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buildings.lua
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buildings.lua
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-----------------------------------------------------------------------------------------
--
-- buildings.lua
--
-----------------------------------------------------------------------------------------
-- Include Corona's libraries
local math = require "math"
local storyboard = require "storyboard"
local timer = require "timer"
local widget = require "widget"
local screenW, screenH = display.contentWidth, display.contentHeight
-- Public interface
buildings = {}
-- Public variables
buildings.width = 150
buildings.height = 50
buildings.grid_width =7
buildings.grid_spacing = 50
-- Building colours
building_colours = {
commercial = {
left = {0.6, 0.6, 0.2},
right = {0.5, 0.5, 0.1},
top = {0.8, 0.8, 0.3}
},
industrial = {
left = {0.1, 0.9, 0.1},
right = {0, 0.7, 0},
top = {0.2, 1, 0.2}
},
reactor = {
left = {0.2, 0.2, 0.8},
right = {0.1, 0.1, 0.6},
top = {0.3, 0.3, 0.9}
},
residential = {
left = {0.9, 0.1, 0.1},
right = {0.7, 0, 0},
top = {1, 0.2, 0.2}
},
substation = {
left = {0.2, 0.5, 0.9},
right = {0.1, 0.4, 0.7},
top = {0.3, 0.6, 1}
}
}
-- Reference to the grid
local grid = nil
function buildings.init(init_grid)
grid = init_grid
end
-- Utility function to reorder buildings
function buildings.reorder()
local x_index = 1
while (x_index <= buildings.grid_width) do
local y_index = buildings.grid_width
while (y_index >= 1) do
if ((grid[x_index]) and (grid[x_index][y_index])) then
grid[x_index][y_index]:toFront()
end
y_index = y_index - 1
end
x_index = x_index + 1
end
end
function buildings.newBuilding(group, x_index, y_index, type, level)
local building = display.newGroup()
building.group = group
building.type = type
building.x_index = x_index
building.y_index = y_index
if (type == "space") then
local vertices = {
-buildings.width / 2, 0,
0, -buildings.width / 4,
buildings.width / 2, 0,
0, buildings.width / 4
}
local space = display.newPolygon(0, 0, vertices)
space:setFillColor(0.5, 0.5, 0.5)
space:setStrokeColor(0.1, 0.1, 0.1)
space.strokeWidth = 2
function building.update(frame_index, frame_range)
return
end
-- Add an event listener to the space, to create a new building
function building:tap(event)
-- Just create a random building for now, because I don't have time to do this properly
local random_type = math.random(4)
if (random_type == 1) then
local substation = buildings.newBuilding(building.group, building.x_index, building.y_index, "substation", 1)
building.group:remove(building)
grid[building.x_index][building.y_index] = substation
substation.x = (screenW / 2) + ((building.x_index + building.y_index - (buildings.grid_width + 1.5)) * ((buildings.width + buildings.grid_spacing) / 2))
substation.y = (screenH / 2) + ((building.x_index - building.y_index) * ((buildings.width + buildings.grid_spacing) / 4))
elseif (random_type == 2) then
local residential = buildings.newBuilding(building.group, building.x_index, building.y_index, "residential", 1)
building.group:remove(building)
grid[building.x_index][building.y_index] = residential
residential.x = (screenW / 2) + ((building.x_index + building.y_index - (buildings.grid_width + 1.5)) * ((buildings.width + buildings.grid_spacing) / 2))
residential.y = (screenH / 2) + ((building.x_index - building.y_index) * ((buildings.width + buildings.grid_spacing) / 4))
elseif (random_type == 3) then
local industrial = buildings.newBuilding(building.group, building.x_index, building.y_index, "industrial", 1)
building.group:remove(building)
grid[building.x_index][building.y_index] = industrial
industrial.x = (screenW / 2) + ((building.x_index + building.y_index - (buildings.grid_width + 1.5)) * ((buildings.width + buildings.grid_spacing) / 2))
industrial.y = (screenH / 2) + ((building.x_index - building.y_index) * ((buildings.width + buildings.grid_spacing) / 4))
elseif (random_type == 4) then
local commercial = buildings.newBuilding(building.group, building.x_index, building.y_index, "commercial", 1)
building.group:remove(building)
grid[building.x_index][building.y_index] = commercial
commercial.x = (screenW / 2) + ((building.x_index + building.y_index - (buildings.grid_width + 1.5)) * ((buildings.width + buildings.grid_spacing) / 2))
commercial.y = (screenH / 2) + ((building.x_index - building.y_index) * ((buildings.width + buildings.grid_spacing) / 4))
end
buildings.reorder()
return true
end
building:insert(space)
else
local left_vertices = {
-buildings.width / 2, 0,
-buildings.width / 2, -buildings.height * level,
0, (-buildings.height * level) + (buildings.width / 4),
0, buildings.width / 4
}
local right_vertices = {
0, buildings.width / 4,
0, (-buildings.height * level) + (buildings.width / 4),
buildings.width / 2, -buildings.height * level,
buildings.width / 2, 0
}
local top_vertices = {
-buildings.width / 2, -buildings.height * level,
0, (-buildings.height * level) - (buildings.width / 4),
buildings.width / 2, -buildings.height * level,
0, (-buildings.height * level) + (buildings.width / 4)
}
local left = display.newPolygon(0, 0, left_vertices)
left:setStrokeColor(0.1, 0.1, 0.1)
left.strokeWidth = 2
left.x = 0
left.y = (-buildings.height * level) + (buildings.width / 4)
building:insert(left)
local right = display.newPolygon(0, 0, right_vertices)
right:setStrokeColor(0.1, 0.1, 0.1)
right.strokeWidth = 2
right.x = buildings.width / 2
right.y = (-buildings.height * level) + (buildings.width / 4)
building:insert(right)
local top = display.newPolygon(0, 0, top_vertices)
top:setStrokeColor(0.1, 0.1, 0.1)
top.strokeWidth = 2
top.x = 0
top.y = -buildings.height * level
building:insert(top)
building.level = level
building.max_fill_level = 100 * level
building.fill_level = 0
if (type == "reactor") then
building.fill_level = building.max_fill_level
-- Add an event listener to the reactor, to upgrade it
function building:tap(event)
-- Just upgrade for now, because I don't have time to do this properly
local reactor = buildings.newBuilding(building.group, building.x_index, building.y_index, "reactor", building.level + 1)
building.group:remove(building)
grid[building.x_index][building.y_index] = reactor
reactor.x = (screenW / 2) + ((building.x_index + building.y_index - (buildings.grid_width + 1.5)) * ((buildings.width + buildings.grid_spacing) / 2))
reactor.y = (screenH / 2) + ((building.x_index - building.y_index) * ((buildings.width + buildings.grid_spacing) / 4))
buildings.reorder()
return true
end
elseif (type == "substation") then
function building.setEnergyStored(energy_stored)
building.fill_level = energy_stored
end
building.energy_capacity = building.max_fill_level
-- Add an event listener to the substation, to upgrade it or destroy it
function building:tap(event)
-- Just upgrade or destroy randomly for now, because I don't have time to do this properly
local random_action = math.random(2)
if (random_action == 1) then
local substation = buildings.newBuilding(building.group, building.x_index, building.y_index, "substation", building.level + 1)
building.group:remove(building)
grid[building.x_index][building.y_index] = substation
substation.x = (screenW / 2) + ((building.x_index + building.y_index - (buildings.grid_width + 1.5)) * ((buildings.width + buildings.grid_spacing) / 2))
substation.y = (screenH / 2) + ((building.x_index - building.y_index) * ((buildings.width + buildings.grid_spacing) / 4))
elseif (random_action == 2) then
local space = buildings.newSpace(building.group, building.x_index, building.y_index)
building.group:remove(building)
grid[building.x_index][building.y_index] = space
space.x = (screenW / 2) + ((building.x_index + building.y_index - (buildings.grid_width + 1.5)) * ((buildings.width + buildings.grid_spacing) / 2))
space.y = (screenH / 2) + ((building.x_index - building.y_index) * ((buildings.width + buildings.grid_spacing) / 4))
end
buildings.reorder()
return true
end
elseif ((type == "residential") or (type == "industrial") or (type == "commercial")) then
building.energy_draw = building.max_fill_level / 10
function building.updateFillLevel(energy_stored, energy_capacity)
if (building.disabled) then
return
end
if (energy_stored >= energy_capacity) then
building.fill_level = math.min(building.fill_level + building.energy_draw, building.max_fill_level)
elseif (energy_stored > 0) then
building.fill_level = math.min(building.fill_level + (building.energy_draw / 10), building.max_fill_level)
else
building.fill_level = math.max(building.fill_level - building.energy_draw, 0)
end
end
-- Add an event listener to the residential building, to upgrade it, disable it or destroy it
function building:tap(event)
-- Just upgrade, disable/enable or destroy randomly for now, because I don't have time to do this properly
local random_action = math.random(3)
if (random_action == 1) then
local residential = buildings.newBuilding(building.group, building.x_index, building.y_index, building.type, building.level + 1)
building.group:remove(building)
grid[building.x_index][building.y_index] = residential
residential.x = (screenW / 2) + ((building.x_index + building.y_index - (buildings.grid_width + 1.5)) * ((buildings.width + buildings.grid_spacing) / 2))
residential.y = (screenH / 2) + ((building.x_index - building.y_index) * ((buildings.width + buildings.grid_spacing) / 4))
elseif (random_action == 2) then
local space = buildings.newSpace(building.group, building.x_index, building.y_index)
building.group:remove(building)
grid[building.x_index][building.y_index] = space
space.x = (screenW / 2) + ((building.x_index + building.y_index - (buildings.grid_width + 1.5)) * ((buildings.width + buildings.grid_spacing) / 2))
space.y = (screenH / 2) + ((building.x_index - building.y_index) * ((buildings.width + buildings.grid_spacing) / 4))
elseif (random_action == 3) then
building.disabled = not building.disabled
end
buildings.reorder()
return true
end
end
function building.update(frame_index, frame_range)
if (building.disabled) then
frame_index = 0
end
local ratio = ((math.cos(2 * math.pi * frame_index / frame_range) + 3) / 4) * ((building.fill_level + 10) / (building.max_fill_level + 10))
left:setFillColor(building_colours[type]["left"][1] * ratio, building_colours[type]["left"][2] * ratio, building_colours[type]["left"][3] * ratio, (ratio + 2) / 3)
right:setFillColor(building_colours[type]["right"][1] * ratio, building_colours[type]["right"][2] * ratio, building_colours[type]["right"][3] * ratio, (ratio + 2) / 3)
top:setFillColor(building_colours[type]["top"][1] * ratio, building_colours[type]["top"][2] * ratio, building_colours[type]["top"][3] * ratio, (ratio + 2) / 3)
return
end
left:setFillColor(building_colours[type]["left"][1], building_colours[type]["left"][2], building_colours[type]["left"][3])
right:setFillColor(building_colours[type]["right"][1], building_colours[type]["right"][2], building_colours[type]["right"][3])
top:setFillColor(building_colours[type]["top"][1], building_colours[type]["top"][2], building_colours[type]["top"][3])
end
building:addEventListener("tap", building)
group:insert(building)
return building
end
function buildings.newSpace(group, x_index, y_index)
return buildings.newBuilding(group, x_index, y_index, "space", 0)
end
return buildings