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feat: initialize game world

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zhenyan121
2026-03-05 19:48:15 +08:00
parent 9fe1eaec24
commit f56e5aaa51
1 changed files with 105 additions and 54 deletions
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159
src/main.cpp
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@@ -17,7 +17,9 @@
constexpr int numVAOs = 1; constexpr int numVAOs = 1;
constexpr int numVBOs = 3; constexpr int numVBOs = 3;
constexpr int WORLD_SIZE_X = 32;
constexpr int WORLD_SIZE_Z = 32;
bool blockPresent[WORLD_SIZE_X][WORLD_SIZE_Z] = {false};
GLuint renderingProgram; GLuint renderingProgram;
GLuint vao[numVAOs]; GLuint vao[numVAOs];
GLuint vbo[numVBOs]; GLuint vbo[numVBOs];
@@ -31,52 +33,52 @@ glm::mat4 pMat, vMat, mMat, mvMat;
float inc = 0.01f; float inc = 0.01f;
float tf = 0.0f; float tf = 0.0f;
glm::mat4 tMat, rMat, sMat; glm::mat4 tMat, rMat, sMat;
std::vector<GLuint> grass_block_texture(6);
void setupVertices(void) { void setupVertices(void) {
float verticesPos[108] = { float verticesPos[108] = {
// ===== 后面 (z = -1) =====
-1.0f, -1.0f, -1.0f, // 左下
1.0f, -1.0f, -1.0f, // 右下
1.0f, 1.0f, -1.0f, // 右上
1.0f, 1.0f, -1.0f, // 右上
-1.0f, 1.0f, -1.0f, // 左上
-1.0f, -1.0f, -1.0f, // 左下
// ===== 前面 (z = +1) ===== // ===== 前面 (z = +1) =====
-1.0f, -1.0f, 1.0f, // 左下 -0.5f, -0.5f, 0.5f, // 左下
-1.0f, 1.0f, 1.0f, // 左上 -0.5f, 0.5f, 0.5f, // 左上
1.0f, 1.0f, 1.0f, // 右上 0.5f, 0.5f, 0.5f, // 右上
1.0f, 1.0f, 1.0f, // 右上 0.5f, 0.5f, 0.5f, // 右上
1.0f, -1.0f, 1.0f, // 右下 0.5f, -0.5f, 0.5f, // 右下
-1.0f, -1.0f, 1.0f, // 左下 -0.5f, -0.5f, 0.5f, // 左下
// ===== 左面 (x = -1) =====
-1.0f, -1.0f, -1.0f, // 后下
-1.0f, -1.0f, 1.0f, // 前下
-1.0f, 1.0f, 1.0f, // 前上
-1.0f, 1.0f, 1.0f, // 前上
-1.0f, 1.0f, -1.0f, // 后上
-1.0f, -1.0f, -1.0f, // 后下
// ===== 右面 (x = +1) ===== // ===== 右面 (x = +1) =====
1.0f, -1.0f, 1.0f, // 前下 0.5f, -0.5f, 0.5f, // 前下
1.0f, -1.0f, -1.0f, // 后下 0.5f, -0.5f, -0.5f, // 后下
1.0f, 1.0f, -1.0f, // 后上 0.5f, 0.5f, -0.5f, // 后上
1.0f, 1.0f, -1.0f, // 后上 0.5f, 0.5f, -0.5f, // 后上
1.0f, 1.0f, 1.0f, // 前上 0.5f, 0.5f, 0.5f, // 前上
1.0f, -1.0f, 1.0f, // 前下 0.5f, -0.5f, 0.5f, // 前下
// ===== 后面 (z = -1) =====
-0.5f, -0.5f, -0.5f, // 左下
0.5f, -0.5f, -0.5f, // 右下
0.5f, 0.5f, -0.5f, // 右上
0.5f, 0.5f, -0.5f, // 右上
-0.5f, 0.5f, -0.5f, // 左上
-0.5f, -0.5f, -0.5f, // 左下
// ===== 左面 (x = -1) =====
-0.5f, -0.5f, -0.5f, // 后下
-0.5f, -0.5f, 0.5f, // 前下
-0.5f, 0.5f, 0.5f, // 前上
-0.5f, 0.5f, 0.5f, // 前上
-0.5f, 0.5f, -0.5f, // 后上
-0.5f, -0.5f, -0.5f, // 后下
// ===== 上面 (y = +1) ===== // ===== 上面 (y = +1) =====
-1.0f, 1.0f, -1.0f, // 后左 -0.5f, 0.5f, -0.5f, // 后左
1.0f, 1.0f, -1.0f, // 后右 0.5f, 0.5f, -0.5f, // 后右
1.0f, 1.0f, 1.0f, // 前右 0.5f, 0.5f, 0.5f, // 前右
1.0f, 1.0f, 1.0f, // 前右 0.5f, 0.5f, 0.5f, // 前右
-1.0f, 1.0f, 1.0f, // 前左 -0.5f, 0.5f, 0.5f, // 前左
-1.0f, 1.0f, -1.0f, // 后左 -0.5f, 0.5f, -0.5f, // 后左
// ===== 下面 (y = -1) ===== // ===== 下面 (y = -1) =====
-1.0f, -1.0f, 1.0f, // 前左 -0.5f, -0.5f, 0.5f, // 前左
1.0f, -1.0f, 1.0f, // 前右 0.5f, -0.5f, 0.5f, // 前右
1.0f, -1.0f, -1.0f, // 后右 0.5f, -0.5f, -0.5f, // 后右
1.0f, -1.0f, -1.0f, // 后右 0.5f, -0.5f, -0.5f, // 后右
-1.0f, -1.0f, -1.0f, // 后左 -0.5f, -0.5f, -0.5f, // 后左
-1.0f, -1.0f, 1.0f // 前左 -0.5f, -0.5f, 0.5f // 前左
}; };
float tex_coords[72] { float tex_coords[72] {
@@ -166,7 +168,23 @@ void init(GLFWwindow* window) {
glViewport(0, 0, width, height); glViewport(0, 0, width, height);
pMat = glm::perspective(glm::radians(60.0f), aspect, 0.1f, 1000.0f); pMat = glm::perspective(glm::radians(60.0f), aspect, 0.1f, 1000.0f);
pyrTexture = loadTexture("assets/texture/block/grass_block/top.png"); grass_block_texture[0] = loadTexture("assets/texture/block/grass_block/front.png");
grass_block_texture[1] = loadTexture("assets/texture/block/grass_block/right.png");
grass_block_texture[2] = loadTexture("assets/texture/block/grass_block/back.png");
grass_block_texture[3] = loadTexture("assets/texture/block/grass_block/left.png");
grass_block_texture[4] = loadTexture("assets/texture/block/grass_block/top.png");
grass_block_texture[5] = loadTexture("assets/texture/block/grass_block/base.png");
for (int i = 0; i < 6; i++) {
glBindTexture(GL_TEXTURE_2D, grass_block_texture[i]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glGenerateMipmap(GL_TEXTURE_2D);
}
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
setupVertices(); setupVertices();
} }
@@ -191,6 +209,12 @@ void display(GLFWwindow* window, double currentTime) {
updateMoveCamera(); updateMoveCamera();
for (int i = 0; i < WORLD_SIZE_X; i++) {
for (int j = 0; j < WORLD_SIZE_Z; j++) {
blockPresent[i][j] = true;
}
}
glClearColor(0.0, 0.0, 0.0, 1.0); glClearColor(0.0, 0.0, 0.0, 1.0);
glClear(GL_COLOR_BUFFER_BIT); glClear(GL_COLOR_BUFFER_BIT);
glClear(GL_DEPTH_BUFFER_BIT); glClear(GL_DEPTH_BUFFER_BIT);
@@ -216,11 +240,7 @@ void display(GLFWwindow* window, double currentTime) {
glBindVertexArray(vao[0]); glBindVertexArray(vao[0]);
//sMat = glm::scale(glm::mat4(1.0f), glm::vec3(0.3f, 0.3f, 0.3f)); //sMat = glm::scale(glm::mat4(1.0f), glm::vec3(0.3f, 0.3f, 0.3f));
mMat = glm::translate(glm::mat4(1.0f), glm::vec3(pyLocX, pyLocY, pyLocZ));
vMat = getCameraLookAt();
mvMat = vMat * mMat;
glUniformMatrix4fv(mvLoc, 1, GL_FALSE, glm::value_ptr(mvMat));
glUniformMatrix4fv(projLoc, 1 ,GL_FALSE, glm::value_ptr(pMat));
glBindBuffer(GL_ARRAY_BUFFER, vbo[0]); glBindBuffer(GL_ARRAY_BUFFER, vbo[0]);
@@ -232,18 +252,49 @@ void display(GLFWwindow* window, double currentTime) {
glEnableVertexAttribArray(1); glEnableVertexAttribArray(1);
glActiveTexture(GL_TEXTURE0); glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, pyrTexture); for (int x = -16; x < 16; x++) {
for (int z = -16; z < 16; z++) {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); int ix = x + 16;
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); int iz = z + 16;
glGenerateMipmap(GL_TEXTURE_2D);
glEnable(GL_DEPTH_TEST); mMat = glm::translate(glm::mat4(1.0f), glm::vec3((float)x, 0.0f, (float)z));
glDepthFunc(GL_LEQUAL); vMat = getCameraLookAt();
mvMat = vMat * mMat;
glUniformMatrix4fv(mvLoc, 1, GL_FALSE, glm::value_ptr(mvMat));
glUniformMatrix4fv(projLoc, 1 ,GL_FALSE, glm::value_ptr(pMat));
//glPointSize(30.0f); bool drawFace[6] = {true, true, true, true, true, true};
if (z < 15 && blockPresent[ix][iz + 1]) {
drawFace[0] = false;
}
if (x < 15 && blockPresent[ix + 1][iz]) {
drawFace[1] = false;
}
if (z > -16 && blockPresent[ix][iz + 1]) {
drawFace[2] = false;
}
if (x > -16 && blockPresent[ix - 1][iz]) {
drawFace[3] = false;
}
for (int face = 0; face < 6; face++) {
if (!drawFace[face]) {
continue;
}
glBindTexture(GL_TEXTURE_2D, grass_block_texture[face]);
//glPointSize(30.0f);
glDrawArrays(GL_TRIANGLES, face * 6, 6);
}
}
}
glDrawArrays(GL_TRIANGLES, 0, 36);
} }
void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods) { void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods) {