thermokarst/raycaster-demo
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collision

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This commit is contained in:
Matthew Ryan Dillon 2024-12-29 21:36:03 -05:00
parent 36f0188f0f
commit f963cd0aca
1 changed files with 37 additions and 7 deletions
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36
main.lua
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@ -8,12 +8,13 @@ function love.load()
love.window.setMode(1024, 512) love.window.setMode(1024, 512)
player = {} player = {}
player["x"] = 300 player["x"] = 100
player["y"] = 300 player["y"] = 110
player["size"] = 8 player["size"] = 8
player["angle"] = 0 player["angle"] = -math.pi / 2
player["dx"] = math.cos(player.angle) * 5 player["dx"] = math.cos(player.angle) * 5
player["dy"] = math.sin(player.angle) * 5 player["dy"] = math.sin(player.angle) * 5
player["offset"] = 20
map = {} map = {}
map["x"] = 8 map["x"] = 8
@ -45,14 +46,42 @@ function love.update()
player.dx = math.cos(player.angle) * 5 player.dx = math.cos(player.angle) * 5
player.dy = math.sin(player.angle) * 5 player.dy = math.sin(player.angle) * 5
end end
local xo = 0
if player.dx < 0 then xo = -player.offset else xo = player.offset end
local yo = 0
if player.dy < 0 then yo = -player.offset else yo = player.offset end
local ipx = math.ceil(player.x / map.size)
local ipx_add_xo = math.ceil((player.x + xo) / map.size)
local ipx_sub_xo = math.ceil((player.x - xo) / map.size)
local ipy = math.ceil(player.y / map.size)
local ipy_add_yo = math.ceil((player.y + yo) / map.size)
local ipy_sub_yo = math.ceil((player.y - yo) / map.size)
local pos1 = (ipy - 1)*map.x + ipx_add_xo
local pos2 = (ipy_add_yo - 1)*map.x + ipx
if love.keyboard.isDown("w") then if love.keyboard.isDown("w") then
if map.map[pos1] == 0 then
player.x = player.x + player.dx player.x = player.x + player.dx
end
if map.map[pos2] == 0 then
player.y = player.y + player.dy player.y = player.y + player.dy
end end
end
local pos3 = (ipy - 1)*map.x + ipx_sub_xo
local pos4 = (ipy_sub_yo - 1)*map.x + ipx
if love.keyboard.isDown("s") then if love.keyboard.isDown("s") then
if map.map[pos3] == 0 then
player.x = player.x - player.dx player.x = player.x - player.dx
end
if map.map[pos4] == 0 then
player.y = player.y - player.dy player.y = player.y - player.dy
end end
end
end end
function love.draw() function love.draw()
@ -210,6 +239,7 @@ function drawRays3D()
love.graphics.setColor(0.7, 0, 0) love.graphics.setColor(0.7, 0, 0)
end end
love.graphics.setLineWidth(1)
love.graphics.line( love.graphics.line(
player.x, player.y, player.x, player.y,
ray.x, ray.y ray.x, ray.y