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Diffstat (limited to 'deps/raylib/examples/models/models_bone_socket.c')
| -rw-r--r-- | deps/raylib/examples/models/models_bone_socket.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/deps/raylib/examples/models/models_bone_socket.c b/deps/raylib/examples/models/models_bone_socket.c new file mode 100644 index 0000000..66f952e --- /dev/null +++ b/deps/raylib/examples/models/models_bone_socket.c @@ -0,0 +1,177 @@ +/******************************************************************************************* +* +* raylib [core] example - Using bones as socket for calculating the positioning of something +* +* Example originally created with raylib 4.5, last time updated with raylib 4.5 +* +* Example contributed by iP (@ipzaur) and reviewed by Ramon Santamaria (@raysan5) +* +* Example licensed under an unmodified zlib/libpng license, which is an OSI-certified, +* BSD-like license that allows static linking with closed source software +* +* Copyright (c) 2024 iP (@ipzaur) +* +********************************************************************************************/ + +#include "raylib.h" + +#include "raymath.h" + +#define BONE_SOCKETS 3 +#define BONE_SOCKET_HAT 0 +#define BONE_SOCKET_HAND_R 1 +#define BONE_SOCKET_HAND_L 2 + +//------------------------------------------------------------------------------------ +// Program main entry point +//------------------------------------------------------------------------------------ +int main(void) +{ + // Initialization + //-------------------------------------------------------------------------------------- + const int screenWidth = 800; + const int screenHeight = 450; + + InitWindow(screenWidth, screenHeight, "raylib [models] example - bone socket"); + + // Define the camera to look into our 3d world + Camera camera = { 0 }; + camera.position = (Vector3){ 5.0f, 5.0f, 5.0f }; // Camera position + camera.target = (Vector3){ 0.0f, 2.0f, 0.0f }; // Camera looking at point + camera.up = (Vector3){ 0.0f, 1.0f, 0.0f }; // Camera up vector (rotation towards target) + camera.fovy = 45.0f; // Camera field-of-view Y + camera.projection = CAMERA_PERSPECTIVE; // Camera projection type + + // Load gltf model + Model characterModel = LoadModel("resources/models/gltf/greenman.glb"); // Load character model + Model equipModel[BONE_SOCKETS] = { + LoadModel("resources/models/gltf/greenman_hat.glb"), // Index for the hat model is the same as BONE_SOCKET_HAT + LoadModel("resources/models/gltf/greenman_sword.glb"), // Index for the sword model is the same as BONE_SOCKET_HAND_R + LoadModel("resources/models/gltf/greenman_shield.glb") // Index for the shield model is the same as BONE_SOCKET_HAND_L + }; + + bool showEquip[3] = { true, true, true }; // Toggle on/off equip + + // Load gltf model animations + int animsCount = 0; + unsigned int animIndex = 0; + unsigned int animCurrentFrame = 0; + ModelAnimation *modelAnimations = LoadModelAnimations("resources/models/gltf/greenman.glb", &animsCount); + + // indices of bones for sockets + int boneSocketIndex[BONE_SOCKETS] = { -1, -1, -1 }; + + // search bones for sockets + for (int i = 0; i < characterModel.boneCount; i++) + { + if (TextIsEqual(characterModel.bones[i].name, "socket_hat")) + { + boneSocketIndex[BONE_SOCKET_HAT] = i; + continue; + } + + if (TextIsEqual(characterModel.bones[i].name, "socket_hand_R")) + { + boneSocketIndex[BONE_SOCKET_HAND_R] = i; + continue; + } + + if (TextIsEqual(characterModel.bones[i].name, "socket_hand_L")) + { + boneSocketIndex[BONE_SOCKET_HAND_L] = i; + continue; + } + } + + Vector3 position = { 0.0f, 0.0f, 0.0f }; // Set model position + unsigned short angle = 0; // Set angle for rotate character + + DisableCursor(); // Limit cursor to relative movement inside the window + + SetTargetFPS(60); // Set our game to run at 60 frames-per-second + //-------------------------------------------------------------------------------------- + + // Main game loop + while (!WindowShouldClose()) // Detect window close button or ESC key + { + // Update + //---------------------------------------------------------------------------------- + UpdateCamera(&camera, CAMERA_THIRD_PERSON); + + // Rotate character + if (IsKeyDown(KEY_F)) angle = (angle + 1)%360; + else if (IsKeyDown(KEY_H)) angle = (360 + angle - 1)%360; + + // Select current animation + if (IsKeyPressed(KEY_T)) animIndex = (animIndex + 1)%animsCount; + else if (IsKeyPressed(KEY_G)) animIndex = (animIndex + animsCount - 1)%animsCount; + + // Toggle shown of equip + if (IsKeyPressed(KEY_ONE)) showEquip[BONE_SOCKET_HAT] = !showEquip[BONE_SOCKET_HAT]; + if (IsKeyPressed(KEY_TWO)) showEquip[BONE_SOCKET_HAND_R] = !showEquip[BONE_SOCKET_HAND_R]; + if (IsKeyPressed(KEY_THREE)) showEquip[BONE_SOCKET_HAND_L] = !showEquip[BONE_SOCKET_HAND_L]; + + // Update model animation + ModelAnimation anim = modelAnimations[animIndex]; + animCurrentFrame = (animCurrentFrame + 1)%anim.frameCount; + UpdateModelAnimation(characterModel, anim, animCurrentFrame); + //---------------------------------------------------------------------------------- + + // Draw + //---------------------------------------------------------------------------------- + BeginDrawing(); + + ClearBackground(RAYWHITE); + + BeginMode3D(camera); + // Draw character + Quaternion characterRotate = QuaternionFromAxisAngle((Vector3){ 0.0f, 1.0f, 0.0f }, angle*DEG2RAD); + characterModel.transform = MatrixMultiply(QuaternionToMatrix(characterRotate), MatrixTranslate(position.x, position.y, position.z)); + UpdateModelAnimation(characterModel, anim, animCurrentFrame); + DrawMesh(characterModel.meshes[0], characterModel.materials[1], characterModel.transform); + + // Draw equipments (hat, sword, shield) + for (int i = 0; i < BONE_SOCKETS; i++) + { + if (!showEquip[i]) continue; + + Transform *transform = &anim.framePoses[animCurrentFrame][boneSocketIndex[i]]; + Quaternion inRotation = characterModel.bindPose[boneSocketIndex[i]].rotation; + Quaternion outRotation = transform->rotation; + + // Calculate socket rotation (angle between bone in initial pose and same bone in current animation frame) + Quaternion rotate = QuaternionMultiply(outRotation, QuaternionInvert(inRotation)); + Matrix matrixTransform = QuaternionToMatrix(rotate); + // Translate socket to its position in the current animation + matrixTransform = MatrixMultiply(matrixTransform, MatrixTranslate(transform->translation.x, transform->translation.y, transform->translation.z)); + // Transform the socket using the transform of the character (angle and translate) + matrixTransform = MatrixMultiply(matrixTransform, characterModel.transform); + + // Draw mesh at socket position with socket angle rotation + DrawMesh(equipModel[i].meshes[0], equipModel[i].materials[1], matrixTransform); + } + + DrawGrid(10, 1.0f); + EndMode3D(); + + DrawText("Use the T/G to switch animation", 10, 10, 20, GRAY); + DrawText("Use the F/H to rotate character left/right", 10, 35, 20, GRAY); + DrawText("Use the 1,2,3 to toggle shown of hat, sword and shield", 10, 60, 20, GRAY); + + EndDrawing(); + //---------------------------------------------------------------------------------- + } + + // De-Initialization + //-------------------------------------------------------------------------------------- + UnloadModelAnimations(modelAnimations, animsCount); + UnloadModel(characterModel); // Unload character model and meshes/material + + // Unload equipment model and meshes/material + for (int i = 0; i < BONE_SOCKETS; i++) UnloadModel(equipModel[i]); + + CloseWindow(); // Close window and OpenGL context + //-------------------------------------------------------------------------------------- + + return 0; +}
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