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update examples

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This commit is contained in:
wooshings
2026-10-18 11:00:01 -07:00
parent 32ec90f67e
commit 94197df1bd
2 changed files with 22 additions and 20 deletions
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examples/bouncing_balls.odin
+16 -16
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@@ -1,6 +1,5 @@
package main
import "core:fmt"
import "core:math/rand"
import "core:strconv"
import "core:strings"
@@ -9,7 +8,7 @@ import rl "vendor:raylib"
app: ecs.App
ball_count: int = 1000
ball_count: int = 10000
BallComponent :: struct {
radius: f32,
speed: f32,
@@ -27,18 +26,14 @@ main :: proc() {
}
setup_window :: proc() {
_, window := ecs.single(&ecs.Window)
window, _ := ecs.single(&ecs.Window)
window.background = rl.BLACK
}
spawn_balls :: proc() {
for i in 0 ..< ball_count {
ball := ecs.spawn_entity(&app)
ecs.add_component(
ball,
&Ball,
BallComponent{radius = 10, speed = rand.float32_range(4, 6)},
)
ecs.add_component(ball, &Ball, BallComponent{radius = 5, speed = rand.float32_range(4, 6)})
ecs.add_component(
ball,
&ecs.Transform,
@@ -51,10 +46,12 @@ spawn_balls :: proc() {
}
update_balls :: proc() {
_, window := ecs.single(&ecs.Window)
window, _ := ecs.single(&ecs.Window)
for entity, ball in ecs.slice(&Ball) {
transform := ecs.get_component(entity, &ecs.Transform)
balls := ecs.slice(&Ball)
entities := ecs.slice_entity(&Ball)
for ball, i in balls {
transform := ecs.get_component(entities[i], &ecs.Transform)
pos := transform.translation
if pos.x <= 0 || pos.x >= f32(window.width) || pos.y <= 0 || pos.y >= f32(window.height) {
@@ -63,13 +60,14 @@ update_balls :: proc() {
dir := rl.Vector2Rotate(rl.Vector2{0, ball.speed}, transform.rotation)
transform.translation += dir
fmt.println(transform.rotation)
}
}
draw_balls :: proc() {
for entity, ball in ecs.slice(&Ball) {
transform := ecs.get_component(entity, &ecs.Transform)
balls := ecs.slice(&Ball)
entities := ecs.slice_entity(&Ball)
for ball, i in balls {
transform := ecs.get_component(entities[i], &ecs.Transform)
rl.DrawCircle(
i32(transform.translation.x),
i32(transform.translation.y),
@@ -80,7 +78,9 @@ draw_balls :: proc() {
}
show_framerate :: proc() {
buf: [19]byte
framerate := strconv.write_int(buf[:], i64(1 / rl.GetFrameTime()), 10)
fps_buf: [19]byte
framerate := strconv.write_int(fps_buf[:], i64(1 / rl.GetFrameTime()), 10)
rl.DrawText(strings.clone_to_cstring(framerate), 0, 0, 24, rl.WHITE)
rl.DrawText(" fps", 0, 0, 24, rl.WHITE)
rl.DrawText("10000 balls", 0, 24, 24, rl.WHITE)
}