LoveTron/players.lua

-- vim: expandtab tabstop=4 shiftwidth=4 softtabstop=4 autoindent:
-- kate: space-indent on; indent-width 4; mixedindent off;



players = {}

p1 = {}
p2 = {}

function players.load()
    -- Keys for player control
    p1.keyleft  = "h"
    p1.keyright = "j"
    
    p2.keyleft  = "left"
    p2.keyright = "right"
    
    -- Player's colors
    p1.color = {255, 20, 20, 255}
    p2.color = {20, 255, 20, 255}
    
    -- Player's states
    p1.state = "alive"
    p2.state = "alive"
    
    -- Player's starting directions 
    p1.direction = "right"
    p2.direction = "left"
    
    -- Player's starting points 
    p1.x, p1.y = maxWidth / 4, maxHeight / 2
    p2.x, p2.y = maxWidth - maxWidth / 4, maxHeight / 2
end


function players.turnLeft(direction)
    if direction == "left" then
        newDirection = "down"
    end
    if direction == "down" then
        newDirection = "right"
    end
    if direction == "right" then
        newDirection = "up"
    end
    if direction == "up" then
        newDirection = "left"
    end
    
    return newDirection
end

function players.turnRight(direction)
    if direction == "left" then
        newDirection = "up"
    end
    if direction == "down" then
        newDirection = "left"
    end
    if direction == "right" then
        newDirection = "down"
    end
    if direction == "up" then
        newDirection = "right"
    end
    
    return newDirection
end

function players.movePlayer(x, y, toDirection)
    if toDirection == "left" then
        x = x - 1 
    end
    if toDirection == "right" then
        x = x + 1
    end
    if toDirection == "up" then
        y = y - 1
    end
    if toDirection == "down" then
        y = y + 1
    end
    
    return x, y
end

function players.statePlayer(x, y, oldState)
    -- Handle collision Array. 
    state = oldState
    if (y >= maxHeight) or (y <= 0) or (x >= maxWidth) or (x <= 0) then
        state = "crashed"
    end
    if not (state == "crashed") then
        if collisionArray[x][y] > 0 then
            state = "crashed"
        else
            collisionArray[x][y] = 1

        end
    end
    
    return state
end


-- Those functions for the Löve 2D game loop
function update_players(dt)
    if (p1.state == "alive" and p2.state == "alive") then
        p1.x, p1.y = players.movePlayer(p1.x, p1.y, p1.direction)
        p1.state = players.statePlayer(p1.x, p1.y, p1.state)
        
        p2.x, p2.y = players.movePlayer(p2.x, p2.y, p2.direction)
        p2.state = players.statePlayer(p2.x, p2.y, p2.state)
    end
end

-- Those functions for the Löve 2D drawing loop
function draw_players()
    -- Players play in canvas ...
    love.graphics.setCanvas(canvas)
    
    -- Player 1
    love.graphics.setColor(p1.color)
    love.graphics.point(p1.x, p1.y)
    
    -- Player 2
    love.graphics.setColor(p2.color)
    love.graphics.point(p2.x, p2.y)
end