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Add proper wireframe mode, rotation to triangle

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This commit is contained in:
Doyle Thai 2016-11-12 00:22:09 +11:00
parent 6d67485d49
commit 981d87a2d7
7 changed files with 232 additions and 165 deletions
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19
src/Asteroid.c
View File

@ -193,7 +193,7 @@ void asteroid_gameUpdateAndRender(GameState *state, Memory *memory,
ship->scale = 1;
ship->type = entitytype_ship;
ship->direction = direction_null;
ship->tex = asset_getTex(&state->assetManager, "nullTex");
ship->tex = NULL;
ship->collides = FALSE;
}
@ -293,17 +293,22 @@ void asteroid_gameUpdateAndRender(GameState *state, Memory *memory,
v2_add(halfAccelerationDtSquared, oldVelocityDt), oldPos);
}
renderer_entity(&state->renderer, state->camera, entity, V2(0, 0), 0,
V4(0.0f, 1.0f, 1.0f, 1.0f));
RenderFlags flags = renderflag_wireframe;
renderer_entity(&state->renderer, state->camera, entity, V2(0, 0),
0, V4(0.4f, 0.8f, 1.0f, 1.0f), flags);
}
RenderTex nullRenderTex = renderer_createNullRenderTex(&state->assetManager);
TrianglePoints triangle = {0};
triangle.points[0] = V2(100, 200);
triangle.points[2] = V2(100, 100);
triangle.points[2] = V2(100, 300);
triangle.points[1] = V2(200, 100);
renderer_triangle(&state->renderer, state->camera, triangle, V2(0, 0), 0,
nullRenderTex, V4(1, 1, 1, 1));
LOCAL_PERSIST Radians rotation = 0.0f;
rotation += DEGREES_TO_RADIANS(((60.0f) * dt));
RenderFlags flags = renderflag_wireframe;
renderer_triangle(&state->renderer, state->camera, triangle, V2(0, 0),
rotation, NULL, V4(1, 1, 1, 1), flags);
renderer_renderGroups(&state->renderer);
}

8
src/Debug.c
View File

@ -229,9 +229,9 @@ INTERNAL void updateAndRenderDebugStack(Renderer *renderer, MemoryArena_ *arena,
{
f32 rotate = 0;
v4 color = V4(0, 0, 0, 1);
renderer_staticString(renderer, arena, &GLOBAL_debug.font,
GLOBAL_debug.debugStrings[i],
GLOBAL_debug.currStringP, V2(0, 0), rotate, color);
renderer_staticString(
renderer, arena, &GLOBAL_debug.font, GLOBAL_debug.debugStrings[i],
GLOBAL_debug.currStringP, V2(0, 0), rotate, color, 0);
GLOBAL_debug.currStringP.y -= (0.9f * GLOBAL_debug.stringLineGap);
}
@ -263,7 +263,7 @@ INTERNAL void renderConsole(Renderer *renderer, MemoryArena_ *arena)
v4 color = V4(0, 0, 0, 1);
renderer_staticString(renderer, arena, &GLOBAL_debug.font,
GLOBAL_debug.console[i], consoleStrP,
V2(0, 0), rotate, color);
V2(0, 0), rotate, color, 0);
consoleStrP.y -= (0.9f * GLOBAL_debug.stringLineGap);
}
}

245
src/Renderer.c
View File

@ -8,8 +8,6 @@
#include "Dengine/Shader.h"
#include "Dengine/Texture.h"
#define RENDER_BOUNDING_BOX FALSE
typedef struct RenderQuad
{
Vertex vertex[4];
@ -22,7 +20,8 @@ typedef struct RenderTriangle
INTERNAL void addVertexToRenderGroup(Renderer *renderer, Texture *tex, v4 color,
Vertex *vertexList, i32 numVertexes,
enum RenderMode targetRenderMode)
enum RenderMode targetRenderMode,
RenderFlags flags)
{
#ifdef DENGINE_DEBUG
@ -38,26 +37,50 @@ INTERNAL void addVertexToRenderGroup(Renderer *renderer, Texture *tex, v4 color,
{
RenderGroup *group = &renderer->groups[i];
b32 groupIsValid = FALSE;
if (group->tex)
if (group->init)
{
/* If the textures match and have the same color modulation, we can
* add these vertices to the current group */
if (group->tex->id == tex->id &&
v4_equals(group->color, color) && group->mode == targetRenderMode)
b32 renderModeMatches = FALSE;
if (group->mode == targetRenderMode) renderModeMatches = TRUE;
b32 colorMatches = FALSE;
if (v4_equals(group->color, color)) colorMatches = TRUE;
b32 flagsMatches = FALSE;
if (group->flags == flags) flagsMatches = TRUE;
b32 texMatches = TRUE;
if (!tex && !group->tex)
{
groupIsValid = TRUE;
texMatches = TRUE;
}
else if (tex && group->tex)
{
if (group->tex->id == tex->id)
{
texMatches = TRUE;
}
}
if (texMatches && colorMatches && renderModeMatches && flagsMatches)
groupIsValid = TRUE;
}
else
{
/* New group, unused so initialise it */
groupIsValid = TRUE;
// NOTE(doyle): Mark first vertex as degenerate vertex
group->vertexIndex++;
// NOTE(doyle): Mark first vertex as degenerate vertex, but where we
// request wireframe mode- we can't use degenerate vertexes for line
// mode
if (!(flags & renderflag_wireframe)) group->vertexIndex++;
group->init = TRUE;
group->tex = tex;
group->color = color;
group->mode = targetRenderMode;
group->flags = flags;
#ifdef DENGINE_DEBUG
debug_countIncrement(debugcount_renderGroups);
@ -132,8 +155,54 @@ INTERNAL void bufferRenderGroupToGL(Renderer *renderer, RenderGroup *group)
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
INTERNAL void applyRotationToVertexes(v2 pos, v2 pivotPoint, Radians rotate,
Vertex *vertexList, i32 vertexListSize)
{
// NOTE(doyle): Move the world origin to the base position of the object.
// Then move the origin to the pivot point (e.g. center of object) and
// rotate from that point.
v2 pointOfRotation = v2_add(pivotPoint, pos);
mat4 rotateMat = mat4_translate(pointOfRotation.x, pointOfRotation.y, 0.0f);
rotateMat = mat4_mul(rotateMat, mat4_rotate(rotate, 0.0f, 0.0f, 1.0f));
rotateMat = mat4_mul(rotateMat, mat4_translate(-pointOfRotation.x,
-pointOfRotation.y, 0.0f));
for (i32 i = 0; i < vertexListSize; i++)
{
// NOTE(doyle): Manual matrix multiplication since vertex pos is 2D and
// matrix is 4D
v2 oldP = vertexList[i].pos;
v2 newP = {0};
newP.x = (oldP.x * rotateMat.e[0][0]) + (oldP.y * rotateMat.e[1][0]) +
(rotateMat.e[3][0]);
newP.y = (oldP.x * rotateMat.e[0][1]) + (oldP.y * rotateMat.e[1][1]) +
(rotateMat.e[3][1]);
vertexList[i].pos = newP;
}
}
INTERNAL v4 getTexRectNormaliseDeviceCoords(RenderTex renderTex)
{
/* Convert texture coordinates to normalised texture coordinates */
v4 result = renderTex.texRect;
if (renderTex.tex)
{
v2 texNdcFactor =
V2(1.0f / renderTex.tex->width, 1.0f / renderTex.tex->height);
result.e[0] *= texNdcFactor.w;
result.e[1] *= texNdcFactor.h;
result.e[2] *= texNdcFactor.w;
result.e[3] *= texNdcFactor.h;
}
return result;
}
INTERNAL RenderQuad_ createRenderQuad(Renderer *renderer, v2 pos, v2 size,
v2 pivotPoint, f32 rotate,
v2 pivotPoint, Radians rotate,
RenderTex renderTex)
{
/*
@ -152,18 +221,7 @@ INTERNAL RenderQuad_ createRenderQuad(Renderer *renderer, v2 pos, v2 size,
v4 vertexPair = {0};
vertexPair.vec2[0] = pos;
vertexPair.vec2[1] = v2_add(pos, size);
/* Convert texture coordinates to normalised texture coordinates */
v4 texRectNdc = renderTex.texRect;
if (renderTex.tex)
{
v2 texNdcFactor =
V2(1.0f / renderTex.tex->width, 1.0f / renderTex.tex->height);
texRectNdc.e[0] *= texNdcFactor.w;
texRectNdc.e[1] *= texNdcFactor.h;
texRectNdc.e[2] *= texNdcFactor.w;
texRectNdc.e[3] *= texNdcFactor.h;
}
v4 texRectNdc = getTexRectNormaliseDeviceCoords(renderTex);
// NOTE(doyle): Create a quad composed of 4 vertexes to be rendered as
// a triangle strip using vertices v0, v1, v2, then v2, v1, v3 (note the
@ -185,53 +243,20 @@ INTERNAL RenderQuad_ createRenderQuad(Renderer *renderer, v2 pos, v2 size,
// NOTE(doyle): Precalculate rotation on vertex positions
// NOTE(doyle): No translation/scale matrix as we pre-calculate it from
// entity data and work in world space until GLSL uses the projection matrix
// NOTE(doyle): Move the world origin to the base position of the object.
// Then move the origin to the pivot point (e.g. center of object) and
// rotate from that point.
v2 pointOfRotation = v2_add(pivotPoint, pos);
mat4 rotateMat = mat4_translate(pointOfRotation.x, pointOfRotation.y, 0.0f);
rotateMat = mat4_mul(rotateMat, mat4_rotate(rotate, 0.0f, 0.0f, 1.0f));
rotateMat = mat4_mul(rotateMat, mat4_translate(-pointOfRotation.x,
-pointOfRotation.y, 0.0f));
for (i32 i = 0; i < ARRAY_COUNT(result.vertex); i++)
{
// NOTE(doyle): Manual matrix multiplication since vertex pos is 2D and
// matrix is 4D
v2 oldP = result.vertex[i].pos;
v2 newP = {0};
newP.x = (oldP.x * rotateMat.e[0][0]) + (oldP.y * rotateMat.e[1][0]) +
(rotateMat.e[3][0]);
newP.y = (oldP.x * rotateMat.e[0][1]) + (oldP.y * rotateMat.e[1][1]) +
(rotateMat.e[3][1]);
result.vertex[i].pos = newP;
}
applyRotationToVertexes(pos, pivotPoint, rotate, result.vertex,
ARRAY_COUNT(result.vertex));
return result;
}
INTERNAL RenderTriangle_ createRenderTriangle(Renderer *renderer,
TrianglePoints triangle,
v2 pivotPoint, f32 rotate,
v2 pivotPoint, Radians rotate,
RenderTex renderTex)
{
/* Convert texture coordinates to normalised texture coordinates */
v4 texRectNdc = renderTex.texRect;
if (renderTex.tex)
{
v2 texNdcFactor =
V2(1.0f / renderTex.tex->width, 1.0f / renderTex.tex->height);
texRectNdc.e[0] *= texNdcFactor.w;
texRectNdc.e[1] *= texNdcFactor.h;
texRectNdc.e[2] *= texNdcFactor.w;
texRectNdc.e[3] *= texNdcFactor.h;
}
v4 texRectNdc = getTexRectNormaliseDeviceCoords(renderTex);
RenderTriangle_ result = {0};
result.vertex[0].pos = triangle.points[0];
result.vertex[0].texCoord = V2(texRectNdc.x, texRectNdc.w);
@ -242,39 +267,34 @@ INTERNAL RenderTriangle_ createRenderTriangle(Renderer *renderer,
result.vertex[2].texCoord = V2(texRectNdc.z, texRectNdc.w);
if (rotate == 0) return result;
applyRotationToVertexes(triangle.points[0], pivotPoint, rotate,
result.vertex, ARRAY_COUNT(result.vertex));
return result;
}
INTERNAL inline RenderQuad_
createDefaultTexQuad(Renderer *renderer, RenderTex renderTex)
createDefaultTexQuad(Renderer *renderer, RenderTex *renderTex)
{
RenderQuad_ result = {0};
result = createRenderQuad(renderer, V2(0, 0), V2(0, 0), V2(0, 0),
0.0f, renderTex);
0.0f, *renderTex);
return result;
}
INTERNAL void renderGLBufferedData(Renderer *renderer, RenderGroup *renderGroup)
INTERNAL void renderGLBufferedData(Renderer *renderer, RenderGroup *group)
{
ASSERT(renderGroup->mode < rendermode_invalid);
ASSERT(group->mode < rendermode_invalid);
/* Load transformation matrix */
shader_use(renderer->shader);
GL_CHECK_ERROR();
/* Set color modulation value */
shader_uniformSetVec4f(renderer->shader, "spriteColor",
renderGroup->color);
group->color);
GL_CHECK_ERROR();
/* Send draw calls */
#if RENDER_BOUNDING_BOX
glBindVertexArray(renderer->vao[renderGroup->mode]);
glDrawArrays(GL_TRIANGLE_STRIP, 0, renderer->numVertexesInVbo);
glBindVertexArray(0);
#endif
Texture *tex = renderGroup->tex;
Texture *tex = group->tex;
if (tex)
{
glActiveTexture(GL_TEXTURE0);
@ -282,13 +302,17 @@ INTERNAL void renderGLBufferedData(Renderer *renderer, RenderGroup *renderGroup)
shader_uniformSet1i(renderer->shader, "tex", 0);
}
glBindVertexArray(renderer->vao[renderGroup->mode]);
glDrawArrays(GL_TRIANGLE_STRIP, 0, renderer->numVertexesInVbo);
GL_CHECK_ERROR();
glBindVertexArray(renderer->vao[group->mode]);
#ifdef DENGINE_DEBUG
u32 drawMethod = GL_TRIANGLE_STRIP;
if (group->flags & renderflag_wireframe)
{
drawMethod = GL_LINE_LOOP;
}
glDrawArrays(drawMethod, 0, renderer->numVertexesInVbo);
GL_CHECK_ERROR();
debug_countIncrement(debugcount_drawArrays);
#endif
/* Unbind */
glBindVertexArray(0);
@ -304,14 +328,29 @@ RenderTex renderer_createNullRenderTex(AssetManager *const assetManager)
}
void renderer_rect(Renderer *const renderer, Rect camera, v2 pos, v2 size,
v2 pivotPoint, f32 rotate, RenderTex renderTex, v4 color)
v2 pivotPoint, Radians rotate, RenderTex *renderTex, v4 color,
RenderFlags flags)
{
// NOTE(doyle): Bottom left and top right position of quad in world space
v2 posInCameraSpace = v2_sub(pos, camera.pos);
RenderQuad_ quad = createRenderQuad(renderer, posInCameraSpace, size,
pivotPoint, rotate, renderTex);
{ // addRenderQuadToRenderGroup
RenderTex emptyRenderTex = {0};
if (!renderTex) renderTex = &emptyRenderTex;
RenderQuad_ quad = createRenderQuad(renderer, posInCameraSpace, size,
pivotPoint, rotate, *renderTex);
// addRenderQuadToRenderGroup
if (flags & renderflag_wireframe)
{
Vertex vertexList[4] = {quad.vertex[0], quad.vertex[1], quad.vertex[3],
quad.vertex[2]};
addVertexToRenderGroup(renderer, renderTex->tex, color, vertexList,
ARRAY_COUNT(vertexList), rendermode_quad,
flags);
}
else
{
/*
NOTE(doyle): Entity rendering is always done in two pairs of
triangles, i.e. quad. To batch render quads as a triangle strip, we
@ -333,38 +372,39 @@ void renderer_rect(Renderer *const renderer, Rect camera, v2 pos, v2 size,
The first has been chosen for simplicity of code, at the cost of
1 degenerate vertex at the start of each render group.
*/
Vertex vertexList[6] = {quad.vertex[0], quad.vertex[0], quad.vertex[1],
quad.vertex[2], quad.vertex[3], quad.vertex[3]};
addVertexToRenderGroup(renderer, renderTex.tex, color, vertexList,
ARRAY_COUNT(vertexList), rendermode_quad);
addVertexToRenderGroup(renderer, renderTex->tex, color, vertexList,
ARRAY_COUNT(vertexList), rendermode_quad, flags);
}
}
void renderer_triangle(Renderer *const renderer, Rect camera,
TrianglePoints triangle, v2 pivotPoint, f32 rotate,
RenderTex renderTex, v4 color)
TrianglePoints triangle, v2 pivotPoint, Radians rotate,
RenderTex *renderTex, v4 color, RenderFlags flags)
{
TrianglePoints triangleInCamSpace = {0};
ASSERT(ARRAY_COUNT(triangle.points) ==
ARRAY_COUNT(triangleInCamSpace.points));
for (i32 i = 0; i < ARRAY_COUNT(triangleInCamSpace.points); i++)
{
triangleInCamSpace.points[i] = v2_sub(triangle.points[i], camera.pos);
}
RenderTex emptyRenderTex = {0};
if (!renderTex) renderTex = &emptyRenderTex;
RenderTriangle_ renderTriangle = createRenderTriangle(
renderer, triangleInCamSpace, pivotPoint, rotate, renderTex);
renderer, triangleInCamSpace, pivotPoint, rotate, *renderTex);
addVertexToRenderGroup(
renderer, renderTex.tex, color, renderTriangle.vertex,
ARRAY_COUNT(renderTriangle.vertex), rendermode_triangle);
renderer, renderTex->tex, color, renderTriangle.vertex,
ARRAY_COUNT(renderTriangle.vertex), rendermode_triangle, flags);
}
void renderer_string(Renderer *const renderer, MemoryArena_ *arena, Rect camera,
Font *const font, const char *const string, v2 pos,
v2 pivotPoint, f32 rotate, v4 color)
v2 pivotPoint, Radians rotate, v4 color, RenderFlags flags)
{
i32 strLen = common_strlen(string);
if (strLen <= 0) return;
@ -422,7 +462,7 @@ void renderer_string(Renderer *const renderer, MemoryArena_ *arena, Rect camera,
}
addVertexToRenderGroup(renderer, tex, color, vertexList,
numVertexesToAlloc, rendermode_quad);
numVertexesToAlloc, rendermode_quad, flags);
// TODO(doyle): Mem free
// PLATFORM_MEM_FREE(arena, vertexList,
// sizeof(Vertex) * numVertexesToAlloc);
@ -430,7 +470,7 @@ void renderer_string(Renderer *const renderer, MemoryArena_ *arena, Rect camera,
}
void renderer_entity(Renderer *renderer, Rect camera, Entity *entity,
v2 pivotPoint, f32 rotate, v4 color)
v2 pivotPoint, Radians rotate, v4 color, RenderFlags flags)
{
// TODO(doyle): Batch into render groups
@ -442,14 +482,18 @@ void renderer_entity(Renderer *renderer, Rect camera, Entity *entity,
if (math_pointInRect(camera, leftAlignedP) ||
math_pointInRect(camera, rightAlignedP))
{
EntityAnim *entityAnim = &entity->animList[entity->animListIndex];
RenderTex renderTex = {0};
if (entity->tex)
{
EntityAnim *entityAnim = &entity->animList[entity->animListIndex];
v4 texRect = {0};
if (entityAnim->anim)
{
Animation *anim = entityAnim->anim;
char *frameName = anim->frameList[entityAnim->currFrame];
SubTexture subTex = asset_getAtlasSubTex(anim->atlas, frameName);
SubTexture subTex =
asset_getAtlasSubTex(anim->atlas, frameName);
texRect.vec2[0] = subTex.rect.pos;
texRect.vec2[1] = v2_add(subTex.rect.pos, subTex.rect.size);
@ -466,9 +510,12 @@ void renderer_entity(Renderer *renderer, Rect camera, Entity *entity,
flipTexCoord(&texRect, TRUE, FALSE);
}
RenderTex renderTex = {entity->tex, texRect};
renderTex.tex = entity->tex;
renderTex.texRect = texRect;
}
renderer_rect(renderer, camera, entity->pos, entity->size, pivotPoint,
entity->rotation + rotate, renderTex, color);
entity->rotation + rotate, &renderTex, color, flags);
}
}
@ -477,7 +524,7 @@ void renderer_renderGroups(Renderer *renderer)
for (i32 i = 0; i < ARRAY_COUNT(renderer->groups); i++)
{
RenderGroup *currGroup = &renderer->groups[i];
if (currGroup->tex)
if (currGroup->init)
{
bufferRenderGroupToGL(renderer, currGroup);
renderGLBufferedData(renderer, currGroup);

33
src/UserInterface.c
View File

@ -67,13 +67,14 @@ i32 userInterface_button(UiState *const uiState, MemoryArena_ *const arena,
if (uiState->kbdItem == id)
{
// Draw outline
renderer_staticRect(
renderer, v2_add(V2(-2, -2), v2_add(buttonOffset, rect.pos)),
v2_add(V2(4, 4), rect.size), V2(0, 0), 0, renderTex, buttonColor);
renderer_staticRect(renderer,
v2_add(V2(-2, -2), v2_add(buttonOffset, rect.pos)),
v2_add(V2(4, 4), rect.size), V2(0, 0), 0, &renderTex,
buttonColor, 0);
}
renderer_staticRect(renderer, v2_add(buttonOffset, rect.pos), rect.size,
V2(0, 0), 0, renderTex, buttonColor);
V2(0, 0), 0, &renderTex, buttonColor, 0);
if (label)
{
@ -95,7 +96,7 @@ i32 userInterface_button(UiState *const uiState, MemoryArena_ *const arena,
labelPos = v2_add(labelPos, buttonOffset);
renderer_staticString(renderer, arena, font, label, labelPos, V2(0, 0),
0, V4(0, 0, 0, 1));
0, V4(0, 0, 0, 1), 0);
}
// After renderering before click check, see if we need to process keys
@ -169,12 +170,12 @@ i32 userInterface_scrollbar(UiState *const uiState,
// Draw outline
renderer_staticRect(renderer, v2_add(V2(-2, -2), scrollBarRect.pos),
v2_add(V2(4, 4), scrollBarRect.size), V2(0, 0), 0,
renderTex, V4(1, 0, 0, 1));
&renderTex, V4(1, 0, 0, 1), 0);
}
// Render scroll bar background
renderer_staticRect(renderer, scrollBarRect.pos, scrollBarRect.size,
V2(0, 0), 0, renderTex, V4(0.75f, 0.5f, 0.5f, 1));
V2(0, 0), 0, &renderTex, V4(0.75f, 0.5f, 0.5f, 1), 0);
// Render scroll bar slider
v2 sliderSize = V2(16, 16);
@ -190,8 +191,8 @@ i32 userInterface_scrollbar(UiState *const uiState,
else
sliderColor = V4(0.0f, 1.0f, 0, 1);
renderer_staticRect(renderer, sliderPos, sliderSize, V2(0, 0), 0, renderTex,
sliderColor);
renderer_staticRect(renderer, sliderPos, sliderSize, V2(0, 0), 0, &renderTex,
sliderColor, 0);
if (uiState->kbdItem == id)
{
@ -283,27 +284,27 @@ i32 userInterface_textField(UiState *const uiState, MemoryArena_ *const arena,
// Draw outline
renderer_staticRect(renderer, v2_add(V2(-2, -2), rect.pos),
v2_add(V2(4, 4), rect.size), V2(0, 0), 0,
renderTex, V4(1.0f, 0, 0, 1));
&renderTex, V4(1.0f, 0, 0, 1), 0);
}
// Render text field
renderer_staticRect(renderer, rect.pos, rect.size, V2(0, 0), 0,
renderTex, V4(0.75f, 0.5f, 0.5f, 1));
&renderTex, V4(0.75f, 0.5f, 0.5f, 1), 0);
if (uiState->activeItem == id || uiState->hotItem == id)
{
renderer_staticRect(renderer, rect.pos, rect.size, V2(0, 0), 0,
renderTex, V4(0.75f, 0.75f, 0.0f, 1));
&renderTex, V4(0.75f, 0.75f, 0.0f, 1), 0);
}
else
{
renderer_staticRect(renderer, rect.pos, rect.size, V2(0, 0), 0,
renderTex, V4(0.5f, 0.5f, 0.5f, 1));
&renderTex, V4(0.5f, 0.5f, 0.5f, 1), 0);
}
v2 strPos = rect.pos;
renderer_staticString(renderer, arena, font, string, strPos, V2(0, 0), 0,
V4(0, 0, 0, 1));
V4(0, 0, 0, 1), 0);
if (uiState->kbdItem == id)
{
@ -365,11 +366,11 @@ i32 userInterface_window(UiState *const uiState, MemoryArena_ *const arena,
Rect rect = window->rect;
RenderTex nullRenderTex = renderer_createNullRenderTex(assetManager);
renderer_staticRect(renderer, rect.pos, rect.size, V2(0, 0), 0,
nullRenderTex, V4(0.25f, 0.25f, 0.5f, 0.5f));
&nullRenderTex, V4(0.25f, 0.25f, 0.5f, 0.5f), 0);
v2 menuTitleP = v2_add(rect.pos, V2(0, rect.size.h - 10));
renderer_staticString(renderer, arena, font, window->title, menuTitleP,
V2(0, 0), 0, V4(0, 0, 0, 1));
V2(0, 0), 0, V4(0, 0, 0, 1), 0);
/* Draw window elements */
i32 firstActiveChildId = -1;

2
src/dengine.c
View File

@ -200,7 +200,7 @@ i32 main(void)
glfwPollEvents();
/* Rendering commands here*/
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClearColor(0.2f, 0.2f, 0.2f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
asteroid_gameUpdateAndRender(&gameState, &memory, windowSize,

2
src/include/Dengine/Math.h
View File

@ -11,6 +11,8 @@
#define RADIANS_TO_DEGREES(x) (x * (180.0f / MATH_PI))
#define SQRT(x) (sqrtf(x))
typedef f32 Radians;
INTERNAL inline f32 math_acosf(f32 a)
{
f32 result = acosf(a);

52
src/include/Dengine/Renderer.h
View File

@ -28,16 +28,10 @@ typedef struct TrianglePoints {
v2 points[3];
} TrianglePoints;
typedef struct RenderGroup
{
enum RenderMode mode;
Texture *tex;
v4 color;
Vertex *vertexList;
i32 vertexIndex;
} RenderGroup;
typedef u32 RenderFlags;
enum RenderFlag {
renderflag_wireframe = 0x1,
};
enum RenderMode
{
@ -47,6 +41,20 @@ enum RenderMode
rendermode_invalid,
};
typedef struct RenderGroup
{
b32 init;
RenderFlags flags;
enum RenderMode mode;
Texture *tex;
v4 color;
Vertex *vertexList;
i32 vertexIndex;
} RenderGroup;
typedef struct Renderer
{
Shader *shader;
@ -62,6 +70,7 @@ typedef struct Renderer
i32 groupCapacity;
} Renderer;
// TODO(doyle): Use z-index occluding for rendering
RenderTex
renderer_createNullRenderTex(AssetManager *const assetManager);
@ -69,37 +78,40 @@ renderer_createNullRenderTex(AssetManager *const assetManager);
// TODO(doyle): Clean up lines
// Renderer::~Renderer() { glDeleteVertexArrays(1, &this->quadVAO); }
void renderer_rect(Renderer *const renderer, Rect camera, v2 pos, v2 size,
v2 pivotPoint, f32 rotate, RenderTex renderTex, v4 color);
v2 pivotPoint, Radians rotate, RenderTex *renderTex, v4 color,
RenderFlags flags);
inline void renderer_staticRect(Renderer *const renderer, v2 pos, v2 size,
v2 pivotPoint, f32 rotate, RenderTex renderTex,
v4 color)
v2 pivotPoint, Radians rotate, RenderTex *renderTex,
v4 color, RenderFlags flags)
{
Rect staticCamera = {V2(0, 0), renderer->size};
renderer_rect(renderer, staticCamera, pos, size, pivotPoint, rotate,
renderTex, color);
renderTex, color, flags);
}
void renderer_triangle(Renderer *const renderer, Rect camera,
TrianglePoints triangle, v2 pivotPoint, f32 rotate,
RenderTex renderTex, v4 color);
TrianglePoints triangle, v2 pivotPoint, Radians rotate,
RenderTex *renderTex, v4 color, RenderFlags flags);
void renderer_string(Renderer *const renderer, MemoryArena_ *arena,
Rect camera, Font *const font,
const char *const string, v2 pos, v2 pivotPoint,
f32 rotate, v4 color);
Radians rotate, v4 color, RenderFlags flags);
inline void renderer_staticString(Renderer *const renderer, MemoryArena_ *arena,
Font *const font, const char *const string,
v2 pos, v2 pivotPoint, f32 rotate, v4 color)
v2 pos, v2 pivotPoint, Radians rotate, v4 color,
RenderFlags flags)
{
Rect staticCamera = {V2(0, 0), renderer->size};
renderer_string(renderer, arena, staticCamera, font, string, pos,
pivotPoint, rotate, color);
pivotPoint, rotate, color, flags);
}
void renderer_entity(Renderer *renderer, Rect camera, Entity *entity,
v2 pivotPoint, f32 rotate, v4 color);
v2 pivotPoint, Radians rotate, v4 color,
RenderFlags flags);
void renderer_renderGroups(Renderer *renderer);