chroma_solstice/entity.lua

Entity = class("Entity")

function Entity:initialize(t)
	self.gridX, self.gridY = t.x, t.y
	self.gridSize = {x = t.sizeX, y = t.sizeY}
	self.color = Color:new(t.color)
	self.collision = t.collision --either "none", "moveable", "unmoveable"
end

function Entity:atGridPos(x, y)
	if x >= self.gridX and x <= self.gridX + self.gridSize.x and
	  y >= self.gridY and y <= self.gridSize.y then
	  return true
	end
	return false
end

function Entity:getGridPos()
	return {x = self.gridX, y = self.gridY}
end

function Entity:getDrawPos()
	local gridPos = self:getGridPos()
	return {
		x = (gridPos.x - 1) * width / gridWidth,
		y = (gridPos.y - 1) * height / gridHeight
	}
end