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Add csv parsing

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This commit is contained in:
sergeypdev 2025-04-25 11:37:45 +04:00
parent 91cd60b155
commit e1fa9734da
1 changed files with 70 additions and 24 deletions
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92
game/assets/assets.odin
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@ -1,6 +1,9 @@
package assets
import "core:bytes"
import "core:c"
import "core:encoding/csv"
import "core:io"
import "core:log"
import "core:math"
import lg "core:math/linalg"
@ -40,6 +43,10 @@ Loaded_Convex :: struct {
inertia_tensor: lg.Matrix3f32,
}
Loaded_Curve_2D :: struct {
points: [][2]f32,
}
destroy_loaded_bvh :: proc(loaded_bvh: Loaded_BVH) {
tracy.Zone()
@ -53,6 +60,7 @@ Asset_Manager :: struct {
textures: map[cstring]Loaded_Texture,
models: map[cstring]Loaded_Model,
bvhs: map[cstring]Loaded_BVH,
curves: map[cstring]Loaded_Curve_2D,
}
get_texture :: proc(assetman: ^Asset_Manager, path: cstring) -> rl.Texture2D {
@ -177,31 +185,69 @@ get_bvh :: proc(assetman: ^Asset_Manager, path: cstring) -> Loaded_BVH {
return assetman.bvhs[path]
}
Curve_2D :: struct {
points: [][2]f32,
// TODO: cache result
// Reads a two column comma separated csv file as a curve
get_curve_2d :: proc(assetman: ^Asset_Manager, path: string) -> (curve: Loaded_Curve_2D) {
data, err := os2.read_entire_file_from_path(path, context.temp_allocator)
if err != nil {
log.errorf("Failed to read curve: %s", path)
return
}
// Reads a two column comma separated csv file as a curve
// get_curve_2d :: proc(assetman: ^Asset_Manager, path: string) -> (curve: Curve_2D) {
// data, err := os2.read_entire_file_from_path(path, context.allocator)
// if err != nil {
// log.errorf("Failed to read curve: %s", path)
// return
// }
// defer delete(data)
//
// str := string(data)
// scan: scanner.Scanner
// scanner.init(&scan, str, path)
// scan.whitespace = scanner.Whitespace{' ', '\t', '\r'}
// scan.flags = scanner.Scan_Flags{.Scan_Ints, .Scan_Floats, .Scan_Idents}
//
// for tok := scanner.scan(&scan); tok != scanner.EOF; tok = scanner.scan(&scan) {
//
// }
//
// return
// }
bytes_reader: bytes.Reader
bytes.reader_init(&bytes_reader, data)
bytes_stream := bytes.reader_to_stream(&bytes_reader)
csv_reader: csv.Reader
csv.reader_init(&csv_reader, bytes_stream, context.temp_allocator)
tmp_result := make([dynamic][2]f32, context.temp_allocator)
skipped_header := false
for {
row, err := csv.read(&csv_reader, context.temp_allocator)
if err != nil {
if err != io.Error.EOF {
log.errorf("Failed to read curve %v", err)
}
break
}
if len(row) != 2 {
log.errorf("Curve expected 2 columns, got %v", len(row))
break
}
ok: bool
key: f64
val: f64
key, ok = strconv.parse_f64(row[0])
if !ok {
if skipped_header {
log.errorf("Curve expected numbers, got %s", row[0])
break
}
skipped_header = true
continue
}
val, ok = strconv.parse_f64(row[1])
if !ok {
if skipped_header {
log.errorf("Curve expected numbers, got %s", row[1])
break
}
skipped_header = true
continue
}
append(&tmp_result, [2]f32{f32(key), f32(val)})
}
curve.points = make([][2]f32, len(tmp_result), context.temp_allocator)
copy(curve.points, tmp_result[:])
return
}
get_convex :: proc(assetman: ^Asset_Manager, path: cstring) -> (result: Loaded_Convex) {
bytes, err := os2.read_entire_file(string(path), context.temp_allocator)