let there be light

1 files changed, 75 insertions, 0 deletions

diff --git a/src/input.lua b/src/input.lua
new file mode 100644
index 0000000..8029be2
--- /dev/null
+++ b/src/input.lua
@@ -0,0 +1,75 @@
+local lk = love.keyboard
+local lm = love.mouse
+
+local inputs = {}
+local keyEvents = {}
+local mouseEvents = {}
+
+---@param triggers table pair like this {type, keycode/name}
+function register_input(name, triggers)
+  inputs[name] = triggers
+end
+
+function input_direction(left, right, up, down)
+  return bton(is_input_pressed(right)) - bton(is_input_pressed(left)),
+    bton(is_input_pressed(down)) - bton(is_input_pressed(up))
+end
+
+function is_input_just_pressed(name)
+  local inp = inputs[name]
+  local type
+  local code
+
+  for _, trig in ipairs(inp) do
+    type = trig[1]
+    code = trig[2]
+
+    if type == "mouse" then
+      if mouseEvents[code] ~= nil then return true end
+    end
+    if type == "key" then
+      if keyEvents[code] ~= nil then return true end
+    end
+  end
+end
+
+function is_input_pressed(name)
+  local inp = inputs[name]
+  local type
+  local code
+
+  for _, trig in ipairs(inp) do
+    type = trig[1]
+    code = trig[2]
+
+    if type == "mouse" then
+      if lm.isDown(code) then return true end
+    end
+    if type == "key" then
+      if lk.isDown(code) then return true end
+    end
+  end
+end
+
+function love.keypressed(key)
+  keyEvents[key] = true
+end
+
+function love.mousepressed(x, y, btn)
+  mouseEvents[btn] = true
+end
+
+function get_mouse_pos()
+  -- TODO: Fix mouse position relative to games canvas
+  local scrw, scrh = love.graphics.getDimensions()
+  return math.floor(lm.getX() / scrw * SCR_WIDTH), math.floor(lm.getY() / scrh * SCR_HEIGHT)
+end
+
+function input_step()
+  for key in pairs(keyEvents) do
+    keyEvents[key] = nil
+  end
+  for key in pairs(mouseEvents) do
+    mouseEvents[key] = nil
+  end
+end