == player.y then 
+      player.onGround = true
+      vy = 0
+      print("on ground")
+    end
+    for i=1, cols_len do
+      local col = cols[i]
+      consolePrint(("col.other = %s, col.type = %s, col.normal = %d,%d"):format(col.other, col.type, col.normal.x, col.normal.y))
+    end
+  end
+  vx = 0
+end
+
+local function drawPlayer()
+  drawBox(player, 0, 255, 0)
+end
+
+-- Block functions
+
+local blocks = {}
+
+local function addBlock(x,y,w,h)
+  local block = {x=x,y=y,w=w,h=h}
+  blocks[#blocks+1] = block
+  world:add(block, x,y,w,h)
+end
+
+local function drawBlocks()
+  for _,block in ipairs(blocks) do
+    drawBox(block, 255,0,0)
+  end
+end
+
+function jin.core.onEvent(e)
+  if e.type == "quit" then 
+    jin.core.stop()
+  end
+  if e.type == "keydown" then 
+    if e.key == "Escape" then 
+      jin.core.stop()
+    end 
+  end
+end
+
+-- Main LÖVE functions
+
+function jin.core.onLoad()
+  world:add(player, player.x, player.y, player.w, player.h)
+
+  addBlock(0,       0,     800, 32)
+  addBlock(0,      32,      32, 600-32*2)
+  addBlock(800-32, 32,      32, 600-32*2)
+  addBlock(0,      600-32, 800, 32)
+
+  for i=1,30 do
+    addBlock( math.random(100, 600),
+              math.random(100, 400),
+              math.random(10, 100),
+              math.random(10, 100)
+    )
+  end
+end
+
+function jin.core.onUpdate(dt)
+  cols_len = 0
+  updatePlayer(dt)
+end
+
+function jin.core.onDraw()
+  drawBlocks()
+  drawPlayer()
+  if shouldDrawDebug then
+    drawDebug()
+    drawConsole()
+  end
+  drawMessage()
+end