tic80-stuff/miniblast/miniblaster.lua

-- title:   miniblaster
-- author:  pixelbath
-- desc:    short description
-- site:    website link
-- license: MIT License (change this to your license of choice)
-- version: 0.1
-- script:  lua

t=0
x=96
y=24

entities={}

walls={
	[1]=true,
	[2]=true,
	[16]=true
}

config={
	coyote_time=3,
	jump_spd=2.2,
	walk_spd=1.0,
	slide_spd=2.0,
}

player={
	x=96, y=24,
	vx=0, vy=0,
	gx=0, gy=0,
	is_jmp=false,
	flip=0,
	spr=256,
	w_spr={257,258,256},
	j_spr=259,
	w_spr_idx=0,
	w_timer=0,
	is_wlk=0,
	dir=0, -- 0=horizontal, 1=diagonal, 2=vertical
	slide_timer=-1,
	bullets={},
	coyote_timer=-1,
}

debug={
	pline=0,
	px=2, py=2,
}

function solid(x, y)
	return walls[mget((x)//8,(y)//8)]
end


function debug:print(msg)
	rect(self.px, self.py + (self.pline * 7), #msg * 4, 0, 1)
	print(msg, self.px, self.py + (self.pline * 7), 4, true, 1, true)
	self.pline = self.pline + 1
end

function debug:draw()
	self.pline = 0
	-- draw player shoot direction
	if false then
		local dx, dy = player.x+4, player.y+4
		local dist = 100
		if player.flip == 1 then dist = -100 end
		if player.dir == 0 then
			dx = player.x + dist
		elseif player.dir == 1 then
			dx = player.x + dist
			dy = player.y - 100
		elseif player.dir == 2 then
			dy = player.y - 100
		end
		line(player.x+4, player.y+4, dx, dy, 1)
	end
	

	local mapx = player.x // 8
	local mapy = player.y // 8
	debug:print("player: "..player.x..", "..player.y)
	debug:print("map: "..mapx..", "..mapy..": "..mget(mapx, mapy))

	-- controller
	local cont_x, cont_y = 2, 110
	rect(cont_x, cont_y, 10, 5, 0)
	line(cont_x+1, cont_y+2, cont_x+3, cont_y+2, 8)
	line(cont_x+2, cont_y+1, cont_x+2, cont_y+3, 8)
	pix(cont_x+6, cont_y+3, 8)	
	pix(cont_x+8, cont_y+3, 8)
	pix(cont_x+6, cont_y+1, 8)	
	pix(cont_x+8, cont_y+1, 8)	
	if btn(0) then pix(cont_x+2, cont_y+1, 10) end
	if btn(1) then pix(cont_x+2, cont_y+3, 10) end
	if btn(2) then pix(cont_x+1, cont_y+2, 10) end
	if btn(3) then pix(cont_x+3, cont_y+2, 10) end
	if btn(4) then pix(cont_x+6, cont_y+3, 10) end
	if btn(5) then pix(cont_x+8, cont_y+3, 10) end
	if btn(6) then pix(cont_x+6, cont_y+1, 10) end
	if btn(7) then pix(cont_x+8, cont_y+1, 10) end
end

function player:update()
	local dir_held = false
	local up_held = false
	if btn(0) then
		player.dir = 2
		up_held = true
	end
	-- left
	if btn(2) then
		player.vx = -config.walk_spd
		player.flip = 1
		dir_held = true
		if up_held then
			player.dir = 1
		else
			player.dir = 0
		end
	end
	-- right
	if btn(3) then
		player.vx = config.walk_spd
		player.flip = 0
		dir_held = true
		if up_held then
			player.dir = 1
		else
			player.dir = 0
		end
	end

	-- down + jump to do a slide
	if btn(1) then
		-- slide
		if btnp(4) then
			if player.vy == 0 and player.slide_timer == -1 then
				player.slide_timer = 10
				player.vx = config.slide_spd
				if player.flip == 1 then player.vx = -config.slide_spd end
				player.is_wlk = false
			end
		end
	else
		-- jump
		if btn(4) then
			if (player.coyote_timer > 0 or player.vy==0) and not player.is_jmp then
				player.vy = -config.jump_spd
				player.is_wlk = 0
				player.is_jmp = true
			end
		else
			if player.is_jmp and player.vy <= 0 then
				player.vy = 0
				player.is_jmp = false
			end
		end
	end

	if btnp(5) then
		player:spawnBullet()
	end

	if player.slide_timer == -1 then
		player.vx = math.max(-1.5, math.min(1.5, player.vx))
	end


	-- set flag if walking, clamp if not
	if math.abs(player.vx) < 0.01 then
		player.vx = 0
		player.is_wlk = 0
	else
		player.is_wlk = 1
	end

	if	solid(player.x+player.vx,player.y+player.vy) or
		solid(player.x+4+player.vx,player.y+player.vy) or
		solid(player.x+player.vx,player.y+4+player.vy) or
		solid(player.x+4+player.vx,player.y+4+player.vy) then
        player.vx = 0
    end

    if	solid(player.x,player.y+8+player.vy) or
		solid(player.x+7,player.y+8+player.vy) then
        player.vy = 0
    else
		-- gravity, terminal velocity
		player.vy = math.min(6.0, player.vy + 0.12)
		player.spr = player.j_spr
		if not player.is_jmp and player.coyote_timer == -1 then
			player.coyote_timer = config.coyote_time
		elseif player.coyote_timer == 0 then
			-- do nothing
		else
			player.coyote_timer = player.coyote_timer - 1
		end
    end


	player.x = player.x + player.vx
	player.y = player.y + player.vy


	if not dir_held and player.slide_timer == -1 then
		player.vx = player.vx * 0.8
	end

	-- ground fx
	if player.vy == 0 then
		-- do slidey stuff, otherwise walk
		if player.slide_timer > 0 then
			player.slide_timer = player.slide_timer - 1
		elseif player.slide_timer == 0 then
			player.vx = 0
			player.slide_timer = -1
		else
			if player.is_wlk == 1 then
				player.w_timer = player.w_timer + 1
				if player.w_timer > 5 then
					player.w_spr_idx = (player.w_spr_idx + 1) % 3 + 1
					player.spr = player.w_spr[player.w_spr_idx]
					player.w_timer = 0
				end
			else
				player.spr = 256
			end
		end
		player.coyote_timer = -1
	end

	-- bulletsch
	for key, bullet in ipairs(player.bullets) do
		if bullet.x < -8 or bullet.x > 248 then
			table.remove(player.bullets, key)
			goto bullet_dead
		end
		if bullet.y < -8 or bullet.y > 144 then
			table.remove(player.bullets, key)
			goto bullet_dead
		end
		bullet.x = bullet.x + bullet.vx
		bullet.y = bullet.y + bullet.vy
		::bullet_dead::
	end
end

function player:spawnBullet()
	local testspd = 5
	local bx, by = self.x + 4, self.y + 4
	local lvx, lvy, dist = 0, 0, testspd

	if self.flip == 1 then dist = -testspd end
	if self.dir == 0 then
		lvx = dist
	elseif self.dir == 1 then
		lvx = dist
		lvy = -math.abs(dist)
	elseif self.dir == 2 then
		lvy = -math.abs(dist)
	end

	-- correct diagonal movements
	if lvx * lvy ~= 0 then
		lvx = lvx * 0.707
		lvy = lvy * 0.707
	end

	table.insert(self.bullets, {
		x=bx, y=by, vx=lvx, vy=lvy,
	})
end

function player:draw()
	spr(player.spr, player.x, player.y, 0,1, player.flip,0,1,1)

	for key, bullet in ipairs(player.bullets) do
		circ(bullet.x, bullet.y, 1, 4)
	end
end

function TIC()

	cls(13)
	map()
	player:update()
	player:draw()
	debug:draw()
	t=t+1
end

-- <TILES>
-- 001:ccccccccddddddddeeeeeeeeffffffff88e99e888e9889e8e988889e88888888
-- 002:dce88edcdc9e8edcdc89eedcdc889edcdc88eedcdc8e9edcdce98edcdc988edc
-- 004:00000000f00f0f0f00f000ff00000000000000000000000f000000000000000f
-- 005:00000000e000ddeefe0deeffff0eef0fff0eff0f0f0ef0f0fe0ef0f00e0f0f00
-- 006:00000000f0fff0fe0f000fff0000000f0000000f000000f00000000f000000f0
-- 007:00000000000ddeefe0deeff0f0eef0f0f0eff0f0f0ef0f00e0ef0f00e0f0f000
-- 008:e0000000ef000000e0f00000ff000000f0000000fff00000feff00000fefffff
-- 009:000000f000000ff000000fe00000f0f0000f0f00f000f0f0000f0f00fff0ff00
-- 010:0000000008089189800000080000000880000009000809088000000800000008
-- 011:000000000000000000000000000000000000000000000088000800f000000080
-- 016:dceeeccdedeeeedced88899ced888ffded88888ded88888dfe88888efffffffe
-- 020:000000000000000000000000000000f0000f000f000000f00f0fff0f00000000
-- 021:ff0ef000fe0e0f00ff0ff000f00f00000f0fff00f00feff0f000feff00000000
-- 022:0000000f0000000f0000000f00000f0f00f000f000000f0ffffff0ff00000000
-- 023:f0ef0000e0e0f000f0ff000000f00000f0fff00000feff00000fefff00000000
-- 024:000000000ddeeff0deeff00feef0f000eff0f000ef0f0000ef0f0000f0f00000
-- 025:00000000fff0fe00000fffe000000ff000000ff00000f0f000000fe00000f0e0
-- 026:0000010980000008000800080000000800000000000000080000000000000000
-- 027:f888881000000080000000000008808000000000000000800000000000000080
-- 032:2232232233333333132321211021121102102101101010100100000000000000
-- 033:2232222323233332322123121012112101010210001001001000000000000000
-- 034:0423433331121022312301112301301023102120213211003110102102220202
-- 035:3223443321221022001000111020201020102020100000002100102102220202
-- 036:3332243322121210110000002010202010101010100010000222022220012020
-- 037:3334234022011114111123030103013202131022001132121201011320202220
-- 048:01111111142244441c44cccc1322333314334444132233331211222201111111
-- 049:1111111144444444cccccccc3333333344444444333333332222222211111111
-- 050:1111111044442241cccc44c13333223144443341333322312222112111111110
-- 051:13c332211444443113c332211444443113c332211444443113c3322114444431
-- </TILES>

-- <SPRITES>
-- 000:008558000085580008aaa80008aaaa8008a88a8008a80a8008aa8aa808880880
-- 001:008558000085580008aaa80008aaaa8008a88a808a800a808aa80aa888800880
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-- 003:008558000085580008aaa80008aaaa8008a88a8008aa8aa80888088000000000
-- </SPRITES>

-- <MAP>
-- 005:000000200000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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-- 012:000000011010101010101010101010101010101010101010101001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
-- </MAP>

-- <WAVES>
-- 000:00000000ffffffff00000000ffffffff
-- 001:0123456789abcdeffedcba9876543210
-- 002:0123456789abcdef0123456789abcdef
-- </WAVES>

-- <SFX>
-- 000:000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000304000000000
-- </SFX>

-- <TRACKS>
-- 000:100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
-- </TRACKS>

-- <PALETTE>
-- 000:1a1c2c5d275db13e53ef7d57ffcd75a7f07038b76425717929366f3b5dc941a6f673eff7f4f4f494b0c2566c86333c57
-- </PALETTE>