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-- Global state
win = require("window")
hc = require("party.hc.init")
ecs = require("ecs")
settings = require("settings")
color = require("color")
shim = require("shader_shim")
log = require("log")
MAX_LAMPS = 8
print("hc:", hc)
--Use a collider to decide what to render
x = {
world_e: ecs.Entity(1)
-- local offsets from the world
world_x: 0
world_y: 0
-- Have we selected an input type yet?
controller: {
text_size: 4
}
-- Level information
level: {
graphics:{}
entities:{}
graphic_world: hc.new(5)
physics_world: hc.new(1)
lamps: {}
lamps_rev: {}
}
sync_time: () ->
am.current_time!
}
x.level.collider = x.level.graphic_world\rectangle(-1,-1,2,2)
x.level.add_lamp = (lamp) -> --vector4, vec3 position, strength
shape = x.level.graphic_world\circle(lamp.x, lamp.y, lamp.w * 2)
x.level.lamps[#x.level.lamps+1] = {lamp, shape}
x.level.lamps_rev[shape] = #x.level.lamps
#x.level.lamps
x.level.move_lamp = (id,newx, newy) ->
oldlamp = x.level.lamps[id][1]
x.level.lamps[id][2]\moveTo(newx, newy)
x.level.lamps[id][1] = vec4(newx, newy, oldlamp.z, oldlamp.w)
x.level.remove_lap = (id) ->
lamp = table.remove(x.level.lamps,id)
x.level.lamps_rev[lamp[2]] = nil
x.level.graphic_world\remove(lamp[2])
x.level.lamps_on_screen = () ->
lamps = {}
i = 0
-- collider world is not alligned to the graphic world
x.level.collider\moveTo(x.world_x + 3, x.world_y + 3)
for shape,_ in pairs(x.level.graphic_world\collisions(x.level.collider))
index = x.level.lamps_rev[shape]
lamp = x.level.lamps[index]
table.insert(lamps, lamp[1])
i += i
if i > MAX_LAMPS
return lamps
lamps
x.fromscreen = (pos) ->
print("fromscreen pos is", pos)
-- convert creen pixel coords to world xy coords
localx = (pos.x * (win.width / win.height) * 4) / (win.width + 1)
localy = (pos.y * 1 * 4) / win.height
globalx = x.world_x + localx
globaly = x.world_y + localy
vec2(globalx, globaly)
x.level.on_land = (pos) ->
not (pos.x > 10 or pos.x < -10 or pos.y > 10 or pos.y < -10)
class PhysicsComponent extends ecs.Component
new: (name, properties, shape, args) =>
log.info("Created a physics component " .. shape .. " with " .. tostring(args), {"phys"})
assert(args, "Physcs Component must be passed args")
assert(type(shape) == "string" , "Shape must be a string, was " .. tostring(shape))
@node = am.group!
super(name, properties)
hc = x.level.physics_world
table.insert(args,1,hc)
print("Creating a physics component with", args)
@shape = hc[shape](unpack(args))
@shape.component = @
join: (entity) =>
super(entity)
@ent = entity
leave: () =>
super!
x.level.physics_world\remove(@shape)
collisions: () =>
x.level.physics_world\collisions(@shape)
class GraphicsComponent extends ecs.Component
new: (name, properties) =>
print("Got name", name, "and properties", properties)
@node = am.group!
--assert(properties and properties.node , "Failed to find node for graphics component")
super(name, properties)
--x.node\append(properties.node)
join: (entity) =>
buf_size = @buf_size!
print("Creating entity " .. entity.id .. " with graphic component with " .. buf_size .. " vertexes")
@geom_buffer = am.buffer(buf_size * 3 * 4)\view("vec3") -- 3 floats per vertex, 4 bytes per float
@norm_buffer = am.buffer(buf_size * 2 * 4)\view("vec2") -- 2 floats per uv, 4 bytes per float
@populate_buf(@geom_buffer, @norm_buffer)
aspect = win.width / win.height
s_mv = mat4(
1, 0, 0, 0,
0, aspect, 0, 0,
0, 0, 1, 0,
0, 0, 0, 4
)
binds = {
MV: s_mv
P: mat4(1)
land: @geom_buffer
landnormal: @norm_buffer
time: am.current_time!
atlas: require("world.sprites").rocks_normal.texture
streamer: 1
world_x: x.world_x
world_y: x.world_y
rot: 0
water: 0
}
for color, value in pairs(color.am_color)
binds[color] = value
for i = 1,8 do
binds["lamp" .. tostring(i)] = vec4(0)
@node\append(
shim.land\append(
am.depth_test("less")\append(
am.cull_face("front")\append(
am.bind(binds)\append(
am.draw("triangles")
)))))
print("graphic node created for",@,@node)
component = @
@node\action(() =>
bind = component.node("bind")
if component.action
component\action(bind)
bind.world_x = x.world_x
bind.world_y = x.world_y
--find the lamps in screen to render
lamps = x.level.lamps_on_screen!
--print("Found lamps:", lamps, "at",x.world_x, x.world_y)
for i = 1,8 do
if i <= #lamps
--print("Setting lamp",i,"to",lamps[i])
bind["lamp" .. tostring(i)] = lamps[i]
else
bind["lamp" .. tostring(i)] = vec4(0)
--bind.lamps = am.vec4_array(lamps)
--bind.nlamps = #lamps
--print(world.world_x, world.world_y)
--bind.lamp1 = vec4(math.sin(am.current_time!), 0, 0, math.cos(am.current_time! * 3) + math.pi)
-- magic numbers to center the player :/
bind.time = am.current_time! % 1000 -- loop back around so noise doesn't look wonky after a while
bind.streamer = settings.streamer
)
if @setup
@setup(@node)
print("Appending ", @node, " to the scene")
x.node\append(@node)
leave: () =>
x.node\remove(@node)
static: () =>
@@static
buf_size: () =>
error("Subclasses of GraphicsComponent must implement buffer size")
populate_buf: (geom_view, normal_view, offset) =>
error("Subclasses of GraphicsComponent must implement buffer populate method")
x.GraphicsComponent = GraphicsComponent
x.PhysicsComponent = PhysicsComponent
x
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