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example.odin
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package main
import "vendor:raylib"
import ldtk "../"
import "core:time"
import "core:math"
player: struct {
pos: raylib.Vector2,
vel: raylib.Vector2,
last_anim_change: time.Tick,
current_src_name: player_src_names,
frame: u32,
in_air: bool,
running: bool,
flip_x: bool,
}
tile :: struct {
src: raylib.Vector2,
dst: raylib.Vector2,
flip_x: bool,
flip_y: bool,
}
screen_width := 1280
screen_height := 720
tile_offset : raylib.Vector2;
tile_size := 32
tile_columns := -1
tile_rows := -1
collision_tiles: []u8
tile_data: []tile
player_src_names :: enum {
IDLE0,
IDLE1,
IDLE2,
IDLE3,
RUN0,
RUN1,
RUN2,
RUN3,
RUN4,
RUN5,
IN_AIR0,
IN_AIR1,
IN_AIR2,
}
player_srcs: [player_src_names]raylib.Rectangle
main :: proc() {
raylib.InitWindow(i32(screen_width), i32(screen_height), "Platt")
raylib.SetTargetFPS(60);
spritesheet := raylib.LoadTexture("12 Animated Character Template.png")
player_srcs[.IDLE0] = {24.0 - 32.0 / 2.0, 32.0 - 32.0 / 2.0, 32.0, 32.0}
player_srcs[.IDLE1] = {72.0 - 32.0 / 2.0, 32.0 - 32.0 / 2.0, 32.0, 32.0}
player_srcs[.IDLE2] = {120.0 - 32.0 / 2.0, 32.0 - 32.0 / 2.0, 32.0, 32.0}
player_srcs[.IDLE3] = {168.0 - 32.0 / 2.0, 32.0 - 32.0 / 2.0, 32.0, 32.0}
player_srcs[.RUN0] = {24.0 - 32.0 / 2.0, 128.0 - 32.0 / 2.0, 32.0, 32.0}
player_srcs[.RUN1] = {72.0 - 32.0 / 2.0, 128.0 - 32.0 / 2.0, 32.0, 32.0}
player_srcs[.RUN2] = {120.0 - 32.0 / 2.0, 128.0 - 32.0 / 2.0, 32.0, 32.0}
player_srcs[.RUN3] = {168.0 - 32.0 / 2.0, 128.0 - 32.0 / 2.0, 32.0, 32.0}
player_srcs[.RUN4] = {220.0 - 32.0 / 2.0, 128.0 - 32.0 / 2.0, 32.0, 32.0}
player_srcs[.RUN5] = {268.0 - 32.0 / 2.0, 128.0 - 32.0 / 2.0, 32.0, 32.0}
player_srcs[.IN_AIR0] = {120.0 - 32.0 / 2.0, 174.0 - 32.0 / 2.0, 32.0, 32.0}
player_srcs[.IN_AIR1] = {168.0 - 32.0 / 2.0, 172.0 - 32.0 / 2.0, 32.0, 32.0}
player_srcs[.IN_AIR2] = {220.0 - 32.0 / 2.0, 174.0 - 32.0 / 2.0, 32.0, 32.0}
tileset := raylib.LoadTexture("Cavernas_by_Adam_Saltsman.png")
if project, ok := ldtk.load_from_file("foo.ldtk", context.temp_allocator).?; ok {
for level in project.levels {
for layer in level.layer_instances {
switch layer.type {
case .IntGrid:
tile_columns = layer.c_width
tile_rows = layer.c_height
//tile_size = 720 / tile_rows
collision_tiles = make([]u8, tile_columns * tile_rows)
tile_offset.x = f32(layer.px_total_offset_x)
tile_offset.y = f32(layer.px_total_offset_y)
for val, idx in layer.int_grid_csv {
collision_tiles[idx] = u8(val)
}
tile_data = make([]tile, len(layer.auto_layer_tiles))
multiplier : f32 = f32(tile_size) / f32(layer.grid_size)
for val, idx in layer.auto_layer_tiles {
tile_data[idx].dst.x = f32(val.px.x) * multiplier
tile_data[idx].dst.y = f32(val.px.y) * multiplier
tile_data[idx].src.x = f32(val.src.x)
f := val.f
tile_data[idx].src.y = f32(val.src.y)
tile_data[idx].flip_x = bool(f & 1)
tile_data[idx].flip_y = bool(f & 2)
}
case .Entities:
case .Tiles:
case .AutoLayer:
}
}
}
// ...
}
if tile_columns == -1 || tile_rows == -1 {
return
}
player.pos.x = 100
player.pos.y = 300
player.in_air = true
dt : f32 = 1.0 / 60.0
for !raylib.WindowShouldClose() {
raylib.BeginDrawing()
raylib.ClearBackground(raylib.RAYWHITE)
jump_power :: 580.0
spd :: 50.0
if !player.in_air {
if raylib.IsKeyDown(.W) {
player.in_air = true
player.vel.y -= jump_power
}
}
player.running = false
if raylib.IsKeyDown(.A) {
player.vel.x -= spd
player.running = true
player.flip_x = true
}
if raylib.IsKeyDown(.D) {
player.vel.x += spd
player.running = true
player.flip_x = false
}
epsilon : f32 = 2.0
if player.vel.x < -epsilon || player.vel.x > epsilon {
player.vel.x *= 0.88
} else {
player.vel.x = 0.0
}
if time.tick_since(player.last_anim_change) > 80 * time.Millisecond {
player.last_anim_change = time.tick_now()
if (player.in_air) {
if player.vel.y > 0.0 {
player.frame = 2
} else if player.vel.y == 0.0 {
player.frame = 1
} else if player.vel.y < 0.0 {
player.frame = 0
}
} else {
if (player.running) {
player.frame = (player.frame + 1) % 6
} else {
player.frame = (player.frame + 1) % 4
}
}
}
if player.in_air {
player.current_src_name = player_src_names(u32(player_src_names.IN_AIR0) + (player.frame % 3))
} else {
if player.running {
player.current_src_name = player_src_names(u32(player_src_names.RUN0) + player.frame)
} else {
player.current_src_name = player_src_names(u32(player_src_names.IDLE0) + player.frame)
}
}
player.vel.y += 900 * dt
new_pos : raylib.Vector2 = player.pos + player.vel * dt
offset: raylib.Vector2
offset.x = f32(screen_width - (tile_size * tile_columns)) / 2.0
player_coll : raylib.Rectangle = {new_pos.x - 16.0, new_pos.y - 64.0, 32.0, 64.0}
player_center_row := int(math.round((new_pos.y - 32.0) / f32(tile_size)))
player_upper_row := int(math.round((new_pos.y - 64.0) / f32(tile_size)))
player_column := int(math.round(new_pos.x / f32(tile_size)))
for row := 0; row < tile_rows; row += 1 {
for column := 0; column < tile_columns; column += 1 {
collider := collision_tiles[row * tile_columns + column]
if collider != 0 {
coll : raylib.Rectangle = {f32(column * tile_size) + offset.x + tile_offset.x - f32(tile_size) / 2.0, f32(row * tile_size) + offset.y + tile_offset.y - f32(tile_size) / 2.0, f32(tile_size), f32(tile_size)}
raylib.DrawRectangleRec(coll, raylib.RED)
if raylib.CheckCollisionRecs(player_coll, coll) {
if player.in_air {
if row <= player_upper_row {
if player.vel.y < 0 {
player.vel.y = 0
new_pos.y = player.pos.y
}
}
}
if row > player_center_row {
if player.vel.y > 0 {
player.in_air = false
player.vel.y = 0
new_pos.y = player.pos.y
}
} else {
if column > player_column || column < player_column {
player.vel.x = 0
new_pos.x = player.pos.x
}
}
}
}
}
}
player.pos.x = new_pos.x
player.pos.y = new_pos.y
for val, idx in tile_data {
source_rect : raylib.Rectangle = {val.src.x, val.src.y, 8.0, 8.0}
if val.flip_x {
source_rect.width *= -1.0
}
if val.flip_y {
source_rect.height *= -1.0
}
dst_rect : raylib.Rectangle = {val.dst.x + offset.x + tile_offset.x, val.dst.y + offset.y + tile_offset.y, f32(tile_size), f32(tile_size)}
raylib.DrawTexturePro(tileset, source_rect, dst_rect, {f32(tile_size/2),f32(tile_size/2)}, 0, raylib.WHITE)
}
pos := player.pos
source_rect := player_srcs[player.current_src_name]
if player.flip_x {
source_rect.width *= -1.0
}
dst_rect : raylib.Rectangle = {pos.x, pos.y - 32.0, 64.0, 64.0}
raylib.DrawTexturePro(spritesheet, source_rect, dst_rect, {32.0,32.0}, 0, raylib.WHITE)
//raylib.DrawRectangleRec(player_coll, raylib.BLUE)
raylib.EndDrawing()
}
raylib.CloseWindow()
}