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added TileMaps to TSE

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This commit is contained in:
Mexpert_PRO
2026-02-08 18:09:46 +01:00
parent ea2dc4f6b5
commit 330d4b26dc
12 changed files with 643 additions and 9 deletions
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212
TSE_GlfwOpenGlImpl/src/shader/basicTileMapShader.cpp Normal file
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@@ -0,0 +1,212 @@
#include "basicTileMapShader.hpp"
#include "BehaviourScripts/Renderable.hpp"
#include "BehaviourScripts/TileMap.hpp"
#include "Color.hpp"
#include "basicTileMapShaderGLSL.hpp"
#define SHADER_MESH_INDEX 0
#define SHADER_POS_INDEX 1
#define SHADER_SPRITE_INDEX 2
#define SHADER_PACKAGE_SIZE sizeof(float) * (3 + 1)
TSE::GLFW::BasicTileMapShader* TSE::GLFW::BasicTileMapShader::instance = nullptr;
TSE::GLFW::BasicTileMapShader *TSE::GLFW::BasicTileMapShader::Instance()
{
return instance;
}
void TSE::GLFW::BasicTileMapShader::Destroy()
{
if(instance != nullptr)
delete instance;
instance = nullptr;
}
void TSE::GLFW::BasicTileMapShader::Init(float width, float height)
{
std::vector<std::unique_ptr<ShaderPart>> parts;
parts.push_back(ShaderPart::LoadFromString(vertTile, GL_VERTEX_SHADER));
parts.push_back(ShaderPart::LoadFromString(fragTile, GL_FRAGMENT_SHADER));
instance = new BasicTileMapShader(std::move(parts));
instance->Enable();
int texIDs[] = { 0 };
instance->SetUniform("atlas", 0);
instance->Disable();
}
TSE::GLFW::BasicTileMapShader::BasicTileMapShader(std::vector<std::unique_ptr<ShaderPart>> &&parts) : Shader(parts)
{
PackageSize = SHADER_PACKAGE_SIZE;
}
TSE::GLFW::BasicTileMapShader::~BasicTileMapShader()
{
if (meshVBO) glDeleteBuffers(1, &meshVBO);
if (meshIBO) glDeleteBuffers(1, &meshIBO);
}
void TSE::GLFW::BasicTileMapShader::SetMesh(const void *verts, int vertCount, int stride, int floatCountPerVertex, int posOffsetBytes, GLenum primitive, const void *indices, int indexCount, GLenum indexType)
{
GLint prevVAO = 0, prevArrayBuffer = 0, prevElementBuffer = 0;
glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &prevVAO);
glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &prevArrayBuffer);
glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &prevElementBuffer);
if (!meshVBO) glGenBuffers(1, &meshVBO);
glBindBuffer(GL_ARRAY_BUFFER, meshVBO);
glBufferData(GL_ARRAY_BUFFER, vertCount * stride, verts, GL_STATIC_DRAW);
if (indices && indexCount > 0)
{
if (!meshIBO) glGenBuffers(1, &meshIBO);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, meshIBO);
GLsizeiptr idxSize =
(indexType == GL_UNSIGNED_INT ? 4 :
indexType == GL_UNSIGNED_SHORT? 2 : 1) * indexCount;
glBufferData(GL_ELEMENT_ARRAY_BUFFER, idxSize, indices, GL_STATIC_DRAW);
meshIndexCount = indexCount;
meshIndexType = indexType;
}
else
{
// Kein Index-Buffer
if (meshIBO) { glDeleteBuffers(1, &meshIBO); meshIBO = 0; }
meshIndexCount = 0;
}
meshVertexCount = vertCount;
meshStride = stride;
meshPosOffset = posOffsetBytes;
meshPosSize = floatCountPerVertex;
meshPrimitive = primitive;
meshReady = true;
glBindBuffer(GL_ARRAY_BUFFER, prevArrayBuffer);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, prevElementBuffer);
glBindVertexArray(prevVAO);
}
void TSE::GLFW::BasicTileMapShader::OnEnable() const
{
if (!meshReady)
{
// Fallback: unit-Quad als TRIANGLE_FAN (4 Vertices, 2D Positionen)
const float quad[8] = { -0.5f,-0.5f, 0.5f,-0.5f, 0.5f,0.5f, -0.5f,0.5f };
const_cast<BasicTileMapShader*>(this)->SetMesh(
quad, 4, sizeof(float)*2, 2, 0, GL_TRIANGLE_FAN
);
}
GLint prevArrayBuffer = 0;
glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &prevArrayBuffer);
glBindBuffer(GL_ARRAY_BUFFER, meshVBO);
glEnableVertexAttribArray(SHADER_MESH_INDEX); // LOC_QUAD/pos
glVertexAttribPointer(SHADER_MESH_INDEX, meshPosSize, GL_FLOAT, GL_FALSE, meshStride, (void*)meshPosOffset);
glVertexAttribDivisor(SHADER_MESH_INDEX, 0); // per-vertex (Mesh)
glBindBuffer(GL_ARRAY_BUFFER, prevArrayBuffer);
// layout 1: position (vec3)
glEnableVertexAttribArray(SHADER_POS_INDEX);
glVertexAttribPointer(SHADER_POS_INDEX, 3, GL_FLOAT, GL_FALSE, PackageSize, (void*)0);
glVertexAttribDivisor(SHADER_POS_INDEX, 1);
// layout 2: spriteindex (float)
glEnableVertexAttribArray(SHADER_SPRITE_INDEX);
glVertexAttribPointer(SHADER_SPRITE_INDEX, 1, GL_FLOAT, GL_FALSE, PackageSize, (void*)(sizeof(float)*3));
glVertexAttribDivisor(SHADER_SPRITE_INDEX, 1);
}
void TSE::GLFW::BasicTileMapShader::OnDisable() const
{
glDisableVertexAttribArray(SHADER_MESH_INDEX);
glDisableVertexAttribArray(SHADER_POS_INDEX);
glDisableVertexAttribArray(SHADER_SPRITE_INDEX);
}
void TSE::GLFW::BasicTileMapShader::OnFlush()
{
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, TextureID);
}
void TSE::GLFW::BasicTileMapShader::OnDrawCall(int indexCount)
{
if (instanceCount <= 0) return;
SetUniform("spriteCount", &SpriteCount);
SetUniform("spriteScale", &SpriteScale);
GLint prevElementBuffer = 0;
glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &prevElementBuffer);
if (meshIBO && meshIndexCount > 0)
{
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, meshIBO);
glDrawElementsInstanced(meshPrimitive, meshIndexCount, meshIndexType, (void*)0, instanceCount);
}
else
{
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glDrawArraysInstanced(meshPrimitive, 0, meshVertexCount, instanceCount);
}
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, (GLuint)prevElementBuffer);
instanceCount = 0;
}
void TSE::GLFW::BasicTileMapShader::OnSubmit(const Transformable &t, float *&target, TransformationStack &stack, void (*restartDrawcall)(IRenderer &), IRenderer &rnd)
{
auto* r = dynamic_cast<Renderable*>(t.GetBehaviourScript(RENDERABLE));
if (!r) return;
auto* tm = dynamic_cast<TileMap*>(t.GetBehaviourScript(TILE_MAP));
if (!tm) return;
auto tileSet = tm->GetTileSet();
TextureID = tileSet->GetTextueID();
SpriteCount = tileSet->GetCount();
SpriteScale = tm->SpriteScale;
int chunkcount = tm->GetChunkCount();
Vector2 orderedChunks[chunkcount];
tm->GetChunkPositionsInOrder(orderedChunks);
Matrix4x4 matr = t.GetLocalMatrix();
stack.Push(matr);
for(auto chunkPos : orderedChunks)
{
auto chunk = tm->GetChunk(chunkPos);
int spriteCount = chunk->GetSpriteCount();
Vector2 spritePositions[spriteCount];
int spriteIds[spriteCount];
chunk->GetOrderedPositions(spritePositions);
chunk->GetOrderedSpriteIds(spriteIds);
int chunkSize = chunk->GetChunksize();
for (int i = 0; i < spriteCount; i++)
{
Matrix4x4 mat = Matrix4x4::ToTranslationMatrix((chunkPos - chunk->nextLine * chunkPos.y) + spritePositions[i]) * Matrix4x4::ToRotationMatrix(Quaternion()) * Matrix4x4::ToScaleMatrix({1,1,1});
stack.Push(mat);
Vector3 pos = stack.Top() * Vector3(0,0,0);
*target++ = pos.x;
*target++ = pos.y;
*target++ = pos.z;
*target++ = spriteIds[i];
++instanceCount;
stack.Pop();
if(instanceCount >= 20000)
restartDrawcall(rnd);
}
}
restartDrawcall(rnd);
}

44
TSE_GlfwOpenGlImpl/src/shader/basicTileMapShader.hpp Normal file
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@@ -0,0 +1,44 @@
#pragma once
#include "GL/gl3w.h"
#include "GL/gl.h"
#include "Shader.hpp"
#include "Types.hpp"
namespace TSE::GLFW
{
class BasicTileMapShader : public Shader
{
private:
static BasicTileMapShader* instance;
mutable bool meshReady = false;
GLuint meshVBO = 0;
GLuint meshIBO = 0;
GLsizei meshVertexCount = 0; // für DrawArraysInstanced
GLsizei meshIndexCount = 0; // für DrawElementsInstanced
GLenum meshPrimitive = GL_TRIANGLES;
GLenum meshIndexType = GL_UNSIGNED_SHORT;
int instanceCount = 0; // eigener Instanzzähler
GLint meshPosSize = 2; // 2D (Billboard-Formen), für 3D Meshes: 3
GLsizei meshStride = sizeof(float) * 2;
size_t meshPosOffset = 0;
GLuint TextureID;
Vector2 SpriteCount;
Vector2 SpriteScale;
public:
static BasicTileMapShader* Instance();
static void Destroy();
static void Init(float width, float height);
BasicTileMapShader(std::vector<std::unique_ptr<ShaderPart>>&& parts);
~BasicTileMapShader();
void SetMesh(const void* verts, int vertCount, int stride, int floatCountPerVertex, int posOffsetBytes, GLenum primitive, const void* indices = nullptr, int indexCount = 0, GLenum indexType = GL_UNSIGNED_SHORT);
protected:
void OnEnable() const override;
void OnDisable() const override;
void OnFlush() override;
void OnDrawCall(int indexCount) override;
void OnSubmit(const Transformable& t, float*& target, TransformationStack& stack, void (*restartDrawcall)(IRenderer&), IRenderer& rnd) override;
};
} // namespace TSE::GLFW

60
TSE_GlfwOpenGlImpl/src/shader/basicTileMapShaderGLSL.hpp Normal file
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@@ -0,0 +1,60 @@
#pragma once
inline const char* vertTile = R"(
#version 330 core
layout(location = 0) in vec2 aPos;
layout(location = 1) in vec3 iTilePos;
layout(location = 2) in float iSpriteId;
uniform mat4 prMatrix;
uniform mat4 camMatrix;
uniform vec2 spriteCount;
uniform vec2 spriteScale;
out vec2 vUV;
flat out int vSpriteId;
void main()
{
vec3 local = vec3(aPos.x, aPos.y, 0);
vec2 baseUV = aPos + vec2(0.5);
vec3 tileSize = vec3(spriteScale.x, spriteScale.y, 1);
vec3 worldPos = (iTilePos * tileSize) + (local * tileSize);
gl_Position = prMatrix * camMatrix * vec4(worldPos.x, worldPos.y, worldPos.z, 1.0);
vUV = baseUV;
vSpriteId = int(iSpriteId + 0.5);
}
)";
inline const char* fragTile = R"(
#version 330 core
in vec2 vUV;
flat in int vSpriteId;
uniform sampler2D atlas;
uniform vec2 spriteCount;
out vec4 FragColor;
void main()
{
vec2 tileUVSize = 1.0 / spriteCount;
int cols = int(spriteCount.x);
int sx = vSpriteId % cols;
int sy = vSpriteId / cols;
vec2 atlasOffset = vec2(float(sx), float(sy)) * tileUVSize;
vec2 atlasUV = atlasOffset + (vUV * tileUVSize);
vec4 c = texture(atlas, atlasUV);
if (c.a < 0.01) discard;
FragColor = c;
}
)";

5
TSE_GlfwOpenGlImpl/src/shader/defaultShaderHandler.cpp
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@@ -3,6 +3,7 @@
#include "basicTextureShader.hpp"
#include "ditheringShader.hpp"
#include "basicParticleShader.hpp"
#include "basicTileMapShader.hpp"
#include "elements/ShaderRegistry.hpp"
void TSE::GLFW::LoadBasicShaders(float width, float height)
@@ -11,10 +12,12 @@ void TSE::GLFW::LoadBasicShaders(float width, float height)
BasicTextureShader::Init(width, height);
DitheringShader::Init(width, height);
BasicParticleShader::Init(width, height);
BasicTileMapShader::Init(width, height);
ShaderRegistry::SetShader("Basic Unlit Shader", BasicShader::Instance());
ShaderRegistry::SetShader("Basic Unlit Texture Shader", BasicTextureShader::Instance());
ShaderRegistry::SetShader("Basic Unlit Dithering Shader", DitheringShader::Instance());
ShaderRegistry::SetShader("Basic Unlit Particle Shader", BasicParticleShader::Instance());
ShaderRegistry::SetShader("Basic Unlit TileMap Shader", BasicTileMapShader::Instance());
}
void TSE::GLFW::UnLoadBasicShaders()
@@ -23,8 +26,10 @@ void TSE::GLFW::UnLoadBasicShaders()
ShaderRegistry::RemoveShader("Basic Unlit Texture Shader");
ShaderRegistry::RemoveShader("Basic Unlit Dithering Shader");
ShaderRegistry::RemoveShader("Basic Unlit Particle Shader");
ShaderRegistry::RemoveShader("Basic Unlit TileMap Shader");
BasicShader::Destroy();
BasicTextureShader::Destroy();
DitheringShader::Destroy();
BasicParticleShader::Destroy();
BasicTileMapShader::Destroy();
}