require "animations"

sprites = {
    hero = nil,
    list = {},

    init = function()
        sprites.hero = {
            pos = { x=24, y=15 },
            size= { w=16, h=17 },
            bbo = { left=0, top=0, right=0, bottom=0 },
            flipped = false,
            jumping = 0,
            animation = "hero_stand",
            stairs = false,
            current_frame = 1,
            current_wait = 1
        }
    end,

    set_animation=function(sprite, animation)
        if sprite.animation ~= animation then
            sprite.animation = animation
            sprite.current_frame = 1
            sprite.current_wait = 1
        end
    end,

    check_sprite_collision = function()
        return false
    end,

    check_tile_collision = function()

    end,

    update = function()
        sprites.update_sprite(sprites.hero)

        -- Update hero
        local anim = "hero_stand"
        local move_anim = "hero_walk"
        if sprites.hero.jumping > 0 then
            anim = "hero_jump"
            local tx1, tx2, ty = (sprites.hero.pos.x+4)>>3, (sprites.hero.pos.x+11)>>3, (sprites.hero.pos.y)>>3
            if map.tile(tx1,ty) == 0 and map.tile(tx2,ty) == 0 then
                sprites.hero.pos.y = sprites.hero.pos.y - 2
            end
            sprites.hero.jumping = sprites.hero.jumping - 2
        else
            local txm, ty = (sprites.hero.pos.x+8)>>3, (sprites.hero.pos.y+8)>>3
            if (map.tile(txm,ty) > 0 and map.tile(txm,ty) < 16) or (map.tile(txm,ty+1) > 0 and map.tile(txm,ty+1) < 16) then
                anim = "hero_stairs_idle"
                move_anim = "hero_stairs"
                if key.down(key.UP) then
                    anim = move_anim
                    local tx1, tx2, ty = (sprites.hero.pos.x+4)>>3, (sprites.hero.pos.x+11)>>3, (sprites.hero.pos.y)>>3
                    if map.tile(tx1,ty) < 16 or map.tile(tx2,ty) < 16 then
                        sprites.hero.pos.y = sprites.hero.pos.y - 1
                    end
                elseif key.down(key.DOWN) then
                    anim = move_anim
                    local tx1, tx2, ty = (sprites.hero.pos.x+4)>>3, (sprites.hero.pos.x+11)>>3, (sprites.hero.pos.y+1)>>3
                    if map.tile(tx1,ty+2) < 16 or map.tile(tx2,ty+2) < 16 then
                        sprites.hero.pos.y = sprites.hero.pos.y + 1
                    end
                end
            else
                local tx1, txm, tx2, ty = (sprites.hero.pos.x+4)>>3, (sprites.hero.pos.x+8)>>3, (sprites.hero.pos.x+11)>>3, (sprites.hero.pos.y+1)>>3
                draw.rect(tx1<<3, (ty+2)<<3,8,8,8)
                draw.rect(tx2<<3, (ty+2)<<3,8,8,28)
                if map.tile(tx1,ty+2) == 0 and map.tile(tx2,ty+2) == 0 then
                    sprites.hero.pos.y = sprites.hero.pos.y + 2
                else
                    sprites.hero.pos.y = (ty<<3)-1
                    anim = "hero_stand"
                    if (map.tile(txm,ty+2) < 16 and map.tile(txm,ty+2) > 0) then
                        if key.down(key.DOWN) then
                            anim = "hero_stairs"
                            --local tx1, tx2, ty = (sprites.hero.pos.x+4)>>3, (sprites.hero.pos.x+11)>>3, (sprites.hero.pos.y+1)>>3
                            --if map.tile(tx1,ty+2) < 16 or map.tile(tx2,ty+2) < 16 then
                            sprites.hero.pos.x = (txm << 3)-4
                            sprites.hero.pos.y = sprites.hero.pos.y + 1
                            --end
                        end
                    end
                    if key.down(key.SPACE) then
                        sprites.hero.jumping = 16
                    end
                end
            end
        end
        if key.down(key.LEFT) then
            sprites.hero.flipped = true
            anim = move_anim
            local tx, ty = (sprites.hero.pos.x+3)>>3, (sprites.hero.pos.y+16)>>3
            if map.tile(tx,ty) < 16 and map.tile(tx,ty-1) < 16 then
                sprites.hero.pos.x = sprites.hero.pos.x - 1
            end
        elseif key.down(key.RIGHT) then
            sprites.hero.flipped = false
            anim = move_anim
            local tx, ty = (sprites.hero.pos.x+13)>>3, (sprites.hero.pos.y+16)>>3
            if map.tile(tx,ty) < 16 and map.tile(tx,ty-1) < 16 then
                sprites.hero.pos.x = sprites.hero.pos.x + 1
            end
        end

        sprites.set_animation(sprites.hero, anim)
    end,

    update_sprite = function(sprite)
        if sys.beat() then
            sprite.current_wait = sprite.current_wait - 1
            if sprite.current_wait == 0 then
                if sprite.current_frame < #animations[sprite.animation].cycle then
                    sprite.current_frame = sprite.current_frame + 1
                else
                    sprite.current_frame = 1
                end
                local cycle = animations[sprite.animation].cycle[sprite.current_frame]
                sprite.current_wait = animations[sprite.animation].frames[cycle].wait
            end
        end
    end,

    draw = function()
        surf.source(surf_sprites)

        sprites.draw_sprite(sprites.hero)
    end,

    draw_sprite = function(sprite)
        local cycle = animations[sprite.animation].cycle[sprite.current_frame]
        local frame = animations[sprite.animation].frames[cycle]
        local reversed = frame.reversed or false
        draw.surf(frame.frame.x, frame.frame.y, frame.frame.w, frame.frame.h, sprite.pos.x, sprite.pos.y, sprite.size.w, sprite.size.h, (not reversed) ~= (not sprite.flipped))
    end
}