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starting camera/star work

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Jonathan Hirz 2019-02-02 17:43:30 -08:00
parent df976707ca
commit 79fd47c342
4 changed files with 40 additions and 53 deletions
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86
game.wren
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@ -3,7 +3,7 @@ import "luxe: assets" for Assets
import "luxe: input" for Input, Key
import "luxe: world" for World, Entity, Transform, Sprite, Values, Tags, Camera
import "luxe: math" for Math
import "luxe: draw" for Draw
import "luxe: draw" for Draw, PathStyle
import "luxe: io" for IO
import "random" for Random
// import "luxe: array" for Lists
@ -22,14 +22,14 @@ class game is Game {
// game vars
// camera
_camera_scale = 1.5
_camera_scale = 1
// starfield
_star_scale = 2
_stars = []
_stars2 = []
// player ship
_input_vec = []
_ship_rotation = 0
_ship_speed = 40
_ship_acceleration_x = 0
@ -41,8 +41,9 @@ class game is Game {
Camera.ortho(app.camera, 0, 0, app.width / _camera_scale, app.height / _camera_scale, -5, 5)
create_ship()
create_asteroid(5, 10)
create_startracker()
draw_starfield_2()
draw_starfield()
Transform.set_pos(app.camera, Transform.get_pos_x(_ship) - (app.width / 2 / _camera_scale), Transform.get_pos_y(_ship) - (app.height / 2 / _camera_scale))
// NOTES
@ -78,6 +79,16 @@ class game is Game {
} //create_ship
create_asteroid(x, y) {
_asteroid = Entity.create(app.world, "asteroid")
Transform.create(_asteroid)
var asteroid_mat = Assets.material("material/asteroid")
Sprite.create(_asteroid, asteroid_mat, 32, 32)
Transform.set_pos(_asteroid, x, y)
} //create_asteroid
create_startracker() {
_star_tracker = Entity.create(app.world, "star_tracker")
@ -86,57 +97,26 @@ class game is Game {
} //create_startracker
// draw_starfield() {
draw_starfield() {
// //todo: understand this starfield, expand it, make it move.
// //todo: for now, just generate a very large starfield. Do something at the "edge of space"]
// var rng = Random.new(25)
// var ctx = Draw.create(World.render_set(app.world))
// var color = [1,1,1,1]
// for(i in 0 ... 100000) {
// var x = rng.int(-app.width / _star_scale * 10, app.width / _star_scale * 10)
// var y = rng.int(-app.height / _star_scale * 10, app.height / _star_scale * 10)
// var z = -1
// var w = rng.int(1, 4)
// // var h = rng.int(1, 3)
// var h = w
// var a = 0
// color.a = 0.1 * w
// Draw.quad(ctx, x, y, z, w, h, a, color)
// }
// Draw.commit(ctx)
// } //draw_starfield
draw_starfield_2() {
//try to do this again, making sprites/entities for each star, and attach to player ship transform
//Transform.set_pos(x, y, -1)
var rng = Random.new()
var number_of_stars = 1000
var star_spread = 1000
for(i in 0 ... 1000) {
for(i in 0...number_of_stars) {
var randomness = rng.float()
var randomness_x = rng.float()
var randomness_y = rng.float()
_star = Entity.create(app.world, "star")
Transform.create(_star)
Transform.set_pos(_star, rng.int(-star_spread, star_spread), rng.int(-star_spread, star_spread), -1)
Transform.set_pos(_star, (star_spread * randomness_x) - (star_spread / 2), (star_spread * randomness_y) - (star_spread / 2), -1)
var star_mat = Assets.material("material/star")
Sprite.create(_star, star_mat, 8, 8)
Sprite.create(_star, star_mat, 8 * randomness, 8 * randomness)
Sprite.set_alpha(_star, randomness * 0.8)
Transform.link(_star, _star_tracker)
_stars.add(_star)
}
for(i in 0 ... 1000) {
_star = Entity.create(app.world, "star")
Transform.create(_star)
Transform.set_pos(_star, rng.int(-star_spread, star_spread), rng.int(-star_spread, star_spread), -1)
var star_mat = Assets.material("material/star")
Sprite.create(_star, star_mat, 4, 4)
Transform.link(_star, _star_tracker)
_stars2.add(_star)
}
} //draw_starfield_2
}
//////////////
// UPDATERS //
@ -163,7 +143,6 @@ class game is Game {
// move ship
Transform.translate(_ship, _ship_velocity_x, _ship_velocity_y)
// System.print("[%(Transform.get_pos_x(_ship)), %(Transform.get_pos_y(_ship))]")
} //tick_ship
@ -183,14 +162,15 @@ class game is Game {
tick_starfield(delta) {
Transform.set_pos(_star_tracker, Transform.get_pos_x(_ship), Transform.get_pos_y(_ship), Transform.get_pos_z(_ship))
Transform.set_pos(_star_tracker, Transform.get_pos_x(app.camera), Transform.get_pos_y(app.camera), -1)
for(star in _stars) {
Transform.set_pos_x(star, Transform.get_pos_x(star) + -_ship_velocity_x)
Transform.set_pos_y(star, Transform.get_pos_y(star) + -_ship_velocity_y)
}
for(star in _stars2) {
Transform.set_pos_x(star, Transform.get_pos_x(star) + -_ship_velocity_x * 0.9)
Transform.set_pos_y(star, Transform.get_pos_y(star) + -_ship_velocity_y * 0.9)
Transform.set_pos_x(star, Transform.get_pos_x(star) + -_ship_velocity_x * (Sprite.get_alpha(star) * 0.5))
Transform.set_pos_y(star, Transform.get_pos_y(star) + -_ship_velocity_y * (Sprite.get_alpha(star) * 0.5))
//x
if(Transform.get_pos_x(star) > Transform.get_pos_x(_star_tracker) + (app.width / 2 / _camera_scale)) {
// Transform.set_pos_x(star, Transform.get_pos_x(_star_tracker) - (app.width / 2 / _camera_scale))
}
}
} //tick_starfield

3
image/asteroid.image.lx Normal file
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@ -0,0 +1,3 @@
image = {
source = "image/asteroid.png"
}

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image/asteroid.png Normal file
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4
material/asteroid.material Normal file
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@ -0,0 +1,4 @@
material = {
basis = "luxe: material_basis/sprite_pixelated"
samplers = { 0 = "image/asteroid" }
}