Texture loading, alpha-discard shader, dummy torches

run.sh

@@ -0,0 +1,3 @@
+!#/bin/bash
+
+odin run src

src/main.odin

@@ -9,7 +9,6 @@ Entity :: struct {
 	position : Vec3,
 	velocity : Vec3,
 	size : Vec3,
-	update : proc(entity: ^Entity, delta: f32),
 }
 
 PAL_INT :: [6]u32 {
@@ -23,6 +22,9 @@ PAL_INT :: [6]u32 {
 
 PAL := [6]rl.Color{}
 
+CAMERA : ^rl.Camera3D
+TEXTURES : Textures
+
 main :: proc() {
 	for v, i in PAL_INT {
 		PAL[i] = rl.GetColor(v)
@@ -30,6 +32,11 @@ main :: proc() {
 
 	rl.InitWindow(800, 400, "By The Fire")
 	rl.SetTargetFPS(60)
+
+	TEXTURES = load_textures()
+	defer unload_textures(&TEXTURES)
+
+	discard_shader = rl.LoadShaderFromMemory(nil, alpha_discard)
 	
 	img := rl.GenImageChecked(64, 64, 8, 8, PAL[1], PAL[2])
 	defer rl.UnloadImage(img)
@@ -41,27 +48,65 @@ main :: proc() {
 	defer rl.UnloadMesh(plane)
 	mat := rl.LoadMaterialDefault()
 	rl.SetMaterialTexture(&mat, rl.MaterialMapIndex.ALBEDO, tex)
-
+	player_load_resources()
+	defer player_unload_resources()
 	player := player_create()
+	CAMERA = &(player.camera)
 
 	rl.DisableCursor()
 
+	torches := [10]Torch{}
+	for &v, i in torches {
+		torches[i] = Torch{position = Vec3{f32(i) * 2, 2, 0}}
+	}
+
 	for !rl.WindowShouldClose() {
 		using rl 
 		player_update(&player, GetFrameTime())
 
 		BeginDrawing()
 		BeginMode3D(player.camera)
+			BeginShaderMode(discard_shader)
 
 			ClearBackground(PAL[0])
 			rlPushMatrix()
 			rlRotatef(45, 0, 1, 0)
 			DrawMesh(plane, mat, rl.Matrix(1))
 			rlPopMatrix()
-			
+
 			player_draw(&player)
+			for &v in torches {
+				torch_draw(&v)
+			}
+			
+
+			EndShaderMode()
 
 		EndMode3D()
 		EndDrawing()
 	}
 }
+
+discard_shader : rl.Shader
+
+alpha_discard :: `
+#version 330
+
+// Input vertex attributes (from vertex shader)
+in vec2 fragTexCoord;
+in vec4 fragColor;
+
+// Input uniform values
+uniform sampler2D texture0;
+uniform vec4 colDiffuse;
+
+// Output fragment color
+out vec4 finalColor;
+
+void main()
+{
+    vec4 texelColor = texture(texture0, fragTexCoord);
+    if (texelColor.a == 0.0) discard;
+    finalColor = texelColor * fragColor * colDiffuse;
+}
+`

src/player.odin

@@ -1,6 +1,7 @@
 package main
 
 import "core:math"
+import "core:fmt"
 import rl "vendor:raylib"
 
 Player :: struct {
@@ -14,6 +15,27 @@ Player :: struct {
 	camera: rl.Camera3D,
 }
 
+player_sword_tex : rl.Texture 
+player_sword_mesh : rl.Mesh
+player_sword_mat : rl.Material
+
+player_load_resources :: proc() {
+	player_sword_tex = TEXTURES["sword.png"] // rl.LoadTexture("sword.png")
+	fmt.println(TEXTURES)
+	fmt.println(player_sword_tex)
+	rl.SetTextureFilter(player_sword_tex, rl.TextureFilter.POINT)
+	player_sword_mesh = rl.GenMeshPlane(1.5, 3.6, 1, 1)
+	player_sword_mat = rl.LoadMaterialDefault()
+	player_sword_mat.shader = discard_shader
+	rl.SetMaterialTexture(&player_sword_mat, rl.MaterialMapIndex.ALBEDO, player_sword_tex)
+}
+
+player_unload_resources :: proc() {
+	rl.UnloadMaterial(player_sword_mat)
+	//rl.UnloadTexture(player_sword_tex)
+	rl.UnloadMesh(player_sword_mesh)
+}
+
 player_create :: proc() -> Player {
 	return Player {
 		size = {0.5, 2, 0.5},
@@ -56,7 +78,9 @@ player_update :: proc(using player: ^Player, delta: f32) {
 	velocity.xz = Vector3MoveTowards(velocity, motion * 100, 100 * delta).xz
 	position += velocity * delta
 
-	bob_position = Vec3{math.sin_f32(f32(bob_timer * math.PI * 2 + math.PI/4)), math.sin_f32(f32(bob_timer*math.PI * 4)), 0} * bob_factor * 0.3
+
+	//bob_position = Vec3{math.sin_f32(f32(bob_timer * math.PI * 2 + math.PI/4)), math.sin_f32(f32(bob_timer*math.PI * 4)), 0} * bob_factor * 0.3
+	bob_position = Vec3{0, math.sin_f32(f32(bob_timer*math.PI * 4)), 0} * bob_factor * 0.3
 	bob_position = Vector3RotateByAxisAngle(bob_position, Vec3{0,1,0}, direction)
 
 	camera.position = position + cameraOffset + bob_position
@@ -73,16 +97,19 @@ player_draw :: proc(using player: ^Player) {
 
 
 	rlPushMatrix()
-	offset := position + cameraOffset + bob_position
+	offset := position + cameraOffset + (bob_position / 2)
 	rlTranslatef(offset.x, offset.y, offset.z)
 	rlRotatef(math.to_degrees(player.direction), 0, 1, 0)
 	rlRotatef(math.to_degrees(-player.yaw), 1, 0, 0)
 	rlTranslatef(-1, -0.3, 1)
-	rlScalef(0.5, 0.5, 0.5)
-	DrawCube({0, 0, 0}, 1,1,1, PAL[4])
-	rlTranslatef(0, 0, 1)
-	rlScalef(0.4, 0.4, 1)
-	DrawCube({0, 0, 0}, 1,1,1, PAL[4])
+	rlTranslatef(math.sin_f32(f32(bob_timer * math.PI * 2 + math.PI/4)) * bob_factor * 0.3, 0, 0)
+	rlRotatef(-90, 1, 0, 0)
+	rlRotatef(-90, 0, 0, 1)
+	rlRotatef(210, 0, 1, 0)
+	rlScalef(0.3, 0.3, 0.3)
+	DrawMesh(player_sword_mesh, player_sword_mat, rl.Matrix(1))
+	// DrawCube({0, 0, 0}, 1,1,1, PAL[4])
+	// DrawCube({0, 0, 0}, 1,1,1, PAL[4])
 
 	rlPopMatrix()
 }

src/resloader.odin

@@ -0,0 +1,28 @@
+package main
+
+import rl "vendor:raylib" 
+import "core:slice"
+import "core:path/filepath"
+
+Textures :: map[string]rl.Texture
+tex_filepaths : rl.FilePathList
+
+load_textures :: proc() -> Textures {
+	result : Textures = make(map[string]rl.Texture)	
+
+	tex_filepaths := rl.LoadDirectoryFiles("./assets")
+
+	for i : u32 = 0; i < tex_filepaths.count; i += 1 {
+		item := tex_filepaths.paths[i]
+		name := filepath.base(string(item))
+		result[name] = rl.LoadTexture(item)
+	}
+	return result
+}
+
+unload_textures :: proc(textures: ^Textures) {
+	for i, v in textures {
+		rl.UnloadTexture(v)
+	}
+	rl.UnloadDirectoryFiles(tex_filepaths)
+}

src/torch.odin

@@ -0,0 +1,14 @@
+package main
+
+import rl "vendor:raylib"
+
+Torch :: struct {
+	using entity: Entity,
+}
+
+torch_texture : rl.Texture
+
+
+torch_draw :: proc(torch: ^Torch) {
+	rl.DrawBillboard(CAMERA^, TEXTURES["torch.png"], torch.position, 4, rl.WHITE)
+}